Commit a390bef7 authored by Fabio Estevam's avatar Fabio Estevam Committed by Greg Kroah-Hartman
Browse files

usb: gadget: fsl_mxc_udc: Remove the driver 



Since 5.10-rc1 i.MX is a devicetree-only platform, and this driver
was only used by the old non-DT i.MX devices.

Remove the driver as it has no users left.

Signed-off-by: default avatarFabio Estevam <festevam@gmail.com>
Acked-by: default avatarPeter Chen <peter.chen@nxp.com>
Link: https://lore.kernel.org/r/20201210210413.15262-1-festevam@gmail.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 88ebce92

drivers/usb/gadget/udc/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -90,7 +90,7 @@ config USB_BCM63XX_UDC 


config USB_FSL_USB2

	tristate "Freescale Highspeed USB DR Peripheral Controller"

	depends on FSL_SOC || ARCH_MXC

	depends on FSL_SOC

	help

	   Some of Freescale PowerPC and i.MX processors have a High Speed

	   Dual-Role(DR) USB controller, which supports device mode.

drivers/usb/gadget/udc/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -23,7 +23,6 @@ obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o 
obj-$(CONFIG_USB_BCM63XX_UDC)	+= bcm63xx_udc.o

obj-$(CONFIG_USB_FSL_USB2)	+= fsl_usb2_udc.o

fsl_usb2_udc-y			:= fsl_udc_core.o

fsl_usb2_udc-$(CONFIG_ARCH_MXC)	+= fsl_mxc_udc.o

obj-$(CONFIG_USB_TEGRA_XUDC)	+= tegra-xudc.o

obj-$(CONFIG_USB_M66592)	+= m66592-udc.o

obj-$(CONFIG_USB_R8A66597)	+= r8a66597-udc.o

drivers/usb/gadget/udc/fsl_mxc_udc.c

deleted100644 → 0
+0 −122
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0+

/*

 * Copyright (C) 2009

 * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>

 *

 * Description:

 * Helper routines for i.MX3x SoCs from Freescale, needed by the fsl_usb2_udc.c

 * driver to function correctly on these systems.

 */

#include <linux/clk.h>

#include <linux/delay.h>

#include <linux/err.h>

#include <linux/fsl_devices.h>

#include <linux/mod_devicetable.h>

#include <linux/platform_device.h>

#include <linux/io.h>



#include "fsl_usb2_udc.h"



static struct clk *mxc_ahb_clk;

static struct clk *mxc_per_clk;

static struct clk *mxc_ipg_clk;



/* workaround ENGcm09152 for i.MX35 */

#define MX35_USBPHYCTRL_OFFSET		0x600

#define USBPHYCTRL_OTGBASE_OFFSET	0x8

#define USBPHYCTRL_EVDO			(1 << 23)



int fsl_udc_clk_init(struct platform_device *pdev)

{

	struct fsl_usb2_platform_data *pdata;

	unsigned long freq;

	int ret;



	pdata = dev_get_platdata(&pdev->dev);



	mxc_ipg_clk = devm_clk_get(&pdev->dev, "ipg");

	if (IS_ERR(mxc_ipg_clk)) {

		dev_err(&pdev->dev, "clk_get(\"ipg\") failed\n");

		return PTR_ERR(mxc_ipg_clk);

	}



	mxc_ahb_clk = devm_clk_get(&pdev->dev, "ahb");

	if (IS_ERR(mxc_ahb_clk)) {

		dev_err(&pdev->dev, "clk_get(\"ahb\") failed\n");

		return PTR_ERR(mxc_ahb_clk);

	}



	mxc_per_clk = devm_clk_get(&pdev->dev, "per");

	if (IS_ERR(mxc_per_clk)) {

		dev_err(&pdev->dev, "clk_get(\"per\") failed\n");

		return PTR_ERR(mxc_per_clk);

	}



	clk_prepare_enable(mxc_ipg_clk);

	clk_prepare_enable(mxc_ahb_clk);

	clk_prepare_enable(mxc_per_clk);



	/* make sure USB_CLK is running at 60 MHz +/- 1000 Hz */

	if (!strcmp(pdev->id_entry->name, "imx-udc-mx27")) {

		freq = clk_get_rate(mxc_per_clk);

		if (pdata->phy_mode != FSL_USB2_PHY_ULPI &&

		    (freq < 59999000 || freq > 60001000)) {

			dev_err(&pdev->dev, "USB_CLK=%lu, should be 60MHz\n", freq);

			ret = -EINVAL;

			goto eclkrate;

		}

	}



	return 0;



eclkrate:

	clk_disable_unprepare(mxc_ipg_clk);

	clk_disable_unprepare(mxc_ahb_clk);

	clk_disable_unprepare(mxc_per_clk);

	mxc_per_clk = NULL;

	return ret;

}



int fsl_udc_clk_finalize(struct platform_device *pdev)

{

	struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);

	int ret = 0;



	/* workaround ENGcm09152 for i.MX35 */

	if (pdata->workaround & FLS_USB2_WORKAROUND_ENGCM09152) {

		unsigned int v;

		struct resource *res = platform_get_resource

			(pdev, IORESOURCE_MEM, 0);

		void __iomem *phy_regs = ioremap(res->start +

						MX35_USBPHYCTRL_OFFSET, 512);

		if (!phy_regs) {

			dev_err(&pdev->dev, "ioremap for phy address fails\n");

			ret = -EINVAL;

			goto ioremap_err;

		}



		v = readl(phy_regs + USBPHYCTRL_OTGBASE_OFFSET);

		writel(v | USBPHYCTRL_EVDO,

			phy_regs + USBPHYCTRL_OTGBASE_OFFSET);



		iounmap(phy_regs);

	}





ioremap_err:

	/* ULPI transceivers don't need usbpll */

	if (pdata->phy_mode == FSL_USB2_PHY_ULPI) {

		clk_disable_unprepare(mxc_per_clk);

		mxc_per_clk = NULL;

	}



	return ret;

}



void fsl_udc_clk_release(void)

{

	if (mxc_per_clk)

		clk_disable_unprepare(mxc_per_clk);

	clk_disable_unprepare(mxc_ahb_clk);

	clk_disable_unprepare(mxc_ipg_clk);

}