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* [PATCH 0/2] drm/panel: Add support for LG.Philips SW43101 DSI video mode panel
@ 2021-09-01 18:07 Yassine Oudjana
  2021-09-01 18:07 ` [PATCH 1/2] drm/panel: Add driver " Yassine Oudjana
  2021-09-01 18:07 ` [PATCH 2/2] dt-bindings: display: Add binding for LG.Philips SW43101 Yassine Oudjana
  0 siblings, 2 replies; 4+ messages in thread
From: Yassine Oudjana @ 2021-09-01 18:07 UTC (permalink / raw)
  To: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter, Rob Herring
  Cc: Yassine Oudjana, dri-devel, devicetree, phone-devel,
	~postmarketos/upstreaming, linux-kernel

This adds a driver for the LG.Philips SW43101 FHD (1080x1920) 58Hz OLED DSI
video mode panel, found on the Xiaomi Mi Note 2.

Yassine Oudjana (2):
  drm/panel: Add driver for LG.Philips SW43101 DSI video mode panel
  dt-bindings: display: Add binding for LG.Philips SW43101

 .../display/panel/lgphilips,sw43101.yaml      |  52 +++
 drivers/gpu/drm/panel/Kconfig                 |  10 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 .../gpu/drm/panel/panel-lgphilips-sw43101.c   | 331 ++++++++++++++++++
 4 files changed, 394 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml
 create mode 100644 drivers/gpu/drm/panel/panel-lgphilips-sw43101.c

-- 
2.33.0



^ permalink raw reply	[flat|nested] 4+ messages in thread

* [PATCH 1/2] drm/panel: Add driver for LG.Philips SW43101 DSI video mode panel
  2021-09-01 18:07 [PATCH 0/2] drm/panel: Add support for LG.Philips SW43101 DSI video mode panel Yassine Oudjana
@ 2021-09-01 18:07 ` Yassine Oudjana
  2021-09-01 18:07 ` [PATCH 2/2] dt-bindings: display: Add binding for LG.Philips SW43101 Yassine Oudjana
  1 sibling, 0 replies; 4+ messages in thread
From: Yassine Oudjana @ 2021-09-01 18:07 UTC (permalink / raw)
  To: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter, Rob Herring
  Cc: Yassine Oudjana, dri-devel, devicetree, phone-devel,
	~postmarketos/upstreaming, linux-kernel

Add a driver for the LG.Philips SW43101 FHD (1080x1920) OLED DSI video mode panel.
This driver has been generated using linux-mdss-dsi-panel-driver-generator.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
---
 drivers/gpu/drm/panel/Kconfig                 |  10 +
 drivers/gpu/drm/panel/Makefile                |   1 +
 .../gpu/drm/panel/panel-lgphilips-sw43101.c   | 331 ++++++++++++++++++
 3 files changed, 342 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-lgphilips-sw43101.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index beb581b96ecd..d8741c35bbfc 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -226,6 +226,16 @@ config DRM_PANEL_SAMSUNG_LD9040
 	depends on OF && SPI
 	select VIDEOMODE_HELPERS
 
+config DRM_PANEL_LGPHILIPS_SW43101
+	tristate "LG.Philips SW43101 DSI video mode panel"
+	depends on OF
+	depends on DRM_MIPI_DSI
+	depends on BACKLIGHT_CLASS_DEVICE
+	help
+	  Say Y here if you want to enable support for the LG.Philips SW43101 FHD
+	  (1080x1920) OLED DSI video mode panel found on the Xiaomi Mi Note 2.
+	  To compile this driver as a module, choose M here.
+
 config DRM_PANEL_LG_LB035Q02
 	tristate "LG LB035Q024573 RGB panel"
 	depends on GPIOLIB && OF && SPI
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index c8132050bcec..e79143ad14dd 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_DRM_PANEL_KHADAS_TS050) += panel-khadas-ts050.o
 obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o
 obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W) += panel-leadtek-ltk050h3146w.o
 obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o
+obj-$(CONFIG_DRM_PANEL_LGPHILIPS_SW43101) += panel-lgphilips-sw43101.o
 obj-$(CONFIG_DRM_PANEL_LG_LB035Q02) += panel-lg-lb035q02.o
 obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
 obj-$(CONFIG_DRM_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o
diff --git a/drivers/gpu/drm/panel/panel-lgphilips-sw43101.c b/drivers/gpu/drm/panel/panel-lgphilips-sw43101.c
new file mode 100644
index 000000000000..ca8acd7590d2
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-lgphilips-sw43101.c
@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * LG.Philips SW43101 OLED Panel driver
+ * Generated with linux-mdss-dsi-panel-driver-generator
+ *
+ * Copyright (c) 2020 Yassine Oudjana <y.oudjana@protonmail.com>
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+struct sw43101_device {
+	struct drm_panel panel;
+	struct mipi_dsi_device *dsi;
+	struct gpio_desc *reset_gpio;
+	bool prepared;
+};
+
+static inline
+struct sw43101_device *to_sw43101_device(struct drm_panel *panel)
+{
+	return container_of(panel, struct sw43101_device, panel);
+}
+
+#define dsi_dcs_write_seq(dsi, seq...) do {				\
+		static const u8 d[] = { seq };				\
+		int ret;						\
+		ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d));	\
+		if (ret < 0)						\
+			return ret;					\
+	} while (0)
+
+static void sw43101_reset(struct sw43101_device *ctx)
+{
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	usleep_range(10000, 11000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+	usleep_range(1000, 2000);
+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+	msleep(20);
+}
+
+static int sw43101_on(struct sw43101_device *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi;
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	dsi_dcs_write_seq(dsi, 0xb0, 0x5a);
+	usleep_range(1000, 2000);
+	dsi_dcs_write_seq(dsi, 0xb2, 0x13, 0x12, 0x40, 0xd0, 0xff, 0xff, 0x15);
+	dsi_dcs_write_seq(dsi, 0xe3, 0x01);
+	usleep_range(1000, 2000);
+	dsi_dcs_write_seq(dsi, 0xf3, 0x03, 0x00, 0x00);
+
+	ret = mipi_dsi_dcs_set_display_brightness(dsi, 0x0020);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set display brightness: %d\n", ret);
+		return ret;
+	}
+
+	dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
+	dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00);
+	dsi_dcs_write_seq(dsi, 0xb0, 0x00);
+	usleep_range(1000, 2000);
+
+	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to exit sleep mode: %d\n", ret);
+		return ret;
+	}
+	msleep(120);
+
+	ret = mipi_dsi_dcs_set_display_on(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set display on: %d\n", ret);
+		return ret;
+	}
+	msleep(20);
+
+	return 0;
+}
+
+static int sw43101_off(struct sw43101_device *ctx)
+{
+	struct mipi_dsi_device *dsi = ctx->dsi;
+	struct device *dev = &dsi->dev;
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_set_display_off(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set display off: %d\n", ret);
+		return ret;
+	}
+	usleep_range(2000, 3000);
+
+	ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
+		return ret;
+	}
+	msleep(128);
+
+	return 0;
+}
+
+static int sw43101_prepare(struct drm_panel *panel)
+{
+	struct sw43101_device *ctx = to_sw43101_device(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	if (ctx->prepared)
+		return 0;
+
+	sw43101_reset(ctx);
+
+	ret = sw43101_on(ctx);
+	if (ret < 0) {
+		dev_err(dev, "Failed to initialize panel: %d\n", ret);
+		gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+		return ret;
+	}
+
+	ctx->prepared = true;
+	return 0;
+}
+
+static int sw43101_unprepare(struct drm_panel *panel)
+{
+	struct sw43101_device *ctx = to_sw43101_device(panel);
+	struct device *dev = &ctx->dsi->dev;
+	int ret;
+
+	if (!ctx->prepared)
+		return 0;
+
+	ret = sw43101_off(ctx);
+	if (ret < 0)
+		dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
+
+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+
+	ctx->prepared = false;
+	return 0;
+}
+
+static const struct drm_display_mode sw43101_mode = {
+	.clock = (1080 + 56 + 8 + 60) * (1920 + 40 + 8 + 48) * 58 / 1000,
+	.hdisplay = 1080,
+	.hsync_start = 1080 + 56,
+	.hsync_end = 1080 + 56 + 8,
+	.htotal = 1080 + 56 + 8 + 60,
+	.vdisplay = 1920,
+	.vsync_start = 1920 + 40,
+	.vsync_end = 1920 + 40 + 8,
+	.vtotal = 1920 + 40 + 8 + 48,
+	.width_mm = 71,
+	.height_mm = 126,
+};
+
+static int sw43101_get_modes(struct drm_panel *panel,
+				     struct drm_connector *connector)
+{
+	struct drm_display_mode *mode;
+
+	mode = drm_mode_duplicate(connector->dev, &sw43101_mode);
+	if (!mode)
+		return -ENOMEM;
+
+	drm_mode_set_name(mode);
+
+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+	connector->display_info.width_mm = mode->width_mm;
+	connector->display_info.height_mm = mode->height_mm;
+	drm_mode_probed_add(connector, mode);
+
+	return 1;
+}
+
+static const struct drm_panel_funcs sw43101_panel_funcs = {
+	.prepare = sw43101_prepare,
+	.unprepare = sw43101_unprepare,
+	.get_modes = sw43101_get_modes,
+};
+
+static int sw43101_bl_update_status(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness = bl->props.brightness;
+	int ret;
+
+	if (bl->props.power != FB_BLANK_UNBLANK ||
+	    bl->props.fb_blank != FB_BLANK_UNBLANK ||
+	    bl->props.state & (BL_CORE_SUSPENDED | BL_CORE_FBBLANK))
+		brightness = 0;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness);
+	if (ret < 0)
+		return ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	return 0;
+}
+
+static int sw43101_bl_get_brightness(struct backlight_device *bl)
+{
+	struct mipi_dsi_device *dsi = bl_get_data(bl);
+	u16 brightness = bl->props.brightness;
+	int ret;
+
+	dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+	ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness);
+	if (ret < 0)
+		return ret;
+
+	dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+	return brightness & 0xff;
+}
+
+static const struct backlight_ops sw43101_bl_ops = {
+	.update_status = sw43101_bl_update_status,
+	.get_brightness = sw43101_bl_get_brightness,
+};
+
+static struct backlight_device *
+sw43101_create_backlight(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct backlight_properties props = {
+		.type = BACKLIGHT_RAW,
+		.brightness = 255,
+		.max_brightness = 255,
+	};
+
+	return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
+					      &sw43101_bl_ops, &props);
+}
+
+static int sw43101_probe(struct mipi_dsi_device *dsi)
+{
+	struct device *dev = &dsi->dev;
+	struct sw43101_device *ctx;
+	int ret;
+
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(ctx->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+				     "Failed to get reset-gpios\n");
+
+	ctx->dsi = dsi;
+	mipi_dsi_set_drvdata(dsi, ctx);
+
+	dsi->lanes = 4;
+	dsi->format = MIPI_DSI_FMT_RGB888;
+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
+	drm_panel_init(&ctx->panel, dev, &sw43101_panel_funcs,
+		       DRM_MODE_CONNECTOR_DSI);
+
+	ctx->panel.backlight = sw43101_create_backlight(dsi);
+	if (IS_ERR(ctx->panel.backlight))
+		return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
+				     "Failed to create backlight\n");
+
+	drm_panel_add(&ctx->panel);
+
+	ret = mipi_dsi_attach(dsi);
+	if (ret < 0) {
+		dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int sw43101_remove(struct mipi_dsi_device *dsi)
+{
+	struct sw43101_device *ctx = mipi_dsi_get_drvdata(dsi);
+	int ret;
+
+	ret = mipi_dsi_detach(dsi);
+	if (ret < 0)
+		dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
+
+	drm_panel_remove(&ctx->panel);
+
+	return 0;
+}
+
+static const struct of_device_id sw43101_of_match[] = {
+	{ .compatible = "lgphilips,sw43101" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, sw43101_of_match);
+
+static struct mipi_dsi_driver sw43101_driver = {
+	.probe = sw43101_probe,
+	.remove = sw43101_remove,
+	.driver = {
+		.name = "panel-lgphilips-sw43101",
+		.of_match_table = sw43101_of_match,
+	},
+};
+module_mipi_dsi_driver(sw43101_driver);
+
+MODULE_AUTHOR("Yassine Oudjana <y.oudjana@protonmail.com>");
+MODULE_DESCRIPTION("LG.Philips SW43101 DSI video mode panel driver");
+MODULE_LICENSE("GPL v2");
-- 
2.33.0



^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [PATCH 2/2] dt-bindings: display: Add binding for LG.Philips SW43101
  2021-09-01 18:07 [PATCH 0/2] drm/panel: Add support for LG.Philips SW43101 DSI video mode panel Yassine Oudjana
  2021-09-01 18:07 ` [PATCH 1/2] drm/panel: Add driver " Yassine Oudjana
@ 2021-09-01 18:07 ` Yassine Oudjana
  2021-09-07 18:33   ` Rob Herring
  1 sibling, 1 reply; 4+ messages in thread
From: Yassine Oudjana @ 2021-09-01 18:07 UTC (permalink / raw)
  To: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter, Rob Herring
  Cc: Yassine Oudjana, dri-devel, devicetree, phone-devel,
	~postmarketos/upstreaming, linux-kernel

Add a device tree binding for LG.Philips SW43101.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
---
 .../display/panel/lgphilips,sw43101.yaml      | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml b/Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml
new file mode 100644
index 000000000000..da049e9f244e
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: BSD-3-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/lgphilips,sw43101.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LG.Philips SW43101 1080x1920 OLED panel
+
+maintainers:
+  - Yassine Oudjana <y.oudjana@protonmail.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: lgphilips,sw43101
+
+  port: true
+  reg: true
+  reset-gpios: true
+
+required:
+  - compatible
+  - reg
+  - reset-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "lgphilips,sw43101";
+            reg = <0>;
+
+            reset-gpios = <&msmgpio 8 GPIO_ACTIVE_LOW>;
+
+            port {
+                panel_in: endpoint {
+                    remote-endpoint = <&dsi_out>;
+                };
+            };
+        };
+    };
+
+...
-- 
2.33.0



^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH 2/2] dt-bindings: display: Add binding for LG.Philips SW43101
  2021-09-01 18:07 ` [PATCH 2/2] dt-bindings: display: Add binding for LG.Philips SW43101 Yassine Oudjana
@ 2021-09-07 18:33   ` Rob Herring
  0 siblings, 0 replies; 4+ messages in thread
From: Rob Herring @ 2021-09-07 18:33 UTC (permalink / raw)
  To: Yassine Oudjana
  Cc: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter,
	dri-devel, devicetree, phone-devel, ~postmarketos/upstreaming,
	linux-kernel

On Wed, Sep 01, 2021 at 06:07:30PM +0000, Yassine Oudjana wrote:
> Add a device tree binding for LG.Philips SW43101.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
> ---
>  .../display/panel/lgphilips,sw43101.yaml      | 52 +++++++++++++++++++
>  1 file changed, 52 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml b/Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml
> new file mode 100644
> index 000000000000..da049e9f244e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/lgphilips,sw43101.yaml
> @@ -0,0 +1,52 @@
> +# SPDX-License-Identifier: BSD-3-Clause

Not the right license(s). checkpatch.pl will tell you.

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/lgphilips,sw43101.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LG.Philips SW43101 1080x1920 OLED panel
> +
> +maintainers:
> +  - Yassine Oudjana <y.oudjana@protonmail.com>
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: lgphilips,sw43101

Looks like this can be added to panel-simple-dsi.yaml instead. Unless it 
has more than 1 power rail as you didn't document any.

> +
> +  port: true
> +  reg: true
> +  reset-gpios: true
> +
> +required:
> +  - compatible
> +  - reg
> +  - reset-gpios
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    dsi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        panel@0 {
> +            compatible = "lgphilips,sw43101";
> +            reg = <0>;
> +
> +            reset-gpios = <&msmgpio 8 GPIO_ACTIVE_LOW>;
> +
> +            port {
> +                panel_in: endpoint {
> +                    remote-endpoint = <&dsi_out>;
> +                };
> +            };
> +        };
> +    };
> +
> +...
> -- 
> 2.33.0
> 
> 
> 

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-09-07 18:33 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-01 18:07 [PATCH 0/2] drm/panel: Add support for LG.Philips SW43101 DSI video mode panel Yassine Oudjana
2021-09-01 18:07 ` [PATCH 1/2] drm/panel: Add driver " Yassine Oudjana
2021-09-01 18:07 ` [PATCH 2/2] dt-bindings: display: Add binding for LG.Philips SW43101 Yassine Oudjana
2021-09-07 18:33   ` Rob Herring

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