{"id":2221263,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2221263/?format=json","project":{"id":38,"url":"http://patchwork.ozlabs.org/api/1.0/projects/38/?format=json","name":"Linux PWM development","link_name":"linux-pwm","list_id":"linux-pwm.vger.kernel.org","list_email":"linux-pwm@vger.kernel.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260409-03-k3-pwm-drv-v1-2-1307a06fba38@kernel.org>","date":"2026-04-09T00:45:12","name":"[2/2] pwm: pxa: Add optional bus clock","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":false,"hash":"2877024c0b4c7dde80a60d3c8355d5ddc53b7931","submitter":{"id":91543,"url":"http://patchwork.ozlabs.org/api/1.0/people/91543/?format=json","name":"Yixun Lan","email":"dlan@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-pwm/patch/20260409-03-k3-pwm-drv-v1-2-1307a06fba38@kernel.org/mbox/","series":[{"id":499229,"url":"http://patchwork.ozlabs.org/api/1.0/series/499229/?format=json","date":"2026-04-09T00:45:10","name":"pwm: spacemit: Add Support for K3 SoC","version":1,"mbox":"http://patchwork.ozlabs.org/series/499229/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2221263/checks/","tags":{},"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-pwm@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=NhMwCL5c;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=172.234.253.10; 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charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260409-03-k3-pwm-drv-v1-2-1307a06fba38@kernel.org>","References":"<20260409-03-k3-pwm-drv-v1-0-1307a06fba38@kernel.org>","In-Reply-To":"<20260409-03-k3-pwm-drv-v1-0-1307a06fba38@kernel.org>","To":"=?utf-8?q?Uwe_Kleine-K=C3=B6nig?= ,\n Rob Herring , Krzysztof Kozlowski ,\n Conor Dooley ,\n =?utf-8?q?Duje_Mihanovi=C4=87?= ","Cc":"linux-pwm@vger.kernel.org, devicetree@vger.kernel.org,\n linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,\n spacemit@lists.linux.dev, Yixun Lan ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=openpgp-sha256; l=1234; i=dlan@kernel.org;\n h=from:subject:message-id; bh=UvKB/rO0ym8ehbjJC0/3pdgIwU+JdYoe/WxSBUf/xtA=;\n b=owEB6QIW/ZANAwAKATGq6kdZTbvtAcsmYgBp1vafLCs9aBUlDwfMwtLHaT/gneL5h3TmzUk0S\n QajC3U3UB+JAq8EAAEKAJkWIQS1urjJwxtxFWcCI9wxqupHWU277QUCadb2nxsUgAAAAAAEAA5t\n YW51MiwyLjUrMS4xMSwyLDJfFIAAAAAALgAoaXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5\n maWZ0aGhvcnNlbWFuLm5ldEI1QkFCOEM5QzMxQjcxMTU2NzAyMjNEQzMxQUFFQTQ3NTk0REJCRU\n QACgkQMarqR1lNu+0/yQ//QYPuYB0b8I0gFUKwB3KMY+w/ICUaD59ogvayqcLMSc0LFzgi1UnGZ\n l7hFHdAvNn+AfWW5VCLrelrpHmbTUZcbTAvZYgrkKgPmk6CK67ag1KAexBQosMS6Lf4lP83OXQ/\n Ys/5rssqfUC+CSU3zbj4IpHf3sNB+MO2wEO9LWZityY/tVIf6/vgpNi5KZhhQy2UakBcvkl/e72\n uaTa1/FBhOefLHCWuO9BZ7q6psSNNdshqQJCRK0b08OYNtsyuLmixU2bY5WFVHGZmYsuiW+Yodp\n E3srFvPPcvDduawh3CgF91BfR7xPkf1QEPflDhIKWMgb4WsowHFTDkI3EGlWO9bdIzsUTQNaW42\n CQSXvDH10jpVBmC87uUim7ifJ9uOCARtQrqDcOtxptMVnvsYgkjB8vqDU0PtpiFZejdXbjDR0ZJ\n zjWFnzu2lRwR/FvWCwtMv9jts8Edz+nEsNxkRAEh4/8jXtv9g5sPegEJ6QYX6lBugQnKkHZfcUM\n KR1SnB2VaCaVqPTZKNMot896z7/Ea6gklx88FewMq11wSfEe3dIDBdc3qtjQsSDzYMNaKJTMIpp\n CI0bJ+peWVejVvBbr0wnNFbOwwxenO3WsUFhkwjyFle/J0OA+qd04YZCN4sn7wr4Koy/uA23ATg\n Chadlirppt1DFcLKBqN8I+tAJ5Yj00=","X-Developer-Key":"i=dlan@kernel.org; a=openpgp;\n fpr=50B03A1A5CBCD33576EF8CD7920C0DBCAABEFD55"},"content":"Add one secondary optional bus clock for the PWM PXA driver, also keep it\ncompatible with old single clock.\n\nThe SpacemiT K3 SoC require one bus clock for PWM controller, acquire\nand enable it during probe phase.\n\nSigned-off-by: Yixun Lan \n---\n drivers/pwm/pwm-pxa.c | 8 +++++++-\n 1 file changed, 7 insertions(+), 1 deletion(-)","diff":"diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c\nindex 0f5bdb0e395e..2ace31405c2d 100644\n--- a/drivers/pwm/pwm-pxa.c\n+++ b/drivers/pwm/pwm-pxa.c\n@@ -53,6 +53,7 @@ struct pxa_pwm_chip {\n \tstruct device\t*dev;\n \n \tstruct clk\t*clk;\n+\tstruct clk\t*bus_clk;\n \tvoid __iomem\t*mmio_base;\n };\n \n@@ -177,7 +178,12 @@ static int pwm_probe(struct platform_device *pdev)\n \t\treturn PTR_ERR(chip);\n \tpc = to_pxa_pwm_chip(chip);\n \n-\tpc->clk = devm_clk_get(dev, NULL);\n+\tpc->bus_clk = devm_clk_get_optional_enabled(dev, \"bus\");\n+\tif (IS_ERR(pc->bus_clk))\n+\t\treturn dev_err_probe(dev, PTR_ERR(pc->bus_clk), \"Failed to get bus clock\\n\");\n+\n+\t/* Get named func clk if bus clock is valid */\n+\tpc->clk = devm_clk_get(dev, pc->bus_clk ? \"func\" : NULL);\n \tif (IS_ERR(pc->clk))\n \t\treturn dev_err_probe(dev, PTR_ERR(pc->clk), \"Failed to get clock\\n\");\n \n","prefixes":["2/2"]}