[PATCH v4 2/3] phy/qualcomm: add regulator_set_load to dp phy

[Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>]

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

Signed-off-by: Kuogee Hsieh <quic_khsieh@xxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index b144ae1..20ac446 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,
@@ -4072,6 +4077,7 @@ 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 +4145,7 @@ 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,
 
@@ -5008,6 +5015,11 @@ static int qcom_qmp_phy_com_init(struct qmp_phy *qphy)
 		return 0;
 	}
 
+	if (cfg->vreg_enable_load) {
+		for (i = cfg->num_vregs - 1; i >= 0; --i)
+			regulator_set_load(qmp->vregs[i].consumer, cfg->vreg_enable_load[i]);
+	}
+
 	/* turn on regulator supplies */
 	ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs);
 	if (ret) {
-- 
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