diff options
| author | Chunfeng Yun <chunfeng.yun@mediatek.com> | 2019-04-17 11:28:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-19 15:23:34 +0300 |
| commit | 9d918dcea0689eb9dd7154dcea976232c7d8d6e6 (patch) | |
| tree | 105b5852098f45bd983232279e5bd277b4ecdf12 /drivers/usb/host/xhci-mtk.c | |
| parent | 48242e30532b3e30f93f124c214b4308ab267e05 (diff) | |
| download | linux-9d918dcea0689eb9dd7154dcea976232c7d8d6e6.tar.xz | |
usb: xhci-mtk: get optional clock by devm_clk_get_optional()
Use devm_clk_get_optional() to get optional clock instead of
optional_clk_get() which uses devm_clk_get() to get clock and
checks for -EPROBE_DEFER but not -ENOENT as devm_clk_get_optional()
does, in fact, only ignoring -ENOENT will cover more errors, so the
replacement doesn't change original purpose.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-mtk.c')
| -rw-r--r-- | drivers/usb/host/xhci-mtk.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 60987c787e44..026fe18972d3 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -206,19 +206,6 @@ static int xhci_mtk_ssusb_config(struct xhci_hcd_mtk *mtk) return xhci_mtk_host_enable(mtk); } -/* ignore the error if the clock does not exist */ -static struct clk *optional_clk_get(struct device *dev, const char *id) -{ - struct clk *opt_clk; - - opt_clk = devm_clk_get(dev, id); - /* ignore error number except EPROBE_DEFER */ - if (IS_ERR(opt_clk) && (PTR_ERR(opt_clk) != -EPROBE_DEFER)) - opt_clk = NULL; - - return opt_clk; -} - static int xhci_mtk_clks_get(struct xhci_hcd_mtk *mtk) { struct device *dev = mtk->dev; @@ -229,15 +216,15 @@ static int xhci_mtk_clks_get(struct xhci_hcd_mtk *mtk) return PTR_ERR(mtk->sys_clk); } - mtk->ref_clk = optional_clk_get(dev, "ref_ck"); + mtk->ref_clk = devm_clk_get_optional(dev, "ref_ck"); if (IS_ERR(mtk->ref_clk)) return PTR_ERR(mtk->ref_clk); - mtk->mcu_clk = optional_clk_get(dev, "mcu_ck"); + mtk->mcu_clk = devm_clk_get_optional(dev, "mcu_ck"); if (IS_ERR(mtk->mcu_clk)) return PTR_ERR(mtk->mcu_clk); - mtk->dma_clk = optional_clk_get(dev, "dma_ck"); + mtk->dma_clk = devm_clk_get_optional(dev, "dma_ck"); return PTR_ERR_OR_ZERO(mtk->dma_clk); } |