From 9aa0216550b227f41e3e515d3bfdb336bb92dc38 Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Wed, 14 Jan 2015 17:21:58 +0100 Subject: [PATCH] usb: gadget: at91_udc: Drop uclk clock Now that at91 system clocks forward set_rate request to their parent we can remove the uclk clock and directly call clk_set_rate on fclk. Signed-off-by: Boris Brezillon Acked-by: Alexandre Belloni Acked-by: Felipe Balbi Signed-off-by: Nicolas Ferre --- drivers/usb/gadget/udc/at91_udc.c | 27 +++------------------------ drivers/usb/gadget/udc/at91_udc.h | 2 +- 2 files changed, 4 insertions(+), 25 deletions(-) diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c index 9ff2f7e..d33f299 100644 --- a/drivers/usb/gadget/udc/at91_udc.c +++ b/drivers/usb/gadget/udc/at91_udc.c @@ -895,8 +895,6 @@ static void clk_on(struct at91_udc *udc) return; udc->clocked = 1; - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_enable(udc->uclk); clk_enable(udc->iclk); clk_enable(udc->fclk); } @@ -909,8 +907,6 @@ static void clk_off(struct at91_udc *udc) udc->gadget.speed = USB_SPEED_UNKNOWN; clk_disable(udc->fclk); clk_disable(udc->iclk); - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_disable(udc->uclk); } /* @@ -1781,25 +1777,17 @@ static int at91udc_probe(struct platform_device *pdev) /* get interface and function clocks */ udc->iclk = clk_get(dev, "pclk"); udc->fclk = clk_get(dev, "hclk"); - if (IS_ENABLED(CONFIG_COMMON_CLK)) - udc->uclk = clk_get(dev, "usb_clk"); - if (IS_ERR(udc->iclk) || IS_ERR(udc->fclk) || - (IS_ENABLED(CONFIG_COMMON_CLK) && IS_ERR(udc->uclk))) { + if (IS_ERR(udc->iclk) || IS_ERR(udc->fclk)) { DBG("clocks missing\n"); retval = -ENODEV; goto fail1; } /* don't do anything until we have both gadget driver and VBUS */ - if (IS_ENABLED(CONFIG_COMMON_CLK)) { - clk_set_rate(udc->uclk, 48000000); - retval = clk_prepare(udc->uclk); - if (retval) - goto fail1; - } + clk_set_rate(udc->fclk, 48000000); retval = clk_prepare(udc->fclk); if (retval) - goto fail1a; + goto fail1; retval = clk_prepare_enable(udc->iclk); if (retval) @@ -1873,12 +1861,7 @@ fail1c: clk_unprepare(udc->iclk); fail1b: clk_unprepare(udc->fclk); -fail1a: - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_unprepare(udc->uclk); fail1: - if (IS_ENABLED(CONFIG_COMMON_CLK) && !IS_ERR(udc->uclk)) - clk_put(udc->uclk); if (!IS_ERR(udc->fclk)) clk_put(udc->fclk); if (!IS_ERR(udc->iclk)) @@ -1924,15 +1907,11 @@ static int __exit at91udc_remove(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); release_mem_region(res->start, resource_size(res)); - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_unprepare(udc->uclk); clk_unprepare(udc->fclk); clk_unprepare(udc->iclk); clk_put(udc->iclk); clk_put(udc->fclk); - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_put(udc->uclk); return 0; } diff --git a/drivers/usb/gadget/udc/at91_udc.h b/drivers/usb/gadget/udc/at91_udc.h index 0175246..e647d1c 100644 --- a/drivers/usb/gadget/udc/at91_udc.h +++ b/drivers/usb/gadget/udc/at91_udc.h @@ -126,7 +126,7 @@ struct at91_udc { unsigned active_suspend:1; u8 addr; struct at91_udc_data board; - struct clk *iclk, *fclk, *uclk; + struct clk *iclk, *fclk; struct platform_device *pdev; struct proc_dir_entry *pde; void __iomem *udp_baseaddr; -- 2.7.4