[PATCH v2 2/7] drm/panel: himax-hx83102: Break out as separate driver

Cong Yang
2024-04-22T09:03:32Z

The Starry HX83102 based mipi panel should never have been part of the boe
tv101wum driver. Discussion with Doug and Linus in V1 [1], we need a
separate driver to enable the hx83102 controller.

In hx83102 driver, add DSI commands as macros. So it can add some panels
with same control model in the future.

[1]: https://lore.kernel.org/all/CACRpkdbzYZAS0=zBQJUC4CB2wj4s1h6n6aSAZQvdMV95r3zRUw@mail.gmail.com

Signed-off-by: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
---
drivers/gpu/drm/panel/Kconfig | 9 +
drivers/gpu/drm/panel/Makefile | 1 +
.../gpu/drm/panel/panel-boe-tv101wum-nl6.c | 99 ---
drivers/gpu/drm/panel/panel-himax-hx83102.c | 567 ++++++++++++++++++
4 files changed, 577 insertions(+), 99 deletions(-)
create mode 100644 drivers/gpu/drm/panel/panel-himax-hx83102.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index d037b3b8b999..eb378c897353 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -145,6 +145,15 @@ config DRM_PANEL_LVDS
handling of power supplies or control signals. It implements automatic
backlight handling if the panel is attached to a backlight controller.

+config DRM_PANEL_HIMAX_HX83102
+ tristate "himax HX83102-based panels"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y if you want to enable support for panels based on the
+ himax HX83102 controller.
+
config DRM_PANEL_HIMAX_HX83112A
tristate "Himax HX83112A-based DSI panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index f156d7fa0bcc..8fa9e38382f6 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_DRM_PANEL_EBBG_FT8719) += panel-ebbg-ft8719.o
obj-$(CONFIG_DRM_PANEL_ELIDA_KD35T133) += panel-elida-kd35t133.o
obj-$(CONFIG_DRM_PANEL_FEIXIN_K101_IM2BA02) += panel-feixin-k101-im2ba02.o
obj-$(CONFIG_DRM_PANEL_FEIYANG_FY07024DI26A30D) += panel-feiyang-fy07024di26a30d.o
+obj-$(CONFIG_DRM_PANEL_HIMAX_HX83102) += panel-himax-hx83102.o
obj-$(CONFIG_DRM_PANEL_HIMAX_HX83112A) += panel-himax-hx83112a.o
obj-$(CONFIG_DRM_PANEL_HIMAX_HX8394) += panel-himax-hx8394.o
obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index 0ffe8f8c01de..11c1c56145c8 100644
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -1300,74 +1300,6 @@ static const struct panel_init_cmd starry_qfh032011_53g_init_cmd[] = {
{},
};

-static const struct panel_init_cmd starry_himax83102_j02_init_cmd[] = {
- _INIT_DCS_CMD(0xB9, 0x83, 0x10, 0x21, 0x55, 0x00),
- _INIT_DCS_CMD(0xB1, 0x2C, 0xB5, 0xB5, 0x31, 0xF1, 0x31, 0xD7, 0x2F, 0x36, 0x36, 0x36, 0x36, 0x1A, 0x8B, 0x11,
- 0x65, 0x00, 0x88, 0xFA, 0xFF, 0xFF, 0x8F, 0xFF, 0x08, 0x74, 0x33),
- _INIT_DCS_CMD(0xB2, 0x00, 0x47, 0xB0, 0x80, 0x00, 0x12, 0x72, 0x3C, 0xA3, 0x03, 0x03, 0x00, 0x00, 0x88, 0xF5),
- _INIT_DCS_CMD(0xB4, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x63, 0x5C, 0x63, 0x5C, 0x01, 0x9E),
- _INIT_DCS_CMD(0xE9, 0xCD),
- _INIT_DCS_CMD(0xBA, 0x84),
- _INIT_DCS_CMD(0xE9, 0x3F),
- _INIT_DCS_CMD(0xBC, 0x1B, 0x04),
- _INIT_DCS_CMD(0xBE, 0x20),
- _INIT_DCS_CMD(0xBF, 0xFC, 0xC4),
- _INIT_DCS_CMD(0xC0, 0x36, 0x36, 0x22, 0x11, 0x22, 0xA0, 0x61, 0x08, 0xF5, 0x03),
- _INIT_DCS_CMD(0xE9, 0xCC),
- _INIT_DCS_CMD(0xC7, 0x80),
- _INIT_DCS_CMD(0xE9, 0x3F),
- _INIT_DCS_CMD(0xE9, 0xC6),
- _INIT_DCS_CMD(0xC8, 0x97),
- _INIT_DCS_CMD(0xE9, 0x3F),
- _INIT_DCS_CMD(0xC9, 0x00, 0x1E, 0x13, 0x88, 0x01),
- _INIT_DCS_CMD(0xCB, 0x08, 0x13, 0x07, 0x00, 0x0F, 0x33),
- _INIT_DCS_CMD(0xCC, 0x02),
- _INIT_DCS_CMD(0xE9, 0xC4),
- _INIT_DCS_CMD(0xD0, 0x03),
- _INIT_DCS_CMD(0xE9, 0x3F),
- _INIT_DCS_CMD(0xD1, 0x37, 0x06, 0x00, 0x02, 0x04, 0x0C, 0xFF),
- _INIT_DCS_CMD(0xD2, 0x1F, 0x11, 0x1F),
- _INIT_DCS_CMD(0xD3, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x08, 0x37, 0x47, 0x34, 0x3B, 0x12, 0x12, 0x03,
- 0x03, 0x32, 0x10, 0x10, 0x00, 0x10, 0x32, 0x10, 0x08, 0x00, 0x08, 0x32, 0x17, 0x94, 0x07, 0x94, 0x00, 0x00),
- _INIT_DCS_CMD(0xD5, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x19, 0x19, 0x40, 0x40, 0x1A, 0x1A,
- 0x1B, 0x1B, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x20, 0x21, 0x28, 0x29, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18),
- _INIT_DCS_CMD(0xD6, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x40, 0x40, 0x19, 0x19, 0x1A, 0x1A,
- 0x1B, 0x1B, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0x29, 0x28, 0x21, 0x20, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18),
- _INIT_DCS_CMD(0xD8, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA, 0xEA, 0xAA,
- 0xAA, 0xA0, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0),
- _INIT_DCS_CMD(0xE0, 0x00, 0x09, 0x14, 0x1E, 0x26, 0x48, 0x61, 0x67, 0x6C, 0x67, 0x7D, 0x7F, 0x80, 0x8B, 0x87, 0x8F, 0x98, 0xAB,
- 0xAB, 0x55, 0x5C, 0x68, 0x73, 0x00, 0x09, 0x14, 0x1E, 0x26, 0x48, 0x61, 0x67, 0x6C, 0x67, 0x7D, 0x7F, 0x80, 0x8B, 0x87, 0x8F, 0x98, 0xAB, 0xAB, 0x55, 0x5C, 0x68, 0x73),
- _INIT_DCS_CMD(0xE7, 0x0E, 0x10, 0x10, 0x21, 0x2B, 0x9A, 0x02, 0x54, 0x9A, 0x14, 0x14, 0x00, 0x00, 0x00, 0x00, 0x12, 0x05, 0x02, 0x02, 0x10),
- _INIT_DCS_CMD(0xBD, 0x01),
- _INIT_DCS_CMD(0xB1, 0x01, 0xBF, 0x11),
- _INIT_DCS_CMD(0xCB, 0x86),
- _INIT_DCS_CMD(0xD2, 0x3C, 0xFA),
- _INIT_DCS_CMD(0xD3, 0x00, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x0C, 0x01),
- _INIT_DCS_CMD(0xE7, 0x02, 0x00, 0x28, 0x01, 0x7E, 0x0F, 0x7E, 0x10, 0xA0, 0x00, 0x00, 0x20, 0x40, 0x50, 0x40),
- _INIT_DCS_CMD(0xBD, 0x02),
- _INIT_DCS_CMD(0xD8, 0xFF, 0xFF, 0xBF, 0xFE, 0xAA, 0xA0, 0xFF, 0xFF, 0xBF, 0xFE, 0xAA, 0xA0),
- _INIT_DCS_CMD(0xE7, 0xFE, 0x04, 0xFE, 0x04, 0xFE, 0x04, 0x03, 0x03, 0x03, 0x26, 0x00, 0x26, 0x81, 0x02, 0x40, 0x00, 0x20, 0x9E, 0x04, 0x03, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00),
- _INIT_DCS_CMD(0xBD, 0x03),
- _INIT_DCS_CMD(0xE9, 0xC6),
- _INIT_DCS_CMD(0xB4, 0x03, 0xFF, 0xF8),
- _INIT_DCS_CMD(0xE9, 0x3F),
- _INIT_DCS_CMD(0xD8, 0x00, 0x2A, 0xAA, 0xA8, 0x00, 0x00, 0x00, 0x2A, 0xAA, 0xA8, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x2A, 0xAA, 0xA8,
- 0x00, 0x00, 0x00, 0x2A, 0xAA, 0xA8, 0x00, 0x00),
- _INIT_DCS_CMD(0xBD, 0x00),
- _INIT_DCS_CMD(0xE9, 0xC4),
- _INIT_DCS_CMD(0xBA, 0x96),
- _INIT_DCS_CMD(0xE9, 0x3F),
- _INIT_DCS_CMD(0xBD, 0x01),
- _INIT_DCS_CMD(0xE9, 0xC5),
- _INIT_DCS_CMD(0xBA, 0x4F),
- _INIT_DCS_CMD(0xE9, 0x3F),
- _INIT_DCS_CMD(0xBD, 0x00),
- _INIT_DCS_CMD(0x11),
- _INIT_DELAY_CMD(120),
- _INIT_DCS_CMD(0x29),
- {},
-};
-
static inline struct boe_panel *to_boe_panel(struct drm_panel *panel)
{
return container_of(panel, struct boe_panel, base);
@@ -1767,34 +1699,6 @@ static const struct panel_desc starry_qfh032011_53g_desc = {
.lp11_before_reset = true,
};

-static const struct drm_display_mode starry_himax83102_j02_default_mode = {
- .clock = 162680,
- .hdisplay = 1200,
- .hsync_start = 1200 + 60,
- .hsync_end = 1200 + 60 + 20,
- .htotal = 1200 + 60 + 20 + 40,
- .vdisplay = 1920,
- .vsync_start = 1920 + 116,
- .vsync_end = 1920 + 116 + 8,
- .vtotal = 1920 + 116 + 8 + 12,
- .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
-};
-
-static const struct panel_desc starry_himax83102_j02_desc = {
- .modes = &starry_himax83102_j02_default_mode,
- .bpc = 8,
- .size = {
- .width_mm = 141,
- .height_mm = 226,
- },
- .lanes = 4,
- .format = MIPI_DSI_FMT_RGB888,
- .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
- MIPI_DSI_MODE_LPM,
- .init_cmds = starry_himax83102_j02_init_cmd,
- .lp11_before_reset = true,
-};
-
static int boe_panel_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
@@ -1970,9 +1874,6 @@ static const struct of_device_id boe_of_match[] = {
{ .compatible = "starry,2081101qfh032011-53g",
.data = &starry_qfh032011_53g_desc
},
- { .compatible = "starry,himax83102-j02",
- .data = &starry_himax83102_j02_desc
- },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, boe_of_match);
diff --git a/drivers/gpu/drm/panel/panel-himax-hx83102.c b/drivers/gpu/drm/panel/panel-himax-hx83102.c
new file mode 100644
index 000000000000..ac8329f89195
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-himax-hx83102.c
@@ -0,0 +1,567 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for panels based on Himax HX83102 controller, such as:
+ *
+ * - Starry 10.51" WUXGA MIPI-DSI panel
+ *
+ * Based on drivers/gpu/drm/panel/panel-boe-tv101wum.c
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.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_panel.h>
+
+#include <video/mipi_display.h>
+
+#define DRV_NAME "panel-himax-hx83102"
+
+/* Manufacturer specific DSI commands */
+#define HX83102_SETPOWER 0xb1
+#define HX83102_SETDISP 0xb2
+#define HX83102_SETCYC 0xb4
+#define HX83102_SETEXTC 0xb9
+#define HX83102_SETMIPI 0xba
+#define HX83102_SETVDC 0xbc
+#define HX83102_SETBANK 0xbd
+#define HX83102_UNKNOWN1 0xbe
+#define HX83102_SETPTBA 0xbf
+#define HX83102_SETSTBA 0xc0
+#define HX83102_SETTCON 0xc7
+#define HX83102_SETRAMDMY 0xc8
+#define HX83102_SETPWM 0xc9
+#define HX83102_SETCLOCK 0xcb
+#define HX83102_SETPANEL 0xcc
+#define HX83102_SETCASCADE 0xd0
+#define HX83102_SETPCTRL 0xd1
+#define HX83102_UNKNOWN2 0xd2
+#define HX83102_SETGIP0 0xd3
+#define HX83102_SETGIP1 0xd5
+#define HX83102_UNKNOWN3 0xd6
+#define HX83102_SETGIP3 0xd8
+#define HX83102_UNKNOWN4 0xe0
+#define HX83102_SETTP1 0xe7
+#define HX83102_SETSPCCMD 0xe9
+
+struct hx83102 {
+ struct drm_panel base;
+ struct mipi_dsi_device *dsi;
+
+ const struct hx83102_panel_desc *desc;
+
+ enum drm_panel_orientation orientation;
+ struct regulator *pp1800;
+ struct regulator *avee;
+ struct regulator *avdd;
+ struct gpio_desc *enable_gpio;
+
+ bool prepared;
+};
+
+struct hx83102_panel_desc {
+ const struct drm_display_mode *modes;
+ unsigned int bpc;
+
+ /**
+ * @width_mm: width of the panel's active display area
+ * @height_mm: height of the panel's active display area
+ */
+ struct {
+ unsigned int width_mm;
+ unsigned int height_mm;
+ } size;
+
+ unsigned long mode_flags;
+ enum mipi_dsi_pixel_format format;
+ unsigned int lanes;
+ bool lp11_before_reset;
+ int (*init_cmds)(struct hx83102 *ctx);
+};
+
+static inline struct hx83102 *panel_to_hx83102(struct drm_panel *panel)
+{
+ return container_of(panel, struct hx83102, base);
+}
+
+static int starry_init_cmd(struct hx83102 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETEXTC, 0x83, 0x10, 0x21, 0x55, 0x00);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETPOWER, 0x2C, 0xB5, 0xB5, 0x31, 0xF1, 0x31, 0xD7, 0x2F,
+ 0x36, 0x36, 0x36, 0x36, 0x1A, 0x8B, 0x11, 0x65, 0x00, 0x88, 0xFA, 0xFF,
+ 0xFF, 0x8F, 0xFF, 0x08, 0x74, 0x33);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETDISP, 0x00, 0x47, 0xB0, 0x80, 0x00, 0x12, 0x72, 0x3C,
+ 0xA3, 0x03, 0x03, 0x00, 0x00, 0x88, 0xF5);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETCYC, 0x76, 0x76, 0x76, 0x76, 0x76, 0x76, 0x63, 0x5C,
+ 0x63, 0x5C, 0x01, 0x9E);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0xCD);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETMIPI, 0x84);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0x3F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETVDC, 0x1B, 0x04);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_UNKNOWN1, 0x20);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETPTBA, 0xFC, 0xC4);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSTBA, 0x36, 0x36, 0x22, 0x11, 0x22, 0xA0, 0x61, 0x08,
+ 0xF5, 0x03);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0xCC);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETTCON, 0x80);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0x3F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0xC6);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETRAMDMY, 0x97);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0x3F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETPWM, 0x00, 0x1E, 0x13, 0x88, 0x01);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETCLOCK, 0x08, 0x13, 0x07, 0x00, 0x0F, 0x33);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETPANEL, 0x02);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0xC4);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETCASCADE, 0x03);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0x3F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETPCTRL, 0x37, 0x06, 0x00, 0x02, 0x04, 0x0C, 0xFF);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_UNKNOWN2, 0x1F, 0x11, 0x1F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETGIP0, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00,
+ 0x08, 0x37, 0x47, 0x34, 0x3B, 0x12, 0x12, 0x03, 0x03, 0x32, 0x10, 0x10,
+ 0x00, 0x10, 0x32, 0x10, 0x08, 0x00, 0x08, 0x32, 0x17, 0x94, 0x07, 0x94,
+ 0x00, 0x00);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETGIP1, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x19, 0x19, 0x40, 0x40, 0x1A, 0x1A, 0x1B, 0x1B, 0x00, 0x01,
+ 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x20, 0x21, 0x28, 0x29, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_UNKNOWN3, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
+ 0x18, 0x18, 0x40, 0x40, 0x19, 0x19, 0x1A, 0x1A, 0x1B, 0x1B, 0x07, 0x06,
+ 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0x29, 0x28, 0x21, 0x20, 0x18, 0x18,
+ 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETGIP3, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA,
+ 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA,
+ 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA, 0xEA, 0xAA, 0xAA, 0xA0, 0xAA, 0xBA,
+ 0xEA, 0xAA, 0xAA, 0xA0);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_UNKNOWN4, 0x00, 0x09, 0x14, 0x1E, 0x26, 0x48, 0x61, 0x67,
+ 0x6C, 0x67, 0x7D, 0x7F, 0x80, 0x8B, 0x87, 0x8F, 0x98, 0xAB, 0xAB, 0x55,
+ 0x5C, 0x68, 0x73, 0x00, 0x09, 0x14, 0x1E, 0x26, 0x48, 0x61, 0x67, 0x6C,
+ 0x67, 0x7D, 0x7F, 0x80, 0x8B, 0x87, 0x8F, 0x98, 0xAB, 0xAB, 0x55, 0x5C,
+ 0x68, 0x73);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETTP1, 0x0E, 0x10, 0x10, 0x21, 0x2B, 0x9A, 0x02, 0x54,
+ 0x9A, 0x14, 0x14, 0x00, 0x00, 0x00, 0x00, 0x12, 0x05, 0x02, 0x02, 0x10);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETBANK, 0x01);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETPOWER, 0x01, 0xBF, 0x11);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETCLOCK, 0x86);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_UNKNOWN2, 0x3C, 0xFA);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETGIP0, 0x00, 0x00, 0x44, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x80, 0x0C, 0x01);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETTP1, 0x02, 0x00, 0x28, 0x01, 0x7E, 0x0F, 0x7E, 0x10,
+ 0xA0, 0x00, 0x00, 0x20, 0x40, 0x50, 0x40);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETBANK, 0x02);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETGIP3, 0xFF, 0xFF, 0xBF, 0xFE, 0xAA, 0xA0, 0xFF, 0xFF,
+ 0xBF, 0xFE, 0xAA, 0xA0);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETTP1, 0xFE, 0x04, 0xFE, 0x04, 0xFE, 0x04, 0x03, 0x03,
+ 0x03, 0x26, 0x00, 0x26, 0x81, 0x02, 0x40, 0x00, 0x20, 0x9E, 0x04, 0x03,
+ 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETBANK, 0x03);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0xC6);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETCYC, 0x03, 0xFF, 0xF8);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0x3F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETGIP3, 0x00, 0x2A, 0xAA, 0xA8, 0x00, 0x00, 0x00, 0x2A,
+ 0xAA, 0xA8, 0x00, 0x00, 0x00, 0x3F, 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x3F,
+ 0xFF, 0xFC, 0x00, 0x00, 0x00, 0x2A, 0xAA, 0xA8, 0x00, 0x00, 0x00, 0x2A,
+ 0xAA, 0xA8, 0x00, 0x00);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETBANK, 0x00);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0xC4);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETMIPI, 0x96);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0x3F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETBANK, 0x01);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0xC5);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETMIPI, 0x4F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETSPCCMD, 0x3F);
+
+ mipi_dsi_dcs_write_seq(dsi, HX83102_SETBANK, 0x00);
+
+ return 0;
+};
+
+static const struct drm_display_mode starry_mode = {
+ .clock = 162680,
+ .hdisplay = 1200,
+ .hsync_start = 1200 + 60,
+ .hsync_end = 1200 + 60 + 20,
+ .htotal = 1200 + 60 + 20 + 40,
+ .vdisplay = 1920,
+ .vsync_start = 1920 + 116,
+ .vsync_end = 1920 + 116 + 8,
+ .vtotal = 1920 + 116 + 8 + 12,
+ .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
+};
+
+static const struct hx83102_panel_desc starry_desc = {
+ .modes = &starry_mode,
+ .bpc = 8,
+ .size = {
+ .width_mm = 141,
+ .height_mm = 226,
+ },
+ .lanes = 4,
+ .format = MIPI_DSI_FMT_RGB888,
+ .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_MODE_LPM,
+ .init_cmds = starry_init_cmd,
+ .lp11_before_reset = true,
+};
+
+static int hx83102_enable(struct drm_panel *panel)
+{
+ struct hx83102 *ctx = panel_to_hx83102(panel);
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ ret = ctx->desc->init_cmds(ctx);
+ if (ret) {
+ dev_err(dev, "Panel init cmds failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret) {
+ 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) {
+ dev_err(dev, "Failed to turn on the display: %d\n", ret);
+ goto sleep_in;
+ }
+
+ msleep(130);
+
+ return 0;
+
+sleep_in:
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (!ret)
+ msleep(50);
+
+ return ret;
+}
+
+static int hx83102_panel_enter_sleep_mode(struct hx83102 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_off(dsi);
+ if (ret < 0)
+ return ret;
+
+ ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int hx83102_disable(struct drm_panel *panel)
+{
+ struct hx83102 *ctx = panel_to_hx83102(panel);
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct device *dev = &dsi->dev;
+ int ret;
+
+ ret = hx83102_panel_enter_sleep_mode(ctx);
+ if (ret < 0) {
+ dev_err(dev, "failed to set panel off: %d\n", ret);
+ return ret;
+ }
+
+ msleep(150);
+
+ return 0;
+}
+
+static int hx83102_unprepare(struct drm_panel *panel)
+{
+ struct hx83102 *ctx = panel_to_hx83102(panel);
+
+ if (!ctx->prepared)
+ return 0;
+
+ gpiod_set_value(ctx->enable_gpio, 0);
+ usleep_range(1000, 2000);
+ regulator_disable(ctx->avee);
+ regulator_disable(ctx->avdd);
+ usleep_range(5000, 7000);
+ regulator_disable(ctx->pp1800);
+
+ ctx->prepared = false;
+
+ return 0;
+}
+
+static int hx83102_prepare(struct drm_panel *panel)
+{
+ struct hx83102 *ctx = panel_to_hx83102(panel);
+ int ret;
+
+
+ if (ctx->prepared)
+ return 0;
+
+ gpiod_set_value(ctx->enable_gpio, 0);
+ usleep_range(1000, 1500);
+
+ ret = regulator_enable(ctx->pp1800);
+ if (ret < 0)
+ return ret;
+
+ usleep_range(3000, 5000);
+
+ ret = regulator_enable(ctx->avdd);
+ if (ret < 0)
+ goto poweroff1v8;
+ ret = regulator_enable(ctx->avee);
+ if (ret < 0)
+ goto poweroffavdd;
+
+ usleep_range(10000, 11000);
+
+ if (ctx->desc->lp11_before_reset) {
+ mipi_dsi_dcs_nop(ctx->dsi);
+ usleep_range(1000, 2000);
+ }
+ gpiod_set_value(ctx->enable_gpio, 1);
+ usleep_range(1000, 2000);
+ gpiod_set_value(ctx->enable_gpio, 0);
+ usleep_range(1000, 2000);
+ gpiod_set_value(ctx->enable_gpio, 1);
+ usleep_range(6000, 10000);
+
+ ctx->prepared = true;
+
+ return 0;
+
+poweroffavdd:
+ regulator_disable(ctx->avdd);
+poweroff1v8:
+ usleep_range(5000, 7000);
+ regulator_disable(ctx->pp1800);
+ gpiod_set_value(ctx->enable_gpio, 0);
+
+ return ret;
+}
+
+static int hx83102_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ struct hx83102 *ctx = panel_to_hx83102(panel);
+ const struct drm_display_mode *m = ctx->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 = ctx->desc->size.width_mm;
+ connector->display_info.height_mm = ctx->desc->size.height_mm;
+ connector->display_info.bpc = ctx->desc->bpc;
+ /*
+ * TODO: Remove once all drm drivers call
+ * drm_connector_set_orientation_from_panel()
+ */
+ drm_connector_set_panel_orientation(connector, ctx->orientation);
+
+ return 1;
+}
+
+static enum drm_panel_orientation hx83102_get_orientation(struct drm_panel *panel)
+{
+ struct hx83102 *ctx = panel_to_hx83102(panel);
+
+ return ctx->orientation;
+}
+
+static const struct drm_panel_funcs hx83102_drm_funcs = {
+ .disable = hx83102_disable,
+ .unprepare = hx83102_unprepare,
+ .prepare = hx83102_prepare,
+ .enable = hx83102_enable,
+ .get_modes = hx83102_get_modes,
+ .get_orientation = hx83102_get_orientation,
+};
+
+static int hx83102_panel_add(struct hx83102 *ctx)
+{
+ struct device *dev = &ctx->dsi->dev;
+ int err;
+
+ ctx->avdd = devm_regulator_get(dev, "avdd");
+ if (IS_ERR(ctx->avdd))
+ return PTR_ERR(ctx->avdd);
+
+ ctx->avee = devm_regulator_get(dev, "avee");
+ if (IS_ERR(ctx->avee))
+ return PTR_ERR(ctx->avee);
+
+ ctx->pp1800 = devm_regulator_get(dev, "pp1800");
+ if (IS_ERR(ctx->pp1800))
+ return PTR_ERR(ctx->pp1800);
+
+ ctx->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->enable_gpio)) {
+ dev_err(dev, "cannot get reset-gpios %ld\n",
+ PTR_ERR(ctx->enable_gpio));
+ return PTR_ERR(ctx->enable_gpio);
+ }
+
+ gpiod_set_value(ctx->enable_gpio, 0);
+
+ ctx->base.prepare_prev_first = true;
+
+ drm_panel_init(&ctx->base, dev, &hx83102_drm_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ err = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation);
+ if (err < 0) {
+ dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, err);
+ return err;
+ }
+
+ err = drm_panel_of_backlight(&ctx->base);
+ if (err)
+ return err;
+
+ ctx->base.funcs = &hx83102_drm_funcs;
+ ctx->base.dev = &ctx->dsi->dev;
+
+ drm_panel_add(&ctx->base);
+
+ return 0;
+}
+
+static int hx83102_probe(struct mipi_dsi_device *dsi)
+{
+ struct hx83102 *ctx;
+ int ret;
+ const struct hx83102_panel_desc *desc;
+
+ ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ desc = of_device_get_match_data(&dsi->dev);
+ dsi->lanes = desc->lanes;
+ dsi->format = desc->format;
+ dsi->mode_flags = desc->mode_flags;
+ ctx->desc = desc;
+ ctx->dsi = dsi;
+ ret = hx83102_panel_add(ctx);
+ if (ret < 0)
+ return ret;
+
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ ret = mipi_dsi_attach(dsi);
+ if (ret)
+ drm_panel_remove(&ctx->base);
+
+ return ret;
+}
+
+static void hx83102_remove(struct mipi_dsi_device *dsi)
+{
+ struct hx83102 *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);
+
+ if (ctx->base.dev)
+ drm_panel_remove(&ctx->base);
+}
+
+static const struct of_device_id hx83102_of_match[] = {
+ { .compatible = "starry,himax83102-j02",
+ .data = &starry_desc
+ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, hx83102_of_match);
+
+static struct mipi_dsi_driver hx83102_driver = {
+ .probe = hx83102_probe,
+ .remove = hx83102_remove,
+ .driver = {
+ .name = DRV_NAME,
+ .of_match_table = hx83102_of_match,
+ },
+};
+module_mipi_dsi_driver(hx83102_driver);
+
+MODULE_AUTHOR("Cong Yang <yangcong5@huaqin.corp-partner.google.com>");
+MODULE_DESCRIPTION("DRM driver for Himax HX83102 based MIPI DSI panels");
+MODULE_LICENSE("GPL");
--
2.25.1