phy: qcom-snps: Add sc8280xp support

The Qualcomm sc8280xp platform comes with a 5nm femto USB PHY which, in
contrast to previously seen platforms, has the SIDDQ bit in the COMMON0
register default to high.

So make the driver match on the 5nm compatible and make sure to clear
the SIDDQ bit on phy_init.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220225034049.2294207-2-bjorn.andersson@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
index 7e61202..5d20378 100644 (file)
--- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
+++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
@@ -32,6 +32,7 @@
 #define POR                                    BIT(1)
 
 #define USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0   (0x54)
+#define SIDDQ                                  BIT(2)
 #define RETENABLEN                             BIT(3)
 #define FSEL_MASK                              GENMASK(6, 4)
 #define FSEL_DEFAULT                           (0x3 << 4)
@@ -233,6 +234,9 @@ static int qcom_snps_hsphy_init(struct phy *phy)
        qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_UTMI_CTRL0,
                                        SLEEPM, SLEEPM);
 
+       qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0,
+                                  SIDDQ, 0);
+
        qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_UTMI_CTRL5,
                                        POR, 0);
 
@@ -275,6 +279,7 @@ static const struct phy_ops qcom_snps_hsphy_gen_ops = {
 
 static const struct of_device_id qcom_snps_hsphy_of_match_table[] = {
        { .compatible   = "qcom,sm8150-usb-hs-phy", },
+       { .compatible   = "qcom,usb-snps-hs-5nm-phy", },
        { .compatible   = "qcom,usb-snps-hs-7nm-phy", },
        { .compatible   = "qcom,usb-snps-femto-v2-phy", },
        { }