From: Ben Chuang Date: Fri, 25 Oct 2024 06:00:17 +0000 (+0800) Subject: mmc: sdhci-pci-gli: GL9767: Fix low power mode in the SD Express process X-Git-Tag: v6.6.60~44 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0fc87887dcb3a8c2651db8aa07cc8aecc40fc4b8;p=platform%2Fkernel%2Flinux-rpi.git mmc: sdhci-pci-gli: GL9767: Fix low power mode in the SD Express process commit c4dedaaeb3f78d3718e9c1b1e4d972a6b99073cd upstream. When starting the SD Express process, the low power negotiation mode will be disabled, so we need to re-enable it after switching back to SD mode. Fixes: 0e92aec2efa0 ("mmc: sdhci-pci-gli: Add support SD Express card for GL9767") Signed-off-by: Ben Chuang Cc: stable@vger.kernel.org Message-ID: <20241025060017.1663697-2-benchuanggli@gmail.com> Signed-off-by: Ulf Hansson Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c index 4c89ecd22ea1..11c404374d79 100644 --- a/drivers/mmc/host/sdhci-pci-gli.c +++ b/drivers/mmc/host/sdhci-pci-gli.c @@ -1078,6 +1078,9 @@ static int gl9767_init_sd_express(struct mmc_host *mmc, struct mmc_ios *ios) sdhci_writew(host, value, SDHCI_CLOCK_CONTROL); } + pci_read_config_dword(pdev, PCIE_GLI_9767_CFG, &value); + value &= ~PCIE_GLI_9767_CFG_LOW_PWR_OFF; + pci_write_config_dword(pdev, PCIE_GLI_9767_CFG, value); gl9767_vhs_read(pdev); return 0;