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[93.181.165.181]) by smtp.gmail.com with ESMTPSA id h21-20020a0565123c9500b0044a34642bf4sm505947lfv.7.2022.04.02.04.44.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 Apr 2022 04:44:05 -0700 (PDT) From: Janusz Krzysztofik To: Alan Stern Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-omap@vger.kernel.org, Janusz Krzysztofik Subject: [PATCH] usb: host: ohci-omap: Make it CCF clk API compatible Date: Sat, 2 Apr 2022 13:43:53 +0200 Message-Id: <20220402114353.130775-1-jmkrzyszt@gmail.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org The driver, OMAP1 specific, now omits clk_prepare/unprepare() steps, not supported by OMAP1 custom implementation of clock API. However, non-CCF stubs of those functions exist for use on such platforms until converted to CCF. Update the driver to be compatible with CCF implementation of clock API. Signed-off-by: Janusz Krzysztofik Acked-by: Alan Stern --- drivers/usb/host/ohci-omap.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 45dcf8292072..2ab2e089a2b7 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -281,6 +281,10 @@ static int ohci_hcd_omap_probe(struct platform_device *pdev) goto err_put_hcd; } + retval = clk_prepare(priv->usb_host_ck); + if (retval) + goto err_put_host_ck; + if (!cpu_is_omap15xx()) priv->usb_dc_ck = clk_get(&pdev->dev, "usb_dc_ck"); else @@ -288,13 +292,17 @@ static int ohci_hcd_omap_probe(struct platform_device *pdev) if (IS_ERR(priv->usb_dc_ck)) { retval = PTR_ERR(priv->usb_dc_ck); - goto err_put_host_ck; + goto err_unprepare_host_ck; } + retval = clk_prepare(priv->usb_dc_ck); + if (retval) + goto err_put_dc_ck; + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { dev_dbg(&pdev->dev, "request_mem_region failed\n"); retval = -EBUSY; - goto err_put_dc_ck; + goto err_unprepare_dc_ck; } hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); @@ -319,8 +327,12 @@ static int ohci_hcd_omap_probe(struct platform_device *pdev) iounmap(hcd->regs); err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +err_unprepare_dc_ck: + clk_unprepare(priv->usb_dc_ck); err_put_dc_ck: clk_put(priv->usb_dc_ck); +err_unprepare_host_ck: + clk_unprepare(priv->usb_host_ck); err_put_host_ck: clk_put(priv->usb_host_ck); err_put_hcd: @@ -355,7 +367,9 @@ static int ohci_hcd_omap_remove(struct platform_device *pdev) } iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + clk_unprepare(priv->usb_dc_ck); clk_put(priv->usb_dc_ck); + clk_unprepare(priv->usb_host_ck); clk_put(priv->usb_host_ck); usb_put_hcd(hcd); return 0;