From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: [v2,6/6] usb: mtu3: get optional clock by devm_clk_get_optional() From: Matthias Brugger Message-Id: <5978a0ce-7559-40f6-1bcb-de84c63cbbda@gmail.com> Date: Fri, 12 Apr 2019 21:06:23 +0200 To: Chunfeng Yun , Greg Kroah-Hartman Cc: Mathias Nyman , Marek Szyprowski , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org List-ID: T24gMTAvMDQvMjAxOSAwODo0NywgQ2h1bmZlbmcgWXVuIHdyb3RlOgo+IFVzZSBkZXZtX2Nsa19n ZXRfb3B0aW9uYWwoKSB0byBnZXQgb3B0aW9uYWwgY2xvY2sKPiAKPiBTaWduZWQtb2ZmLWJ5OiBD aHVuZmVuZyBZdW4gPGNodW5mZW5nLnl1bkBtZWRpYXRlay5jb20+CgpSZXZpZXdlZC1ieTogTWF0 dGhpYXMgQnJ1Z2dlciA8bWF0dGhpYXMuYmdnQGdtYWlsLmNvbT4KCj4gLS0tCj4gdjI6IG5ldyBw YXRjaCwgbWVyZ2VkIGludG8gdGhpcyBzZXJpZXMgZnJvbQo+ICAgICBodHRwczovL3BhdGNod29y ay5rZXJuZWwub3JnL3BhdGNoLzEwODc4MjM1Lwo+IC0tLQo+ICBkcml2ZXJzL3VzYi9tdHUzL210 dTNfcGxhdC5jIHwgMTkgKysrLS0tLS0tLS0tLS0tLS0tLQo+ICAxIGZpbGUgY2hhbmdlZCwgMyBp bnNlcnRpb25zKCspLCAxNiBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy91 c2IvbXR1My9tdHUzX3BsYXQuYyBiL2RyaXZlcnMvdXNiL210dTMvbXR1M19wbGF0LmMKPiBpbmRl eCBlMDg2NjMwZTQxYTkuLjc0NWExZGE1YzljMCAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL3VzYi9t dHUzL210dTNfcGxhdC5jCj4gKysrIGIvZHJpdmVycy91c2IvbXR1My9tdHUzX3BsYXQuYwo+IEBA IC0yMTAsMTkgKzIxMCw2IEBAIHN0YXRpYyB2b2lkIHNzdXNiX2lwX3N3X3Jlc2V0KHN0cnVjdCBz c3VzYl9tdGsgKnNzdXNiKQo+ICAJbXR1M19zZXRiaXRzKHNzdXNiLT5pcHBjX2Jhc2UsIFUzRF9T U1VTQl9JUF9QV19DVFJMMiwgU1NVU0JfSVBfREVWX1BETik7Cj4gIH0KPiAgCj4gLS8qIGlnbm9y ZSB0aGUgZXJyb3IgaWYgdGhlIGNsb2NrIGRvZXMgbm90IGV4aXN0ICovCj4gLXN0YXRpYyBzdHJ1 Y3QgY2xrICpnZXRfb3B0aW9uYWxfY2xrKHN0cnVjdCBkZXZpY2UgKmRldiwgY29uc3QgY2hhciAq aWQpCj4gLXsKPiAtCXN0cnVjdCBjbGsgKm9wdF9jbGs7Cj4gLQo+IC0Jb3B0X2NsayA9IGRldm1f Y2xrX2dldChkZXYsIGlkKTsKPiAtCS8qIGlnbm9yZSBlcnJvciBudW1iZXIgZXhjZXB0IEVQUk9C RV9ERUZFUiAqLwo+IC0JaWYgKElTX0VSUihvcHRfY2xrKSAmJiAoUFRSX0VSUihvcHRfY2xrKSAh PSAtRVBST0JFX0RFRkVSKSkKPiAtCQlvcHRfY2xrID0gTlVMTDsKPiAtCj4gLQlyZXR1cm4gb3B0 X2NsazsKPiAtfQo+IC0KPiAgc3RhdGljIGludCBnZXRfc3N1c2JfcnNjcyhzdHJ1Y3QgcGxhdGZv cm1fZGV2aWNlICpwZGV2LCBzdHJ1Y3Qgc3N1c2JfbXRrICpzc3VzYikKPiAgewo+ICAJc3RydWN0 IGRldmljZV9ub2RlICpub2RlID0gcGRldi0+ZGV2Lm9mX25vZGU7Cj4gQEAgLTI0NSwxNSArMjMy LDE1IEBAIHN0YXRpYyBpbnQgZ2V0X3NzdXNiX3JzY3Moc3RydWN0IHBsYXRmb3JtX2RldmljZSAq cGRldiwgc3RydWN0IHNzdXNiX210ayAqc3N1c2IpCj4gIAkJcmV0dXJuIFBUUl9FUlIoc3N1c2It PnN5c19jbGspOwo+ICAJfQo+ICAKPiAtCXNzdXNiLT5yZWZfY2xrID0gZ2V0X29wdGlvbmFsX2Ns ayhkZXYsICJyZWZfY2siKTsKPiArCXNzdXNiLT5yZWZfY2xrID0gZGV2bV9jbGtfZ2V0X29wdGlv bmFsKGRldiwgInJlZl9jayIpOwo+ICAJaWYgKElTX0VSUihzc3VzYi0+cmVmX2NsaykpCj4gIAkJ cmV0dXJuIFBUUl9FUlIoc3N1c2ItPnJlZl9jbGspOwo+ICAKPiAtCXNzdXNiLT5tY3VfY2xrID0g Z2V0X29wdGlvbmFsX2NsayhkZXYsICJtY3VfY2siKTsKPiArCXNzdXNiLT5tY3VfY2xrID0gZGV2 bV9jbGtfZ2V0X29wdGlvbmFsKGRldiwgIm1jdV9jayIpOwo+ICAJaWYgKElTX0VSUihzc3VzYi0+ bWN1X2NsaykpCj4gIAkJcmV0dXJuIFBUUl9FUlIoc3N1c2ItPm1jdV9jbGspOwo+ICAKPiAtCXNz dXNiLT5kbWFfY2xrID0gZ2V0X29wdGlvbmFsX2NsayhkZXYsICJkbWFfY2siKTsKPiArCXNzdXNi LT5kbWFfY2xrID0gZGV2bV9jbGtfZ2V0X29wdGlvbmFsKGRldiwgImRtYV9jayIpOwo+ICAJaWYg KElTX0VSUihzc3VzYi0+ZG1hX2NsaykpCj4gIAkJcmV0dXJuIFBUUl9FUlIoc3N1c2ItPmRtYV9j bGspOwo+ICAKPgo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 32133C10F0E for ; 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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 Cc: Mathias Nyman , Marek Szyprowski , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org 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 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text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Message-ID: <20190412190623.vQB9lOE68vJ74U183Xj_KK2yG7M4HbPPCWvKBffbJGM@z> 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); > >