[Freedreno] [PATCH v11 2/3] phy: qcom-qmp: add regulator_set_load to dp phy

[Kuogee Hsieh]

This patch add regulator_set_load() before enable regulator at
DP phy driver.

Signed-off-by: Kuogee Hsieh <quic_khs...@quicinc.com>
Reviewed-by: Stephen Boyd <swb...@chromium.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c 
b/drivers/phy/qualcomm/phy-qcom-qmp.c
index b144ae1..a93e153 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -3130,6 +3130,7 @@ struct qmp_phy_cfg {
        int num_resets;
        /* regulators to be requested */
        const char * const *vreg_list;
+       const unsigned int *vreg_enable_load;
        int num_vregs;
 
        /* array of registers with different offsets */
@@ -3346,6 +3347,10 @@ static const char * const qmp_phy_vreg_l[] = {
        "vdda-phy", "vdda-pll",
 };
 
+static const unsigned int qmp_phy_vreg_enable_load[] = {
+       21800, 36000
+};
+
 static const struct qmp_phy_cfg ipq8074_usb3phy_cfg = {
        .type                   = PHY_TYPE_USB3,
        .nlanes                 = 1,
@@ -3711,6 +3716,7 @@ static const struct qmp_phy_cfg sc7180_usb3phy_cfg = {
        .reset_list             = sc7180_usb3phy_reset_l,
        .num_resets             = ARRAY_SIZE(sc7180_usb3phy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
+       .vreg_enable_load       = qmp_phy_vreg_enable_load,
        .num_vregs              = ARRAY_SIZE(qmp_phy_vreg_l),
        .regs                   = qmp_v3_usb3phy_regs_layout,
 
@@ -3749,6 +3755,7 @@ static const struct qmp_phy_cfg sc7180_dpphy_cfg = {
        .reset_list             = sc7180_usb3phy_reset_l,
        .num_resets             = ARRAY_SIZE(sc7180_usb3phy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
+       .vreg_enable_load       = qmp_phy_vreg_enable_load,
        .num_vregs              = ARRAY_SIZE(qmp_phy_vreg_l),
        .regs                   = qmp_v3_usb3phy_regs_layout,
 
@@ -3940,6 +3947,7 @@ static const struct qmp_phy_cfg sm8150_usb3phy_cfg = {
        .reset_list             = msm8996_usb3phy_reset_l,
        .num_resets             = ARRAY_SIZE(msm8996_usb3phy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
+       .vreg_enable_load       = qmp_phy_vreg_enable_load,
        .num_vregs              = ARRAY_SIZE(qmp_phy_vreg_l),
        .regs                   = qmp_v4_usb3phy_regs_layout,
 
@@ -4009,6 +4017,7 @@ static const struct qmp_phy_cfg sc8180x_dpphy_cfg = {
        .reset_list             = sc7180_usb3phy_reset_l,
        .num_resets             = ARRAY_SIZE(sc7180_usb3phy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
+       .vreg_enable_load       = qmp_phy_vreg_enable_load,
        .num_vregs              = ARRAY_SIZE(qmp_phy_vreg_l),
        .regs                   = qmp_v3_usb3phy_regs_layout,
 
@@ -4072,6 +4081,7 @@ static const struct qmp_phy_cfg sm8250_usb3phy_cfg = {
        .reset_list             = msm8996_usb3phy_reset_l,
        .num_resets             = ARRAY_SIZE(msm8996_usb3phy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
+       .vreg_enable_load       = qmp_phy_vreg_enable_load,
        .num_vregs              = ARRAY_SIZE(qmp_phy_vreg_l),
        .regs                   = qmp_v4_usb3phy_regs_layout,
 
@@ -4139,6 +4149,7 @@ static const struct qmp_phy_cfg sm8250_dpphy_cfg = {
        .reset_list             = msm8996_usb3phy_reset_l,
        .num_resets             = ARRAY_SIZE(msm8996_usb3phy_reset_l),
        .vreg_list              = qmp_phy_vreg_l,
+       .vreg_enable_load       = qmp_phy_vreg_enable_load,
        .num_vregs              = ARRAY_SIZE(qmp_phy_vreg_l),
        .regs                   = qmp_v4_usb3phy_regs_layout,
 
@@ -6107,7 +6118,7 @@ static int qcom_qmp_phy_probe(struct platform_device 
*pdev)
        const struct qmp_phy_cfg *usb_cfg = NULL;
        const struct qmp_phy_cfg *dp_cfg = NULL;
        int num, id, expected_phys;
-       int ret;
+       int ret, i;
 
        qmp = devm_kzalloc(dev, sizeof(*qmp), GFP_KERNEL);
        if (!qmp)
@@ -6175,6 +6186,18 @@ static int qcom_qmp_phy_probe(struct platform_device 
*pdev)
                return ret;
        }
 
+       if (cfg->vreg_enable_load) {
+               for (i = 0; i < cfg->num_vregs; i++) {
+                       ret = regulator_set_load(qmp->vregs[i].consumer,
+                                               cfg->vreg_enable_load[i]);
+                       if (ret) {
+                               dev_err(dev, "failed to set load at %s\n",
+                                               qmp->vregs[i].supply);
+                               return ret;
+                       }
+               }
+       }
+
        num = of_get_available_child_count(dev->of_node);
        /* do we have a rogue child node ? */
        if (num > expected_phys)
-- 
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