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SM8550: fix Pocket S Mini panel for Linux 7.2 #3239

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Merged
loki666 merged 1 commit into from
Aug 25, 2026
+33 −15
Merged

SM8550: fix Pocket S Mini panel for Linux 7.2 #3239

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31 changes: 24 additions & 7 deletions projects/ROCKNIX/devices/SM8550/linux/dts/qcom/qcs8550-ayaneo-pocketsmini.dts
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Original file line number Diff line number Diff line change
Expand Up @@ -99,17 +99,33 @@
clock-frequency = <400000>;
status = "okay";

sgm3804: regulator@3e {
/* Screen power */
regulator@3e {
compatible = "sgmicro,sgm3804";
reg = <0x3e>;
pinctrl-0 = <&panel_pwr_active>;
pinctrl-1 = <&panel_pwr_sleep>;
pinctrl-names = "default", "sleep";
regulator-name = "panel-avdd";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
reset-gpios = <&tlmm 152 GPIO_ACTIVE_HIGH>,
<&tlmm 153 GPIO_ACTIVE_HIGH>;

vin-supply = <&vph_pwr>;

sgm3804_pos: pos {
regulator-name = "panel-avdd";
regulator-min-microvolt = <5200000>;
regulator-max-microvolt = <5200000>;
regulator-active-discharge = <1>;
regulator-boot-on;
enable-gpios = <&tlmm 152 GPIO_ACTIVE_HIGH>;
};

sgm3804_neg: neg {
regulator-name = "panel-avee";
regulator-min-microvolt = <5200000>;
regulator-max-microvolt = <5200000>;
regulator-active-discharge = <1>;
regulator-boot-on;
enable-gpios = <&tlmm 153 GPIO_ACTIVE_HIGH>;
};
};

backlight: sy7758@2e {
Expand Down Expand Up @@ -157,7 +173,8 @@
&display_panel {
compatible = "ayaneo,ar16-4inch-panel";

avdd-supply = <&sgm3804>;
avdd-supply = <&sgm3804_pos>;
avee-supply = <&sgm3804_neg>;
vci-supply = <&vreg_l13b_3p0>;
vddio-supply = <&vreg_l12b_1p8>;

Expand Down
17 changes: 9 additions & 8 deletions projects/ROCKNIX/devices/SM8550/patches/linux/0064-gpu-drm-panel-add-ar16-4inch-panel.patch
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,8 @@ Signed-off-by: danyi <mydanyi@users.noreply.github.com>
---
drivers/gpu/drm/panel/Kconfig | 14 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-ar16-4inch.c | 400 +++++++++++++++++++++++
3 files changed, 415 insertions(+)
drivers/gpu/drm/panel/panel-ar16-4inch.c | 401 +++++++++++++++++++++++
3 files changed, 416 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-ar16-4inch.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
Expand Down Expand Up @@ -58,7 +58,7 @@ new file mode 100644
index 0000000..141da42
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-ar16-4inch.c
@@ -0,0 +1,400 @@
@@ -0,0 +1,401 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * DRM driver for the AYANEO Pocket S Mini AR16 panel.
Expand Down Expand Up @@ -92,6 +92,7 @@ index 0000000..141da42
+ { .supply = "avdd" },
+ { .supply = "vci" },
+ { .supply = "vddio" },
+ { .supply = "avee" },
+};
+
+static inline struct ar16_4inch *to_ar16_4inch(struct drm_panel *panel)
Expand Down Expand Up @@ -385,9 +386,11 @@ index 0000000..141da42
+ struct ar16_4inch *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+ ctx = devm_drm_panel_alloc(dev, struct ar16_4inch, panel,
+ &ar16_4inch_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ if (IS_ERR(ctx))
+ return PTR_ERR(ctx);
+
+ ret = devm_regulator_bulk_get_const(dev,
+ ARRAY_SIZE(ar16_4inch_supplies),
Expand All @@ -413,8 +416,6 @@ index 0000000..141da42
+ MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+ drm_panel_init(&ctx->panel, dev, &ar16_4inch_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ ctx->panel.prepare_prev_first = true;
+
+ ret = drm_panel_of_backlight(&ctx->panel);
Expand Down
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