diff --git a/arch/arm/boot/dts/overlays/Makefile b/arch/arm/boot/dts/overlays/Makefile
index 261dfb885a0362..3e9880a1b0436b 100644
--- a/arch/arm/boot/dts/overlays/Makefile
+++ b/arch/arm/boot/dts/overlays/Makefile
@@ -337,6 +337,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
vc4-kms-dpi-hyperpixel4sq.dtbo \
vc4-kms-dpi-panel.dtbo \
vc4-kms-dsi-7inch.dtbo \
+ vc4-kms-dsi-edatec-panel-101c.dtbo \
vc4-kms-dsi-generic.dtbo \
vc4-kms-dsi-ili79600-10-1inch.dtbo \
vc4-kms-dsi-ili9881-5inch.dtbo \
diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index 50d0b849ae21e7..b5b4ce4b0e32e8 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -5790,6 +5790,18 @@ Params: sizex Touchscreen size x (default 800)
the default DSI1 and i2c_csi_dsi).
+Name: vc4-kms-dsi-edatec-panel-101c
+Info: Enable the edatec DSI 10" screen.
+ support ed-dispr-101c.
+ support ed-dispr5-101c.
+ support ed-dispr4-101c.
+Load: dtoverlay=vc4-kms-dsi-edatec-panel-101c,=
+Params: rotation Display rotation {0,90,180,270} (default 270)
+ interrupt GPIO pin for interrupt signal(default 16)
+ i2c1 Use i2c-1 and the default DSI1
+ i2c10 Use i2c-10 and the default DSI1
+
+
Name: vc4-kms-dsi-generic
Info: Enable a generic DSI display under KMS.
Default timings are for a 840x480 RGB888 panel.
diff --git a/arch/arm/boot/dts/overlays/vc4-kms-dsi-edatec-panel-101c-overlay.dts b/arch/arm/boot/dts/overlays/vc4-kms-dsi-edatec-panel-101c-overlay.dts
new file mode 100644
index 00000000000000..6b7a799e5a4b4c
--- /dev/null
+++ b/arch/arm/boot/dts/overlays/vc4-kms-dsi-edatec-panel-101c-overlay.dts
@@ -0,0 +1,117 @@
+/dts-v1/;
+/plugin/;
+
+#include
+
+/ {
+ compatible = "brcm,bcm2835";
+
+ fragment@0 {
+ target-path = "/";
+ __overlay__ {
+ vdd_lcd: fixedregulator_lcd {
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_lcd";
+
+ gpios = <®_display 4 GPIO_ACTIVE_HIGH>;
+ startup-delay-us = <5000>;
+ regulator-boot-on;
+ enable-active-high;
+ };
+ };
+ };
+
+ fragment@1 {
+ target = <&dsi1>;
+ __overlay__{
+ status = "okay";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port {
+ dsi_out_port:endpoint {
+ remote-endpoint = <&panel_dsi_port>;
+ };
+ };
+
+ ili9881c:ili9881c@0 {
+ compatible = "rzw,t101p136cq";
+ status = "okay";
+ reg = <0>;
+
+ reset-gpios = <®_display 2 GPIO_ACTIVE_LOW>;
+ backlight = <®_display>;
+ power-supply = <&vdd_lcd>;
+ rotation = <270>;
+
+ port {
+ panel_dsi_port: endpoint {
+ remote-endpoint = <&dsi_out_port>;
+ };
+ };
+ };
+ };
+ };
+
+ fragment@2 {
+ target = <&i2c0if>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@3 {
+ target = <&i2c0mux>;
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ fragment@4 {
+ target = <&gpio>;
+ __overlay__ {
+ gt928_pins: gt928_pins {
+ brcm,pins = <16>;
+ brcm,function = <0>;
+ brcm,pull = <2>;
+ };
+ };
+ };
+
+ i2c_frag: fragment@5 {
+ target = <&i2c_csi_dsi>;
+ __overlay__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ reg_display: reg_display@27 {
+ compatible = "edatec,disp-regulator";
+ reg = <0x27>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ gt928:gt928@14 {
+ compatible = "goodix,gt928";
+ reg = <0x14>;
+ pinctrl-names = "default";
+ pinctrl-0 = <>928_pins>;
+
+ reset-gpios = <®_display 3 GPIO_ACTIVE_HIGH>;
+ interrupt-parent = <&gpio>;
+ interrupts = <16 2>;
+ irq-gpios = <&gpio 16 GPIO_ACTIVE_HIGH>;
+ };
+ };
+ };
+
+ __overrides__ {
+ i2c1 = <&i2c_frag>, "target:0=",<&i2c1>,
+ <0>, "-3-4+5";
+ i2c10 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>;
+ interrupt = <>928_pins>, "brcm,pins:0",
+ <>928>, "interrupts:0",
+ <>928>, "irq-gpios:4";
+ rotation = <&ili9881c>, "rotation:0";
+ };
+};
diff --git a/arch/arm64/configs/bcm2711_defconfig b/arch/arm64/configs/bcm2711_defconfig
index 3ca12507d0f683..db3929eb4e67cc 100644
--- a/arch/arm64/configs/bcm2711_defconfig
+++ b/arch/arm64/configs/bcm2711_defconfig
@@ -861,6 +861,7 @@ CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY=m
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_V2=m
CONFIG_REGULATOR_WAVESHARE_TOUCHSCREEN=m
+CONFIG_REGULATOR_EDATEC_10INCH=m
CONFIG_RC_CORE=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_LIRC=y
diff --git a/arch/arm64/configs/bcm2711_rt_defconfig b/arch/arm64/configs/bcm2711_rt_defconfig
index a90c06af912be9..b90ad9ab72ab76 100644
--- a/arch/arm64/configs/bcm2711_rt_defconfig
+++ b/arch/arm64/configs/bcm2711_rt_defconfig
@@ -860,6 +860,7 @@ CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY=m
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_V2=m
CONFIG_REGULATOR_WAVESHARE_TOUCHSCREEN=m
+CONFIG_REGULATOR_EDATEC_10INCH=m
CONFIG_RC_CORE=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_LIRC=y
diff --git a/arch/arm64/configs/bcm2712_defconfig b/arch/arm64/configs/bcm2712_defconfig
index 1d27063139c6d6..672cd4e17de299 100644
--- a/arch/arm64/configs/bcm2712_defconfig
+++ b/arch/arm64/configs/bcm2712_defconfig
@@ -863,6 +863,7 @@ CONFIG_REGULATOR_GPIO=y
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY=m
CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_V2=m
CONFIG_REGULATOR_WAVESHARE_TOUCHSCREEN=m
+CONFIG_REGULATOR_EDATEC_10INCH=m
CONFIG_RC_CORE=y
CONFIG_BPF_LIRC_MODE2=y
CONFIG_LIRC=y
diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
index fe8964d9f8f04f..3346bfeb5e5a34 100644
--- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
+++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c
@@ -2230,6 +2230,211 @@ static const struct ili9881c_instr bsd1218_a101kl68_init[] = {
ILI9881C_COMMAND_INSTR(0xd3, 0x3f),
};
+static const struct ili9881c_instr t101p136cq_init[] = {
+ ILI9881C_SWITCH_PAGE_INSTR(3),
+ ILI9881C_COMMAND_INSTR(0x01, 0x00),
+ ILI9881C_COMMAND_INSTR(0x02, 0x00),
+ ILI9881C_COMMAND_INSTR(0x03, 0x53),
+ ILI9881C_COMMAND_INSTR(0x04, 0x53),
+ ILI9881C_COMMAND_INSTR(0x05, 0x13),
+ ILI9881C_COMMAND_INSTR(0x06, 0x04),
+ ILI9881C_COMMAND_INSTR(0x07, 0x02),
+ ILI9881C_COMMAND_INSTR(0x08, 0x02),
+ ILI9881C_COMMAND_INSTR(0x09, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0C, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0D, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0E, 0x00),
+ ILI9881C_COMMAND_INSTR(0x0F, 0x00),
+ ILI9881C_COMMAND_INSTR(0x10, 0x00),
+ ILI9881C_COMMAND_INSTR(0x11, 0x00),
+ ILI9881C_COMMAND_INSTR(0x12, 0x00),
+ ILI9881C_COMMAND_INSTR(0x13, 0x00),
+ ILI9881C_COMMAND_INSTR(0x14, 0x00),
+ ILI9881C_COMMAND_INSTR(0x15, 0x05),
+ ILI9881C_COMMAND_INSTR(0x16, 0x05),
+ ILI9881C_COMMAND_INSTR(0x17, 0x03),
+ ILI9881C_COMMAND_INSTR(0x18, 0x03),
+ ILI9881C_COMMAND_INSTR(0x19, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1C, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1D, 0x00),
+ ILI9881C_COMMAND_INSTR(0x1E, 0xC0),
+ ILI9881C_COMMAND_INSTR(0x1F, 0x80),
+ ILI9881C_COMMAND_INSTR(0x20, 0x02),
+ ILI9881C_COMMAND_INSTR(0x21, 0x09),
+ ILI9881C_COMMAND_INSTR(0x22, 0x00),
+ ILI9881C_COMMAND_INSTR(0x23, 0x00),
+ ILI9881C_COMMAND_INSTR(0x24, 0x00),
+ ILI9881C_COMMAND_INSTR(0x25, 0x00),
+ ILI9881C_COMMAND_INSTR(0x26, 0x00),
+ ILI9881C_COMMAND_INSTR(0x27, 0x00),
+ ILI9881C_COMMAND_INSTR(0x28, 0x55),
+ ILI9881C_COMMAND_INSTR(0x29, 0x03),
+ ILI9881C_COMMAND_INSTR(0x2A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x2B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x2C, 0x00),
+ ILI9881C_COMMAND_INSTR(0x2D, 0x00),
+ ILI9881C_COMMAND_INSTR(0x2E, 0x00),
+ ILI9881C_COMMAND_INSTR(0x2F, 0x00),
+ ILI9881C_COMMAND_INSTR(0x30, 0x00),
+ ILI9881C_COMMAND_INSTR(0x31, 0x00),
+ ILI9881C_COMMAND_INSTR(0x32, 0x00),
+ ILI9881C_COMMAND_INSTR(0x33, 0x00),
+ ILI9881C_COMMAND_INSTR(0x34, 0x00),
+ ILI9881C_COMMAND_INSTR(0x35, 0x00),
+ ILI9881C_COMMAND_INSTR(0x36, 0x00),
+ ILI9881C_COMMAND_INSTR(0x37, 0x00),
+ ILI9881C_COMMAND_INSTR(0x38, 0x3C),
+ ILI9881C_COMMAND_INSTR(0x39, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3A, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3B, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3C, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3D, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3E, 0x00),
+ ILI9881C_COMMAND_INSTR(0x3F, 0x00),
+ ILI9881C_COMMAND_INSTR(0x40, 0x00),
+ ILI9881C_COMMAND_INSTR(0x41, 0x00),
+ ILI9881C_COMMAND_INSTR(0x42, 0x00),
+ ILI9881C_COMMAND_INSTR(0x43, 0x00),
+ ILI9881C_COMMAND_INSTR(0x44, 0x00),
+ ILI9881C_COMMAND_INSTR(0x50, 0x01),
+ ILI9881C_COMMAND_INSTR(0x51, 0x23),
+ ILI9881C_COMMAND_INSTR(0x52, 0x45),
+ ILI9881C_COMMAND_INSTR(0x53, 0x67),
+ ILI9881C_COMMAND_INSTR(0x54, 0x89),
+ ILI9881C_COMMAND_INSTR(0x55, 0xAB),
+ ILI9881C_COMMAND_INSTR(0x56, 0x01),
+ ILI9881C_COMMAND_INSTR(0x57, 0x23),
+ ILI9881C_COMMAND_INSTR(0x58, 0x45),
+ ILI9881C_COMMAND_INSTR(0x59, 0x67),
+ ILI9881C_COMMAND_INSTR(0x5A, 0x89),
+ ILI9881C_COMMAND_INSTR(0x5B, 0xAB),
+ ILI9881C_COMMAND_INSTR(0x5C, 0xCD),
+ ILI9881C_COMMAND_INSTR(0x5D, 0xEF),
+ ILI9881C_COMMAND_INSTR(0x5E, 0x01),
+ ILI9881C_COMMAND_INSTR(0x5F, 0x0A),
+ ILI9881C_COMMAND_INSTR(0x60, 0x02),
+ ILI9881C_COMMAND_INSTR(0x61, 0x02),
+ ILI9881C_COMMAND_INSTR(0x62, 0x08),
+ ILI9881C_COMMAND_INSTR(0x63, 0x15),
+ ILI9881C_COMMAND_INSTR(0x64, 0x14),
+ ILI9881C_COMMAND_INSTR(0x65, 0x02),
+ ILI9881C_COMMAND_INSTR(0x66, 0x11),
+ ILI9881C_COMMAND_INSTR(0x67, 0x10),
+ ILI9881C_COMMAND_INSTR(0x68, 0x02),
+ ILI9881C_COMMAND_INSTR(0x69, 0x0F),
+ ILI9881C_COMMAND_INSTR(0x6A, 0x0E),
+ ILI9881C_COMMAND_INSTR(0x6B, 0x02),
+ ILI9881C_COMMAND_INSTR(0x6C, 0x0D),
+ ILI9881C_COMMAND_INSTR(0x6D, 0x0C),
+ ILI9881C_COMMAND_INSTR(0x6E, 0x06),
+ ILI9881C_COMMAND_INSTR(0x6F, 0x02),
+ ILI9881C_COMMAND_INSTR(0x70, 0x02),
+ ILI9881C_COMMAND_INSTR(0x71, 0x02),
+ ILI9881C_COMMAND_INSTR(0x72, 0x02),
+ ILI9881C_COMMAND_INSTR(0x73, 0x02),
+ ILI9881C_COMMAND_INSTR(0x74, 0x02),
+ ILI9881C_COMMAND_INSTR(0x75, 0x0A),
+ ILI9881C_COMMAND_INSTR(0x76, 0x02),
+ ILI9881C_COMMAND_INSTR(0x77, 0x02),
+ ILI9881C_COMMAND_INSTR(0x78, 0x06),
+ ILI9881C_COMMAND_INSTR(0x79, 0x15),
+ ILI9881C_COMMAND_INSTR(0x7A, 0x14),
+ ILI9881C_COMMAND_INSTR(0x7B, 0x02),
+ ILI9881C_COMMAND_INSTR(0x7C, 0x10),
+ ILI9881C_COMMAND_INSTR(0x7D, 0x11),
+ ILI9881C_COMMAND_INSTR(0x7E, 0x02),
+ ILI9881C_COMMAND_INSTR(0x7F, 0x0C),
+ ILI9881C_COMMAND_INSTR(0x80, 0x0D),
+ ILI9881C_COMMAND_INSTR(0x81, 0x02),
+ ILI9881C_COMMAND_INSTR(0x82, 0x0E),
+ ILI9881C_COMMAND_INSTR(0x83, 0x0F),
+ ILI9881C_COMMAND_INSTR(0x84, 0x08),
+ ILI9881C_COMMAND_INSTR(0x85, 0x02),
+ ILI9881C_COMMAND_INSTR(0x86, 0x02),
+ ILI9881C_COMMAND_INSTR(0x87, 0x02),
+ ILI9881C_COMMAND_INSTR(0x88, 0x02),
+ ILI9881C_COMMAND_INSTR(0x89, 0x02),
+ ILI9881C_COMMAND_INSTR(0x8A, 0x02),
+
+ ILI9881C_SWITCH_PAGE_INSTR(4),
+ ILI9881C_COMMAND_INSTR(0x3B, 0x98),
+ ILI9881C_COMMAND_INSTR(0x6C, 0x15),
+ ILI9881C_COMMAND_INSTR(0x6E, 0x30),
+ ILI9881C_COMMAND_INSTR(0x6F, 0x45),
+ ILI9881C_COMMAND_INSTR(0x8D, 0x1F),
+ ILI9881C_COMMAND_INSTR(0x87, 0xBA),
+ ILI9881C_COMMAND_INSTR(0x26, 0x76),
+ ILI9881C_COMMAND_INSTR(0xB2, 0xD1),
+ ILI9881C_COMMAND_INSTR(0x88, 0x0B),
+ ILI9881C_COMMAND_INSTR(0x21, 0xB0),
+ ILI9881C_COMMAND_INSTR(0x35, 0x17),
+ ILI9881C_COMMAND_INSTR(0x30, 0x01),
+ ILI9881C_COMMAND_INSTR(0x31, 0x75),
+ ILI9881C_COMMAND_INSTR(0xB5, 0x07),
+ ILI9881C_COMMAND_INSTR(0x8A, 0xD8),
+ ILI9881C_COMMAND_INSTR(0x3A, 0x8A),
+
+ ILI9881C_SWITCH_PAGE_INSTR(1),
+ ILI9881C_COMMAND_INSTR(0x22, 0x0A),
+ ILI9881C_COMMAND_INSTR(0x31, 0x09),
+ ILI9881C_COMMAND_INSTR(0x40, 0x33),
+ ILI9881C_COMMAND_INSTR(0x42, 0x44),
+ ILI9881C_COMMAND_INSTR(0x53, 0x3E),
+ ILI9881C_COMMAND_INSTR(0x55, 0x45),
+ ILI9881C_COMMAND_INSTR(0x56, 0x00),
+ ILI9881C_COMMAND_INSTR(0x50, 0x95),
+ ILI9881C_COMMAND_INSTR(0x51, 0x95),
+ ILI9881C_COMMAND_INSTR(0x60, 0x09),
+ ILI9881C_COMMAND_INSTR(0x2E, 0xC8),
+ ILI9881C_COMMAND_INSTR(0x35, 0x07),
+ ILI9881C_COMMAND_INSTR(0x63, 0x00),
+ ILI9881C_COMMAND_INSTR(0xA0, 0x00),
+ ILI9881C_COMMAND_INSTR(0xA1, 0x14),
+ ILI9881C_COMMAND_INSTR(0xA2, 0x24),
+ ILI9881C_COMMAND_INSTR(0xA3, 0x17),
+ ILI9881C_COMMAND_INSTR(0xA4, 0x1A),
+ ILI9881C_COMMAND_INSTR(0xA5, 0x2C),
+ ILI9881C_COMMAND_INSTR(0xA6, 0x20),
+ ILI9881C_COMMAND_INSTR(0xA7, 0x1F),
+ ILI9881C_COMMAND_INSTR(0xA8, 0x81),
+ ILI9881C_COMMAND_INSTR(0xA9, 0x1E),
+ ILI9881C_COMMAND_INSTR(0xAA, 0x2A),
+ ILI9881C_COMMAND_INSTR(0xAB, 0x71),
+ ILI9881C_COMMAND_INSTR(0xAC, 0x19),
+ ILI9881C_COMMAND_INSTR(0xAD, 0x17),
+ ILI9881C_COMMAND_INSTR(0xAE, 0x4C),
+ ILI9881C_COMMAND_INSTR(0xAF, 0x1F),
+ ILI9881C_COMMAND_INSTR(0xB0, 0x26),
+ ILI9881C_COMMAND_INSTR(0xB1, 0x4D),
+ ILI9881C_COMMAND_INSTR(0xB2, 0x5D),
+ ILI9881C_COMMAND_INSTR(0xB3, 0x3F),
+ ILI9881C_COMMAND_INSTR(0xB7, 0x03),
+ ILI9881C_COMMAND_INSTR(0xC0, 0x00),
+ ILI9881C_COMMAND_INSTR(0xC1, 0x18),
+ ILI9881C_COMMAND_INSTR(0xC2, 0x24),
+ ILI9881C_COMMAND_INSTR(0xC3, 0x0E),
+ ILI9881C_COMMAND_INSTR(0xC4, 0x11),
+ ILI9881C_COMMAND_INSTR(0xC5, 0x24),
+ ILI9881C_COMMAND_INSTR(0xC6, 0x1A),
+ ILI9881C_COMMAND_INSTR(0xC7, 0x1E),
+ ILI9881C_COMMAND_INSTR(0xC8, 0x76),
+ ILI9881C_COMMAND_INSTR(0xC9, 0x1B),
+ ILI9881C_COMMAND_INSTR(0xCA, 0x27),
+ ILI9881C_COMMAND_INSTR(0xCB, 0x64),
+ ILI9881C_COMMAND_INSTR(0xCC, 0x19),
+ ILI9881C_COMMAND_INSTR(0xCD, 0x18),
+ ILI9881C_COMMAND_INSTR(0xCE, 0x4A),
+ ILI9881C_COMMAND_INSTR(0xCF, 0x20),
+ ILI9881C_COMMAND_INSTR(0xD0, 0x28),
+ ILI9881C_COMMAND_INSTR(0xD1, 0x4A),
+ ILI9881C_COMMAND_INSTR(0xD2, 0x5C),
+ ILI9881C_COMMAND_INSTR(0xD3, 0x3F),
+};
+
static inline struct ili9881c *panel_to_ili9881c(struct drm_panel *panel)
{
return container_of(panel, struct ili9881c, panel);
@@ -2511,6 +2716,23 @@ static const struct drm_display_mode bsd1218_a101kl68_default_mode = {
.height_mm = 170,
};
+static const struct drm_display_mode t101p136cq_mode = {
+ .clock = 78086,
+
+ .hdisplay = 800,
+ .hsync_start = 800 + 120,
+ .hsync_end = 800 + 120 + 20,
+ .htotal = 800 + 120 + 20 + 40,
+
+ .vdisplay = 1280,
+ .vsync_start = 1280 + 16,
+ .vsync_end = 1280 + 16 + 8,
+ .vtotal = 1280 + 16 + 8 + 24,
+
+ .width_mm = 135,
+ .height_mm = 216,
+};
+
static int ili9881c_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
@@ -2719,6 +2941,14 @@ static const struct ili9881c_desc bsd1218_a101kl68_desc = {
.lanes = 4,
};
+static const struct ili9881c_desc t101p136cq_desc = {
+ .init = t101p136cq_init,
+ .init_length = ARRAY_SIZE(t101p136cq_init),
+ .mode = &t101p136cq_mode,
+ .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM,
+ .lanes = 2,
+};
+
static const struct of_device_id ili9881c_of_match[] = {
{ .compatible = "bananapi,lhr050h41", .data = &lhr050h41_desc },
{ .compatible = "bestar,bsd1218-a101kl68", .data = &bsd1218_a101kl68_desc },
@@ -2731,6 +2961,7 @@ static const struct of_device_id ili9881c_of_match[] = {
{ .compatible = "nwe,nwe080", .data = &nwe080_desc },
{ .compatible = "raspberrypi,dsi-5inch", &rpi_5inch_desc },
{ .compatible = "raspberrypi,dsi-7inch", &rpi_7inch_desc },
+ { .compatible = "rzw,t101p136cq", .data = &t101p136cq_desc },
{ }
};
MODULE_DEVICE_TABLE(of, ili9881c_of_match);
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index b6ffd0d6ede856..1d701b77647a4b 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -1828,4 +1828,21 @@ config REGULATOR_QCOM_LABIBB
boost regulator and IBB can be used as a negative boost regulator
for LCD display panel.
+config REGULATOR_EDATEC_10INCH
+ tristate "EDATEC 10INCH regulator support"
+ depends on BACKLIGHT_CLASS_DEVICE
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver provides support for controlling the panel's power supply,
+ including the necessary voltage and current regulation for proper
+ backlight and LCD operation.
+
+ The driver communicates with the regulator hardware via the I2C bus.
+ Configuration is done through the Device Tree. You will need to enable
+ the appropriate Device Tree overlay or add the necessary node to your
+ Device Tree source file to make use of this driver.
+
+ Say Y or M here if your system uses an EDATEC 10-inch display panel.
+ Otherwise, say N.
endif
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index b0b8fd27799269..910e15a1b9d426 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -211,5 +211,6 @@ obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o
obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
+obj-$(CONFIG_REGULATOR_EDATEC_10INCH) += edatec-panel-regulator.o
ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/drivers/regulator/edatec-panel-regulator.c b/drivers/regulator/edatec-panel-regulator.c
new file mode 100644
index 00000000000000..6396ad78e9ce37
--- /dev/null
+++ b/drivers/regulator/edatec-panel-regulator.c
@@ -0,0 +1,284 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2026 EDATEC
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#define REG_PWM 0x01
+#define REG_PWR 0x03
+#define REG_OUTPUT 0x0A
+#define REG_BACKLIGHT_EN 0x12
+
+#define CMD_FW_VERSION 0xE1
+
+enum gpio_signals {
+ PIN_LCD_BL_EN,
+ PIN_LCD_BL_PWM,
+ PIN_LCD_RST,
+ PIN_TP_RST,
+ PIN_LCD_VDD_EN,
+ NUM_GPIO
+};
+
+struct ed_regulator {
+ struct mutex lock;
+ struct regmap *regmap;
+ struct gpio_chip gc;
+ struct i2c_client *client;
+ u8 shadow_reg;
+};
+
+static const struct regmap_config ed_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .disable_locking = 1,
+ .max_register = REG_BACKLIGHT_EN,
+ .cache_type = REGCACHE_RBTREE,
+};
+
+static int ed_update_status(struct backlight_device *bl)
+{
+ struct backlight_properties *props = &(bl->props);
+ struct ed_regulator *regulator = bl_get_data(bl);
+ struct regmap *regmap = regulator->regmap;
+ int brightness = backlight_get_brightness(bl);
+ int bl_power = props->power;
+ int ret;
+
+ mutex_lock(®ulator->lock);
+
+ if (bl_power == 1 || bl_power == 4) {
+ ret = regmap_write(regmap, REG_PWR, bl_power);
+ } else {
+ ret = regmap_write(regmap, REG_PWM, brightness);
+ }
+
+ mutex_unlock(®ulator->lock);
+
+ return ret;
+}
+
+static const struct backlight_ops ed_bl = {
+ .update_status = ed_update_status,
+};
+
+static int ed_gpio_set(struct gpio_chip *gc, unsigned int offset, int value)
+{
+ struct ed_regulator *regulator = gpiochip_get_data(gc);
+ struct i2c_client *client = regulator->client;
+ struct i2c_msg msgs[1];
+ u8 mask = BIT(offset);
+ u8 buf[2];
+ int ret;
+
+ if (offset >= NUM_GPIO)
+ return -EIO;
+
+ mutex_lock(®ulator->lock);
+
+ if (value)
+ regulator->shadow_reg |= mask;
+ else
+ regulator->shadow_reg &= ~mask;
+
+ buf[0] = REG_OUTPUT;
+ buf[1] = regulator->shadow_reg;
+
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = sizeof(buf);
+ msgs[0].buf = buf;
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs)) {
+ ret = -EIO;
+ }
+ mutex_unlock(®ulator->lock);
+
+ return ret;
+}
+
+static int ed_gpio_get(struct gpio_chip *gc, unsigned int offset)
+{
+ struct ed_regulator *regulator = gpiochip_get_data(gc);
+ int val;
+
+ if (offset >= NUM_GPIO)
+ return -EIO;
+
+ mutex_lock(®ulator->lock);
+ if (regulator->shadow_reg & BIT(offset))
+ val = 1;
+ else
+ val = 0;
+ mutex_unlock(®ulator->lock);
+
+ return val;
+}
+
+static int ed_direction_input(struct gpio_chip *gc, unsigned int offset)
+{
+ return -EOPNOTSUPP;
+}
+
+static int ed_direction_output(struct gpio_chip *gc, unsigned int offset, int value)
+{
+ ed_gpio_set(gc, offset, value);
+ return 0;
+}
+
+static int ed_firmware_version(struct i2c_client *i2c)
+{
+ struct i2c_msg msgs[1];
+ u8 addr_buf[1] = { CMD_FW_VERSION };
+ u8 data_buf[16] = { 0 };
+ int ret;
+
+ msgs[0].addr = i2c->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = 1;
+ msgs[0].buf = addr_buf;
+
+ ret = i2c_transfer(i2c->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return -EIO;
+
+ usleep_range(200, 300);
+
+ /* Read data from register */
+ msgs[0].addr = i2c->addr;
+ msgs[0].flags = I2C_M_RD;
+ msgs[0].len = 16;
+ msgs[0].buf = data_buf;
+
+ ret = i2c_transfer(i2c->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return -EIO;
+
+ dev_info(&i2c->dev, "Firmware version: %s\n", data_buf);
+
+ return 0;
+}
+
+/*
+ * I2C driver interface functions
+ */
+static int ed_i2c_probe(struct i2c_client *i2c)
+{
+ struct backlight_properties props = { };
+ struct backlight_device *bl;
+ struct ed_regulator *regulator;
+ struct regmap *regmap;
+ int ret;
+
+ regulator = devm_kzalloc(&i2c->dev, sizeof(*regulator), GFP_KERNEL);
+ if (!regulator)
+ return -ENOMEM;
+
+ ed_firmware_version(i2c);
+
+ regulator->client = i2c;
+ mutex_init(®ulator->lock);
+ regulator->shadow_reg = 0;
+ i2c_set_clientdata(i2c, regulator);
+
+ regmap = devm_regmap_init_i2c(i2c, &ed_regmap_config);
+ if (IS_ERR(regmap)) {
+ ret = PTR_ERR(regmap);
+ dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
+ ret);
+ goto error;
+ }
+
+ regmap_write(regmap, REG_BACKLIGHT_EN, 0x01);
+
+ props.type = BACKLIGHT_RAW;
+ props.max_brightness = 0xff;
+ props.brightness = 0xff;
+
+ regulator->regmap = regmap;
+ bl = devm_backlight_device_register(&i2c->dev, dev_name(&i2c->dev),
+ &i2c->dev, regulator, &ed_bl, &props);
+ if (IS_ERR(bl)) {
+ ret = PTR_ERR(bl);
+ goto error;
+ }
+
+ bl->props.brightness = 0xff;
+
+ regulator->gc.parent = &i2c->dev;
+ regulator->gc.label = i2c->name;
+ regulator->gc.owner = THIS_MODULE;
+ regulator->gc.base = -1;
+ regulator->gc.ngpio = NUM_GPIO;
+
+ regulator->gc.set = ed_gpio_set;
+ regulator->gc.get = ed_gpio_get;
+ regulator->gc.direction_input = ed_direction_input;
+ regulator->gc.direction_output = ed_direction_output;
+ regulator->gc.can_sleep = true;
+
+ ret = devm_gpiochip_add_data(&i2c->dev, ®ulator->gc, regulator);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to create gpiochip: %d\n", ret);
+ goto error;
+ }
+
+ return 0;
+
+error:
+ mutex_destroy(®ulator->lock);
+
+ return ret;
+}
+
+static void ed_i2c_remove(struct i2c_client *client)
+{
+ struct ed_regulator *regulator = i2c_get_clientdata(client);
+
+ mutex_destroy(®ulator->lock);
+}
+
+static void ed_i2c_shutdown(struct i2c_client *client)
+{
+ struct ed_regulator *regulator = i2c_get_clientdata(client);
+
+ regmap_write(regulator->regmap, REG_BACKLIGHT_EN, 0);
+ regmap_write(regulator->regmap, REG_OUTPUT, 0);
+}
+
+static const struct of_device_id ed_dt_ids[] = {
+ { .compatible = "edatec,disp-regulator" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, ed_dt_ids);
+
+static struct i2c_driver ed_regulator_driver = {
+ .driver = {
+ .name = "edatec_disp_101c",
+ .of_match_table = of_match_ptr(ed_dt_ids),
+ },
+ .probe = ed_i2c_probe,
+ .remove = ed_i2c_remove,
+ .shutdown = ed_i2c_shutdown,
+};
+
+module_i2c_driver(ed_regulator_driver);
+
+MODULE_AUTHOR("EDATEC ");
+MODULE_DESCRIPTION("EDATEC TFT LCD panel regulator driver");
+MODULE_LICENSE("GPL v2");