3528c58eb9
All of the device init and device driver interaction with omap_device is done using platform_device pointers. To make this more explicit, have omap_device return a platform_device pointer instead of an omap_device pointer. All current users of the omap_device pointer were only using it to get at the platform_device pointer or struct device pointer, so fixing all of the users was trivial. This also makes it more difficult for device init code to directly access members of struct omap_device, and allows for easier changing of omap_device internals. Cc: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
129 lines
3.6 KiB
C
129 lines
3.6 KiB
C
/*
|
|
* OMAP2plus display device setup / initialization.
|
|
*
|
|
* Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
|
|
* Senthilvadivu Guruswamy
|
|
* Sumit Semwal
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
|
|
* kind, whether express or implied; without even the implied warranty
|
|
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/err.h>
|
|
|
|
#include <video/omapdss.h>
|
|
#include <plat/omap_hwmod.h>
|
|
#include <plat/omap_device.h>
|
|
#include <plat/omap-pm.h>
|
|
|
|
static struct platform_device omap_display_device = {
|
|
.name = "omapdss",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = NULL,
|
|
},
|
|
};
|
|
|
|
static struct omap_device_pm_latency omap_dss_latency[] = {
|
|
[0] = {
|
|
.deactivate_func = omap_device_idle_hwmods,
|
|
.activate_func = omap_device_enable_hwmods,
|
|
.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
|
|
},
|
|
};
|
|
|
|
struct omap_dss_hwmod_data {
|
|
const char *oh_name;
|
|
const char *dev_name;
|
|
const int id;
|
|
};
|
|
|
|
static const struct omap_dss_hwmod_data omap2_dss_hwmod_data[] __initdata = {
|
|
{ "dss_core", "omapdss_dss", -1 },
|
|
{ "dss_dispc", "omapdss_dispc", -1 },
|
|
{ "dss_rfbi", "omapdss_rfbi", -1 },
|
|
{ "dss_venc", "omapdss_venc", -1 },
|
|
};
|
|
|
|
static const struct omap_dss_hwmod_data omap3_dss_hwmod_data[] __initdata = {
|
|
{ "dss_core", "omapdss_dss", -1 },
|
|
{ "dss_dispc", "omapdss_dispc", -1 },
|
|
{ "dss_rfbi", "omapdss_rfbi", -1 },
|
|
{ "dss_venc", "omapdss_venc", -1 },
|
|
{ "dss_dsi1", "omapdss_dsi1", -1 },
|
|
};
|
|
|
|
static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = {
|
|
{ "dss_core", "omapdss_dss", -1 },
|
|
{ "dss_dispc", "omapdss_dispc", -1 },
|
|
{ "dss_rfbi", "omapdss_rfbi", -1 },
|
|
{ "dss_venc", "omapdss_venc", -1 },
|
|
{ "dss_dsi1", "omapdss_dsi1", -1 },
|
|
{ "dss_dsi2", "omapdss_dsi2", -1 },
|
|
{ "dss_hdmi", "omapdss_hdmi", -1 },
|
|
};
|
|
|
|
int __init omap_display_init(struct omap_dss_board_info *board_data)
|
|
{
|
|
int r = 0;
|
|
struct omap_hwmod *oh;
|
|
struct platform_device *pdev;
|
|
int i, oh_count;
|
|
struct omap_display_platform_data pdata;
|
|
const struct omap_dss_hwmod_data *curr_dss_hwmod;
|
|
|
|
memset(&pdata, 0, sizeof(pdata));
|
|
|
|
if (cpu_is_omap24xx()) {
|
|
curr_dss_hwmod = omap2_dss_hwmod_data;
|
|
oh_count = ARRAY_SIZE(omap2_dss_hwmod_data);
|
|
} else if (cpu_is_omap34xx()) {
|
|
curr_dss_hwmod = omap3_dss_hwmod_data;
|
|
oh_count = ARRAY_SIZE(omap3_dss_hwmod_data);
|
|
} else {
|
|
curr_dss_hwmod = omap4_dss_hwmod_data;
|
|
oh_count = ARRAY_SIZE(omap4_dss_hwmod_data);
|
|
}
|
|
|
|
pdata.board_data = board_data;
|
|
pdata.board_data->get_context_loss_count =
|
|
omap_pm_get_dev_context_loss_count;
|
|
|
|
for (i = 0; i < oh_count; i++) {
|
|
oh = omap_hwmod_lookup(curr_dss_hwmod[i].oh_name);
|
|
if (!oh) {
|
|
pr_err("Could not look up %s\n",
|
|
curr_dss_hwmod[i].oh_name);
|
|
return -ENODEV;
|
|
}
|
|
|
|
pdev = omap_device_build(curr_dss_hwmod[i].dev_name,
|
|
curr_dss_hwmod[i].id, oh, &pdata,
|
|
sizeof(struct omap_display_platform_data),
|
|
omap_dss_latency,
|
|
ARRAY_SIZE(omap_dss_latency), 0);
|
|
|
|
if (WARN((IS_ERR(pdev)), "Could not build omap_device for %s\n",
|
|
curr_dss_hwmod[i].oh_name))
|
|
return -ENODEV;
|
|
}
|
|
omap_display_device.dev.platform_data = board_data;
|
|
|
|
r = platform_device_register(&omap_display_device);
|
|
if (r < 0)
|
|
printk(KERN_ERR "Unable to register OMAP-Display device\n");
|
|
|
|
return r;
|
|
}
|