1768 lines
46 KiB
C
1768 lines
46 KiB
C
/*
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* Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* SH-Mobile High-Definition Multimedia Interface (HDMI) driver
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* for SLISHDMI13T and SLIPHDMIT IP cores
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*
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* Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
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*/
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#include <linux/component.h>
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#include <linux/irq.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/clk.h>
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#include <linux/hdmi.h>
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#include <linux/regmap.h>
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#include <linux/mfd/syscon.h>
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#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
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#include <linux/of_device.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_edid.h>
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#include <drm/drm_encoder_slave.h>
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#include <video/imx-ipu-v3.h>
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#include "imx-hdmi.h"
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#include "imx-drm.h"
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#define HDMI_EDID_LEN 512
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#define RGB 0
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#define YCBCR444 1
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#define YCBCR422_16BITS 2
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#define YCBCR422_8BITS 3
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#define XVYCC444 4
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enum hdmi_datamap {
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RGB444_8B = 0x01,
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RGB444_10B = 0x03,
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RGB444_12B = 0x05,
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RGB444_16B = 0x07,
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YCbCr444_8B = 0x09,
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YCbCr444_10B = 0x0B,
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YCbCr444_12B = 0x0D,
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YCbCr444_16B = 0x0F,
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YCbCr422_8B = 0x16,
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YCbCr422_10B = 0x14,
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YCbCr422_12B = 0x12,
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};
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enum imx_hdmi_devtype {
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IMX6Q_HDMI,
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IMX6DL_HDMI,
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};
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static const u16 csc_coeff_default[3][4] = {
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{ 0x2000, 0x0000, 0x0000, 0x0000 },
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{ 0x0000, 0x2000, 0x0000, 0x0000 },
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{ 0x0000, 0x0000, 0x2000, 0x0000 }
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};
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static const u16 csc_coeff_rgb_out_eitu601[3][4] = {
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{ 0x2000, 0x6926, 0x74fd, 0x010e },
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{ 0x2000, 0x2cdd, 0x0000, 0x7e9a },
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{ 0x2000, 0x0000, 0x38b4, 0x7e3b }
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};
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static const u16 csc_coeff_rgb_out_eitu709[3][4] = {
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{ 0x2000, 0x7106, 0x7a02, 0x00a7 },
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{ 0x2000, 0x3264, 0x0000, 0x7e6d },
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{ 0x2000, 0x0000, 0x3b61, 0x7e25 }
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};
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static const u16 csc_coeff_rgb_in_eitu601[3][4] = {
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{ 0x2591, 0x1322, 0x074b, 0x0000 },
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{ 0x6535, 0x2000, 0x7acc, 0x0200 },
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{ 0x6acd, 0x7534, 0x2000, 0x0200 }
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};
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static const u16 csc_coeff_rgb_in_eitu709[3][4] = {
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{ 0x2dc5, 0x0d9b, 0x049e, 0x0000 },
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{ 0x62f0, 0x2000, 0x7d11, 0x0200 },
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{ 0x6756, 0x78ab, 0x2000, 0x0200 }
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};
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struct hdmi_vmode {
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bool mdvi;
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bool mhsyncpolarity;
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bool mvsyncpolarity;
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bool minterlaced;
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bool mdataenablepolarity;
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unsigned int mpixelclock;
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unsigned int mpixelrepetitioninput;
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unsigned int mpixelrepetitionoutput;
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};
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struct hdmi_data_info {
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unsigned int enc_in_format;
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unsigned int enc_out_format;
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unsigned int enc_color_depth;
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unsigned int colorimetry;
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unsigned int pix_repet_factor;
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unsigned int hdcp_enable;
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struct hdmi_vmode video_mode;
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};
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struct imx_hdmi {
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struct drm_connector connector;
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struct drm_encoder encoder;
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enum imx_hdmi_devtype dev_type;
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struct device *dev;
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struct clk *isfr_clk;
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struct clk *iahb_clk;
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struct hdmi_data_info hdmi_data;
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int vic;
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u8 edid[HDMI_EDID_LEN];
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bool cable_plugin;
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bool phy_enabled;
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struct drm_display_mode previous_mode;
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struct regmap *regmap;
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struct i2c_adapter *ddc;
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void __iomem *regs;
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unsigned int sample_rate;
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int ratio;
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};
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static void imx_hdmi_set_ipu_di_mux(struct imx_hdmi *hdmi, int ipu_di)
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{
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regmap_update_bits(hdmi->regmap, IOMUXC_GPR3,
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IMX6Q_GPR3_HDMI_MUX_CTL_MASK,
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ipu_di << IMX6Q_GPR3_HDMI_MUX_CTL_SHIFT);
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}
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static inline void hdmi_writeb(struct imx_hdmi *hdmi, u8 val, int offset)
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{
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writeb(val, hdmi->regs + offset);
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}
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static inline u8 hdmi_readb(struct imx_hdmi *hdmi, int offset)
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{
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return readb(hdmi->regs + offset);
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}
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static void hdmi_modb(struct imx_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
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{
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u8 val = hdmi_readb(hdmi, reg) & ~mask;
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val |= data & mask;
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hdmi_writeb(hdmi, val, reg);
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}
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static void hdmi_mask_writeb(struct imx_hdmi *hdmi, u8 data, unsigned int reg,
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u8 shift, u8 mask)
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{
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hdmi_modb(hdmi, data << shift, mask, reg);
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}
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static void hdmi_set_clock_regenerator_n(struct imx_hdmi *hdmi,
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unsigned int value)
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{
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hdmi_writeb(hdmi, value & 0xff, HDMI_AUD_N1);
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hdmi_writeb(hdmi, (value >> 8) & 0xff, HDMI_AUD_N2);
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hdmi_writeb(hdmi, (value >> 16) & 0x0f, HDMI_AUD_N3);
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/* nshift factor = 0 */
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hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3);
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}
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static void hdmi_regenerate_cts(struct imx_hdmi *hdmi, unsigned int cts)
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{
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/* Must be set/cleared first */
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hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1);
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hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2);
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hdmi_writeb(hdmi, ((cts >> 16) & HDMI_AUD_CTS3_AUDCTS19_16_MASK) |
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HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
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}
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static unsigned int hdmi_compute_n(unsigned int freq, unsigned long pixel_clk,
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unsigned int ratio)
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{
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unsigned int n = (128 * freq) / 1000;
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switch (freq) {
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case 32000:
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if (pixel_clk == 25170000)
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n = (ratio == 150) ? 9152 : 4576;
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else if (pixel_clk == 27020000)
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n = (ratio == 150) ? 8192 : 4096;
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else if (pixel_clk == 74170000 || pixel_clk == 148350000)
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n = 11648;
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else
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n = 4096;
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break;
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case 44100:
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if (pixel_clk == 25170000)
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n = 7007;
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else if (pixel_clk == 74170000)
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n = 17836;
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else if (pixel_clk == 148350000)
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n = (ratio == 150) ? 17836 : 8918;
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else
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n = 6272;
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break;
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case 48000:
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if (pixel_clk == 25170000)
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n = (ratio == 150) ? 9152 : 6864;
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else if (pixel_clk == 27020000)
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n = (ratio == 150) ? 8192 : 6144;
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else if (pixel_clk == 74170000)
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n = 11648;
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else if (pixel_clk == 148350000)
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n = (ratio == 150) ? 11648 : 5824;
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else
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n = 6144;
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break;
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case 88200:
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n = hdmi_compute_n(44100, pixel_clk, ratio) * 2;
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break;
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case 96000:
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n = hdmi_compute_n(48000, pixel_clk, ratio) * 2;
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break;
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case 176400:
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n = hdmi_compute_n(44100, pixel_clk, ratio) * 4;
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break;
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case 192000:
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n = hdmi_compute_n(48000, pixel_clk, ratio) * 4;
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break;
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default:
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break;
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}
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return n;
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}
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static unsigned int hdmi_compute_cts(unsigned int freq, unsigned long pixel_clk,
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unsigned int ratio)
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{
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unsigned int cts = 0;
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pr_debug("%s: freq: %d pixel_clk: %ld ratio: %d\n", __func__, freq,
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pixel_clk, ratio);
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switch (freq) {
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case 32000:
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if (pixel_clk == 297000000) {
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cts = 222750;
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break;
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}
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case 48000:
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case 96000:
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case 192000:
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switch (pixel_clk) {
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case 25200000:
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case 27000000:
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case 54000000:
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case 74250000:
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case 148500000:
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cts = pixel_clk / 1000;
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break;
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case 297000000:
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cts = 247500;
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break;
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/*
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* All other TMDS clocks are not supported by
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* DWC_hdmi_tx. The TMDS clocks divided or
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* multiplied by 1,001 coefficients are not
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* supported.
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*/
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default:
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break;
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}
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break;
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case 44100:
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case 88200:
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case 176400:
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switch (pixel_clk) {
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case 25200000:
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cts = 28000;
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break;
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case 27000000:
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cts = 30000;
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break;
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case 54000000:
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cts = 60000;
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break;
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case 74250000:
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cts = 82500;
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break;
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case 148500000:
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cts = 165000;
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break;
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case 297000000:
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cts = 247500;
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break;
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default:
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break;
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}
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break;
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default:
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break;
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}
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if (ratio == 100)
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return cts;
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return (cts * ratio) / 100;
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}
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static void hdmi_set_clk_regenerator(struct imx_hdmi *hdmi,
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unsigned long pixel_clk)
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{
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unsigned int clk_n, clk_cts;
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clk_n = hdmi_compute_n(hdmi->sample_rate, pixel_clk,
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hdmi->ratio);
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clk_cts = hdmi_compute_cts(hdmi->sample_rate, pixel_clk,
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hdmi->ratio);
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if (!clk_cts) {
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dev_dbg(hdmi->dev, "%s: pixel clock not supported: %lu\n",
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__func__, pixel_clk);
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return;
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}
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dev_dbg(hdmi->dev, "%s: samplerate=%d ratio=%d pixelclk=%lu N=%d cts=%d\n",
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__func__, hdmi->sample_rate, hdmi->ratio,
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pixel_clk, clk_n, clk_cts);
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hdmi_set_clock_regenerator_n(hdmi, clk_n);
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hdmi_regenerate_cts(hdmi, clk_cts);
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}
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static void hdmi_init_clk_regenerator(struct imx_hdmi *hdmi)
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{
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hdmi_set_clk_regenerator(hdmi, 74250000);
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}
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static void hdmi_clk_regenerator_update_pixel_clock(struct imx_hdmi *hdmi)
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{
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hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mpixelclock);
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}
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/*
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* this submodule is responsible for the video data synchronization.
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* for example, for RGB 4:4:4 input, the data map is defined as
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* pin{47~40} <==> R[7:0]
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* pin{31~24} <==> G[7:0]
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* pin{15~8} <==> B[7:0]
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*/
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static void hdmi_video_sample(struct imx_hdmi *hdmi)
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{
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int color_format = 0;
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u8 val;
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if (hdmi->hdmi_data.enc_in_format == RGB) {
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if (hdmi->hdmi_data.enc_color_depth == 8)
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color_format = 0x01;
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else if (hdmi->hdmi_data.enc_color_depth == 10)
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color_format = 0x03;
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else if (hdmi->hdmi_data.enc_color_depth == 12)
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color_format = 0x05;
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else if (hdmi->hdmi_data.enc_color_depth == 16)
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color_format = 0x07;
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else
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return;
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} else if (hdmi->hdmi_data.enc_in_format == YCBCR444) {
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if (hdmi->hdmi_data.enc_color_depth == 8)
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color_format = 0x09;
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else if (hdmi->hdmi_data.enc_color_depth == 10)
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color_format = 0x0B;
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else if (hdmi->hdmi_data.enc_color_depth == 12)
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color_format = 0x0D;
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else if (hdmi->hdmi_data.enc_color_depth == 16)
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color_format = 0x0F;
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else
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return;
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} else if (hdmi->hdmi_data.enc_in_format == YCBCR422_8BITS) {
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if (hdmi->hdmi_data.enc_color_depth == 8)
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color_format = 0x16;
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else if (hdmi->hdmi_data.enc_color_depth == 10)
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color_format = 0x14;
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else if (hdmi->hdmi_data.enc_color_depth == 12)
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color_format = 0x12;
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else
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return;
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}
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val = HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE |
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((color_format << HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET) &
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HDMI_TX_INVID0_VIDEO_MAPPING_MASK);
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hdmi_writeb(hdmi, val, HDMI_TX_INVID0);
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/* Enable TX stuffing: When DE is inactive, fix the output data to 0 */
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val = HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE |
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HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE |
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HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE;
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hdmi_writeb(hdmi, val, HDMI_TX_INSTUFFING);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA0);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA1);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA0);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA1);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA0);
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hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA1);
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}
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static int is_color_space_conversion(struct imx_hdmi *hdmi)
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{
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return hdmi->hdmi_data.enc_in_format != hdmi->hdmi_data.enc_out_format;
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}
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static int is_color_space_decimation(struct imx_hdmi *hdmi)
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{
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if (hdmi->hdmi_data.enc_out_format != YCBCR422_8BITS)
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return 0;
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if (hdmi->hdmi_data.enc_in_format == RGB ||
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hdmi->hdmi_data.enc_in_format == YCBCR444)
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return 1;
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return 0;
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}
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static int is_color_space_interpolation(struct imx_hdmi *hdmi)
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{
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if (hdmi->hdmi_data.enc_in_format != YCBCR422_8BITS)
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return 0;
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if (hdmi->hdmi_data.enc_out_format == RGB ||
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hdmi->hdmi_data.enc_out_format == YCBCR444)
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return 1;
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return 0;
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}
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static void imx_hdmi_update_csc_coeffs(struct imx_hdmi *hdmi)
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{
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const u16 (*csc_coeff)[3][4] = &csc_coeff_default;
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unsigned i;
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u32 csc_scale = 1;
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if (is_color_space_conversion(hdmi)) {
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if (hdmi->hdmi_data.enc_out_format == RGB) {
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if (hdmi->hdmi_data.colorimetry ==
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HDMI_COLORIMETRY_ITU_601)
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csc_coeff = &csc_coeff_rgb_out_eitu601;
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else
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csc_coeff = &csc_coeff_rgb_out_eitu709;
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} else if (hdmi->hdmi_data.enc_in_format == RGB) {
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if (hdmi->hdmi_data.colorimetry ==
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HDMI_COLORIMETRY_ITU_601)
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csc_coeff = &csc_coeff_rgb_in_eitu601;
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else
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csc_coeff = &csc_coeff_rgb_in_eitu709;
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csc_scale = 0;
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}
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}
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/* The CSC registers are sequential, alternating MSB then LSB */
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for (i = 0; i < ARRAY_SIZE(csc_coeff_default[0]); i++) {
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u16 coeff_a = (*csc_coeff)[0][i];
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u16 coeff_b = (*csc_coeff)[1][i];
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u16 coeff_c = (*csc_coeff)[2][i];
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hdmi_writeb(hdmi, coeff_a & 0xff,
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HDMI_CSC_COEF_A1_LSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_a >> 8, HDMI_CSC_COEF_A1_MSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_b & 0xff, HDMI_CSC_COEF_B1_LSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_b >> 8, HDMI_CSC_COEF_B1_MSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_c & 0xff,
|
|
HDMI_CSC_COEF_C1_LSB + i * 2);
|
|
hdmi_writeb(hdmi, coeff_c >> 8, HDMI_CSC_COEF_C1_MSB + i * 2);
|
|
}
|
|
|
|
hdmi_modb(hdmi, csc_scale, HDMI_CSC_SCALE_CSCSCALE_MASK,
|
|
HDMI_CSC_SCALE);
|
|
}
|
|
|
|
static void hdmi_video_csc(struct imx_hdmi *hdmi)
|
|
{
|
|
int color_depth = 0;
|
|
int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE;
|
|
int decimation = 0;
|
|
|
|
/* YCC422 interpolation to 444 mode */
|
|
if (is_color_space_interpolation(hdmi))
|
|
interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1;
|
|
else if (is_color_space_decimation(hdmi))
|
|
decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3;
|
|
|
|
if (hdmi->hdmi_data.enc_color_depth == 8)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP;
|
|
else if (hdmi->hdmi_data.enc_color_depth == 10)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP;
|
|
else if (hdmi->hdmi_data.enc_color_depth == 12)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP;
|
|
else if (hdmi->hdmi_data.enc_color_depth == 16)
|
|
color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP;
|
|
else
|
|
return;
|
|
|
|
/* Configure the CSC registers */
|
|
hdmi_writeb(hdmi, interpolation | decimation, HDMI_CSC_CFG);
|
|
hdmi_modb(hdmi, color_depth, HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK,
|
|
HDMI_CSC_SCALE);
|
|
|
|
imx_hdmi_update_csc_coeffs(hdmi);
|
|
}
|
|
|
|
/*
|
|
* HDMI video packetizer is used to packetize the data.
|
|
* for example, if input is YCC422 mode or repeater is used,
|
|
* data should be repacked this module can be bypassed.
|
|
*/
|
|
static void hdmi_video_packetize(struct imx_hdmi *hdmi)
|
|
{
|
|
unsigned int color_depth = 0;
|
|
unsigned int remap_size = HDMI_VP_REMAP_YCC422_16bit;
|
|
unsigned int output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_PP;
|
|
struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data;
|
|
u8 val, vp_conf;
|
|
|
|
if (hdmi_data->enc_out_format == RGB
|
|
|| hdmi_data->enc_out_format == YCBCR444) {
|
|
if (!hdmi_data->enc_color_depth)
|
|
output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
|
|
else if (hdmi_data->enc_color_depth == 8) {
|
|
color_depth = 4;
|
|
output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
|
|
} else if (hdmi_data->enc_color_depth == 10)
|
|
color_depth = 5;
|
|
else if (hdmi_data->enc_color_depth == 12)
|
|
color_depth = 6;
|
|
else if (hdmi_data->enc_color_depth == 16)
|
|
color_depth = 7;
|
|
else
|
|
return;
|
|
} else if (hdmi_data->enc_out_format == YCBCR422_8BITS) {
|
|
if (!hdmi_data->enc_color_depth ||
|
|
hdmi_data->enc_color_depth == 8)
|
|
remap_size = HDMI_VP_REMAP_YCC422_16bit;
|
|
else if (hdmi_data->enc_color_depth == 10)
|
|
remap_size = HDMI_VP_REMAP_YCC422_20bit;
|
|
else if (hdmi_data->enc_color_depth == 12)
|
|
remap_size = HDMI_VP_REMAP_YCC422_24bit;
|
|
else
|
|
return;
|
|
output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422;
|
|
} else
|
|
return;
|
|
|
|
/* set the packetizer registers */
|
|
val = ((color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) &
|
|
HDMI_VP_PR_CD_COLOR_DEPTH_MASK) |
|
|
((hdmi_data->pix_repet_factor <<
|
|
HDMI_VP_PR_CD_DESIRED_PR_FACTOR_OFFSET) &
|
|
HDMI_VP_PR_CD_DESIRED_PR_FACTOR_MASK);
|
|
hdmi_writeb(hdmi, val, HDMI_VP_PR_CD);
|
|
|
|
hdmi_modb(hdmi, HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE,
|
|
HDMI_VP_STUFF_PR_STUFFING_MASK, HDMI_VP_STUFF);
|
|
|
|
/* Data from pixel repeater block */
|
|
if (hdmi_data->pix_repet_factor > 1) {
|
|
vp_conf = HDMI_VP_CONF_PR_EN_ENABLE |
|
|
HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER;
|
|
} else { /* data from packetizer block */
|
|
vp_conf = HDMI_VP_CONF_PR_EN_DISABLE |
|
|
HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER;
|
|
}
|
|
|
|
hdmi_modb(hdmi, vp_conf,
|
|
HDMI_VP_CONF_PR_EN_MASK |
|
|
HDMI_VP_CONF_BYPASS_SELECT_MASK, HDMI_VP_CONF);
|
|
|
|
hdmi_modb(hdmi, 1 << HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET,
|
|
HDMI_VP_STUFF_IDEFAULT_PHASE_MASK, HDMI_VP_STUFF);
|
|
|
|
hdmi_writeb(hdmi, remap_size, HDMI_VP_REMAP);
|
|
|
|
if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_PP) {
|
|
vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
|
|
HDMI_VP_CONF_PP_EN_ENABLE |
|
|
HDMI_VP_CONF_YCC422_EN_DISABLE;
|
|
} else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422) {
|
|
vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
|
|
HDMI_VP_CONF_PP_EN_DISABLE |
|
|
HDMI_VP_CONF_YCC422_EN_ENABLE;
|
|
} else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS) {
|
|
vp_conf = HDMI_VP_CONF_BYPASS_EN_ENABLE |
|
|
HDMI_VP_CONF_PP_EN_DISABLE |
|
|
HDMI_VP_CONF_YCC422_EN_DISABLE;
|
|
} else {
|
|
return;
|
|
}
|
|
|
|
hdmi_modb(hdmi, vp_conf,
|
|
HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK |
|
|
HDMI_VP_CONF_YCC422_EN_MASK, HDMI_VP_CONF);
|
|
|
|
hdmi_modb(hdmi, HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE |
|
|
HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE,
|
|
HDMI_VP_STUFF_PP_STUFFING_MASK |
|
|
HDMI_VP_STUFF_YCC422_STUFFING_MASK, HDMI_VP_STUFF);
|
|
|
|
hdmi_modb(hdmi, output_select, HDMI_VP_CONF_OUTPUT_SELECTOR_MASK,
|
|
HDMI_VP_CONF);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_clear(struct imx_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET,
|
|
HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_enable(struct imx_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTEN_OFFSET,
|
|
HDMI_PHY_TST0_TSTEN_MASK, HDMI_PHY_TST0);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_clock(struct imx_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLK_OFFSET,
|
|
HDMI_PHY_TST0_TSTCLK_MASK, HDMI_PHY_TST0);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_din(struct imx_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_writeb(hdmi, bit, HDMI_PHY_TST1);
|
|
}
|
|
|
|
static inline void hdmi_phy_test_dout(struct imx_hdmi *hdmi,
|
|
unsigned char bit)
|
|
{
|
|
hdmi_writeb(hdmi, bit, HDMI_PHY_TST2);
|
|
}
|
|
|
|
static bool hdmi_phy_wait_i2c_done(struct imx_hdmi *hdmi, int msec)
|
|
{
|
|
while ((hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) {
|
|
if (msec-- == 0)
|
|
return false;
|
|
udelay(1000);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static void __hdmi_phy_i2c_write(struct imx_hdmi *hdmi, unsigned short data,
|
|
unsigned char addr)
|
|
{
|
|
hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0);
|
|
hdmi_writeb(hdmi, addr, HDMI_PHY_I2CM_ADDRESS_ADDR);
|
|
hdmi_writeb(hdmi, (unsigned char)(data >> 8),
|
|
HDMI_PHY_I2CM_DATAO_1_ADDR);
|
|
hdmi_writeb(hdmi, (unsigned char)(data >> 0),
|
|
HDMI_PHY_I2CM_DATAO_0_ADDR);
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE,
|
|
HDMI_PHY_I2CM_OPERATION_ADDR);
|
|
hdmi_phy_wait_i2c_done(hdmi, 1000);
|
|
}
|
|
|
|
static int hdmi_phy_i2c_write(struct imx_hdmi *hdmi, unsigned short data,
|
|
unsigned char addr)
|
|
{
|
|
__hdmi_phy_i2c_write(hdmi, data, addr);
|
|
return 0;
|
|
}
|
|
|
|
static void imx_hdmi_phy_enable_power(struct imx_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_PDZ_OFFSET,
|
|
HDMI_PHY_CONF0_PDZ_MASK);
|
|
}
|
|
|
|
static void imx_hdmi_phy_enable_tmds(struct imx_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_ENTMDS_OFFSET,
|
|
HDMI_PHY_CONF0_ENTMDS_MASK);
|
|
}
|
|
|
|
static void imx_hdmi_phy_gen2_pddq(struct imx_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET,
|
|
HDMI_PHY_CONF0_GEN2_PDDQ_MASK);
|
|
}
|
|
|
|
static void imx_hdmi_phy_gen2_txpwron(struct imx_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET,
|
|
HDMI_PHY_CONF0_GEN2_TXPWRON_MASK);
|
|
}
|
|
|
|
static void imx_hdmi_phy_sel_data_en_pol(struct imx_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_SELDATAENPOL_OFFSET,
|
|
HDMI_PHY_CONF0_SELDATAENPOL_MASK);
|
|
}
|
|
|
|
static void imx_hdmi_phy_sel_interface_control(struct imx_hdmi *hdmi, u8 enable)
|
|
{
|
|
hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
|
|
HDMI_PHY_CONF0_SELDIPIF_OFFSET,
|
|
HDMI_PHY_CONF0_SELDIPIF_MASK);
|
|
}
|
|
|
|
enum {
|
|
RES_8,
|
|
RES_10,
|
|
RES_12,
|
|
RES_MAX,
|
|
};
|
|
|
|
struct mpll_config {
|
|
unsigned long mpixelclock;
|
|
struct {
|
|
u16 cpce;
|
|
u16 gmp;
|
|
} res[RES_MAX];
|
|
};
|
|
|
|
static const struct mpll_config mpll_config[] = {
|
|
{
|
|
45250000, {
|
|
{ 0x01e0, 0x0000 },
|
|
{ 0x21e1, 0x0000 },
|
|
{ 0x41e2, 0x0000 }
|
|
},
|
|
}, {
|
|
92500000, {
|
|
{ 0x0140, 0x0005 },
|
|
{ 0x2141, 0x0005 },
|
|
{ 0x4142, 0x0005 },
|
|
},
|
|
}, {
|
|
148500000, {
|
|
{ 0x00a0, 0x000a },
|
|
{ 0x20a1, 0x000a },
|
|
{ 0x40a2, 0x000a },
|
|
},
|
|
}, {
|
|
~0UL, {
|
|
{ 0x00a0, 0x000a },
|
|
{ 0x2001, 0x000f },
|
|
{ 0x4002, 0x000f },
|
|
},
|
|
}
|
|
};
|
|
|
|
struct curr_ctrl {
|
|
unsigned long mpixelclock;
|
|
u16 curr[RES_MAX];
|
|
};
|
|
|
|
static const struct curr_ctrl curr_ctrl[] = {
|
|
/* pixelclk bpp8 bpp10 bpp12 */
|
|
{
|
|
54000000, { 0x091c, 0x091c, 0x06dc },
|
|
}, {
|
|
58400000, { 0x091c, 0x06dc, 0x06dc },
|
|
}, {
|
|
72000000, { 0x06dc, 0x06dc, 0x091c },
|
|
}, {
|
|
74250000, { 0x06dc, 0x0b5c, 0x091c },
|
|
}, {
|
|
118800000, { 0x091c, 0x091c, 0x06dc },
|
|
}, {
|
|
216000000, { 0x06dc, 0x0b5c, 0x091c },
|
|
}
|
|
};
|
|
|
|
static int hdmi_phy_configure(struct imx_hdmi *hdmi, unsigned char prep,
|
|
unsigned char res, int cscon)
|
|
{
|
|
unsigned res_idx, i;
|
|
u8 val, msec;
|
|
|
|
if (prep)
|
|
return -EINVAL;
|
|
|
|
switch (res) {
|
|
case 0: /* color resolution 0 is 8 bit colour depth */
|
|
case 8:
|
|
res_idx = RES_8;
|
|
break;
|
|
case 10:
|
|
res_idx = RES_10;
|
|
break;
|
|
case 12:
|
|
res_idx = RES_12;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Enable csc path */
|
|
if (cscon)
|
|
val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH;
|
|
else
|
|
val = HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS;
|
|
|
|
hdmi_writeb(hdmi, val, HDMI_MC_FLOWCTRL);
|
|
|
|
/* gen2 tx power off */
|
|
imx_hdmi_phy_gen2_txpwron(hdmi, 0);
|
|
|
|
/* gen2 pddq */
|
|
imx_hdmi_phy_gen2_pddq(hdmi, 1);
|
|
|
|
/* PHY reset */
|
|
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_DEASSERT, HDMI_MC_PHYRSTZ);
|
|
hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_ASSERT, HDMI_MC_PHYRSTZ);
|
|
|
|
hdmi_writeb(hdmi, HDMI_MC_HEACPHY_RST_ASSERT, HDMI_MC_HEACPHY_RST);
|
|
|
|
hdmi_phy_test_clear(hdmi, 1);
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2,
|
|
HDMI_PHY_I2CM_SLAVE_ADDR);
|
|
hdmi_phy_test_clear(hdmi, 0);
|
|
|
|
/* PLL/MPLL Cfg - always match on final entry */
|
|
for (i = 0; i < ARRAY_SIZE(mpll_config) - 1; i++)
|
|
if (hdmi->hdmi_data.video_mode.mpixelclock <=
|
|
mpll_config[i].mpixelclock)
|
|
break;
|
|
|
|
hdmi_phy_i2c_write(hdmi, mpll_config[i].res[res_idx].cpce, 0x06);
|
|
hdmi_phy_i2c_write(hdmi, mpll_config[i].res[res_idx].gmp, 0x15);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(curr_ctrl); i++)
|
|
if (hdmi->hdmi_data.video_mode.mpixelclock <=
|
|
curr_ctrl[i].mpixelclock)
|
|
break;
|
|
|
|
if (i >= ARRAY_SIZE(curr_ctrl)) {
|
|
dev_err(hdmi->dev,
|
|
"Pixel clock %d - unsupported by HDMI\n",
|
|
hdmi->hdmi_data.video_mode.mpixelclock);
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* CURRCTRL */
|
|
hdmi_phy_i2c_write(hdmi, curr_ctrl[i].curr[res_idx], 0x10);
|
|
|
|
hdmi_phy_i2c_write(hdmi, 0x0000, 0x13); /* PLLPHBYCTRL */
|
|
hdmi_phy_i2c_write(hdmi, 0x0006, 0x17);
|
|
/* RESISTANCE TERM 133Ohm Cfg */
|
|
hdmi_phy_i2c_write(hdmi, 0x0005, 0x19); /* TXTERM */
|
|
/* PREEMP Cgf 0.00 */
|
|
hdmi_phy_i2c_write(hdmi, 0x800d, 0x09); /* CKSYMTXCTRL */
|
|
/* TX/CK LVL 10 */
|
|
hdmi_phy_i2c_write(hdmi, 0x01ad, 0x0E); /* VLEVCTRL */
|
|
/* REMOVE CLK TERM */
|
|
hdmi_phy_i2c_write(hdmi, 0x8000, 0x05); /* CKCALCTRL */
|
|
|
|
imx_hdmi_phy_enable_power(hdmi, 1);
|
|
|
|
/* toggle TMDS enable */
|
|
imx_hdmi_phy_enable_tmds(hdmi, 0);
|
|
imx_hdmi_phy_enable_tmds(hdmi, 1);
|
|
|
|
/* gen2 tx power on */
|
|
imx_hdmi_phy_gen2_txpwron(hdmi, 1);
|
|
imx_hdmi_phy_gen2_pddq(hdmi, 0);
|
|
|
|
/*Wait for PHY PLL lock */
|
|
msec = 5;
|
|
do {
|
|
val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK;
|
|
if (!val)
|
|
break;
|
|
|
|
if (msec == 0) {
|
|
dev_err(hdmi->dev, "PHY PLL not locked\n");
|
|
return -ETIMEDOUT;
|
|
}
|
|
|
|
udelay(1000);
|
|
msec--;
|
|
} while (1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int imx_hdmi_phy_init(struct imx_hdmi *hdmi)
|
|
{
|
|
int i, ret;
|
|
bool cscon = false;
|
|
|
|
/*check csc whether needed activated in HDMI mode */
|
|
cscon = (is_color_space_conversion(hdmi) &&
|
|
!hdmi->hdmi_data.video_mode.mdvi);
|
|
|
|
/* HDMI Phy spec says to do the phy initialization sequence twice */
|
|
for (i = 0; i < 2; i++) {
|
|
imx_hdmi_phy_sel_data_en_pol(hdmi, 1);
|
|
imx_hdmi_phy_sel_interface_control(hdmi, 0);
|
|
imx_hdmi_phy_enable_tmds(hdmi, 0);
|
|
imx_hdmi_phy_enable_power(hdmi, 0);
|
|
|
|
/* Enable CSC */
|
|
ret = hdmi_phy_configure(hdmi, 0, 8, cscon);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
hdmi->phy_enabled = true;
|
|
return 0;
|
|
}
|
|
|
|
static void hdmi_tx_hdcp_config(struct imx_hdmi *hdmi)
|
|
{
|
|
u8 de;
|
|
|
|
if (hdmi->hdmi_data.video_mode.mdataenablepolarity)
|
|
de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH;
|
|
else
|
|
de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_LOW;
|
|
|
|
/* disable rx detect */
|
|
hdmi_modb(hdmi, HDMI_A_HDCPCFG0_RXDETECT_DISABLE,
|
|
HDMI_A_HDCPCFG0_RXDETECT_MASK, HDMI_A_HDCPCFG0);
|
|
|
|
hdmi_modb(hdmi, de, HDMI_A_VIDPOLCFG_DATAENPOL_MASK, HDMI_A_VIDPOLCFG);
|
|
|
|
hdmi_modb(hdmi, HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_DISABLE,
|
|
HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK, HDMI_A_HDCPCFG1);
|
|
}
|
|
|
|
static void hdmi_config_AVI(struct imx_hdmi *hdmi)
|
|
{
|
|
u8 val, pix_fmt, under_scan;
|
|
u8 act_ratio, coded_ratio, colorimetry, ext_colorimetry;
|
|
bool aspect_16_9;
|
|
|
|
aspect_16_9 = false; /* FIXME */
|
|
|
|
/* AVI Data Byte 1 */
|
|
if (hdmi->hdmi_data.enc_out_format == YCBCR444)
|
|
pix_fmt = HDMI_FC_AVICONF0_PIX_FMT_YCBCR444;
|
|
else if (hdmi->hdmi_data.enc_out_format == YCBCR422_8BITS)
|
|
pix_fmt = HDMI_FC_AVICONF0_PIX_FMT_YCBCR422;
|
|
else
|
|
pix_fmt = HDMI_FC_AVICONF0_PIX_FMT_RGB;
|
|
|
|
under_scan = HDMI_FC_AVICONF0_SCAN_INFO_NODATA;
|
|
|
|
/*
|
|
* Active format identification data is present in the AVI InfoFrame.
|
|
* Under scan info, no bar data
|
|
*/
|
|
val = pix_fmt | under_scan |
|
|
HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT |
|
|
HDMI_FC_AVICONF0_BAR_DATA_NO_DATA;
|
|
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF0);
|
|
|
|
/* AVI Data Byte 2 -Set the Aspect Ratio */
|
|
if (aspect_16_9) {
|
|
act_ratio = HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_16_9;
|
|
coded_ratio = HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_16_9;
|
|
} else {
|
|
act_ratio = HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_4_3;
|
|
coded_ratio = HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_4_3;
|
|
}
|
|
|
|
/* Set up colorimetry */
|
|
if (hdmi->hdmi_data.enc_out_format == XVYCC444) {
|
|
colorimetry = HDMI_FC_AVICONF1_COLORIMETRY_EXTENDED_INFO;
|
|
if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601)
|
|
ext_colorimetry =
|
|
HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC601;
|
|
else /*hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_709*/
|
|
ext_colorimetry =
|
|
HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC709;
|
|
} else if (hdmi->hdmi_data.enc_out_format != RGB) {
|
|
if (hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_601)
|
|
colorimetry = HDMI_FC_AVICONF1_COLORIMETRY_SMPTE;
|
|
else /*hdmi->hdmi_data.colorimetry == HDMI_COLORIMETRY_ITU_709*/
|
|
colorimetry = HDMI_FC_AVICONF1_COLORIMETRY_ITUR;
|
|
ext_colorimetry = HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC601;
|
|
} else { /* Carries no data */
|
|
colorimetry = HDMI_FC_AVICONF1_COLORIMETRY_NO_DATA;
|
|
ext_colorimetry = HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC601;
|
|
}
|
|
|
|
val = colorimetry | coded_ratio | act_ratio;
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF1);
|
|
|
|
/* AVI Data Byte 3 */
|
|
val = HDMI_FC_AVICONF2_IT_CONTENT_NO_DATA | ext_colorimetry |
|
|
HDMI_FC_AVICONF2_RGB_QUANT_DEFAULT |
|
|
HDMI_FC_AVICONF2_SCALING_NONE;
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF2);
|
|
|
|
/* AVI Data Byte 4 */
|
|
hdmi_writeb(hdmi, hdmi->vic, HDMI_FC_AVIVID);
|
|
|
|
/* AVI Data Byte 5- set up input and output pixel repetition */
|
|
val = (((hdmi->hdmi_data.video_mode.mpixelrepetitioninput + 1) <<
|
|
HDMI_FC_PRCONF_INCOMING_PR_FACTOR_OFFSET) &
|
|
HDMI_FC_PRCONF_INCOMING_PR_FACTOR_MASK) |
|
|
((hdmi->hdmi_data.video_mode.mpixelrepetitionoutput <<
|
|
HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_OFFSET) &
|
|
HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_MASK);
|
|
hdmi_writeb(hdmi, val, HDMI_FC_PRCONF);
|
|
|
|
/* IT Content and quantization range = don't care */
|
|
val = HDMI_FC_AVICONF3_IT_CONTENT_TYPE_GRAPHICS |
|
|
HDMI_FC_AVICONF3_QUANT_RANGE_LIMITED;
|
|
hdmi_writeb(hdmi, val, HDMI_FC_AVICONF3);
|
|
|
|
/* AVI Data Bytes 6-13 */
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVIETB0);
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVIETB1);
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVISBB0);
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVISBB1);
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVIELB0);
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVIELB1);
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVISRB0);
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_AVISRB1);
|
|
}
|
|
|
|
static void hdmi_av_composer(struct imx_hdmi *hdmi,
|
|
const struct drm_display_mode *mode)
|
|
{
|
|
u8 inv_val;
|
|
struct hdmi_vmode *vmode = &hdmi->hdmi_data.video_mode;
|
|
int hblank, vblank, h_de_hs, v_de_vs, hsync_len, vsync_len;
|
|
|
|
vmode->mhsyncpolarity = !!(mode->flags & DRM_MODE_FLAG_PHSYNC);
|
|
vmode->mvsyncpolarity = !!(mode->flags & DRM_MODE_FLAG_PVSYNC);
|
|
vmode->minterlaced = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
|
|
vmode->mpixelclock = mode->clock * 1000;
|
|
|
|
dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock);
|
|
|
|
/* Set up HDMI_FC_INVIDCONF */
|
|
inv_val = (hdmi->hdmi_data.hdcp_enable ?
|
|
HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE :
|
|
HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE);
|
|
|
|
inv_val |= (vmode->mvsyncpolarity ?
|
|
HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW);
|
|
|
|
inv_val |= (vmode->mhsyncpolarity ?
|
|
HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW);
|
|
|
|
inv_val |= (vmode->mdataenablepolarity ?
|
|
HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW);
|
|
|
|
if (hdmi->vic == 39)
|
|
inv_val |= HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH;
|
|
else
|
|
inv_val |= (vmode->minterlaced ?
|
|
HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH :
|
|
HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW);
|
|
|
|
inv_val |= (vmode->minterlaced ?
|
|
HDMI_FC_INVIDCONF_IN_I_P_INTERLACED :
|
|
HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE);
|
|
|
|
inv_val |= (vmode->mdvi ?
|
|
HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE :
|
|
HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE);
|
|
|
|
hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF);
|
|
|
|
/* Set up horizontal active pixel width */
|
|
hdmi_writeb(hdmi, mode->hdisplay >> 8, HDMI_FC_INHACTV1);
|
|
hdmi_writeb(hdmi, mode->hdisplay, HDMI_FC_INHACTV0);
|
|
|
|
/* Set up vertical active lines */
|
|
hdmi_writeb(hdmi, mode->vdisplay >> 8, HDMI_FC_INVACTV1);
|
|
hdmi_writeb(hdmi, mode->vdisplay, HDMI_FC_INVACTV0);
|
|
|
|
/* Set up horizontal blanking pixel region width */
|
|
hblank = mode->htotal - mode->hdisplay;
|
|
hdmi_writeb(hdmi, hblank >> 8, HDMI_FC_INHBLANK1);
|
|
hdmi_writeb(hdmi, hblank, HDMI_FC_INHBLANK0);
|
|
|
|
/* Set up vertical blanking pixel region width */
|
|
vblank = mode->vtotal - mode->vdisplay;
|
|
hdmi_writeb(hdmi, vblank, HDMI_FC_INVBLANK);
|
|
|
|
/* Set up HSYNC active edge delay width (in pixel clks) */
|
|
h_de_hs = mode->hsync_start - mode->hdisplay;
|
|
hdmi_writeb(hdmi, h_de_hs >> 8, HDMI_FC_HSYNCINDELAY1);
|
|
hdmi_writeb(hdmi, h_de_hs, HDMI_FC_HSYNCINDELAY0);
|
|
|
|
/* Set up VSYNC active edge delay (in lines) */
|
|
v_de_vs = mode->vsync_start - mode->vdisplay;
|
|
hdmi_writeb(hdmi, v_de_vs, HDMI_FC_VSYNCINDELAY);
|
|
|
|
/* Set up HSYNC active pulse width (in pixel clks) */
|
|
hsync_len = mode->hsync_end - mode->hsync_start;
|
|
hdmi_writeb(hdmi, hsync_len >> 8, HDMI_FC_HSYNCINWIDTH1);
|
|
hdmi_writeb(hdmi, hsync_len, HDMI_FC_HSYNCINWIDTH0);
|
|
|
|
/* Set up VSYNC active edge delay (in lines) */
|
|
vsync_len = mode->vsync_end - mode->vsync_start;
|
|
hdmi_writeb(hdmi, vsync_len, HDMI_FC_VSYNCINWIDTH);
|
|
}
|
|
|
|
static void imx_hdmi_phy_disable(struct imx_hdmi *hdmi)
|
|
{
|
|
if (!hdmi->phy_enabled)
|
|
return;
|
|
|
|
imx_hdmi_phy_enable_tmds(hdmi, 0);
|
|
imx_hdmi_phy_enable_power(hdmi, 0);
|
|
|
|
hdmi->phy_enabled = false;
|
|
}
|
|
|
|
/* HDMI Initialization Step B.4 */
|
|
static void imx_hdmi_enable_video_path(struct imx_hdmi *hdmi)
|
|
{
|
|
u8 clkdis;
|
|
|
|
/* control period minimum duration */
|
|
hdmi_writeb(hdmi, 12, HDMI_FC_CTRLDUR);
|
|
hdmi_writeb(hdmi, 32, HDMI_FC_EXCTRLDUR);
|
|
hdmi_writeb(hdmi, 1, HDMI_FC_EXCTRLSPAC);
|
|
|
|
/* Set to fill TMDS data channels */
|
|
hdmi_writeb(hdmi, 0x0B, HDMI_FC_CH0PREAM);
|
|
hdmi_writeb(hdmi, 0x16, HDMI_FC_CH1PREAM);
|
|
hdmi_writeb(hdmi, 0x21, HDMI_FC_CH2PREAM);
|
|
|
|
/* Enable pixel clock and tmds data path */
|
|
clkdis = 0x7F;
|
|
clkdis &= ~HDMI_MC_CLKDIS_PIXELCLK_DISABLE;
|
|
hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
|
|
|
|
clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE;
|
|
hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
|
|
|
|
/* Enable csc path */
|
|
if (is_color_space_conversion(hdmi)) {
|
|
clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_DISABLE;
|
|
hdmi_writeb(hdmi, clkdis, HDMI_MC_CLKDIS);
|
|
}
|
|
}
|
|
|
|
static void hdmi_enable_audio_clk(struct imx_hdmi *hdmi)
|
|
{
|
|
hdmi_modb(hdmi, 0, HDMI_MC_CLKDIS_AUDCLK_DISABLE, HDMI_MC_CLKDIS);
|
|
}
|
|
|
|
/* Workaround to clear the overflow condition */
|
|
static void imx_hdmi_clear_overflow(struct imx_hdmi *hdmi)
|
|
{
|
|
int count;
|
|
u8 val;
|
|
|
|
/* TMDS software reset */
|
|
hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, HDMI_MC_SWRSTZ);
|
|
|
|
val = hdmi_readb(hdmi, HDMI_FC_INVIDCONF);
|
|
if (hdmi->dev_type == IMX6DL_HDMI) {
|
|
hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
|
|
return;
|
|
}
|
|
|
|
for (count = 0; count < 4; count++)
|
|
hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
|
|
}
|
|
|
|
static void hdmi_enable_overflow_interrupts(struct imx_hdmi *hdmi)
|
|
{
|
|
hdmi_writeb(hdmi, 0, HDMI_FC_MASK2);
|
|
hdmi_writeb(hdmi, 0, HDMI_IH_MUTE_FC_STAT2);
|
|
}
|
|
|
|
static void hdmi_disable_overflow_interrupts(struct imx_hdmi *hdmi)
|
|
{
|
|
hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK,
|
|
HDMI_IH_MUTE_FC_STAT2);
|
|
}
|
|
|
|
static int imx_hdmi_setup(struct imx_hdmi *hdmi, struct drm_display_mode *mode)
|
|
{
|
|
int ret;
|
|
|
|
hdmi_disable_overflow_interrupts(hdmi);
|
|
|
|
hdmi->vic = drm_match_cea_mode(mode);
|
|
|
|
if (!hdmi->vic) {
|
|
dev_dbg(hdmi->dev, "Non-CEA mode used in HDMI\n");
|
|
hdmi->hdmi_data.video_mode.mdvi = true;
|
|
} else {
|
|
dev_dbg(hdmi->dev, "CEA mode used vic=%d\n", hdmi->vic);
|
|
hdmi->hdmi_data.video_mode.mdvi = false;
|
|
}
|
|
|
|
if ((hdmi->vic == 6) || (hdmi->vic == 7) ||
|
|
(hdmi->vic == 21) || (hdmi->vic == 22) ||
|
|
(hdmi->vic == 2) || (hdmi->vic == 3) ||
|
|
(hdmi->vic == 17) || (hdmi->vic == 18))
|
|
hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_601;
|
|
else
|
|
hdmi->hdmi_data.colorimetry = HDMI_COLORIMETRY_ITU_709;
|
|
|
|
if ((hdmi->vic == 10) || (hdmi->vic == 11) ||
|
|
(hdmi->vic == 12) || (hdmi->vic == 13) ||
|
|
(hdmi->vic == 14) || (hdmi->vic == 15) ||
|
|
(hdmi->vic == 25) || (hdmi->vic == 26) ||
|
|
(hdmi->vic == 27) || (hdmi->vic == 28) ||
|
|
(hdmi->vic == 29) || (hdmi->vic == 30) ||
|
|
(hdmi->vic == 35) || (hdmi->vic == 36) ||
|
|
(hdmi->vic == 37) || (hdmi->vic == 38))
|
|
hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 1;
|
|
else
|
|
hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0;
|
|
|
|
hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0;
|
|
|
|
/* TODO: Get input format from IPU (via FB driver interface) */
|
|
hdmi->hdmi_data.enc_in_format = RGB;
|
|
|
|
hdmi->hdmi_data.enc_out_format = RGB;
|
|
|
|
hdmi->hdmi_data.enc_color_depth = 8;
|
|
hdmi->hdmi_data.pix_repet_factor = 0;
|
|
hdmi->hdmi_data.hdcp_enable = 0;
|
|
hdmi->hdmi_data.video_mode.mdataenablepolarity = true;
|
|
|
|
/* HDMI Initialization Step B.1 */
|
|
hdmi_av_composer(hdmi, mode);
|
|
|
|
/* HDMI Initializateion Step B.2 */
|
|
ret = imx_hdmi_phy_init(hdmi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* HDMI Initialization Step B.3 */
|
|
imx_hdmi_enable_video_path(hdmi);
|
|
|
|
/* not for DVI mode */
|
|
if (hdmi->hdmi_data.video_mode.mdvi)
|
|
dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
|
|
else {
|
|
dev_dbg(hdmi->dev, "%s CEA mode\n", __func__);
|
|
|
|
/* HDMI Initialization Step E - Configure audio */
|
|
hdmi_clk_regenerator_update_pixel_clock(hdmi);
|
|
hdmi_enable_audio_clk(hdmi);
|
|
|
|
/* HDMI Initialization Step F - Configure AVI InfoFrame */
|
|
hdmi_config_AVI(hdmi);
|
|
}
|
|
|
|
hdmi_video_packetize(hdmi);
|
|
hdmi_video_csc(hdmi);
|
|
hdmi_video_sample(hdmi);
|
|
hdmi_tx_hdcp_config(hdmi);
|
|
|
|
imx_hdmi_clear_overflow(hdmi);
|
|
if (hdmi->cable_plugin && !hdmi->hdmi_data.video_mode.mdvi)
|
|
hdmi_enable_overflow_interrupts(hdmi);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Wait until we are registered to enable interrupts */
|
|
static int imx_hdmi_fb_registered(struct imx_hdmi *hdmi)
|
|
{
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL,
|
|
HDMI_PHY_I2CM_INT_ADDR);
|
|
|
|
hdmi_writeb(hdmi, HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL |
|
|
HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL,
|
|
HDMI_PHY_I2CM_CTLINT_ADDR);
|
|
|
|
/* enable cable hot plug irq */
|
|
hdmi_writeb(hdmi, (u8)~HDMI_PHY_HPD, HDMI_PHY_MASK0);
|
|
|
|
/* Clear Hotplug interrupts */
|
|
hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void initialize_hdmi_ih_mutes(struct imx_hdmi *hdmi)
|
|
{
|
|
u8 ih_mute;
|
|
|
|
/*
|
|
* Boot up defaults are:
|
|
* HDMI_IH_MUTE = 0x03 (disabled)
|
|
* HDMI_IH_MUTE_* = 0x00 (enabled)
|
|
*
|
|
* Disable top level interrupt bits in HDMI block
|
|
*/
|
|
ih_mute = hdmi_readb(hdmi, HDMI_IH_MUTE) |
|
|
HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
|
|
HDMI_IH_MUTE_MUTE_ALL_INTERRUPT;
|
|
|
|
hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
|
|
|
|
/* by default mask all interrupts */
|
|
hdmi_writeb(hdmi, 0xff, HDMI_VP_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK1);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK2);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_PHY_MASK0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_INT_ADDR);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_CTLINT_ADDR);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_AUD_INT);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_AUD_SPDIFINT);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_AUD_HBR_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_GP_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_A_APIINTMSK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_CEC_MASK);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_I2CM_INT);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_I2CM_CTLINT);
|
|
|
|
/* Disable interrupts in the IH_MUTE_* registers */
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT1);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT2);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AS_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_PHY_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CM_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_CEC_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_VP_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CMPHY_STAT0);
|
|
hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AHBDMAAUD_STAT0);
|
|
|
|
/* Enable top level interrupt bits in HDMI block */
|
|
ih_mute &= ~(HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
|
|
HDMI_IH_MUTE_MUTE_ALL_INTERRUPT);
|
|
hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
|
|
}
|
|
|
|
static void imx_hdmi_poweron(struct imx_hdmi *hdmi)
|
|
{
|
|
imx_hdmi_setup(hdmi, &hdmi->previous_mode);
|
|
}
|
|
|
|
static void imx_hdmi_poweroff(struct imx_hdmi *hdmi)
|
|
{
|
|
imx_hdmi_phy_disable(hdmi);
|
|
}
|
|
|
|
static enum drm_connector_status imx_hdmi_connector_detect(struct drm_connector
|
|
*connector, bool force)
|
|
{
|
|
struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi,
|
|
connector);
|
|
|
|
return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ?
|
|
connector_status_connected : connector_status_disconnected;
|
|
}
|
|
|
|
static int imx_hdmi_connector_get_modes(struct drm_connector *connector)
|
|
{
|
|
struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi,
|
|
connector);
|
|
struct edid *edid;
|
|
int ret;
|
|
|
|
if (!hdmi->ddc)
|
|
return 0;
|
|
|
|
edid = drm_get_edid(connector, hdmi->ddc);
|
|
if (edid) {
|
|
dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n",
|
|
edid->width_cm, edid->height_cm);
|
|
|
|
drm_mode_connector_update_edid_property(connector, edid);
|
|
ret = drm_add_edid_modes(connector, edid);
|
|
kfree(edid);
|
|
} else {
|
|
dev_dbg(hdmi->dev, "failed to get edid\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct drm_encoder *imx_hdmi_connector_best_encoder(struct drm_connector
|
|
*connector)
|
|
{
|
|
struct imx_hdmi *hdmi = container_of(connector, struct imx_hdmi,
|
|
connector);
|
|
|
|
return &hdmi->encoder;
|
|
}
|
|
|
|
static void imx_hdmi_encoder_mode_set(struct drm_encoder *encoder,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
|
|
|
|
imx_hdmi_setup(hdmi, mode);
|
|
|
|
/* Store the display mode for plugin/DKMS poweron events */
|
|
memcpy(&hdmi->previous_mode, mode, sizeof(hdmi->previous_mode));
|
|
}
|
|
|
|
static bool imx_hdmi_encoder_mode_fixup(struct drm_encoder *encoder,
|
|
const struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static void imx_hdmi_encoder_disable(struct drm_encoder *encoder)
|
|
{
|
|
}
|
|
|
|
static void imx_hdmi_encoder_dpms(struct drm_encoder *encoder, int mode)
|
|
{
|
|
struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
|
|
|
|
if (mode)
|
|
imx_hdmi_poweroff(hdmi);
|
|
else
|
|
imx_hdmi_poweron(hdmi);
|
|
}
|
|
|
|
static void imx_hdmi_encoder_prepare(struct drm_encoder *encoder)
|
|
{
|
|
struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
|
|
|
|
imx_hdmi_poweroff(hdmi);
|
|
imx_drm_panel_format(encoder, V4L2_PIX_FMT_RGB24);
|
|
}
|
|
|
|
static void imx_hdmi_encoder_commit(struct drm_encoder *encoder)
|
|
{
|
|
struct imx_hdmi *hdmi = container_of(encoder, struct imx_hdmi, encoder);
|
|
int mux = imx_drm_encoder_get_mux_id(hdmi->dev->of_node, encoder);
|
|
|
|
imx_hdmi_set_ipu_di_mux(hdmi, mux);
|
|
|
|
imx_hdmi_poweron(hdmi);
|
|
}
|
|
|
|
static struct drm_encoder_funcs imx_hdmi_encoder_funcs = {
|
|
.destroy = imx_drm_encoder_destroy,
|
|
};
|
|
|
|
static struct drm_encoder_helper_funcs imx_hdmi_encoder_helper_funcs = {
|
|
.dpms = imx_hdmi_encoder_dpms,
|
|
.prepare = imx_hdmi_encoder_prepare,
|
|
.commit = imx_hdmi_encoder_commit,
|
|
.mode_set = imx_hdmi_encoder_mode_set,
|
|
.mode_fixup = imx_hdmi_encoder_mode_fixup,
|
|
.disable = imx_hdmi_encoder_disable,
|
|
};
|
|
|
|
static struct drm_connector_funcs imx_hdmi_connector_funcs = {
|
|
.dpms = drm_helper_connector_dpms,
|
|
.fill_modes = drm_helper_probe_single_connector_modes,
|
|
.detect = imx_hdmi_connector_detect,
|
|
.destroy = imx_drm_connector_destroy,
|
|
};
|
|
|
|
static struct drm_connector_helper_funcs imx_hdmi_connector_helper_funcs = {
|
|
.get_modes = imx_hdmi_connector_get_modes,
|
|
.best_encoder = imx_hdmi_connector_best_encoder,
|
|
};
|
|
|
|
static irqreturn_t imx_hdmi_hardirq(int irq, void *dev_id)
|
|
{
|
|
struct imx_hdmi *hdmi = dev_id;
|
|
u8 intr_stat;
|
|
|
|
intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
|
|
if (intr_stat)
|
|
hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
return intr_stat ? IRQ_WAKE_THREAD : IRQ_NONE;
|
|
}
|
|
|
|
static irqreturn_t imx_hdmi_irq(int irq, void *dev_id)
|
|
{
|
|
struct imx_hdmi *hdmi = dev_id;
|
|
u8 intr_stat;
|
|
u8 phy_int_pol;
|
|
|
|
intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
|
|
|
|
phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0);
|
|
|
|
if (intr_stat & HDMI_IH_PHY_STAT0_HPD) {
|
|
if (phy_int_pol & HDMI_PHY_HPD) {
|
|
dev_dbg(hdmi->dev, "EVENT=plugin\n");
|
|
|
|
hdmi_modb(hdmi, 0, HDMI_PHY_HPD, HDMI_PHY_POL0);
|
|
|
|
imx_hdmi_poweron(hdmi);
|
|
} else {
|
|
dev_dbg(hdmi->dev, "EVENT=plugout\n");
|
|
|
|
hdmi_modb(hdmi, HDMI_PHY_HPD, HDMI_PHY_HPD,
|
|
HDMI_PHY_POL0);
|
|
|
|
imx_hdmi_poweroff(hdmi);
|
|
}
|
|
drm_helper_hpd_irq_event(hdmi->connector.dev);
|
|
}
|
|
|
|
hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
|
|
hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int imx_hdmi_register(struct drm_device *drm, struct imx_hdmi *hdmi)
|
|
{
|
|
int ret;
|
|
|
|
ret = imx_drm_encoder_parse_of(drm, &hdmi->encoder,
|
|
hdmi->dev->of_node);
|
|
if (ret)
|
|
return ret;
|
|
|
|
hdmi->connector.polled = DRM_CONNECTOR_POLL_HPD;
|
|
|
|
drm_encoder_helper_add(&hdmi->encoder, &imx_hdmi_encoder_helper_funcs);
|
|
drm_encoder_init(drm, &hdmi->encoder, &imx_hdmi_encoder_funcs,
|
|
DRM_MODE_ENCODER_TMDS);
|
|
|
|
drm_connector_helper_add(&hdmi->connector,
|
|
&imx_hdmi_connector_helper_funcs);
|
|
drm_connector_init(drm, &hdmi->connector, &imx_hdmi_connector_funcs,
|
|
DRM_MODE_CONNECTOR_HDMIA);
|
|
|
|
hdmi->connector.encoder = &hdmi->encoder;
|
|
|
|
drm_mode_connector_attach_encoder(&hdmi->connector, &hdmi->encoder);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_device_id imx_hdmi_devtype[] = {
|
|
{
|
|
.name = "imx6q-hdmi",
|
|
.driver_data = IMX6Q_HDMI,
|
|
}, {
|
|
.name = "imx6dl-hdmi",
|
|
.driver_data = IMX6DL_HDMI,
|
|
}, { /* sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(platform, imx_hdmi_devtype);
|
|
|
|
static const struct of_device_id imx_hdmi_dt_ids[] = {
|
|
{ .compatible = "fsl,imx6q-hdmi", .data = &imx_hdmi_devtype[IMX6Q_HDMI], },
|
|
{ .compatible = "fsl,imx6dl-hdmi", .data = &imx_hdmi_devtype[IMX6DL_HDMI], },
|
|
{ /* sentinel */ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, imx_hdmi_dt_ids);
|
|
|
|
static int imx_hdmi_bind(struct device *dev, struct device *master, void *data)
|
|
{
|
|
struct platform_device *pdev = to_platform_device(dev);
|
|
const struct of_device_id *of_id =
|
|
of_match_device(imx_hdmi_dt_ids, dev);
|
|
struct drm_device *drm = data;
|
|
struct device_node *np = dev->of_node;
|
|
struct device_node *ddc_node;
|
|
struct imx_hdmi *hdmi;
|
|
struct resource *iores;
|
|
int ret, irq;
|
|
|
|
hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
|
|
if (!hdmi)
|
|
return -ENOMEM;
|
|
|
|
hdmi->dev = dev;
|
|
hdmi->sample_rate = 48000;
|
|
hdmi->ratio = 100;
|
|
|
|
if (of_id) {
|
|
const struct platform_device_id *device_id = of_id->data;
|
|
|
|
hdmi->dev_type = device_id->driver_data;
|
|
}
|
|
|
|
ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
|
|
if (ddc_node) {
|
|
hdmi->ddc = of_find_i2c_adapter_by_node(ddc_node);
|
|
if (!hdmi->ddc)
|
|
dev_dbg(hdmi->dev, "failed to read ddc node\n");
|
|
|
|
of_node_put(ddc_node);
|
|
} else {
|
|
dev_dbg(hdmi->dev, "no ddc property found\n");
|
|
}
|
|
|
|
irq = platform_get_irq(pdev, 0);
|
|
if (irq < 0)
|
|
return irq;
|
|
|
|
ret = devm_request_threaded_irq(dev, irq, imx_hdmi_hardirq,
|
|
imx_hdmi_irq, IRQF_SHARED,
|
|
dev_name(dev), hdmi);
|
|
if (ret)
|
|
return ret;
|
|
|
|
iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
hdmi->regs = devm_ioremap_resource(dev, iores);
|
|
if (IS_ERR(hdmi->regs))
|
|
return PTR_ERR(hdmi->regs);
|
|
|
|
hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "gpr");
|
|
if (IS_ERR(hdmi->regmap))
|
|
return PTR_ERR(hdmi->regmap);
|
|
|
|
hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
|
|
if (IS_ERR(hdmi->isfr_clk)) {
|
|
ret = PTR_ERR(hdmi->isfr_clk);
|
|
dev_err(hdmi->dev,
|
|
"Unable to get HDMI isfr clk: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = clk_prepare_enable(hdmi->isfr_clk);
|
|
if (ret) {
|
|
dev_err(hdmi->dev,
|
|
"Cannot enable HDMI isfr clock: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
|
|
if (IS_ERR(hdmi->iahb_clk)) {
|
|
ret = PTR_ERR(hdmi->iahb_clk);
|
|
dev_err(hdmi->dev,
|
|
"Unable to get HDMI iahb clk: %d\n", ret);
|
|
goto err_isfr;
|
|
}
|
|
|
|
ret = clk_prepare_enable(hdmi->iahb_clk);
|
|
if (ret) {
|
|
dev_err(hdmi->dev,
|
|
"Cannot enable HDMI iahb clock: %d\n", ret);
|
|
goto err_isfr;
|
|
}
|
|
|
|
/* Product and revision IDs */
|
|
dev_info(dev,
|
|
"Detected HDMI controller 0x%x:0x%x:0x%x:0x%x\n",
|
|
hdmi_readb(hdmi, HDMI_DESIGN_ID),
|
|
hdmi_readb(hdmi, HDMI_REVISION_ID),
|
|
hdmi_readb(hdmi, HDMI_PRODUCT_ID0),
|
|
hdmi_readb(hdmi, HDMI_PRODUCT_ID1));
|
|
|
|
initialize_hdmi_ih_mutes(hdmi);
|
|
|
|
/*
|
|
* To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator
|
|
* N and cts values before enabling phy
|
|
*/
|
|
hdmi_init_clk_regenerator(hdmi);
|
|
|
|
/*
|
|
* Configure registers related to HDMI interrupt
|
|
* generation before registering IRQ.
|
|
*/
|
|
hdmi_writeb(hdmi, HDMI_PHY_HPD, HDMI_PHY_POL0);
|
|
|
|
/* Clear Hotplug interrupts */
|
|
hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD, HDMI_IH_PHY_STAT0);
|
|
|
|
ret = imx_hdmi_fb_registered(hdmi);
|
|
if (ret)
|
|
goto err_iahb;
|
|
|
|
ret = imx_hdmi_register(drm, hdmi);
|
|
if (ret)
|
|
goto err_iahb;
|
|
|
|
/* Unmute interrupts */
|
|
hdmi_writeb(hdmi, ~HDMI_IH_PHY_STAT0_HPD, HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
dev_set_drvdata(dev, hdmi);
|
|
|
|
return 0;
|
|
|
|
err_iahb:
|
|
clk_disable_unprepare(hdmi->iahb_clk);
|
|
err_isfr:
|
|
clk_disable_unprepare(hdmi->isfr_clk);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void imx_hdmi_unbind(struct device *dev, struct device *master,
|
|
void *data)
|
|
{
|
|
struct imx_hdmi *hdmi = dev_get_drvdata(dev);
|
|
|
|
/* Disable all interrupts */
|
|
hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
|
|
|
|
hdmi->connector.funcs->destroy(&hdmi->connector);
|
|
hdmi->encoder.funcs->destroy(&hdmi->encoder);
|
|
|
|
clk_disable_unprepare(hdmi->iahb_clk);
|
|
clk_disable_unprepare(hdmi->isfr_clk);
|
|
i2c_put_adapter(hdmi->ddc);
|
|
}
|
|
|
|
static const struct component_ops hdmi_ops = {
|
|
.bind = imx_hdmi_bind,
|
|
.unbind = imx_hdmi_unbind,
|
|
};
|
|
|
|
static int imx_hdmi_platform_probe(struct platform_device *pdev)
|
|
{
|
|
return component_add(&pdev->dev, &hdmi_ops);
|
|
}
|
|
|
|
static int imx_hdmi_platform_remove(struct platform_device *pdev)
|
|
{
|
|
component_del(&pdev->dev, &hdmi_ops);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver imx_hdmi_driver = {
|
|
.probe = imx_hdmi_platform_probe,
|
|
.remove = imx_hdmi_platform_remove,
|
|
.driver = {
|
|
.name = "imx-hdmi",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = imx_hdmi_dt_ids,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(imx_hdmi_driver);
|
|
|
|
MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
|
|
MODULE_DESCRIPTION("i.MX6 HDMI transmitter driver");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:imx-hdmi");
|