]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
spi: geni-qcom: Undo runtime PM changes at driver exit time
authorJinjie Ruan <ruanjinjie@huawei.com>
Mon, 9 Sep 2024 07:31:39 +0000 (15:31 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 18 Sep 2024 17:24:10 +0000 (19:24 +0200)
[ Upstream commit 89e362c883c65ff94b76b9862285f63545fb5274 ]

It's important to undo pm_runtime_use_autosuspend() with
pm_runtime_dont_use_autosuspend() at driver exit time unless driver
initially enabled pm_runtime with devm_pm_runtime_enable()
(which handles it for you).

Hence, switch to devm_pm_runtime_enable() to fix it, so the
pm_runtime_disable() in probe error path and remove function
can be removed.

Fixes: cfdab2cd85ec ("spi: spi-geni-qcom: Set an autosuspend delay of 250 ms")
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patch.msgid.link/20240909073141.951494-2-ruanjinjie@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/spi/spi-geni-qcom.c

index f4f376a8351b4a244623ab25d1b55d9999951356..983c4896c8cfc75f9a12f5a1472aef688f220a90 100644 (file)
@@ -1110,25 +1110,27 @@ static int spi_geni_probe(struct platform_device *pdev)
        spin_lock_init(&mas->lock);
        pm_runtime_use_autosuspend(&pdev->dev);
        pm_runtime_set_autosuspend_delay(&pdev->dev, 250);
-       pm_runtime_enable(dev);
+       ret = devm_pm_runtime_enable(dev);
+       if (ret)
+               return ret;
 
        if (device_property_read_bool(&pdev->dev, "spi-slave"))
                spi->slave = true;
 
        ret = geni_icc_get(&mas->se, NULL);
        if (ret)
-               goto spi_geni_probe_runtime_disable;
+               return ret;
        /* Set the bus quota to a reasonable value for register access */
        mas->se.icc_paths[GENI_TO_CORE].avg_bw = Bps_to_icc(CORE_2X_50_MHZ);
        mas->se.icc_paths[CPU_TO_GENI].avg_bw = GENI_DEFAULT_BW;
 
        ret = geni_icc_set_bw(&mas->se);
        if (ret)
-               goto spi_geni_probe_runtime_disable;
+               return ret;
 
        ret = spi_geni_init(mas);
        if (ret)
-               goto spi_geni_probe_runtime_disable;
+               return ret;
 
        /*
         * check the mode supported and set_cs for fifo mode only
@@ -1157,8 +1159,6 @@ spi_geni_probe_free_irq:
        free_irq(mas->irq, spi);
 spi_geni_release_dma:
        spi_geni_release_dma_chan(mas);
-spi_geni_probe_runtime_disable:
-       pm_runtime_disable(dev);
        return ret;
 }
 
@@ -1173,7 +1173,6 @@ static void spi_geni_remove(struct platform_device *pdev)
        spi_geni_release_dma_chan(mas);
 
        free_irq(mas->irq, spi);
-       pm_runtime_disable(&pdev->dev);
 }
 
 static int __maybe_unused spi_geni_runtime_suspend(struct device *dev)