phy: qcom: qmp-combo: Add polarity inversion support for SAR2130P

On SAR2130P QXR Platform, the CC Lines are inverted and the lane
programming is to be done reverse compared to other targets.

As per the HW specifics, Bit-2 of TYPEC_CTRL register indicates
port select polarity. This bit is to be set for SAR2130P.

Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20251017203438.744197-1-krishna.kurapati@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index 97c6ff46c37358fca60c3ee42579eb459f595f71..93f1aa10d40086cc8fa51f34924acd0e76bc7666 100644 (file)
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -69,6 +69,7 @@
 /* QPHY_V3_DP_COM_TYPEC_CTRL register bits */
 #define SW_PORTSELECT_VAL                      BIT(0)
 #define SW_PORTSELECT_MUX                      BIT(1)
+#define INVERT_CC_POLARITY                     BIT(2)
 
 #define PHY_INIT_COMPLETE_TIMEOUT              10000
 
@@ -2260,6 +2261,7 @@ struct qmp_phy_cfg {
        /* Offset from PCS to PCS_USB region */
        unsigned int pcs_usb_offset;
 
+       bool invert_cc_polarity;
 };
 
 struct qmp_combo {
@@ -2471,6 +2473,7 @@ static const struct qmp_phy_cfg sar2130p_usb3dpphy_cfg = {
        .num_resets             = ARRAY_SIZE(msm8996_usb3phy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
        .num_vregs              = ARRAY_SIZE(qmp_phy_vreg_l),
+       .invert_cc_polarity     = true,
 };
 
 static const struct qmp_phy_cfg sc7180_usb3dpphy_cfg = {
@@ -3705,6 +3708,10 @@ static int qmp_combo_com_init(struct qmp_combo *qmp, bool force)
        val = SW_PORTSELECT_MUX;
        if (qmp->orientation == TYPEC_ORIENTATION_REVERSE)
                val |= SW_PORTSELECT_VAL;
+
+       if (cfg->invert_cc_polarity)
+               val |= INVERT_CC_POLARITY;
+
        writel(val, com + QPHY_V3_DP_COM_TYPEC_CTRL);
 
        switch (qmp->qmpphy_mode) {