* [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings
@ 2023-02-20 12:12 Jianhua Lu
2023-02-20 12:12 ` [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523 Jianhua Lu
` (2 more replies)
0 siblings, 3 replies; 9+ messages in thread
From: Jianhua Lu @ 2023-02-20 12:12 UTC (permalink / raw)
To: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter,
Rob Herring, Krzysztof Kozlowski
Cc: dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming,
phone-devel, Jianhua Lu
Novatek NT36523 is a display driver IC used to drive DSI panels.
Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
---
Changes in v2:
- Drop unnecessary description
- dsi0 -> dsi
- Correct indentation
.../display/panel/novatek,nt36523.yaml | 95 +++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
new file mode 100644
index 000000000000..544c3c6e568b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/novatek,nt36523.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Novatek NT36523 based DSI display Panels
+
+maintainers:
+ - Jianhua Lu <lujianhua000@gmail.com>
+
+description: |
+ The Novatek NT36523 is a generic DSI Panel IC used to drive dsi
+ panels. Support video mode panels from China Star Optoelectronics
+ Technology (CSOT) and BOE Technology.
+
+allOf:
+ - $ref: panel-common.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - xiaomi,elish-boe-nt36523
+ - xiaomi,elish-csot-nt36523
+ - const: novatek,nt36523
+
+ reset-gpios:
+ maxItems: 1
+ description: phandle of gpio for reset line - This should be 8mA
+
+ vddio-supply:
+ description: regulator that supplies the I/O voltage
+
+ vddpos-supply:
+ description: positive boost supply regulator
+
+ vddneg-supply:
+ description: negative boost supply regulator
+
+ reg: true
+ ports: true
+ backlight: true
+
+required:
+ - compatible
+ - reg
+ - vddio-supply
+ - vddpos-supply
+ - vddneg-supply
+ - reset-gpios
+ - ports
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ dsi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ panel@0 {
+ compatible = "xiaomi,elish-csot-nt36523", "novatek,nt36523";
+ reg = <0>;
+ vddio-supply = <&vreg_l14a_1p88>;
+ vddpos-supply = <&lcd_vddpos_5p5>;
+ vddneg-supply = <&lcd_vddneg_5p5>;
+
+ backlight = <&backlight>;
+ reset-gpios = <&tlmm 75 GPIO_ACTIVE_LOW>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ panel_in_0: endpoint {
+ remote-endpoint = <&dsi0_out>;
+ };
+ };
+
+ port@1{
+ reg = <1>;
+ panel_in_1: endpoint {
+ remote-endpoint = <&dsi1_out>;
+ };
+ };
+ };
+ };
+ };
+
+...
--
2.39.2
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523
2023-02-20 12:12 [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings Jianhua Lu
@ 2023-02-20 12:12 ` Jianhua Lu
2023-03-07 22:34 ` Linus Walleij
2023-02-22 9:34 ` [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings Krzysztof Kozlowski
2023-03-07 22:22 ` Linus Walleij
2 siblings, 1 reply; 9+ messages in thread
From: Jianhua Lu @ 2023-02-20 12:12 UTC (permalink / raw)
To: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter,
Rob Herring, Krzysztof Kozlowski
Cc: dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming,
phone-devel, Jianhua Lu
Add a driver for panels using the Novatek NT36523 display driver IC.
Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
---
Changes in v2:
- Refactor and clean up source code
MAINTAINERS | 7 +
drivers/gpu/drm/panel/Kconfig | 10 +
drivers/gpu/drm/panel/Makefile | 1 +
drivers/gpu/drm/panel/panel-novatek-nt36523.c | 832 ++++++++++++++++++
4 files changed, 850 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-novatek-nt36523.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 6b91bcbbc22f..3423c6a255ff 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6538,6 +6538,13 @@ T: git git://anongit.freedesktop.org/drm/drm-misc
F: Documentation/devicetree/bindings/display/panel/sony,acx424akp.yaml
F: drivers/gpu/drm/panel/panel-novatek-nt35560.c
+DRM DRIVER FOR NOVATEK NT36523 PANELS
+M: Jianhua Lu <lujianhua000@gmail.com>
+S: Maintained
+T: git git://anongit.freedesktop.org/drm/drm-misc
+F: Documentation/devicetree/bindings/display/panel/novatek,nt36523.yaml
+F: drivers/gpu/drm/panel/panel-novatek-nt36523.c
+
DRM DRIVER FOR NOVATEK NT36672A PANELS
M: Sumit Semwal <sumit.semwal@linaro.org>
S: Maintained
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 8eeee71c0000..268508743b5c 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -377,6 +377,16 @@ config DRM_PANEL_NOVATEK_NT35950
Sharp panels used in Sony Xperia Z5 Premium and XZ Premium
mobile phones.
+config DRM_PANEL_NOVATEK_NT36523
+ tristate "Novatek NT36523 panel driver"
+ 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 panels built
+ around the Novatek NT36523 display controller, such as some
+ Boe panels used in Xiaomi Mi Pad 5 and 5 Pro tablets.
+
config DRM_PANEL_NOVATEK_NT36672A
tristate "Novatek NT36672A DSI panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index c05aa9e23907..570eab8bf2b2 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_DRM_PANEL_NEWVISION_NV3052C) += panel-newvision-nv3052c.o
obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35510) += panel-novatek-nt35510.o
obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35560) += panel-novatek-nt35560.o
obj-$(CONFIG_DRM_PANEL_NOVATEK_NT35950) += panel-novatek-nt35950.o
+obj-$(CONFIG_DRM_PANEL_NOVATEK_NT36523) += panel-novatek-nt36523.o
obj-$(CONFIG_DRM_PANEL_NOVATEK_NT36672A) += panel-novatek-nt36672a.o
obj-$(CONFIG_DRM_PANEL_NOVATEK_NT39016) += panel-novatek-nt39016.o
obj-$(CONFIG_DRM_PANEL_MANTIX_MLAF057WE51) += panel-mantix-mlaf057we51.o
diff --git a/drivers/gpu/drm/panel/panel-novatek-nt36523.c b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
new file mode 100644
index 000000000000..1516e243d98e
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-novatek-nt36523.c
@@ -0,0 +1,832 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Novatek NT36523 DriverIC panels driver
+ * This driver based on the source code of panel-boe-tv101wum-nl6.c
+ * and panel-novatek-nt35950.c
+ *
+ * Copyright (c) 2022, 2023 Jianhua Lu <lujianhua000@gmail.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/drm_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+
+#define DSI_NUM_MIN 1
+
+struct panel_desc {
+ unsigned int width_mm;
+ unsigned int height_mm;
+
+ unsigned int bpc;
+ unsigned int lanes;
+ unsigned long mode_flags;
+ enum mipi_dsi_pixel_format format;
+
+ const struct drm_display_mode *modes;
+ const struct mipi_dsi_device_info dsi_info;
+ const struct panel_init_cmd *init_cmds;
+ bool is_dual_dsi;
+};
+
+struct panel_info {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi[2];
+ const struct panel_desc *desc;
+
+ struct gpio_desc *reset_gpio;
+ struct backlight_device *backlight;
+ struct regulator_bulk_data supplies[3];
+
+ bool prepared;
+};
+
+enum dsi_cmd_type {
+ INIT_DCS_CMD,
+ DELAY_CMD,
+};
+
+struct panel_init_cmd {
+ enum dsi_cmd_type type;
+ size_t len;
+ const char *data;
+};
+
+#define _INIT_DCS_CMD(...) { \
+ .type = INIT_DCS_CMD, \
+ .len = sizeof((char[]){__VA_ARGS__}), \
+ .data = (char[]){__VA_ARGS__} }
+
+#define _INIT_DELAY_CMD(...) { \
+ .type = DELAY_CMD,\
+ .len = sizeof((char[]){__VA_ARGS__}), \
+ .data = (char[]){__VA_ARGS__} }
+
+static const char * const nt36523_regulator_names[] = {
+ "vddio",
+ "vddpos",
+ "vddneg",
+};
+
+static const unsigned long nt36523_regulator_enable_loads[] = {
+ 62000,
+ 100000,
+ 100000
+};
+
+static const struct panel_init_cmd elish_boe_init_cmds[] = {
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xB9, 0x05),
+ _INIT_DCS_CMD(0xFF, 0x20),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x18, 0x40),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xB9, 0x02),
+ _INIT_DCS_CMD(0xFF, 0x23),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x00, 0x80),
+ _INIT_DCS_CMD(0x01, 0x84),
+ _INIT_DCS_CMD(0x05, 0x2D),
+ _INIT_DCS_CMD(0x06, 0x00),
+ _INIT_DCS_CMD(0x07, 0x00),
+ _INIT_DCS_CMD(0x08, 0x01),
+ _INIT_DCS_CMD(0x09, 0x45),
+ _INIT_DCS_CMD(0x11, 0x02),
+ _INIT_DCS_CMD(0x12, 0x80),
+ _INIT_DCS_CMD(0x15, 0x83),
+ _INIT_DCS_CMD(0x16, 0x0C),
+ _INIT_DCS_CMD(0x29, 0x0A),
+ _INIT_DCS_CMD(0x30, 0xFF),
+ _INIT_DCS_CMD(0x31, 0xFE),
+ _INIT_DCS_CMD(0x32, 0xFD),
+ _INIT_DCS_CMD(0x33, 0xFB),
+ _INIT_DCS_CMD(0x34, 0xF8),
+ _INIT_DCS_CMD(0x35, 0xF5),
+ _INIT_DCS_CMD(0x36, 0xF3),
+ _INIT_DCS_CMD(0x37, 0xF2),
+ _INIT_DCS_CMD(0x38, 0xF2),
+ _INIT_DCS_CMD(0x39, 0xF2),
+ _INIT_DCS_CMD(0x3A, 0xEF),
+ _INIT_DCS_CMD(0x3B, 0xEC),
+ _INIT_DCS_CMD(0x3D, 0xE9),
+ _INIT_DCS_CMD(0x3F, 0xE5),
+ _INIT_DCS_CMD(0x40, 0xE5),
+ _INIT_DCS_CMD(0x41, 0xE5),
+ _INIT_DCS_CMD(0x2A, 0x13),
+ _INIT_DCS_CMD(0x45, 0xFF),
+ _INIT_DCS_CMD(0x46, 0xF4),
+ _INIT_DCS_CMD(0x47, 0xE7),
+ _INIT_DCS_CMD(0x48, 0xDA),
+ _INIT_DCS_CMD(0x49, 0xCD),
+ _INIT_DCS_CMD(0x4A, 0xC0),
+ _INIT_DCS_CMD(0x4B, 0xB3),
+ _INIT_DCS_CMD(0x4C, 0xB2),
+ _INIT_DCS_CMD(0x4D, 0xB2),
+ _INIT_DCS_CMD(0x4E, 0xB2),
+ _INIT_DCS_CMD(0x4F, 0x99),
+ _INIT_DCS_CMD(0x50, 0x80),
+ _INIT_DCS_CMD(0x51, 0x68),
+ _INIT_DCS_CMD(0x52, 0x66),
+ _INIT_DCS_CMD(0x53, 0x66),
+ _INIT_DCS_CMD(0x54, 0x66),
+ _INIT_DCS_CMD(0x2B, 0x0E),
+ _INIT_DCS_CMD(0x58, 0xFF),
+ _INIT_DCS_CMD(0x59, 0xFB),
+ _INIT_DCS_CMD(0x5A, 0xF7),
+ _INIT_DCS_CMD(0x5B, 0xF3),
+ _INIT_DCS_CMD(0x5C, 0xEF),
+ _INIT_DCS_CMD(0x5D, 0xE3),
+ _INIT_DCS_CMD(0x5E, 0xDA),
+ _INIT_DCS_CMD(0x5F, 0xD8),
+ _INIT_DCS_CMD(0x60, 0xD8),
+ _INIT_DCS_CMD(0x61, 0xD8),
+ _INIT_DCS_CMD(0x62, 0xCB),
+ _INIT_DCS_CMD(0x63, 0xBF),
+ _INIT_DCS_CMD(0x64, 0xB3),
+ _INIT_DCS_CMD(0x65, 0xB2),
+ _INIT_DCS_CMD(0x66, 0xB2),
+ _INIT_DCS_CMD(0x67, 0xB2),
+ _INIT_DCS_CMD(0xFF, 0x2A),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x25, 0x47),
+ _INIT_DCS_CMD(0x30, 0x47),
+ _INIT_DCS_CMD(0x39, 0x47),
+ _INIT_DCS_CMD(0xFF, 0x26),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x19, 0x10),
+ _INIT_DCS_CMD(0x1A, 0xE0),
+ _INIT_DCS_CMD(0x1B, 0x10),
+ _INIT_DCS_CMD(0x1C, 0x00),
+ _INIT_DCS_CMD(0x2A, 0x10),
+ _INIT_DCS_CMD(0x2B, 0xE0),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xFF, 0xF0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x84, 0x08),
+ _INIT_DCS_CMD(0x85, 0x0C),
+ _INIT_DCS_CMD(0xFF, 0x20),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x51, 0x00),
+ _INIT_DCS_CMD(0xFF, 0x25),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x91, 0x1F),
+ _INIT_DCS_CMD(0x92, 0x0F),
+ _INIT_DCS_CMD(0x93, 0x01),
+ _INIT_DCS_CMD(0x94, 0x18),
+ _INIT_DCS_CMD(0x95, 0x03),
+ _INIT_DCS_CMD(0x96, 0x01),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xB0, 0x01),
+ _INIT_DCS_CMD(0xFF, 0x25),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x19, 0x1F),
+ _INIT_DCS_CMD(0x1B, 0x1B),
+ _INIT_DCS_CMD(0xFF, 0x24),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xB8, 0x28),
+ _INIT_DCS_CMD(0xFF, 0x27),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xD0, 0x31),
+ _INIT_DCS_CMD(0xD1, 0x20),
+ _INIT_DCS_CMD(0xD2, 0x30),
+ _INIT_DCS_CMD(0xD4, 0x08),
+ _INIT_DCS_CMD(0xDE, 0x80),
+ _INIT_DCS_CMD(0xDF, 0x02),
+ _INIT_DCS_CMD(0xFF, 0x26),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x00, 0x81),
+ _INIT_DCS_CMD(0x01, 0xB0),
+ _INIT_DCS_CMD(0xFF, 0x22),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x9F, 0x50),
+ _INIT_DCS_CMD(0x6F, 0x01),
+ _INIT_DCS_CMD(0x70, 0x11),
+ _INIT_DCS_CMD(0x73, 0x01),
+ _INIT_DCS_CMD(0x74, 0x49),
+ _INIT_DCS_CMD(0x76, 0x01),
+ _INIT_DCS_CMD(0x77, 0x49),
+ _INIT_DCS_CMD(0xA0, 0x3F),
+ _INIT_DCS_CMD(0xA9, 0x50),
+ _INIT_DCS_CMD(0xAA, 0x28),
+ _INIT_DCS_CMD(0xAB, 0x28),
+ _INIT_DCS_CMD(0xAD, 0x10),
+ _INIT_DCS_CMD(0xB8, 0x00),
+ _INIT_DCS_CMD(0xB9, 0x49),
+ _INIT_DCS_CMD(0xBA, 0x49),
+ _INIT_DCS_CMD(0xBB, 0x49),
+ _INIT_DCS_CMD(0xBE, 0x04),
+ _INIT_DCS_CMD(0xBF, 0x49),
+ _INIT_DCS_CMD(0xC0, 0x04),
+ _INIT_DCS_CMD(0xC1, 0x59),
+ _INIT_DCS_CMD(0xC2, 0x00),
+ _INIT_DCS_CMD(0xC5, 0x00),
+ _INIT_DCS_CMD(0xC6, 0x01),
+ _INIT_DCS_CMD(0xC7, 0x48),
+ _INIT_DCS_CMD(0xCA, 0x43),
+ _INIT_DCS_CMD(0xCB, 0x3C),
+ _INIT_DCS_CMD(0xCE, 0x00),
+ _INIT_DCS_CMD(0xCF, 0x43),
+ _INIT_DCS_CMD(0xD0, 0x3C),
+ _INIT_DCS_CMD(0xD3, 0x43),
+ _INIT_DCS_CMD(0xD4, 0x3C),
+ _INIT_DCS_CMD(0xD7, 0x00),
+ _INIT_DCS_CMD(0xDC, 0x43),
+ _INIT_DCS_CMD(0xDD, 0x3C),
+ _INIT_DCS_CMD(0xE1, 0x43),
+ _INIT_DCS_CMD(0xE2, 0x3C),
+ _INIT_DCS_CMD(0xF2, 0x00),
+ _INIT_DCS_CMD(0xF3, 0x01),
+ _INIT_DCS_CMD(0xF4, 0x48),
+ _INIT_DCS_CMD(0xFF, 0x25),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x13, 0x01),
+ _INIT_DCS_CMD(0x14, 0x23),
+ _INIT_DCS_CMD(0xBC, 0x01),
+ _INIT_DCS_CMD(0xBD, 0x23),
+ _INIT_DCS_CMD(0xFF, 0x2A),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x97, 0x3C),
+ _INIT_DCS_CMD(0x98, 0x02),
+ _INIT_DCS_CMD(0x99, 0x95),
+ _INIT_DCS_CMD(0x9A, 0x03),
+ _INIT_DCS_CMD(0x9B, 0x00),
+ _INIT_DCS_CMD(0x9C, 0x0B),
+ _INIT_DCS_CMD(0x9D, 0x0A),
+ _INIT_DCS_CMD(0x9E, 0x90),
+ _INIT_DCS_CMD(0xFF, 0x22),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x9F, 0x50),
+ _INIT_DCS_CMD(0xFF, 0x23),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xA3, 0x50),
+ _INIT_DCS_CMD(0xFF, 0xE0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x14, 0x60),
+ _INIT_DCS_CMD(0x16, 0xC0),
+ _INIT_DCS_CMD(0x4F, 0x02),
+ _INIT_DCS_CMD(0xFF, 0xF0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x3A, 0x08),
+ _INIT_DCS_CMD(0xFF, 0xD0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x02, 0xAF),
+ _INIT_DCS_CMD(0x09, 0xEE),
+ _INIT_DCS_CMD(0x1C, 0x99),
+ _INIT_DCS_CMD(0x1D, 0x09),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x51, 0x0F, 0xFF),
+ _INIT_DCS_CMD(0x53, 0x2C),
+ _INIT_DCS_CMD(0x35, 0x00),
+ _INIT_DCS_CMD(0xBB, 0x13),
+ _INIT_DCS_CMD(0x3B, 0x03, 0xAC, 0x1A, 0x04, 0x04),
+ _INIT_DCS_CMD(0x11),
+ _INIT_DELAY_CMD(70),
+ _INIT_DCS_CMD(0x29),
+ {},
+};
+
+static const struct panel_init_cmd elish_csot_init_cmds[] = {
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xB9, 0x05),
+ _INIT_DCS_CMD(0xFF, 0x20),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x18, 0x40),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xB9, 0x02),
+ _INIT_DCS_CMD(0xFF, 0xD0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x02, 0xAF),
+ _INIT_DCS_CMD(0x00, 0x30),
+ _INIT_DCS_CMD(0x09, 0xEE),
+ _INIT_DCS_CMD(0x1C, 0x99),
+ _INIT_DCS_CMD(0x1D, 0x09),
+ _INIT_DCS_CMD(0xFF, 0xF0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x3A, 0x08),
+ _INIT_DCS_CMD(0xFF, 0xE0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x4F, 0x02),
+ _INIT_DCS_CMD(0xFF, 0x20),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x58, 0x40),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x35, 0x00),
+ _INIT_DCS_CMD(0xFF, 0x23),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x00, 0x80),
+ _INIT_DCS_CMD(0x01, 0x84),
+ _INIT_DCS_CMD(0x05, 0x2D),
+ _INIT_DCS_CMD(0x06, 0x00),
+ _INIT_DCS_CMD(0x07, 0x00),
+ _INIT_DCS_CMD(0x08, 0x01),
+ _INIT_DCS_CMD(0x09, 0x45),
+ _INIT_DCS_CMD(0x11, 0x02),
+ _INIT_DCS_CMD(0x12, 0x80),
+ _INIT_DCS_CMD(0x15, 0x83),
+ _INIT_DCS_CMD(0x16, 0x0C),
+ _INIT_DCS_CMD(0x29, 0x0A),
+ _INIT_DCS_CMD(0x30, 0xFF),
+ _INIT_DCS_CMD(0x31, 0xFE),
+ _INIT_DCS_CMD(0x32, 0xFD),
+ _INIT_DCS_CMD(0x33, 0xFB),
+ _INIT_DCS_CMD(0x34, 0xF8),
+ _INIT_DCS_CMD(0x35, 0xF5),
+ _INIT_DCS_CMD(0x36, 0xF3),
+ _INIT_DCS_CMD(0x37, 0xF2),
+ _INIT_DCS_CMD(0x38, 0xF2),
+ _INIT_DCS_CMD(0x39, 0xF2),
+ _INIT_DCS_CMD(0x3A, 0xEF),
+ _INIT_DCS_CMD(0x3B, 0xEC),
+ _INIT_DCS_CMD(0x3D, 0xE9),
+ _INIT_DCS_CMD(0x3F, 0xE5),
+ _INIT_DCS_CMD(0x40, 0xE5),
+ _INIT_DCS_CMD(0x41, 0xE5),
+ _INIT_DCS_CMD(0x2A, 0x13),
+ _INIT_DCS_CMD(0x45, 0xFF),
+ _INIT_DCS_CMD(0x46, 0xF4),
+ _INIT_DCS_CMD(0x47, 0xE7),
+ _INIT_DCS_CMD(0x48, 0xDA),
+ _INIT_DCS_CMD(0x49, 0xCD),
+ _INIT_DCS_CMD(0x4A, 0xC0),
+ _INIT_DCS_CMD(0x4B, 0xB3),
+ _INIT_DCS_CMD(0x4C, 0xB2),
+ _INIT_DCS_CMD(0x4D, 0xB2),
+ _INIT_DCS_CMD(0x4E, 0xB2),
+ _INIT_DCS_CMD(0x4F, 0x99),
+ _INIT_DCS_CMD(0x50, 0x80),
+ _INIT_DCS_CMD(0x51, 0x68),
+ _INIT_DCS_CMD(0x52, 0x66),
+ _INIT_DCS_CMD(0x53, 0x66),
+ _INIT_DCS_CMD(0x54, 0x66),
+ _INIT_DCS_CMD(0x2B, 0x0E),
+ _INIT_DCS_CMD(0x58, 0xFF),
+ _INIT_DCS_CMD(0x59, 0xFB),
+ _INIT_DCS_CMD(0x5A, 0xF7),
+ _INIT_DCS_CMD(0x5B, 0xF3),
+ _INIT_DCS_CMD(0x5C, 0xEF),
+ _INIT_DCS_CMD(0x5D, 0xE3),
+ _INIT_DCS_CMD(0x5E, 0xDA),
+ _INIT_DCS_CMD(0x5F, 0xD8),
+ _INIT_DCS_CMD(0x60, 0xD8),
+ _INIT_DCS_CMD(0x61, 0xD8),
+ _INIT_DCS_CMD(0x62, 0xCB),
+ _INIT_DCS_CMD(0x63, 0xBF),
+ _INIT_DCS_CMD(0x64, 0xB3),
+ _INIT_DCS_CMD(0x65, 0xB2),
+ _INIT_DCS_CMD(0x66, 0xB2),
+ _INIT_DCS_CMD(0x67, 0xB2),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x51, 0x0F, 0xFF),
+ _INIT_DCS_CMD(0x53, 0x2C),
+ _INIT_DCS_CMD(0x55, 0x00),
+ _INIT_DCS_CMD(0xBB, 0x13),
+ _INIT_DCS_CMD(0x3B, 0x03, 0xAC, 0x1A, 0x04, 0x04),
+ _INIT_DCS_CMD(0xFF, 0x2A),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x25, 0x46),
+ _INIT_DCS_CMD(0x30, 0x46),
+ _INIT_DCS_CMD(0x39, 0x46),
+ _INIT_DCS_CMD(0xFF, 0x26),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x01, 0xB0),
+ _INIT_DCS_CMD(0x19, 0x10),
+ _INIT_DCS_CMD(0x1A, 0xE0),
+ _INIT_DCS_CMD(0x1B, 0x10),
+ _INIT_DCS_CMD(0x1C, 0x00),
+ _INIT_DCS_CMD(0x2A, 0x10),
+ _INIT_DCS_CMD(0x2B, 0xE0),
+ _INIT_DCS_CMD(0xFF, 0xF0),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x84, 0x08),
+ _INIT_DCS_CMD(0x85, 0x0C),
+ _INIT_DCS_CMD(0xFF, 0x20),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x51, 0x00),
+ _INIT_DCS_CMD(0xFF, 0x25),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x91, 0x1F),
+ _INIT_DCS_CMD(0x92, 0x0F),
+ _INIT_DCS_CMD(0x93, 0x01),
+ _INIT_DCS_CMD(0x94, 0x18),
+ _INIT_DCS_CMD(0x95, 0x03),
+ _INIT_DCS_CMD(0x96, 0x01),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0xB0, 0x01),
+ _INIT_DCS_CMD(0xFF, 0x25),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x19, 0x1F),
+ _INIT_DCS_CMD(0x1B, 0x1B),
+ _INIT_DCS_CMD(0xFF, 0x24),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xB8, 0x28),
+ _INIT_DCS_CMD(0xFF, 0x27),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xD0, 0x31),
+ _INIT_DCS_CMD(0xD1, 0x20),
+ _INIT_DCS_CMD(0xD4, 0x08),
+ _INIT_DCS_CMD(0xDE, 0x80),
+ _INIT_DCS_CMD(0xDF, 0x02),
+ _INIT_DCS_CMD(0xFF, 0x26),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x00, 0x81),
+ _INIT_DCS_CMD(0x01, 0xB0),
+ _INIT_DCS_CMD(0xFF, 0x22),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x6F, 0x01),
+ _INIT_DCS_CMD(0x70, 0x11),
+ _INIT_DCS_CMD(0x73, 0x01),
+ _INIT_DCS_CMD(0x74, 0x4D),
+ _INIT_DCS_CMD(0xA0, 0x3F),
+ _INIT_DCS_CMD(0xA9, 0x50),
+ _INIT_DCS_CMD(0xAA, 0x28),
+ _INIT_DCS_CMD(0xAB, 0x28),
+ _INIT_DCS_CMD(0xAD, 0x10),
+ _INIT_DCS_CMD(0xB8, 0x00),
+ _INIT_DCS_CMD(0xB9, 0x4B),
+ _INIT_DCS_CMD(0xBA, 0x96),
+ _INIT_DCS_CMD(0xBB, 0x4B),
+ _INIT_DCS_CMD(0xBE, 0x07),
+ _INIT_DCS_CMD(0xBF, 0x4B),
+ _INIT_DCS_CMD(0xC0, 0x07),
+ _INIT_DCS_CMD(0xC1, 0x5C),
+ _INIT_DCS_CMD(0xC2, 0x00),
+ _INIT_DCS_CMD(0xC5, 0x00),
+ _INIT_DCS_CMD(0xC6, 0x3F),
+ _INIT_DCS_CMD(0xC7, 0x00),
+ _INIT_DCS_CMD(0xCA, 0x08),
+ _INIT_DCS_CMD(0xCB, 0x40),
+ _INIT_DCS_CMD(0xCE, 0x00),
+ _INIT_DCS_CMD(0xCF, 0x08),
+ _INIT_DCS_CMD(0xD0, 0x40),
+ _INIT_DCS_CMD(0xD3, 0x08),
+ _INIT_DCS_CMD(0xD4, 0x40),
+ _INIT_DCS_CMD(0xFF, 0x25),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0xBC, 0x01),
+ _INIT_DCS_CMD(0xBD, 0x1C),
+ _INIT_DCS_CMD(0xFF, 0x2A),
+ _INIT_DCS_CMD(0xFB, 0x01),
+ _INIT_DCS_CMD(0x9A, 0x03),
+ _INIT_DCS_CMD(0xFF, 0x10),
+ _INIT_DCS_CMD(0x11),
+ _INIT_DELAY_CMD(70),
+ _INIT_DCS_CMD(0x29),
+ {},
+};
+
+static const struct drm_display_mode elish_boe_mode = {
+ /* Current max freqency is 104HZ, TODO 120HZ */
+ .clock = (1600 + 60 + 8 + 60) * (2560 + 26 + 4 + 168) * 104 / 1000,
+ .hdisplay = 1600,
+ .hsync_start = 1600 + 60,
+ .hsync_end = 1600 + 60 + 8,
+ .htotal = 1600 + 60 + 8 + 60,
+ .vdisplay = 2560,
+ .vsync_start = 2560 + 26,
+ .vsync_end = 2560 + 26 + 4,
+ .vtotal = 2560 + 26 + 4 + 168,
+};
+
+static const struct drm_display_mode elish_csot_mode = {
+ /* Current max freqency is 104HZ, TODO 120HZ */
+ .clock = (1600 + 200 + 40 + 52) * (2560 + 26 + 4 + 168) * 104 / 1000,
+ .hdisplay = 1600,
+ .hsync_start = 1600 + 200,
+ .hsync_end = 1600 + 200 + 40,
+ .htotal = 1600 + 200 + 40 + 52,
+ .vdisplay = 2560,
+ .vsync_start = 2560 + 26,
+ .vsync_end = 2560 + 26 + 4,
+ .vtotal = 2560 + 26 + 4 + 168,
+};
+
+static const struct panel_desc elish_boe_desc = {
+ .modes = &elish_boe_mode,
+ .dsi_info = {
+ .type = "NT36523",
+ .channel = 0,
+ .node = NULL,
+ },
+ .width_mm = 127,
+ .height_mm = 203,
+ .bpc = 8,
+ .lanes = 3,
+ .format = MIPI_DSI_FMT_RGB888,
+ .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
+ .init_cmds = elish_boe_init_cmds,
+ .is_dual_dsi = true,
+};
+
+static const struct panel_desc elish_csot_desc = {
+ .modes = &elish_csot_mode,
+ .dsi_info = {
+ .type = "NT36523",
+ .channel = 0,
+ .node = NULL,
+ },
+ .width_mm = 127,
+ .height_mm = 203,
+ .bpc = 8,
+ .lanes = 3,
+ .format = MIPI_DSI_FMT_RGB888,
+ .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
+ .init_cmds = elish_csot_init_cmds,
+ .is_dual_dsi = true,
+};
+
+static inline struct panel_info *to_panel_info(struct drm_panel *panel)
+{
+ return container_of(panel, struct panel_info, panel);
+}
+
+static void nt36523_reset(struct panel_info *pinfo)
+{
+ gpiod_set_value_cansleep(pinfo->reset_gpio, 1);
+ usleep_range(12000, 13000);
+ gpiod_set_value_cansleep(pinfo->reset_gpio, 0);
+ usleep_range(12000, 13000);
+ gpiod_set_value_cansleep(pinfo->reset_gpio, 1);
+ usleep_range(12000, 13000);
+ gpiod_set_value_cansleep(pinfo->reset_gpio, 0);
+ usleep_range(12000, 13000);
+}
+
+static int send_panel_init_cmds(struct drm_panel *panel, const struct panel_init_cmd *cmds)
+{
+ struct panel_info *pinfo = to_panel_info(panel);
+ int i, j, err;
+
+ if (!cmds)
+ return -EFAULT;
+
+ for (i = 0; cmds[i].len != 0; i++) {
+ const struct panel_init_cmd *cmd = &cmds[i];
+
+ switch (cmd->type) {
+ case DELAY_CMD:
+ msleep(cmd->data[0]);
+ break;
+ case INIT_DCS_CMD:
+ for (j = 0; j < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; j++) {
+ err = mipi_dsi_dcs_write(pinfo->dsi[j], cmd->data[0],
+ cmd->len <= 1 ? NULL : &cmd->data[1],
+ cmd->len - 1);
+ if (err < 0) {
+ dev_err(&pinfo->dsi[j]->dev, "failed to write command %u\n", i);
+ return err;
+ }
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int nt36523_prepare(struct drm_panel *panel)
+{
+ struct panel_info *pinfo = to_panel_info(panel);
+ int i, ret;
+
+ if (pinfo->prepared)
+ return 0;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(pinfo->supplies), pinfo->supplies);
+ if (ret < 0)
+ return ret;
+
+ nt36523_reset(pinfo);
+
+ for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++)
+ pinfo->dsi[i]->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ ret = send_panel_init_cmds(&pinfo->panel, pinfo->desc->init_cmds);
+ if (ret < 0) {
+ regulator_bulk_disable(ARRAY_SIZE(pinfo->supplies), pinfo->supplies);
+ dev_err(panel->dev, "failed to initialize panel: %d\n", ret);
+ return ret;
+ }
+
+ pinfo->prepared = true;
+
+ return 0;
+}
+
+static int nt36523_disable(struct drm_panel *panel)
+{
+ struct panel_info *pinfo = to_panel_info(panel);
+ int i, ret;
+
+ for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++)
+ pinfo->dsi[i]->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++) {
+ ret = mipi_dsi_dcs_set_display_off(pinfo->dsi[i]);
+ if (ret < 0)
+ dev_err(&pinfo->dsi[i]->dev, "failed to set display off: %d\n", ret);
+ }
+
+ for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++) {
+ ret = mipi_dsi_dcs_enter_sleep_mode(pinfo->dsi[i]);
+ if (ret < 0)
+ dev_err(&pinfo->dsi[i]->dev, "failed to enter sleep mode: %d\n", ret);
+ }
+
+ msleep(70);
+
+ return 0;
+}
+
+static int nt36523_unprepare(struct drm_panel *panel)
+{
+ struct panel_info *pinfo = to_panel_info(panel);
+
+ if (!pinfo->prepared)
+ return 0;
+
+ gpiod_set_value_cansleep(pinfo->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(pinfo->supplies), pinfo->supplies);
+
+ pinfo->prepared = false;
+
+ return 0;
+}
+
+static void nt36523_remove(struct mipi_dsi_device *dsi)
+{
+ struct panel_info *pinfo = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ ret = mipi_dsi_detach(pinfo->dsi[0]);
+ if (ret < 0)
+ dev_err(&dsi->dev, "failed to detach from DSI0 host: %d\n", ret);
+
+ if (pinfo->desc->is_dual_dsi) {
+ ret = mipi_dsi_detach(pinfo->dsi[1]);
+ if (ret < 0)
+ dev_err(&pinfo->dsi[1]->dev, "failed to detach from DSI1 host: %d\n", ret);
+ mipi_dsi_device_unregister(pinfo->dsi[1]);
+ }
+
+ drm_panel_remove(&pinfo->panel);
+}
+
+static int nt36523_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct panel_info *pinfo = to_panel_info(panel);
+ const struct drm_display_mode *m = pinfo->desc->modes;
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(connector->dev, m);
+ if (!mode) {
+ dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+ m->hdisplay, m->vdisplay, drm_mode_vrefresh(m));
+ return -ENOMEM;
+ }
+
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ drm_mode_set_name(mode);
+ drm_mode_probed_add(connector, mode);
+
+ connector->display_info.width_mm = pinfo->desc->width_mm;
+ connector->display_info.height_mm = pinfo->desc->height_mm;
+ connector->display_info.bpc = pinfo->desc->bpc;
+
+ return 1;
+}
+
+static const struct drm_panel_funcs nt36523_panel_funcs = {
+ .disable = nt36523_disable,
+ .prepare = nt36523_prepare,
+ .unprepare = nt36523_unprepare,
+ .get_modes = nt36523_get_modes,
+};
+
+static int nt36523_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct device_node *dsi1;
+ struct mipi_dsi_host *dsi1_host;
+ struct panel_info *pinfo;
+ const struct mipi_dsi_device_info *info;
+ int i, ret;
+
+ pinfo = devm_kzalloc(dev, sizeof(*pinfo), GFP_KERNEL);
+ if (!pinfo)
+ return -ENOMEM;
+
+ for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++)
+ pinfo->supplies[i].supply = nt36523_regulator_names[i];
+
+ ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pinfo->supplies),
+ pinfo->supplies);
+ if (ret < 0)
+ return dev_err_probe(dev, ret, "failed to get regulators\n");
+
+ for (i = 0; i < ARRAY_SIZE(pinfo->supplies); i++) {
+ ret = regulator_set_load(pinfo->supplies[i].consumer,
+ nt36523_regulator_enable_loads[i]);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to set regulator enable loads\n");
+ }
+
+ pinfo->desc = of_device_get_match_data(dev);
+ if (!pinfo->desc)
+ return -ENODEV;
+
+ pinfo->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(pinfo->reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(pinfo->reset_gpio), "failed to get reset gpio\n");
+
+ /* If the panel is dual dsi, register DSI1 */
+ if (pinfo->desc->is_dual_dsi) {
+ info = &pinfo->desc->dsi_info;
+
+ dsi1 = of_graph_get_remote_node(dsi->dev.of_node, 1, -1);
+ if (!dsi1) {
+ dev_err(dev, "cannot get secondary DSI node.\n");
+ return -ENODEV;
+ }
+
+ dsi1_host = of_find_mipi_dsi_host_by_node(dsi1);
+ of_node_put(dsi1);
+ if (!dsi1_host) {
+ dev_err(dev, "cannot get secondary DSI host\n");
+ return -EPROBE_DEFER;
+ }
+
+ pinfo->dsi[1] = mipi_dsi_device_register_full(dsi1_host, info);
+ if (!pinfo->dsi[1]) {
+ dev_err(dev, "cannot get secondary DSI device\n");
+ return -ENODEV;
+ }
+ }
+
+ pinfo->dsi[0] = dsi;
+ mipi_dsi_set_drvdata(dsi, pinfo);
+ drm_panel_init(&pinfo->panel, dev, &nt36523_panel_funcs, DRM_MODE_CONNECTOR_DSI);
+
+ ret = drm_panel_of_backlight(&pinfo->panel);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to get backlight\n");
+
+ drm_panel_add(&pinfo->panel);
+
+ for (i = 0; i < DSI_NUM_MIN + pinfo->desc->is_dual_dsi; i++) {
+ pinfo->dsi[i]->lanes = pinfo->desc->lanes;
+ pinfo->dsi[i]->format = pinfo->desc->format;
+ pinfo->dsi[i]->mode_flags = pinfo->desc->mode_flags;
+
+ ret = mipi_dsi_attach(pinfo->dsi[i]);
+ if (ret < 0)
+ return dev_err_probe(dev, ret, "cannot attach to DSI%d host.\n", i);
+ }
+
+ return 0;
+}
+
+static const struct of_device_id nt36523_of_match[] = {
+ {
+ .compatible = "xiaomi,elish-boe-nt36523",
+ .data = &elish_boe_desc
+ },
+ {
+ .compatible = "xiaomi,elish-csot-nt36523",
+ .data = &elish_csot_desc
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, nt36523_of_match);
+
+static struct mipi_dsi_driver nt36523_driver = {
+ .probe = nt36523_probe,
+ .remove = nt36523_remove,
+ .driver = {
+ .name = "panel-novatek-nt36523",
+ .of_match_table = nt36523_of_match,
+ },
+};
+module_mipi_dsi_driver(nt36523_driver);
+
+MODULE_AUTHOR("Jianhua Lu <lujianhua000@gmail.com>");
+MODULE_DESCRIPTION("Novatek NT36523 DriverIC panels driver");
+MODULE_LICENSE("GPL");
--
2.39.2
^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings
2023-02-20 12:12 [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings Jianhua Lu
2023-02-20 12:12 ` [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523 Jianhua Lu
@ 2023-02-22 9:34 ` Krzysztof Kozlowski
2023-03-07 22:22 ` Linus Walleij
2 siblings, 0 replies; 9+ messages in thread
From: Krzysztof Kozlowski @ 2023-02-22 9:34 UTC (permalink / raw)
To: Jianhua Lu, Thierry Reding, Sam Ravnborg, David Airlie,
Daniel Vetter, Rob Herring, Krzysztof Kozlowski
Cc: dri-devel, devicetree, linux-kernel, ~postmarketos/upstreaming,
phone-devel
On 20/02/2023 13:12, Jianhua Lu wrote:
> Novatek NT36523 is a display driver IC used to drive DSI panels.
>
> Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
> ---
> Changes in v2:
> - Drop unnecessary description
> - dsi0 -> dsi
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings
2023-02-20 12:12 [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings Jianhua Lu
2023-02-20 12:12 ` [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523 Jianhua Lu
2023-02-22 9:34 ` [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings Krzysztof Kozlowski
@ 2023-03-07 22:22 ` Linus Walleij
2023-03-08 0:29 ` Jianhua Lu
2 siblings, 1 reply; 9+ messages in thread
From: Linus Walleij @ 2023-03-07 22:22 UTC (permalink / raw)
To: Jianhua Lu, Konrad Dybcio, Neil Armstrong
Cc: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter,
Rob Herring, Krzysztof Kozlowski, devicetree, linux-kernel,
dri-devel, ~postmarketos/upstreaming, phone-devel
On Mon, Feb 20, 2023 at 1:13 PM Jianhua Lu <lujianhua000@gmail.com> wrote:
> Novatek NT36523 is a display driver IC used to drive DSI panels.
>
> Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
> ---
> Changes in v2:
> - Drop unnecessary description
> - dsi0 -> dsi
> - Correct indentation
I'd like Konrad and Neil to look at this before we merge it.
> +required:
> + - compatible
> + - reg
> + - vddio-supply
> + - vddpos-supply
> + - vddneg-supply
It appears vddpos and vddneg are not necessary on
all variants, can they be made non-required?
It is also possible to do some - if -construction of course
based on the compatible, if we want to be fancy.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523
2023-02-20 12:12 ` [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523 Jianhua Lu
@ 2023-03-07 22:34 ` Linus Walleij
2023-03-08 0:37 ` Jianhua Lu
2023-03-08 0:45 ` Jianhua Lu
0 siblings, 2 replies; 9+ messages in thread
From: Linus Walleij @ 2023-03-07 22:34 UTC (permalink / raw)
To: Jianhua Lu, Konrad Dybcio
Cc: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter,
Rob Herring, Krzysztof Kozlowski, devicetree, linux-kernel,
dri-devel, ~postmarketos/upstreaming, phone-devel
Hi Jianhua,
thanks for your patch!
It appears Konrad is working on a very similar driver, so I suggest merging
them into one Novatek NT36523 driver.
Possibly we can fix this up first and then add Konrads Lenovo-panel with
a patch on top.
On Mon, Feb 20, 2023 at 1:13 PM Jianhua Lu <lujianhua000@gmail.com> wrote:
> Add a driver for panels using the Novatek NT36523 display driver IC.
>
> Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
(...)
I like how you abstract the panel with init commands in the panel info.
> +enum dsi_cmd_type {
> + INIT_DCS_CMD,
> + DELAY_CMD,
> +};
> +
> +struct panel_init_cmd {
> + enum dsi_cmd_type type;
> + size_t len;
> + const char *data;
> +};
> +
> +#define _INIT_DCS_CMD(...) { \
> + .type = INIT_DCS_CMD, \
> + .len = sizeof((char[]){__VA_ARGS__}), \
> + .data = (char[]){__VA_ARGS__} }
> +
> +#define _INIT_DELAY_CMD(...) { \
> + .type = DELAY_CMD,\
> + .len = sizeof((char[]){__VA_ARGS__}), \
> + .data = (char[]){__VA_ARGS__} }
I have seen this type of reinvented wheels a few times now. Don't do this.
Look into other recently merged drivers and look how they do it, for example
drivers/gpu/drm/panel/panel-himax-hx8394.c
For example:
- Use mipi_dsi_dcs_write_seq()
- If the delay is just used at one point in the sequence, do not invent
a command language like above for it, open code the delay instead
- Try to decode as much magic as possible, if you look in Konrads
driver you clearly see some standard MIPI commands, I bet you have
some too.
- Maybe use callbacks to send sequences instead of tables, like in
the himax driver?
Other than that it seems like something that could also handle the Lenovo
display, or the other way around, I don't know which driver is the best
starting point, but this one has the right Novatek name at least.
Yours,
Linus Walleij
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings
2023-03-07 22:22 ` Linus Walleij
@ 2023-03-08 0:29 ` Jianhua Lu
0 siblings, 0 replies; 9+ messages in thread
From: Jianhua Lu @ 2023-03-08 0:29 UTC (permalink / raw)
To: Linus Walleij
Cc: Konrad Dybcio, Neil Armstrong, Thierry Reding, Sam Ravnborg,
David Airlie, Daniel Vetter, Rob Herring, Krzysztof Kozlowski,
devicetree, linux-kernel, dri-devel, ~postmarketos/upstreaming,
phone-devel
On Tue, Mar 07, 2023 at 11:22:35PM +0100, Linus Walleij wrote:
> On Mon, Feb 20, 2023 at 1:13 PM Jianhua Lu <lujianhua000@gmail.com> wrote:
>
> > Novatek NT36523 is a display driver IC used to drive DSI panels.
> >
> > Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
> > ---
> > Changes in v2:
> > - Drop unnecessary description
> > - dsi0 -> dsi
> > - Correct indentation
>
> I'd like Konrad and Neil to look at this before we merge it.
>
> > +required:
> > + - compatible
> > + - reg
> > + - vddio-supply
> > + - vddpos-supply
> > + - vddneg-supply
>
> It appears vddpos and vddneg are not necessary on
> all variants, can they be made non-required?
It can be non-required, this panel's positive regulator and negative
regulator are supplied by backlight IC, the both regulator of Konrad's
NT36523W panel are supplied by secure firmware layer.
>
> It is also possible to do some - if -construction of course
> based on the compatible, if we want to be fancy.
>
> Yours,
> Linus Walleij
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523
2023-03-07 22:34 ` Linus Walleij
@ 2023-03-08 0:37 ` Jianhua Lu
2023-03-08 0:45 ` Jianhua Lu
1 sibling, 0 replies; 9+ messages in thread
From: Jianhua Lu @ 2023-03-08 0:37 UTC (permalink / raw)
To: Linus Walleij
Cc: Konrad Dybcio, Thierry Reding, Sam Ravnborg, David Airlie,
Daniel Vetter, Rob Herring, Krzysztof Kozlowski, devicetree,
linux-kernel, dri-devel, ~postmarketos/upstreaming, phone-devel
On Tue, Mar 07, 2023 at 11:34:55PM +0100, Linus Walleij wrote:
> Hi Jianhua,
>
> thanks for your patch!
>
> It appears Konrad is working on a very similar driver, so I suggest merging
> them into one Novatek NT36523 driver.
>
> Possibly we can fix this up first and then add Konrads Lenovo-panel with
> a patch on top.
>
> On Mon, Feb 20, 2023 at 1:13 PM Jianhua Lu <lujianhua000@gmail.com> wrote:
>
> > Add a driver for panels using the Novatek NT36523 display driver IC.
> >
> > Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
>
> (...)
>
> I like how you abstract the panel with init commands in the panel info.
>
> > +enum dsi_cmd_type {
> > + INIT_DCS_CMD,
> > + DELAY_CMD,
> > +};
> > +
> > +struct panel_init_cmd {
> > + enum dsi_cmd_type type;
> > + size_t len;
> > + const char *data;
> > +};
> > +
> > +#define _INIT_DCS_CMD(...) { \
> > + .type = INIT_DCS_CMD, \
> > + .len = sizeof((char[]){__VA_ARGS__}), \
> > + .data = (char[]){__VA_ARGS__} }
> > +
> > +#define _INIT_DELAY_CMD(...) { \
> > + .type = DELAY_CMD,\
> > + .len = sizeof((char[]){__VA_ARGS__}), \
> > + .data = (char[]){__VA_ARGS__} }
>
> I have seen this type of reinvented wheels a few times now. Don't do this.
>
> Look into other recently merged drivers and look how they do it, for example
> drivers/gpu/drm/panel/panel-himax-hx8394.c
>
> For example:
>
> - Use mipi_dsi_dcs_write_seq()
>
> - If the delay is just used at one point in the sequence, do not invent
> a command language like above for it, open code the delay instead
>
> - Try to decode as much magic as possible, if you look in Konrads
> driver you clearly see some standard MIPI commands, I bet you have
> some too.
>
> - Maybe use callbacks to send sequences instead of tables, like in
> the himax driver?
I use init cmd tables in order to send init sequences to dsi0 and dsi1 at the
same time (sync dual dsi mode). I don't found a convenient way to use
mipi_dsi_dcs_write_seq() for sync dual dsi mode.
>
> Other than that it seems like something that could also handle the Lenovo
> display, or the other way around, I don't know which driver is the best
> starting point, but this one has the right Novatek name at least.
>
> Yours,
> Linus Walleij
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523
2023-03-07 22:34 ` Linus Walleij
2023-03-08 0:37 ` Jianhua Lu
@ 2023-03-08 0:45 ` Jianhua Lu
2023-03-08 11:04 ` Konrad Dybcio
1 sibling, 1 reply; 9+ messages in thread
From: Jianhua Lu @ 2023-03-08 0:45 UTC (permalink / raw)
To: Linus Walleij
Cc: Konrad Dybcio, Thierry Reding, Sam Ravnborg, David Airlie,
Daniel Vetter, Rob Herring, Krzysztof Kozlowski, devicetree,
linux-kernel, dri-devel, ~postmarketos/upstreaming, phone-devel
On Tue, Mar 07, 2023 at 11:34:55PM +0100, Linus Walleij wrote:
> Hi Jianhua,
>
> thanks for your patch!
>
> It appears Konrad is working on a very similar driver, so I suggest merging
> them into one Novatek NT36523 driver.
>
> Possibly we can fix this up first and then add Konrads Lenovo-panel with
> a patch on top.
>
> On Mon, Feb 20, 2023 at 1:13 PM Jianhua Lu <lujianhua000@gmail.com> wrote:
>
> > Add a driver for panels using the Novatek NT36523 display driver IC.
> >
> > Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
>
> (...)
>
> I like how you abstract the panel with init commands in the panel info.
>
> > +enum dsi_cmd_type {
> > + INIT_DCS_CMD,
> > + DELAY_CMD,
> > +};
> > +
> > +struct panel_init_cmd {
> > + enum dsi_cmd_type type;
> > + size_t len;
> > + const char *data;
> > +};
> > +
> > +#define _INIT_DCS_CMD(...) { \
> > + .type = INIT_DCS_CMD, \
> > + .len = sizeof((char[]){__VA_ARGS__}), \
> > + .data = (char[]){__VA_ARGS__} }
> > +
> > +#define _INIT_DELAY_CMD(...) { \
> > + .type = DELAY_CMD,\
> > + .len = sizeof((char[]){__VA_ARGS__}), \
> > + .data = (char[]){__VA_ARGS__} }
>
> I have seen this type of reinvented wheels a few times now. Don't do this.
>
> Look into other recently merged drivers and look how they do it, for example
> drivers/gpu/drm/panel/panel-himax-hx8394.c
>
> For example:
>
> - Use mipi_dsi_dcs_write_seq()
>
> - If the delay is just used at one point in the sequence, do not invent
> a command language like above for it, open code the delay instead
>
> - Try to decode as much magic as possible, if you look in Konrads
> driver you clearly see some standard MIPI commands, I bet you have
> some too.
>
> - Maybe use callbacks to send sequences instead of tables, like in
> the himax driver?
Maybe I should create a wrapper of mipi_dsi_dcs_write_seq() for sync dual dsi mode.
>
> Other than that it seems like something that could also handle the Lenovo
> display, or the other way around, I don't know which driver is the best
> starting point, but this one has the right Novatek name at least.
>
> Yours,
> Linus Walleij
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523
2023-03-08 0:45 ` Jianhua Lu
@ 2023-03-08 11:04 ` Konrad Dybcio
0 siblings, 0 replies; 9+ messages in thread
From: Konrad Dybcio @ 2023-03-08 11:04 UTC (permalink / raw)
To: Jianhua Lu, Linus Walleij
Cc: Thierry Reding, Sam Ravnborg, David Airlie, Daniel Vetter,
Rob Herring, Krzysztof Kozlowski, devicetree, linux-kernel,
dri-devel, ~postmarketos/upstreaming, phone-devel
On 8.03.2023 01:45, Jianhua Lu wrote:
> On Tue, Mar 07, 2023 at 11:34:55PM +0100, Linus Walleij wrote:
>> Hi Jianhua,
>>
>> thanks for your patch!
>>
>> It appears Konrad is working on a very similar driver, so I suggest merging
>> them into one Novatek NT36523 driver.
>>
>> Possibly we can fix this up first and then add Konrads Lenovo-panel with
>> a patch on top.
>>
>> On Mon, Feb 20, 2023 at 1:13 PM Jianhua Lu <lujianhua000@gmail.com> wrote:
>>
>>> Add a driver for panels using the Novatek NT36523 display driver IC.
>>>
>>> Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
>>
>> (...)
>>
>> I like how you abstract the panel with init commands in the panel info.
>>
>>> +enum dsi_cmd_type {
>>> + INIT_DCS_CMD,
>>> + DELAY_CMD,
>>> +};
>>> +
>>> +struct panel_init_cmd {
>>> + enum dsi_cmd_type type;
>>> + size_t len;
>>> + const char *data;
>>> +};
>>> +
>>> +#define _INIT_DCS_CMD(...) { \
>>> + .type = INIT_DCS_CMD, \
>>> + .len = sizeof((char[]){__VA_ARGS__}), \
>>> + .data = (char[]){__VA_ARGS__} }
>>> +
>>> +#define _INIT_DELAY_CMD(...) { \
>>> + .type = DELAY_CMD,\
>>> + .len = sizeof((char[]){__VA_ARGS__}), \
>>> + .data = (char[]){__VA_ARGS__} }
>>
>> I have seen this type of reinvented wheels a few times now. Don't do this.
>>
>> Look into other recently merged drivers and look how they do it, for example
>> drivers/gpu/drm/panel/panel-himax-hx8394.c
>>
>> For example:
>>
>> - Use mipi_dsi_dcs_write_seq()
>>
>> - If the delay is just used at one point in the sequence, do not invent
>> a command language like above for it, open code the delay instead
>>
>> - Try to decode as much magic as possible, if you look in Konrads
>> driver you clearly see some standard MIPI commands, I bet you have
>> some too.
>>
>> - Maybe use callbacks to send sequences instead of tables, like in
>> the himax driver?
> Maybe I should create a wrapper of mipi_dsi_dcs_write_seq() for sync dual dsi mode.
Yes please, it'll come in useful.
Konrad
>>
>> Other than that it seems like something that could also handle the Lenovo
>> display, or the other way around, I don't know which driver is the best
>> starting point, but this one has the right Novatek name at least.
>>
>> Yours,
>> Linus Walleij
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2023-03-08 11:05 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-02-20 12:12 [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings Jianhua Lu
2023-02-20 12:12 ` [PATCH v2 2/2] drm/panel: Add driver for Novatek NT36523 Jianhua Lu
2023-03-07 22:34 ` Linus Walleij
2023-03-08 0:37 ` Jianhua Lu
2023-03-08 0:45 ` Jianhua Lu
2023-03-08 11:04 ` Konrad Dybcio
2023-02-22 9:34 ` [PATCH v2 1/2] dt-bindings: display: panel: Add Novatek NT36523 bindings Krzysztof Kozlowski
2023-03-07 22:22 ` Linus Walleij
2023-03-08 0:29 ` Jianhua Lu
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