On 10/04/2019 08:47, Chunfeng Yun wrote: > Use devm_clk_get_optional() to get optional clock > > Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> Reviewed-by: Matthias Brugger <matthias.bgg@xxxxxxxxx> > --- > v2: new patch, merged into this series from > https://patchwork.kernel.org/patch/10878235/ > --- > drivers/usb/mtu3/mtu3_plat.c | 19 +++---------------- > 1 file changed, 3 insertions(+), 16 deletions(-) > > diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c > index e086630e41a9..745a1da5c9c0 100644 > --- a/drivers/usb/mtu3/mtu3_plat.c > +++ b/drivers/usb/mtu3/mtu3_plat.c > @@ -210,19 +210,6 @@ static void ssusb_ip_sw_reset(struct ssusb_mtk *ssusb) > mtu3_setbits(ssusb->ippc_base, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN); > } > > -/* ignore the error if the clock does not exist */ > -static struct clk *get_optional_clk(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 get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) > { > struct device_node *node = pdev->dev.of_node; > @@ -245,15 +232,15 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb) > return PTR_ERR(ssusb->sys_clk); > } > > - ssusb->ref_clk = get_optional_clk(dev, "ref_ck"); > + ssusb->ref_clk = devm_clk_get_optional(dev, "ref_ck"); > if (IS_ERR(ssusb->ref_clk)) > return PTR_ERR(ssusb->ref_clk); > > - ssusb->mcu_clk = get_optional_clk(dev, "mcu_ck"); > + ssusb->mcu_clk = devm_clk_get_optional(dev, "mcu_ck"); > if (IS_ERR(ssusb->mcu_clk)) > return PTR_ERR(ssusb->mcu_clk); > > - ssusb->dma_clk = get_optional_clk(dev, "dma_ck"); > + ssusb->dma_clk = devm_clk_get_optional(dev, "dma_ck"); > if (IS_ERR(ssusb->dma_clk)) > return PTR_ERR(ssusb->dma_clk); > >
