linux-kernel - [PATCH v8 1/3] phy: qcom-edp: add regulator_set

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Message-ID: <1653064021-25400-2-git-send-email-quic_khsieh@quicinc.com>
Date:   Fri, 20 May 2022 09:26:59 -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 v8 1/3] phy: qcom-edp: add regulator_set_load to edp phy

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

Signed-off-by: Kuogee Hsieh <quic_khsieh@...cinc.com>
---
 drivers/phy/qualcomm/phy-qcom-edp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
index cacd32f..afd9e17 100644
--- a/drivers/phy/qualcomm/phy-qcom-edp.c
+++ b/drivers/phy/qualcomm/phy-qcom-edp.c
@@ -87,12 +87,17 @@ struct qcom_edp {
 
 	struct clk_bulk_data clks[2];
 	struct regulator_bulk_data supplies[2];
+	int enable_load[2];
 };
 
 static int qcom_edp_phy_init(struct phy *phy)
 {
 	struct qcom_edp *edp = phy_get_drvdata(phy);
 	int ret;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(edp->supplies); i++)
+		regulator_set_load(edp->supplies[i].consumer, edp->enable_load[i]);
 
 	ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies);
 	if (ret)
@@ -635,6 +640,8 @@ static int qcom_edp_phy_probe(struct platform_device *pdev)
 
 	edp->supplies[0].supply = "vdda-phy";
 	edp->supplies[1].supply = "vdda-pll";
+	edp->enable_load[0] = 21800;	/* load for 1.2 V vdda-phy supply */
+	edp->enable_load[1] = 36000;	/* load for 0.9 V vdda-pll supply */
 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(edp->supplies), edp->supplies);
 	if (ret)
 		return ret;
-- 
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