mmc: sdhci-brcmstb: Fix mmc timeout errors on S5 suspend

Commit e7b5d63a82fe ("mmc: sdhci-brcmstb: Add shutdown callback")
that added a shutdown callback to the diver, is causing "mmc timeout"
errors on S5 suspend. The problem was that the "remove" was queuing
additional MMC commands after the "shutdown" and these caused
timeouts as the MMC queues were cleaned up for "remove". The
shutdown callback will be changed to calling sdhci-pltfm_suspend
which should get better power savings because the clocks will be
shutdown.

Fixes: e7b5d63a82fe ("mmc: sdhci-brcmstb: Add shutdown callback")
Signed-off-by: Al Cooper <alcooperx@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210107221509.6597-1-alcooperx@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci-brcmstb.c b/drivers/mmc/host/sdhci-brcmstb.c
index bbf3496f44955f333ed2085499d99999403542ab..f9780c65ebe98a76d94fe014b3299ccde99ddd23 100644 (file)
--- a/drivers/mmc/host/sdhci-brcmstb.c
+++ b/drivers/mmc/host/sdhci-brcmstb.c
@@ -314,11 +314,7 @@ err_clk:
 
 static void sdhci_brcmstb_shutdown(struct platform_device *pdev)
 {
-       int ret;
-
-       ret = sdhci_pltfm_unregister(pdev);
-       if (ret)
-               dev_err(&pdev->dev, "failed to shutdown\n");
+       sdhci_pltfm_suspend(&pdev->dev);
 }
 
 MODULE_DEVICE_TABLE(of, sdhci_brcm_of_match);