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Subject[PATCH v11 2/3] phy: qcom-qmp: add regulator_set_load to dp phy
Date
This patch add regulator_set_load() before enable regulator at
DP phy driver.

Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Reviewed-by: Stephen Boyd <swboyd@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)
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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