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charset="utf-8" The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids calls to clk_disable_unprepare(). Signed-off-by: Lei Liu --- drivers/usb/gadget/udc/aspeed_udc.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/drivers/usb/gadget/udc/aspeed_udc.c b/drivers/usb/gadget/udc/a= speed_udc.c index f4781e611aaa..a362e31f7550 100644 --- a/drivers/usb/gadget/udc/aspeed_udc.c +++ b/drivers/usb/gadget/udc/aspeed_udc.c @@ -1459,8 +1459,6 @@ static void ast_udc_remove(struct platform_device *pd= ev) ctrl =3D ast_udc_read(udc, AST_UDC_FUNC_CTRL) & ~USB_UPSTREAM_EN; ast_udc_write(udc, ctrl, AST_UDC_FUNC_CTRL); =20 - clk_disable_unprepare(udc->clk); - spin_unlock_irqrestore(&udc->lock, flags); =20 if (udc->ep0_buf) @@ -1500,16 +1498,11 @@ static int ast_udc_probe(struct platform_device *pd= ev) =20 platform_set_drvdata(pdev, udc); =20 - udc->clk =3D devm_clk_get(&pdev->dev, NULL); + udc->clk =3D devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(udc->clk)) { rc =3D PTR_ERR(udc->clk); goto err; } - rc =3D clk_prepare_enable(udc->clk); - if (rc) { - dev_err(&pdev->dev, "Failed to enable clock (0x%x)\n", rc); 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charset="utf-8" The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids calls to clk_disable_unprepare(). --- v0 -> v1 Incorrect usage of clk_prepare_enable() should be=20 corrected to devm_clk_get_enabled(). Signed-off-by: Lei Liu --- drivers/usb/gadget/udc/pxa27x_udc.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/p= xa27x_udc.c index 1a6317e4b2a3..6e99e75f1acb 100644 --- a/drivers/usb/gadget/udc/pxa27x_udc.c +++ b/drivers/usb/gadget/udc/pxa27x_udc.c @@ -2398,14 +2398,10 @@ static int pxa_udc_probe(struct platform_device *pd= ev) if (udc->gpiod) gpiod_direction_output(udc->gpiod, 0); =20 - udc->clk =3D devm_clk_get(&pdev->dev, NULL); + udc->clk =3D devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(udc->clk)) return PTR_ERR(udc->clk); =20 - retval =3D clk_prepare(udc->clk); - if (retval) - return retval; - udc->vbus_sensed =3D 0; =20 the_controller =3D udc; --=20 2.34.1 From nobody Sun Feb 8 23:06:40 2026 Received: from APC01-TYZ-obe.outbound.protection.outlook.com (mail-tyzapc01on2048.outbound.protection.outlook.com [40.107.117.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA4B956446; 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charset="utf-8" The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids calls to clk_disable_unprepare(). Signed-off-by: Lei Liu --- drivers/usb/gadget/udc/r8a66597-udc.c | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc= /r8a66597-udc.c index db4a10a979f9..bdbe5ead741e 100644 --- a/drivers/usb/gadget/udc/r8a66597-udc.c +++ b/drivers/usb/gadget/udc/r8a66597-udc.c @@ -1812,10 +1812,6 @@ static void r8a66597_remove(struct platform_device *= pdev) usb_del_gadget_udc(&r8a66597->gadget); del_timer_sync(&r8a66597->timer); r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req); - - if (r8a66597->pdata->on_chip) { - clk_disable_unprepare(r8a66597->clk); - } } =20 static void nop_completion(struct usb_ep *ep, struct usb_request *r) @@ -1876,18 +1872,17 @@ static int r8a66597_probe(struct platform_device *p= dev) =20 if (r8a66597->pdata->on_chip) { snprintf(clk_name, sizeof(clk_name), "usb%d", pdev->id); - r8a66597->clk =3D devm_clk_get(dev, clk_name); + r8a66597->clk =3D devm_clk_get_enabled(dev, clk_name); if (IS_ERR(r8a66597->clk)) { dev_err(dev, "cannot get clock \"%s\"\n", clk_name); return PTR_ERR(r8a66597->clk); } - clk_prepare_enable(r8a66597->clk); } =20 if (r8a66597->pdata->sudmac) { ret =3D r8a66597_sudmac_ioremap(r8a66597, pdev); if (ret < 0) - goto clean_up2; + goto err_add_udc; } =20 disable_controller(r8a66597); /* make sure controller is disabled */ @@ -1896,7 +1891,7 @@ static int r8a66597_probe(struct platform_device *pde= v) udc_name, r8a66597); if (ret < 0) { dev_err(dev, "request_irq error (%d)\n", ret); - goto clean_up2; + goto err_add_udc; } =20 INIT_LIST_HEAD(&r8a66597->gadget.ep_list); @@ -1939,7 +1934,7 @@ static int r8a66597_probe(struct platform_device *pde= v) GFP_KERNEL); if (r8a66597->ep0_req =3D=3D NULL) { ret =3D -ENOMEM; - goto clean_up2; + goto err_add_udc; } r8a66597->ep0_req->complete =3D nop_completion; =20 @@ -1952,9 +1947,6 @@ static int r8a66597_probe(struct platform_device *pde= v) =20 err_add_udc: r8a66597_free_request(&r8a66597->ep[0].ep, r8a66597->ep0_req); 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charset="utf-8" The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids calls to clk_disable_unprepare(). --- v0 -> v1 Incorrect usage of devm_clk_get_enable() should be corrected to=20 devm_clk_get_enabled(). Signed-off-by: Lei Liu --- drivers/usb/musb/mpfs.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) diff --git a/drivers/usb/musb/mpfs.c b/drivers/usb/musb/mpfs.c index 29c7e5cdb230..06faf5ab22e6 100644 --- a/drivers/usb/musb/mpfs.c +++ b/drivers/usb/musb/mpfs.c @@ -159,19 +159,13 @@ static int mpfs_probe(struct platform_device *pdev) return -ENOMEM; } =20 - clk =3D devm_clk_get(&pdev->dev, NULL); + clk =3D devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); ret =3D PTR_ERR(clk); goto err_phy_release; } =20 - ret =3D clk_prepare_enable(clk); - if (ret) { - dev_err(&pdev->dev, "failed to enable clock\n"); - goto err_phy_release; - } - musb_pdev->dev.parent =3D dev; musb_pdev->dev.coherent_dma_mask =3D DMA_BIT_MASK(39); musb_pdev->dev.dma_mask =3D &musb_pdev->dev.coherent_dma_mask; @@ -184,7 +178,7 @@ static int mpfs_probe(struct platform_device *pdev) pdata =3D devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) { ret =3D -ENOMEM; - goto err_clk_disable; + goto err_phy_release; } =20 pdata->config =3D &mpfs_musb_hdrc_config; @@ -203,7 +197,7 @@ static int mpfs_probe(struct platform_device *pdev) dev_err(dev, "failed to register usb-phy %ld\n", PTR_ERR(glue->phy)); ret =3D PTR_ERR(glue->phy); - goto err_clk_disable; + goto err_phy_release; } =20 platform_set_drvdata(pdev, glue); @@ -211,27 +205,24 @@ static int mpfs_probe(struct platform_device *pdev) ret =3D platform_device_add_resources(musb_pdev, pdev->resource, pdev->nu= m_resources); if (ret) { dev_err(dev, "failed to add resources\n"); - goto err_clk_disable; + goto err_phy_release; } =20 ret =3D platform_device_add_data(musb_pdev, pdata, sizeof(*pdata)); if (ret) { dev_err(dev, "failed to add platform_data\n"); - goto err_clk_disable; + goto err_phy_release; } =20 ret =3D platform_device_add(musb_pdev); if (ret) { dev_err(dev, "failed to register musb device\n"); - goto err_clk_disable; + goto err_phy_release; } =20 dev_info(&pdev->dev, "Registered MPFS MUSB driver\n"); 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Thu, 22 Aug 2024 04:08:21 +0000 Received: from PUZPR06MB5620.apcprd06.prod.outlook.com ([fe80::b771:8e9f:2fb:ee83]) by PUZPR06MB5620.apcprd06.prod.outlook.com ([fe80::b771:8e9f:2fb:ee83%7]) with mapi id 15.20.7897.014; Thu, 22 Aug 2024 04:08:21 +0000 From: Lei Liu To: Neal Liu , Greg Kroah-Hartman , Joel Stanley , Andrew Jeffery , Daniel Mack , Haojian Zhuang , Robert Jarzmik , Conor Dooley , Daire McNamara , Bin Liu , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , linux-aspeed@lists.ozlabs.org, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org Cc: opensource.kernel@vivo.com, Lei Liu Subject: [PATCH v1 5/5] usb: ux500: Use devm_clk_get_enabled() helpers Date: Thu, 22 Aug 2024 12:07:30 +0800 Message-Id: <20240822040734.29412-6-liulei.rjpt@vivo.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240822040734.29412-1-liulei.rjpt@vivo.com> References: <20240822040734.29412-1-liulei.rjpt@vivo.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: TYAPR04CA0012.apcprd04.prod.outlook.com (2603:1096:404:15::24) To PUZPR06MB5620.apcprd06.prod.outlook.com (2603:1096:301:ee::9) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PUZPR06MB5620:EE_|TYSPR06MB7134:EE_ X-MS-Office365-Filtering-Correlation-Id: 94715fbf-8259-4c2a-a08d-08dcc2600fb0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|7416014|376014|52116014|1800799024|921020|38350700014|41080700001; 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charset="utf-8" The devm_clk_get_enabled() helpers: - call devm_clk_get() - call clk_prepare_enable() and register what is needed in order to call clk_disable_unprepare() when needed, as a managed resource. This simplifies the code and avoids calls to clk_disable_unprepare(). --- v0 -> v1 Incorrect usage of clk_prepare_enable() should be corrected to=20 devm_clk_get_enabled(). Signed-off-by: Lei Liu --- drivers/usb/musb/ux500.c | 18 ++++-------------- 1 file changed, 4 insertions(+), 14 deletions(-) diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index c8d9d2a1d2f0..51ce67678c0c 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -246,19 +246,13 @@ static int ux500_probe(struct platform_device *pdev) goto err0; } =20 - clk =3D devm_clk_get(&pdev->dev, NULL); + clk =3D devm_clk_get_enabled(&pdev->dev, NULL); if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); ret =3D PTR_ERR(clk); goto err1; } =20 - ret =3D clk_prepare_enable(clk); - if (ret) { - dev_err(&pdev->dev, "failed to enable clock\n"); - goto err1; - } - musb->dev.parent =3D &pdev->dev; musb->dev.dma_mask =3D &pdev->dev.coherent_dma_mask; musb->dev.coherent_dma_mask =3D pdev->dev.coherent_dma_mask; @@ -276,26 +270,23 @@ static int ux500_probe(struct platform_device *pdev) ret =3D platform_device_add_resources(musb, pdev->resource, pdev->num_res= ources); if (ret) { dev_err(&pdev->dev, "failed to add resources\n"); - goto err2; + goto err1; } =20 ret =3D platform_device_add_data(musb, pdata, sizeof(*pdata)); if (ret) { dev_err(&pdev->dev, "failed to add platform_data\n"); - goto err2; + goto err1; } =20 ret =3D platform_device_add(musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device\n"); - goto err2; + goto err1; } =20 return 0; =20 -err2: - clk_disable_unprepare(clk); - err1: platform_device_put(musb); =20 @@ -308,7 +299,6 @@ static void ux500_remove(struct platform_device *pdev) struct ux500_glue *glue =3D platform_get_drvdata(pdev); =20 platform_device_unregister(glue->musb); - clk_disable_unprepare(glue->clk); } =20 #ifdef CONFIG_PM_SLEEP --=20 2.34.1