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@xxxxxxxxxxxx>
---
v3: modify changelog comment
v2: no changes
---
drivers/usb/host/xhci-mtk.c | 19 +++----------------
1 file 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);
}
--
2.21.0
