6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Chuang <ben.chuang@xxxxxxxxxxxxxxxxxxx>
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 <ben.chuang@xxxxxxxxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Message-ID: <20241025060017.1663697-2-benchuanggli@xxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/mmc/host/sdhci-pci-gli.c | 3 +++
1 file changed, 3 insertions(+)
--- 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
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;
