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Message-ID: <1652905444-10130-3-git-send-email-quic_khsieh@quicinc.com>
Date: Wed, 18 May 2022 13:24:03 -0700
From: Kuogee Hsieh <quic_khsieh@...cinc.com>
To: <dri-devel@...ts.freedesktop.org>, <robdclark@...il.com>,
<sean@...rly.run>, <swboyd@...omium.org>, <dianders@...omium.org>,
<vkoul@...nel.org>, <daniel@...ll.ch>, <airlied@...ux.ie>,
<agross@...nel.org>, <dmitry.baryshkov@...aro.org>,
<bjorn.andersson@...aro.org>
CC: Kuogee Hsieh <quic_khsieh@...cinc.com>,
<quic_abhinavk@...cinc.com>, <quic_aravindh@...cinc.com>,
<quic_sbillaka@...cinc.com>, <freedreno@...ts.freedesktop.org>,
<linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v3 2/3] phy/qualcomm: add regulator_set_load to dp phy
This patch add regulator_set_load() before enable regulator at
DP phy driver.
Changes in v2:
-- no regulator_set_load() before disable regulator
Changes in v3:
-- split into two patches
Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
---
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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a Linux Foundation Collaborative Project
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