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From: Samuel Holland <samuel@sholland.org>
To: Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Samuel Holland <samuel@sholland.org>,
	Andre Przywara <andre.przywara@arm.com>,
	Maxime Ripard <maxime@cerno.tech>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org,
	linux-sunxi@lists.linux.dev
Subject: [PATCH] mmc: sunxi-mmc: Fix clock refcount imbalance during unbind
Date: Tue,  9 Aug 2022 21:25:09 -0500	[thread overview]
Message-ID: <20220810022509.43743-1-samuel@sholland.org> (raw)

If the controller is suspended by runtime PM, the clock is already
disabled, so do not try to disable it again during removal. Use
pm_runtime_disable() to flush any pending runtime PM transitions.

Fixes: 9a8e1e8cc2c0 ("mmc: sunxi: Add runtime_pm support")
Signed-off-by: Samuel Holland <samuel@sholland.org>
---

 drivers/mmc/host/sunxi-mmc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index b16e12e62e72..3db9f32d6a7b 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1492,9 +1492,11 @@ static int sunxi_mmc_remove(struct platform_device *pdev)
 	struct sunxi_mmc_host *host = mmc_priv(mmc);
 
 	mmc_remove_host(mmc);
-	pm_runtime_force_suspend(&pdev->dev);
-	disable_irq(host->irq);
-	sunxi_mmc_disable(host);
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev)) {
+		disable_irq(host->irq);
+		sunxi_mmc_disable(host);
+	}
 	dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
 	mmc_free_host(mmc);
 
-- 
2.35.1


WARNING: multiple messages have this Message-ID (diff)
From: Samuel Holland <samuel@sholland.org>
To: Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: Samuel Holland <samuel@sholland.org>,
	Andre Przywara <andre.przywara@arm.com>,
	Maxime Ripard <maxime@cerno.tech>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org,
	linux-sunxi@lists.linux.dev
Subject: [PATCH] mmc: sunxi-mmc: Fix clock refcount imbalance during unbind
Date: Tue,  9 Aug 2022 21:25:09 -0500	[thread overview]
Message-ID: <20220810022509.43743-1-samuel@sholland.org> (raw)

If the controller is suspended by runtime PM, the clock is already
disabled, so do not try to disable it again during removal. Use
pm_runtime_disable() to flush any pending runtime PM transitions.

Fixes: 9a8e1e8cc2c0 ("mmc: sunxi: Add runtime_pm support")
Signed-off-by: Samuel Holland <samuel@sholland.org>
---

 drivers/mmc/host/sunxi-mmc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index b16e12e62e72..3db9f32d6a7b 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1492,9 +1492,11 @@ static int sunxi_mmc_remove(struct platform_device *pdev)
 	struct sunxi_mmc_host *host = mmc_priv(mmc);
 
 	mmc_remove_host(mmc);
-	pm_runtime_force_suspend(&pdev->dev);
-	disable_irq(host->irq);
-	sunxi_mmc_disable(host);
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev)) {
+		disable_irq(host->irq);
+		sunxi_mmc_disable(host);
+	}
 	dma_free_coherent(&pdev->dev, PAGE_SIZE, host->sg_cpu, host->sg_dma);
 	mmc_free_host(mmc);
 
-- 
2.35.1


_______________________________________________
linux-arm-kernel mailing list
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

             reply	other threads:[~2022-08-10  2:25 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-10  2:25 Samuel Holland [this message]
2022-08-10  2:25 ` [PATCH] mmc: sunxi-mmc: Fix clock refcount imbalance during unbind Samuel Holland
2022-08-14  8:22 ` Jernej Škrabec
2022-08-14  8:22   ` Jernej Škrabec
2022-08-14 17:56   ` Samuel Holland
2022-08-14 17:56     ` Samuel Holland
2022-08-15 10:11 ` Ulf Hansson
2022-08-15 10:11   ` Ulf Hansson
2023-01-01 19:25   ` Samuel Holland
2023-01-01 19:25     ` Samuel Holland
2023-01-02 15:07     ` Ulf Hansson
2023-01-02 15:07       ` Ulf Hansson

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