From 73dea4a912b2bfe955305de4891018f9e71e399d Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Wed, 11 Feb 2015 12:44:43 +0800 Subject: [PATCH] usb: chipidea: usbmisc_imx: delete clock information All imx usb controller's non core registers uses the same clock gate with core registers, the usbmisc_imx is the library for imx glue driver, the glue keeps clock on when it calls usbmisc_imx API to change non-core register. Besides, we will support runtime pm in the future, it also needs to close this clock when the usb is not in use. Philipp Zabel also verifies it at imx6q platform, see http://www.spinics.net/lists/linux-usb/msg118491.html Cc: Philipp Zabel Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/usbmisc_imx.c | 19 ------------------- 1 file changed, 19 deletions(-) diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index c3c6225b8acf..93856027d6f4 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -11,7 +11,6 @@ #include #include -#include #include #include #include @@ -69,7 +68,6 @@ struct usbmisc_ops { struct imx_usbmisc { void __iomem *base; spinlock_t lock; - struct clk *clk; const struct usbmisc_ops *ops; }; @@ -322,7 +320,6 @@ static int usbmisc_imx_probe(struct platform_device *pdev) { struct resource *res; struct imx_usbmisc *data; - int ret; struct of_device_id *tmp_dev; data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); @@ -336,20 +333,6 @@ static int usbmisc_imx_probe(struct platform_device *pdev) if (IS_ERR(data->base)) return PTR_ERR(data->base); - data->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(data->clk)) { - dev_err(&pdev->dev, - "failed to get clock, err=%ld\n", PTR_ERR(data->clk)); - return PTR_ERR(data->clk); - } - - ret = clk_prepare_enable(data->clk); - if (ret) { - dev_err(&pdev->dev, - "clk_prepare_enable failed, err=%d\n", ret); - return ret; - } - tmp_dev = (struct of_device_id *) of_match_device(usbmisc_imx_dt_ids, &pdev->dev); data->ops = (const struct usbmisc_ops *)tmp_dev->data; @@ -360,8 +343,6 @@ static int usbmisc_imx_probe(struct platform_device *pdev) static int usbmisc_imx_remove(struct platform_device *pdev) { - struct imx_usbmisc *usbmisc = dev_get_drvdata(&pdev->dev); - clk_disable_unprepare(usbmisc->clk); return 0; } -- 2.20.1