usb: phy: mxs: Add platform judgement code
The mxs-phy has several bugs and features at different versions, the driver code can get it through of_device_id.data. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
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@ -1,5 +1,5 @@
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/*
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/*
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* Copyright 2012 Freescale Semiconductor, Inc.
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* Copyright 2012-2013 Freescale Semiconductor, Inc.
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* Copyright (C) 2012 Marek Vasut <marex@denx.de>
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* Copyright (C) 2012 Marek Vasut <marex@denx.de>
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* on behalf of DENX Software Engineering GmbH
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* on behalf of DENX Software Engineering GmbH
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*
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*
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@ -20,6 +20,7 @@
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#include <linux/delay.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/err.h>
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#include <linux/io.h>
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#include <linux/io.h>
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#include <linux/of_device.h>
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#define DRIVER_NAME "mxs_phy"
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#define DRIVER_NAME "mxs_phy"
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@ -34,13 +35,55 @@
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#define BM_USBPHY_CTRL_ENUTMILEVEL2 BIT(14)
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#define BM_USBPHY_CTRL_ENUTMILEVEL2 BIT(14)
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#define BM_USBPHY_CTRL_ENHOSTDISCONDETECT BIT(1)
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#define BM_USBPHY_CTRL_ENHOSTDISCONDETECT BIT(1)
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#define to_mxs_phy(p) container_of((p), struct mxs_phy, phy)
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/* Do disconnection between PHY and controller without vbus */
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#define MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS BIT(0)
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/*
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* The PHY will be in messy if there is a wakeup after putting
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* bus to suspend (set portsc.suspendM) but before setting PHY to low
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* power mode (set portsc.phcd).
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*/
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#define MXS_PHY_ABNORMAL_IN_SUSPEND BIT(1)
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/*
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* The SOF sends too fast after resuming, it will cause disconnection
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* between host and high speed device.
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*/
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#define MXS_PHY_SENDING_SOF_TOO_FAST BIT(2)
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struct mxs_phy_data {
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unsigned int flags;
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};
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static const struct mxs_phy_data imx23_phy_data = {
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.flags = MXS_PHY_ABNORMAL_IN_SUSPEND | MXS_PHY_SENDING_SOF_TOO_FAST,
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};
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static const struct mxs_phy_data imx6q_phy_data = {
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.flags = MXS_PHY_SENDING_SOF_TOO_FAST |
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MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS,
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};
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static const struct mxs_phy_data imx6sl_phy_data = {
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.flags = MXS_PHY_DISCONNECT_LINE_WITHOUT_VBUS,
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};
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static const struct of_device_id mxs_phy_dt_ids[] = {
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{ .compatible = "fsl,imx6sl-usbphy", .data = &imx6sl_phy_data, },
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{ .compatible = "fsl,imx6q-usbphy", .data = &imx6q_phy_data, },
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{ .compatible = "fsl,imx23-usbphy", .data = &imx23_phy_data, },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, mxs_phy_dt_ids);
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struct mxs_phy {
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struct mxs_phy {
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struct usb_phy phy;
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struct usb_phy phy;
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struct clk *clk;
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struct clk *clk;
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const struct mxs_phy_data *data;
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};
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};
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#define to_mxs_phy(p) container_of((p), struct mxs_phy, phy)
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static int mxs_phy_hw_init(struct mxs_phy *mxs_phy)
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static int mxs_phy_hw_init(struct mxs_phy *mxs_phy)
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{
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{
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int ret;
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int ret;
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@ -138,6 +181,8 @@ static int mxs_phy_probe(struct platform_device *pdev)
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struct clk *clk;
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struct clk *clk;
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struct mxs_phy *mxs_phy;
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struct mxs_phy *mxs_phy;
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int ret;
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int ret;
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const struct of_device_id *of_id =
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of_match_device(mxs_phy_dt_ids, &pdev->dev);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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base = devm_ioremap_resource(&pdev->dev, res);
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base = devm_ioremap_resource(&pdev->dev, res);
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@ -168,6 +213,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
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mxs_phy->phy.type = USB_PHY_TYPE_USB2;
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mxs_phy->phy.type = USB_PHY_TYPE_USB2;
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mxs_phy->clk = clk;
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mxs_phy->clk = clk;
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mxs_phy->data = of_id->data;
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platform_set_drvdata(pdev, mxs_phy);
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platform_set_drvdata(pdev, mxs_phy);
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@ -187,12 +233,6 @@ static int mxs_phy_remove(struct platform_device *pdev)
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return 0;
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return 0;
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}
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}
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static const struct of_device_id mxs_phy_dt_ids[] = {
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{ .compatible = "fsl,imx23-usbphy", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, mxs_phy_dt_ids);
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static struct platform_driver mxs_phy_driver = {
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static struct platform_driver mxs_phy_driver = {
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.probe = mxs_phy_probe,
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.probe = mxs_phy_probe,
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.remove = mxs_phy_remove,
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.remove = mxs_phy_remove,
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