Merge tag 'mmc-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull mmc fixes from Ulf Hansson:

 - sdhci-pci-gli: A couple of fixes for low power mode on GL9767

* tag 'mmc-v6.12-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-pci-gli: GL9767: Fix low power mode in the SD Express process
  mmc: sdhci-pci-gli: GL9767: Fix low power mode on the set clock function

1 files changed, 24 insertions, 14 deletions

diff --git a/drivers/mmc/host/sdhci-pci-gli.c b/drivers/mmc/host/sdhci-pci-gli.c
index 0f81586a19df..68ce4920e01e 100644
--- a/drivers/mmc/host/sdhci-pci-gli.c
+++ b/drivers/mmc/host/sdhci-pci-gli.c
@@ -892,28 +892,40 @@ static void gl9767_disable_ssc_pll(struct pci_dev *pdev)
 	gl9767_vhs_read(pdev);
 }
 
+static void gl9767_set_low_power_negotiation(struct pci_dev *pdev, bool enable)
+{
+	u32 value;
+
+	gl9767_vhs_write(pdev);
+
+	pci_read_config_dword(pdev, PCIE_GLI_9767_CFG, &value);
+	if (enable)
+		value &= ~PCIE_GLI_9767_CFG_LOW_PWR_OFF;
+	else
+		value |= PCIE_GLI_9767_CFG_LOW_PWR_OFF;
+	pci_write_config_dword(pdev, PCIE_GLI_9767_CFG, value);
+
+	gl9767_vhs_read(pdev);
+}
+
 static void sdhci_gl9767_set_clock(struct sdhci_host *host, unsigned int clock)
 {
 	struct sdhci_pci_slot *slot = sdhci_priv(host);
 	struct mmc_ios *ios = &host->mmc->ios;
 	struct pci_dev *pdev;
-	u32 value;
 	u16 clk;
 
 	pdev = slot->chip->pdev;
 	host->mmc->actual_clock = 0;
 
-	gl9767_vhs_write(pdev);
-
-	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_set_low_power_negotiation(pdev, false);
 	gl9767_disable_ssc_pll(pdev);
 	sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
 
-	if (clock == 0)
+	if (clock == 0) {
+		gl9767_set_low_power_negotiation(pdev, true);
 		return;
+	}
 
 	clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock);
 	if (clock == 200000000 && ios->timing == MMC_TIMING_UHS_SDR104) {
@@ -922,12 +934,7 @@ static void sdhci_gl9767_set_clock(struct sdhci_host *host, unsigned int clock)
 	}
 
 	sdhci_enable_clk(host, clk);
-
-	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);
+	gl9767_set_low_power_negotiation(pdev, true);
 }
 
 static void gli_set_9767(struct sdhci_host *host)
@@ -1061,6 +1068,9 @@ 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;