mmc: sdhci-pci-gli: Fix can not access GL9750 after reboot from Windows 10 (b56ff195) · Commits · 戴 / test

Need to clear some bits in a vendor-defined register after reboot from Windows 10. Fixes: ("mmc: host: sdhci-pci: Add Genesys Logic GL975x support") Reported-by:

Grzegorz Kowal <custos.mentis@gmail.com> Signed-off-by:

Ben Chuang <ben.chuang@genesyslogic.com.tw> Acked-by:

Adrian Hunter <adrian.hunter@intel.com> Tested-by:

Grzegorz Kowal <custos.mentis@gmail.com> Link: https://lore.kernel.org/r/20200504063957.6638-1-benchuanggli@gmail.com Cc: stable@vger.kernel.org Signed-off-by:

Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-pci-gli.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -26,6 +26,9 @@
		#define SDHCI_GLI_9750_DRIVING_2 GENMASK(27, 26)
		#define GLI_9750_DRIVING_1_VALUE 0xFFF
		#define GLI_9750_DRIVING_2_VALUE 0x3
		#define SDHCI_GLI_9750_SEL_1 BIT(29)
		#define SDHCI_GLI_9750_SEL_2 BIT(31)
		#define SDHCI_GLI_9750_ALL_RST (BIT(24)\|BIT(25)\|BIT(28)\|BIT(30))

		#define SDHCI_GLI_9750_PLL 0x864
		#define SDHCI_GLI_9750_PLL_TX2_INV BIT(23)
		@@ -122,6 +125,8 @@ static void gli_set_9750(struct sdhci_host *host)
		GLI_9750_DRIVING_1_VALUE);
		driving_value \|= FIELD_PREP(SDHCI_GLI_9750_DRIVING_2,
		GLI_9750_DRIVING_2_VALUE);
		driving_value &= ~(SDHCI_GLI_9750_SEL_1\|SDHCI_GLI_9750_SEL_2\|SDHCI_GLI_9750_ALL_RST);
		driving_value \|= SDHCI_GLI_9750_SEL_2;
		sdhci_writel(host, driving_value, SDHCI_GLI_9750_DRIVING);

		sw_ctrl_value &= ~SDHCI_GLI_9750_SW_CTRL_4;

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