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[2.139.173.89]) by smtp.gmail.com with ESMTPSA id z10sm3808649ejg.36.2019.04.12.12.06.24 (version=TLS1_3 cipher=AEAD-AES128-GCM-SHA256 bits=128/128); Fri, 12 Apr 2019 12:06:25 -0700 (PDT) Subject: Re: [v2 PATCH 6/6] usb: mtu3: get optional clock by devm_clk_get_optional() To: Chunfeng Yun , Greg Kroah-Hartman References: <147496a43bb93120bbd00a39668612c96e369691.1554877692.git.chunfeng.yun@mediatek.com> From: Matthias Brugger Openpgp: preference=signencrypt Autocrypt: addr=matthias.bgg@gmail.com; prefer-encrypt=mutual; keydata= mQINBFP1zgUBEAC21D6hk7//0kOmsUrE3eZ55kjc9DmFPKIz6l4NggqwQjBNRHIMh04BbCMY fL3eT7ZsYV5nur7zctmJ+vbszoOASXUpfq8M+S5hU2w7sBaVk5rpH9yW8CUWz2+ZpQXPJcFa OhLZuSKB1F5JcvLbETRjNzNU7B3TdS2+zkgQQdEyt7Ij2HXGLJ2w+yG2GuR9/iyCJRf10Okq gTh//XESJZ8S6KlOWbLXRE+yfkKDXQx2Jr1XuVvM3zPqH5FMg8reRVFsQ+vI0b+OlyekT/Xe 0Hwvqkev95GG6x7yseJwI+2ydDH6M5O7fPKFW5mzAdDE2g/K9B4e2tYK6/rA7Fq4cqiAw1+u EgO44+eFgv082xtBez5WNkGn18vtw0LW3ESmKh19u6kEGoi0WZwslCNaGFrS4M7OH+aOJeqK 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lc8SuADCmMD+kBOVWktZyzkBkDfBXlTWl46T/8291lEspDWe5YW1ZAH/HdCR1rQNZWjNCpB2 Cic58CYMD1rSonCnbfUeyZYNNhNHZosl4dl7f+am87Q2x3pK0DLSoJRxWb7vZB0uo9CzCSm3 I++aYozF25xQoT+7zCx2cQi33jwvnJAK1o4VlNx36RfrxzBqc1uZGzJBCQu48UjmUSsTwWC3 HpE/D9sM+xACs803lFUIZC5H62G059cCPAXKgsFpNMKmBAWweBkVJAisoQeX50OP+/11ArV0 cv+fOTfJj0/KwFXJaaYh3LUQNILLBNxkSrhCLl8dUg53IbHx4NfIAgqxLWGfXM8DY1aFdU79 pac005PuhxCWkKTJz3gCmznnoat4GCnL5gy/m0Qk45l4PFqwWXVLo9AQg2Kp3mlIFZ6fsEKI AN5hxlbNvNb9V2Zo5bFZjPWPFTxOteM0omUAS+QopwU0yPLLGJVf2iCmItHcUXI+r2JwH1CJ jrHWeQEI2ucSKsNa8FllDmG/fQ== Message-ID: <5978a0ce-7559-40f6-1bcb-de84c63cbbda@gmail.com> Date: Fri, 12 Apr 2019 21:06:23 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <147496a43bb93120bbd00a39668612c96e369691.1554877692.git.chunfeng.yun@mediatek.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190412_120629_766377_5432A1EA X-CRM114-Status: GOOD ( 17.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mathias Nyman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Marek Szyprowski Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/04/2019 08:47, Chunfeng Yun wrote: > Use devm_clk_get_optional() to get optional clock > > Signed-off-by: Chunfeng Yun Reviewed-by: Matthias Brugger > --- > 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); > > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel