From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 4FE863A7851 for ; Wed, 13 May 2026 18:33:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778697232; cv=none; b=H+Pb1or9bBJipu5oULtj47ldFpCfHoiO7fOpX6dXTOOMJV9xHgeNw8iB+XEAVjcArvn6DUNuD6QVnB+TKdPMDszpStB5toGfEFcwORB9IYcq5VUyCjlnhE/3gRs24zWuHGifvUYV0RLvTtr0D57m7CEhBx415cp5pzbwluDokPw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778697232; c=relaxed/simple; bh=gunl1m7RPTQcboAsqoAjXoRLPS7DGnVCQG/MCGosVhY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Pm59/68UrUFUpVVPI9vDL2aUMc5d4YMOFy66UBm/jkco0McTdS69mKRV8lxG31WSoMTCsTuqvrO0BlUvEfnwRomynNF41buNFloLxIQeLI/c3g9fHqJpDNmq0W1KhgJD7RI1s3/uUNIRavmTO9d9HcyjV6FF++b1p4MXMpI2Zi8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kMB7hLwf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="kMB7hLwf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62C03C2BCC7; Wed, 13 May 2026 18:33:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778697232; bh=gunl1m7RPTQcboAsqoAjXoRLPS7DGnVCQG/MCGosVhY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kMB7hLwf6u9xuRS8m0H0lGbq4Tyqdz7hzGWF8K3uhiU652BM2Gf+RCcFw3HoTzl4h Cj/IGzHEEWFgkNKGBsNctU9KIB1BIv7zxSufHrUUBJBB00trne5kGGwADVT9gnu5Fd /gKnkoqYB0J8tLwdp3u3JIpDerVCR9L7wryIwDUL8dD5QxobjD35soC7I5yYMG2zLx 4VD8ZC5v6Fy59Hjin6BOF9+5mQkHloIyAaN0QhwXIGDc0K0Y74ZWsLKQ0IwnU/TEuE vWHlzI9gUnD5lwqAiOkOG5VR+igpF6IpU87n50Rx5wlibgSWt/qf3hzp0v5XZ1FFg1 UVn/LkROMv5DQ== From: Sasha Levin To: stable@vger.kernel.org Cc: Pei Xiao , Michal Simek , Mark Brown , Sasha Levin Subject: [PATCH 6.6.y 2/3] spi: zynq-qspi: Simplify clock handling with devm_clk_get_enabled() Date: Wed, 13 May 2026 14:33:47 -0400 Message-ID: <20260513183348.3927281-2-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260513183348.3927281-1-sashal@kernel.org> References: <2026051203-dealmaker-flounder-0204@gregkh> <20260513183348.3927281-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Pei Xiao [ Upstream commit 1f8fd9490e3184e9a2394df2e682901a1d57ce71 ] Replace devm_clk_get() followed by clk_prepare_enable() with devm_clk_get_enabled() for both "pclk" and "ref_clk". This removes the need for explicit clock enable and disable calls, as the managed API automatically disables the clocks on device removal or probe failure. Remove the now-unnecessary clk_disable_unprepare() calls from the probe error paths and the remove callback. Simplify error handling by jumping directly to the remove_ctlr label. Signed-off-by: Pei Xiao Acked-by: Michal Simek Link: https://patch.msgid.link/24043625f89376da36feca2408f990a85be7ab36.1775555500.git.xiaopei01@kylinos.cn Signed-off-by: Mark Brown Stable-dep-of: c9c012706c9f ("spi: zynq-qspi: fix controller deregistration") Signed-off-by: Sasha Levin --- drivers/spi/spi-zynq-qspi.c | 42 ++++++------------------------------- 1 file changed, 6 insertions(+), 36 deletions(-) diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c index 8959eb9f2032e..f640c80ed60ca 100644 --- a/drivers/spi/spi-zynq-qspi.c +++ b/drivers/spi/spi-zynq-qspi.c @@ -379,21 +379,10 @@ static int zynq_qspi_setup_op(struct spi_device *spi) { struct spi_controller *ctlr = spi->controller; struct zynq_qspi *qspi = spi_controller_get_devdata(ctlr); - int ret; if (ctlr->busy) return -EBUSY; - ret = clk_enable(qspi->refclk); - if (ret) - return ret; - - ret = clk_enable(qspi->pclk); - if (ret) { - clk_disable(qspi->refclk); - return ret; - } - zynq_qspi_write(qspi, ZYNQ_QSPI_ENABLE_OFFSET, ZYNQ_QSPI_ENABLE_ENABLE_MASK); @@ -659,7 +648,7 @@ static int zynq_qspi_probe(struct platform_device *pdev) goto remove_ctlr; } - xqspi->pclk = devm_clk_get(&pdev->dev, "pclk"); + xqspi->pclk = devm_clk_get_enabled(&pdev->dev, "pclk"); if (IS_ERR(xqspi->pclk)) { dev_err(&pdev->dev, "pclk clock not found.\n"); ret = PTR_ERR(xqspi->pclk); @@ -668,36 +657,24 @@ static int zynq_qspi_probe(struct platform_device *pdev) init_completion(&xqspi->data_completion); - xqspi->refclk = devm_clk_get(&pdev->dev, "ref_clk"); + xqspi->refclk = devm_clk_get_enabled(&pdev->dev, "ref_clk"); if (IS_ERR(xqspi->refclk)) { dev_err(&pdev->dev, "ref_clk clock not found.\n"); ret = PTR_ERR(xqspi->refclk); goto remove_ctlr; } - ret = clk_prepare_enable(xqspi->pclk); - if (ret) { - dev_err(&pdev->dev, "Unable to enable APB clock.\n"); - goto remove_ctlr; - } - - ret = clk_prepare_enable(xqspi->refclk); - if (ret) { - dev_err(&pdev->dev, "Unable to enable device clock.\n"); - goto clk_dis_pclk; - } - xqspi->irq = platform_get_irq(pdev, 0); if (xqspi->irq < 0) { ret = xqspi->irq; - goto clk_dis_all; + goto remove_ctlr; } ret = devm_request_irq(&pdev->dev, xqspi->irq, zynq_qspi_irq, 0, pdev->name, xqspi); if (ret != 0) { ret = -ENXIO; dev_err(&pdev->dev, "request_irq failed\n"); - goto clk_dis_all; + goto remove_ctlr; } ret = of_property_read_u32(np, "num-cs", @@ -707,7 +684,7 @@ static int zynq_qspi_probe(struct platform_device *pdev) } else if (num_cs > ZYNQ_QSPI_MAX_NUM_CS) { ret = -EINVAL; dev_err(&pdev->dev, "only 2 chip selects are available\n"); - goto clk_dis_all; + goto remove_ctlr; } else { ctlr->num_chipselect = num_cs; } @@ -725,15 +702,11 @@ static int zynq_qspi_probe(struct platform_device *pdev) ret = devm_spi_register_controller(&pdev->dev, ctlr); if (ret) { dev_err(&pdev->dev, "devm_spi_register_controller failed\n"); - goto clk_dis_all; + goto remove_ctlr; } return ret; -clk_dis_all: - clk_disable_unprepare(xqspi->refclk); -clk_dis_pclk: - clk_disable_unprepare(xqspi->pclk); remove_ctlr: spi_controller_put(ctlr); @@ -755,9 +728,6 @@ static void zynq_qspi_remove(struct platform_device *pdev) struct zynq_qspi *xqspi = platform_get_drvdata(pdev); zynq_qspi_write(xqspi, ZYNQ_QSPI_ENABLE_OFFSET, 0); - - clk_disable_unprepare(xqspi->refclk); - clk_disable_unprepare(xqspi->pclk); } static const struct of_device_id zynq_qspi_of_match[] = { -- 2.53.0