linux-kernel - [PATCH v2 4/6] drm/panel: visionox-rm69299: switch to devm_regulator_bulk_get

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Message-Id: <20250509-topic-misc-shift6-panel-v2-4-c2c2d52abd51@linaro.org>
Date: Fri, 09 May 2025 10:59:42 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Jessica Zhang <quic_jesszhan@...cinc.com>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc: dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Casey Connolly <casey.connolly@...aro.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH v2 4/6] drm/panel: visionox-rm69299: switch to
 devm_regulator_bulk_get_const()

Switch to devm_regulator_bulk_get_const() to move the supply
data to const.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 drivers/gpu/drm/panel/panel-visionox-rm69299.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
index c3c14150a5546512151fb15c8e9a91269ca21c65..fe921d5fb1942c47c5b849e827c244d7fbde25a3 100644
--- a/drivers/gpu/drm/panel/panel-visionox-rm69299.c
+++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c
@@ -24,12 +24,17 @@ struct visionox_rm69299_panel_desc {
 
 struct visionox_rm69299 {
 	struct drm_panel panel;
-	struct regulator_bulk_data supplies[2];
+	struct regulator_bulk_data *supplies;
 	struct gpio_desc *reset_gpio;
 	struct mipi_dsi_device *dsi;
 	const struct visionox_rm69299_panel_desc *desc;
 };
 
+static const struct regulator_bulk_data visionox_rm69299_supplies[] = {
+	{ .supply = "vdda", .init_load_uA = 32000 },
+	{ .supply = "vdd3p3", .init_load_uA = 13200 },
+};
+
 static const u8 visionox_rm69299_1080x2248_60hz_init_seq[][2] = {
 	{ 0xfe, 0x00 }, { 0xc2, 0x08 }, { 0x35, 0x00 }, { 0x51, 0xff },
 };
@@ -43,7 +48,8 @@ static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx)
 {
 	int ret;
 
-	ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+	ret = regulator_bulk_enable(ARRAY_SIZE(visionox_rm69299_supplies),
+				    ctx->supplies);
 	if (ret < 0)
 		return ret;
 
@@ -66,7 +72,8 @@ static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx)
 {
 	gpiod_set_value(ctx->reset_gpio, 0);
 
-	return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);
+	return regulator_bulk_disable(ARRAY_SIZE(visionox_rm69299_supplies),
+				      ctx->supplies);
 }
 
 static int visionox_rm69299_unprepare(struct drm_panel *panel)
@@ -172,12 +179,8 @@ static int visionox_rm69299_probe(struct mipi_dsi_device *dsi)
 
 	ctx->dsi = dsi;
 
-	ctx->supplies[0].supply = "vdda";
-	ctx->supplies[0].init_load_uA = 32000;
-	ctx->supplies[1].supply = "vdd3p3";
-	ctx->supplies[1].init_load_uA = 13200;
-
-	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(ctx->supplies), ctx->supplies);
+	ret = devm_regulator_bulk_get_const(dev, ARRAY_SIZE(visionox_rm69299_supplies),
+					    visionox_rm69299_supplies, &ctx->supplies);
 	if (ret < 0)
 		return ret;
 

-- 
2.34.1