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Commit b2152121 authored by Neil Armstrong's avatar Neil Armstrong
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drm: panel: add Khadas TS050 panel driver 

This add support for the Khadas TS050 1080x1920 5" LCD DSI panel designed to work
with the Khadas Edge-V, Captain, VIM3 and VIM3L Single Board Computers.
It provides a MIPI DSI interface to the host, a built-in LED backlight
and touch controller.

The init values was taken from the vendor source tree, comments were added to the
know values but most of the init table is undocumented.
Signed-off-by: default avatarNeil Armstrong <narmstrong@baylibre.com>
Reviewed-by: default avatarSam Ravnborg <sam@ravnborg.org>
[narmstrong: call drm_panel_remove if mipi_dsi_attach fails]
Link: https://patchwork.freedesktop.org/patch/msgid/20201204081949.38418-3-narmstrong@baylibre.com
parent 98cda4b5
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drivers/gpu/drm/panel/Kconfig
View file @ b2152121
...@@ -145,6 +145,17 @@ config DRM_PANEL_JDI_LT070ME05000 ...@@ -145,6 +145,17 @@ config DRM_PANEL_JDI_LT070ME05000
The panel has a 1200(RGB)×1920 (WUXGA) resolution and uses The panel has a 1200(RGB)×1920 (WUXGA) resolution and uses
24 bit per pixel. 24 bit per pixel.
config DRM_PANEL_KHADAS_TS050
tristate "Khadas TS050 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 Khadas TS050 TFT-LCD
panel module. The panel has a 1080x1920 resolution and uses
24 bit RGB per pixel. It provides a MIPI DSI interface to
the host, a built-in LED backlight and touch controller.
config DRM_PANEL_KINGDISPLAY_KD097D04 config DRM_PANEL_KINGDISPLAY_KD097D04
tristate "Kingdisplay kd097d04 panel" tristate "Kingdisplay kd097d04 panel"
depends on OF depends on OF
......
drivers/gpu/drm/panel/Makefile
View file @ b2152121
...@@ -13,6 +13,7 @@ obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o ...@@ -13,6 +13,7 @@ obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o
obj-$(CONFIG_DRM_PANEL_KHADAS_TS050) += panel-khadas-ts050.o
obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o
obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W) += panel-leadtek-ltk050h3146w.o obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK050H3146W) += panel-leadtek-ltk050h3146w.o
obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o obj-$(CONFIG_DRM_PANEL_LEADTEK_LTK500HD1829) += panel-leadtek-ltk500hd1829.o
......
drivers/gpu/drm/panel/panel-khadas-ts050.c 0 → 100644
View file @ b2152121
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2020 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
*/
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>
#include <video/mipi_display.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
struct khadas_ts050_panel {
struct drm_panel base;
struct mipi_dsi_device *link;
struct regulator *supply;
struct gpio_desc *reset_gpio;
struct gpio_desc *enable_gpio;
bool prepared;
bool enabled;
};
struct khadas_ts050_panel_cmd {
u8 cmd;
u8 data;
};
/* Only the CMD1 User Command set is documented */
static const struct khadas_ts050_panel_cmd init_code[] = {
/* Select Unknown CMD Page (Undocumented) */
{0xff, 0xee},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
{0x1f, 0x45},
{0x24, 0x4f},
{0x38, 0xc8},
{0x39, 0x27},
{0x1e, 0x77},
{0x1d, 0x0f},
{0x7e, 0x71},
{0x7c, 0x03},
{0xff, 0x00},
{0xfb, 0x01},
{0x35, 0x01},
/* Select CMD2 Page0 (Undocumented) */
{0xff, 0x01},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
{0x00, 0x01},
{0x01, 0x55},
{0x02, 0x40},
{0x05, 0x40},
{0x06, 0x4a},
{0x07, 0x24},
{0x08, 0x0c},
{0x0b, 0x7d},
{0x0c, 0x7d},
{0x0e, 0xb0},
{0x0f, 0xae},
{0x11, 0x10},
{0x12, 0x10},
{0x13, 0x03},
{0x14, 0x4a},
{0x15, 0x12},
{0x16, 0x12},
{0x18, 0x00},
{0x19, 0x77},
{0x1a, 0x55},
{0x1b, 0x13},
{0x1c, 0x00},
{0x1d, 0x00},
{0x1e, 0x13},
{0x1f, 0x00},
{0x23, 0x00},
{0x24, 0x00},
{0x25, 0x00},
{0x26, 0x00},
{0x27, 0x00},
{0x28, 0x00},
{0x35, 0x00},
{0x66, 0x00},
{0x58, 0x82},
{0x59, 0x02},
{0x5a, 0x02},
{0x5b, 0x02},
{0x5c, 0x82},
{0x5d, 0x82},
{0x5e, 0x02},
{0x5f, 0x02},
{0x72, 0x31},
/* Select CMD2 Page4 (Undocumented) */
{0xff, 0x05},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
{0x00, 0x01},
{0x01, 0x0b},
{0x02, 0x0c},
{0x03, 0x09},
{0x04, 0x0a},
{0x05, 0x00},
{0x06, 0x0f},
{0x07, 0x10},
{0x08, 0x00},
{0x09, 0x00},
{0x0a, 0x00},
{0x0b, 0x00},
{0x0c, 0x00},
{0x0d, 0x13},
{0x0e, 0x15},
{0x0f, 0x17},
{0x10, 0x01},
{0x11, 0x0b},
{0x12, 0x0c},
{0x13, 0x09},
{0x14, 0x0a},
{0x15, 0x00},
{0x16, 0x0f},
{0x17, 0x10},
{0x18, 0x00},
{0x19, 0x00},
{0x1a, 0x00},
{0x1b, 0x00},
{0x1c, 0x00},
{0x1d, 0x13},
{0x1e, 0x15},
{0x1f, 0x17},
{0x20, 0x00},
{0x21, 0x03},
{0x22, 0x01},
{0x23, 0x40},
{0x24, 0x40},
{0x25, 0xed},
{0x29, 0x58},
{0x2a, 0x12},
{0x2b, 0x01},
{0x4b, 0x06},
{0x4c, 0x11},
{0x4d, 0x20},
{0x4e, 0x02},
{0x4f, 0x02},
{0x50, 0x20},
{0x51, 0x61},
{0x52, 0x01},
{0x53, 0x63},
{0x54, 0x77},
{0x55, 0xed},
{0x5b, 0x00},
{0x5c, 0x00},
{0x5d, 0x00},
{0x5e, 0x00},
{0x5f, 0x15},
{0x60, 0x75},
{0x61, 0x00},
{0x62, 0x00},
{0x63, 0x00},
{0x64, 0x00},
{0x65, 0x00},
{0x66, 0x00},
{0x67, 0x00},
{0x68, 0x04},
{0x69, 0x00},
{0x6a, 0x00},
{0x6c, 0x40},
{0x75, 0x01},
{0x76, 0x01},
{0x7a, 0x80},
{0x7b, 0xa3},
{0x7c, 0xd8},
{0x7d, 0x60},
{0x7f, 0x15},
{0x80, 0x81},
{0x83, 0x05},
{0x93, 0x08},
{0x94, 0x10},
{0x8a, 0x00},
{0x9b, 0x0f},
{0xea, 0xff},
{0xec, 0x00},
/* Select CMD2 Page0 (Undocumented) */
{0xff, 0x01},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
{0x75, 0x00},
{0x76, 0xdf},
{0x77, 0x00},
{0x78, 0xe4},
{0x79, 0x00},
{0x7a, 0xed},
{0x7b, 0x00},
{0x7c, 0xf6},
{0x7d, 0x00},
{0x7e, 0xff},
{0x7f, 0x01},
{0x80, 0x07},
{0x81, 0x01},
{0x82, 0x10},
{0x83, 0x01},
{0x84, 0x18},
{0x85, 0x01},
{0x86, 0x20},
{0x87, 0x01},
{0x88, 0x3d},
{0x89, 0x01},
{0x8a, 0x56},
{0x8b, 0x01},
{0x8c, 0x84},
{0x8d, 0x01},
{0x8e, 0xab},
{0x8f, 0x01},
{0x90, 0xec},
{0x91, 0x02},
{0x92, 0x22},
{0x93, 0x02},
{0x94, 0x23},
{0x95, 0x02},
{0x96, 0x55},
{0x97, 0x02},
{0x98, 0x8b},
{0x99, 0x02},
{0x9a, 0xaf},
{0x9b, 0x02},
{0x9c, 0xdf},
{0x9d, 0x03},
{0x9e, 0x01},
{0x9f, 0x03},
{0xa0, 0x2c},
{0xa2, 0x03},
{0xa3, 0x39},
{0xa4, 0x03},
{0xa5, 0x47},
{0xa6, 0x03},
{0xa7, 0x56},
{0xa9, 0x03},
{0xaa, 0x66},
{0xab, 0x03},
{0xac, 0x76},
{0xad, 0x03},
{0xae, 0x85},
{0xaf, 0x03},
{0xb0, 0x90},
{0xb1, 0x03},
{0xb2, 0xcb},
{0xb3, 0x00},
{0xb4, 0xdf},
{0xb5, 0x00},
{0xb6, 0xe4},
{0xb7, 0x00},
{0xb8, 0xed},
{0xb9, 0x00},
{0xba, 0xf6},
{0xbb, 0x00},
{0xbc, 0xff},
{0xbd, 0x01},
{0xbe, 0x07},
{0xbf, 0x01},
{0xc0, 0x10},
{0xc1, 0x01},
{0xc2, 0x18},
{0xc3, 0x01},
{0xc4, 0x20},
{0xc5, 0x01},
{0xc6, 0x3d},
{0xc7, 0x01},
{0xc8, 0x56},
{0xc9, 0x01},
{0xca, 0x84},
{0xcb, 0x01},
{0xcc, 0xab},
{0xcd, 0x01},
{0xce, 0xec},
{0xcf, 0x02},
{0xd0, 0x22},
{0xd1, 0x02},
{0xd2, 0x23},
{0xd3, 0x02},
{0xd4, 0x55},
{0xd5, 0x02},
{0xd6, 0x8b},
{0xd7, 0x02},
{0xd8, 0xaf},
{0xd9, 0x02},
{0xda, 0xdf},
{0xdb, 0x03},
{0xdc, 0x01},
{0xdd, 0x03},
{0xde, 0x2c},
{0xdf, 0x03},
{0xe0, 0x39},
{0xe1, 0x03},
{0xe2, 0x47},
{0xe3, 0x03},
{0xe4, 0x56},
{0xe5, 0x03},
{0xe6, 0x66},
{0xe7, 0x03},
{0xe8, 0x76},
{0xe9, 0x03},
{0xea, 0x85},
{0xeb, 0x03},
{0xec, 0x90},
{0xed, 0x03},
{0xee, 0xcb},
{0xef, 0x00},
{0xf0, 0xbb},
{0xf1, 0x00},
{0xf2, 0xc0},
{0xf3, 0x00},
{0xf4, 0xcc},
{0xf5, 0x00},
{0xf6, 0xd6},
{0xf7, 0x00},
{0xf8, 0xe1},
{0xf9, 0x00},
{0xfa, 0xea},
/* Select CMD2 Page2 (Undocumented) */
{0xff, 0x02},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
{0x00, 0x00},
{0x01, 0xf4},
{0x02, 0x00},
{0x03, 0xef},
{0x04, 0x01},
{0x05, 0x07},
{0x06, 0x01},
{0x07, 0x28},
{0x08, 0x01},
{0x09, 0x44},
{0x0a, 0x01},
{0x0b, 0x76},
{0x0c, 0x01},
{0x0d, 0xa0},
{0x0e, 0x01},
{0x0f, 0xe7},
{0x10, 0x02},
{0x11, 0x1f},
{0x12, 0x02},
{0x13, 0x22},
{0x14, 0x02},
{0x15, 0x54},
{0x16, 0x02},
{0x17, 0x8b},
{0x18, 0x02},
{0x19, 0xaf},
{0x1a, 0x02},
{0x1b, 0xe0},
{0x1c, 0x03},
{0x1d, 0x01},
{0x1e, 0x03},
{0x1f, 0x2d},
{0x20, 0x03},
{0x21, 0x39},
{0x22, 0x03},
{0x23, 0x47},
{0x24, 0x03},
{0x25, 0x57},
{0x26, 0x03},
{0x27, 0x65},
{0x28, 0x03},
{0x29, 0x77},
{0x2a, 0x03},
{0x2b, 0x85},
{0x2d, 0x03},
{0x2f, 0x8f},
{0x30, 0x03},
{0x31, 0xcb},
{0x32, 0x00},
{0x33, 0xbb},
{0x34, 0x00},
{0x35, 0xc0},
{0x36, 0x00},
{0x37, 0xcc},
{0x38, 0x00},
{0x39, 0xd6},
{0x3a, 0x00},
{0x3b, 0xe1},
{0x3d, 0x00},
{0x3f, 0xea},
{0x40, 0x00},
{0x41, 0xf4},
{0x42, 0x00},
{0x43, 0xfe},
{0x44, 0x01},
{0x45, 0x07},
{0x46, 0x01},
{0x47, 0x28},
{0x48, 0x01},
{0x49, 0x44},
{0x4a, 0x01},
{0x4b, 0x76},
{0x4c, 0x01},
{0x4d, 0xa0},
{0x4e, 0x01},
{0x4f, 0xe7},
{0x50, 0x02},
{0x51, 0x1f},
{0x52, 0x02},
{0x53, 0x22},
{0x54, 0x02},
{0x55, 0x54},
{0x56, 0x02},
{0x58, 0x8b},
{0x59, 0x02},
{0x5a, 0xaf},
{0x5b, 0x02},
{0x5c, 0xe0},
{0x5d, 0x03},
{0x5e, 0x01},
{0x5f, 0x03},
{0x60, 0x2d},
{0x61, 0x03},
{0x62, 0x39},
{0x63, 0x03},
{0x64, 0x47},
{0x65, 0x03},
{0x66, 0x57},
{0x67, 0x03},
{0x68, 0x65},
{0x69, 0x03},
{0x6a, 0x77},
{0x6b, 0x03},
{0x6c, 0x85},
{0x6d, 0x03},
{0x6e, 0x8f},
{0x6f, 0x03},
{0x70, 0xcb},
{0x71, 0x00},
{0x72, 0x00},
{0x73, 0x00},
{0x74, 0x21},
{0x75, 0x00},
{0x76, 0x4c},
{0x77, 0x00},
{0x78, 0x6b},
{0x79, 0x00},
{0x7a, 0x85},
{0x7b, 0x00},
{0x7c, 0x9a},
{0x7d, 0x00},
{0x7e, 0xad},
{0x7f, 0x00},
{0x80, 0xbe},
{0x81, 0x00},
{0x82, 0xcd},
{0x83, 0x01},
{0x84, 0x01},
{0x85, 0x01},
{0x86, 0x29},
{0x87, 0x01},
{0x88, 0x68},
{0x89, 0x01},
{0x8a, 0x98},
{0x8b, 0x01},
{0x8c, 0xe5},
{0x8d, 0x02},
{0x8e, 0x1e},
{0x8f, 0x02},
{0x90, 0x30},
{0x91, 0x02},
{0x92, 0x52},
{0x93, 0x02},
{0x94, 0x88},
{0x95, 0x02},
{0x96, 0xaa},
{0x97, 0x02},
{0x98, 0xd7},
{0x99, 0x02},
{0x9a, 0xf7},
{0x9b, 0x03},
{0x9c, 0x21},
{0x9d, 0x03},
{0x9e, 0x2e},
{0x9f, 0x03},
{0xa0, 0x3d},
{0xa2, 0x03},
{0xa3, 0x4c},
{0xa4, 0x03},
{0xa5, 0x5e},
{0xa6, 0x03},
{0xa7, 0x71},
{0xa9, 0x03},
{0xaa, 0x86},
{0xab, 0x03},
{0xac, 0x94},
{0xad, 0x03},
{0xae, 0xfa},
{0xaf, 0x00},
{0xb0, 0x00},
{0xb1, 0x00},
{0xb2, 0x21},
{0xb3, 0x00},
{0xb4, 0x4c},
{0xb5, 0x00},
{0xb6, 0x6b},
{0xb7, 0x00},
{0xb8, 0x85},
{0xb9, 0x00},
{0xba, 0x9a},
{0xbb, 0x00},
{0xbc, 0xad},
{0xbd, 0x00},
{0xbe, 0xbe},
{0xbf, 0x00},
{0xc0, 0xcd},
{0xc1, 0x01},
{0xc2, 0x01},
{0xc3, 0x01},
{0xc4, 0x29},
{0xc5, 0x01},
{0xc6, 0x68},
{0xc7, 0x01},
{0xc8, 0x98},
{0xc9, 0x01},
{0xca, 0xe5},
{0xcb, 0x02},
{0xcc, 0x1e},
{0xcd, 0x02},
{0xce, 0x20},
{0xcf, 0x02},
{0xd0, 0x52},
{0xd1, 0x02},
{0xd2, 0x88},
{0xd3, 0x02},
{0xd4, 0xaa},
{0xd5, 0x02},
{0xd6, 0xd7},
{0xd7, 0x02},
{0xd8, 0xf7},
{0xd9, 0x03},
{0xda, 0x21},
{0xdb, 0x03},
{0xdc, 0x2e},
{0xdd, 0x03},
{0xde, 0x3d},
{0xdf, 0x03},
{0xe0, 0x4c},
{0xe1, 0x03},
{0xe2, 0x5e},
{0xe3, 0x03},
{0xe4, 0x71},
{0xe5, 0x03},
{0xe6, 0x86},
{0xe7, 0x03},
{0xe8, 0x94},
{0xe9, 0x03},
{0xea, 0xfa},
/* Select CMD2 Page0 (Undocumented) */
{0xff, 0x01},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
/* Select CMD2 Page1 (Undocumented) */
{0xff, 0x02},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
/* Select CMD2 Page3 (Undocumented) */
{0xff, 0x04},
/* Reload CMD1: Don't reload default value to register */
{0xfb, 0x01},
/* Select CMD1 */
{0xff, 0x00},
{0xd3, 0x05}, /* RGBMIPICTRL: VSYNC back porch = 5 */
{0xd4, 0x04}, /* RGBMIPICTRL: VSYNC front porch = 4 */
};
static inline
struct khadas_ts050_panel *to_khadas_ts050_panel(struct drm_panel *panel)
{
return container_of(panel, struct khadas_ts050_panel, base);
}
static int khadas_ts050_panel_prepare(struct drm_panel *panel)
{
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
unsigned int i;
int err;
if (khadas_ts050->prepared)
return 0;
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 0);
err = regulator_enable(khadas_ts050->supply);
if (err < 0)
return err;
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 1);
msleep(60);
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 1);
usleep_range(10000, 11000);
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 0);
/* Select CMD2 page 4 (Undocumented) */
mipi_dsi_dcs_write(khadas_ts050->link, 0xff, (u8[]){ 0x05 }, 1);
/* Reload CMD1: Don't reload default value to register */
mipi_dsi_dcs_write(khadas_ts050->link, 0xfb, (u8[]){ 0x01 }, 1);
mipi_dsi_dcs_write(khadas_ts050->link, 0xc5, (u8[]){ 0x01 }, 1);
msleep(100);
for (i = 0; i < ARRAY_SIZE(init_code); i++) {
err = mipi_dsi_dcs_write(khadas_ts050->link,
init_code[i].cmd,
&init_code[i].data, 1);
if (err < 0) {
dev_err(panel->dev, "failed write cmds: %d\n", err);
goto poweroff;
}
}
err = mipi_dsi_dcs_exit_sleep_mode(khadas_ts050->link);
if (err < 0) {
dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
goto poweroff;
}
msleep(120);
/* Select CMD1 */
mipi_dsi_dcs_write(khadas_ts050->link, 0xff, (u8[]){ 0x00 }, 1);
err = mipi_dsi_dcs_set_tear_on(khadas_ts050->link,
MIPI_DSI_DCS_TEAR_MODE_VBLANK);
if (err < 0) {
dev_err(panel->dev, "failed to set tear on: %d\n", err);
goto poweroff;
}
err = mipi_dsi_dcs_set_display_on(khadas_ts050->link);
if (err < 0) {
dev_err(panel->dev, "failed to set display on: %d\n", err);
goto poweroff;
}
usleep_range(10000, 11000);
khadas_ts050->prepared = true;
return 0;
poweroff:
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 0);
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 1);
regulator_disable(khadas_ts050->supply);
return err;
}
static int khadas_ts050_panel_unprepare(struct drm_panel *panel)
{
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
int err;
if (!khadas_ts050->prepared)
return 0;
khadas_ts050->prepared = false;
err = mipi_dsi_dcs_enter_sleep_mode(khadas_ts050->link);
if (err < 0)
dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
msleep(150);
gpiod_set_value_cansleep(khadas_ts050->enable_gpio, 0);
gpiod_set_value_cansleep(khadas_ts050->reset_gpio, 1);
err = regulator_disable(khadas_ts050->supply);
if (err < 0)
return err;
return 0;
}
static int khadas_ts050_panel_enable(struct drm_panel *panel)
{
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
khadas_ts050->enabled = true;
return 0;
}
static int khadas_ts050_panel_disable(struct drm_panel *panel)
{
struct khadas_ts050_panel *khadas_ts050 = to_khadas_ts050_panel(panel);
int err;
if (!khadas_ts050->enabled)
return 0;
err = mipi_dsi_dcs_set_display_off(khadas_ts050->link);
if (err < 0)
dev_err(panel->dev, "failed to set display off: %d\n", err);
usleep_range(10000, 11000);
khadas_ts050->enabled = false;
return 0;
}
static const struct drm_display_mode default_mode = {
.clock = 120000,
.hdisplay = 1088,
.hsync_start = 1088 + 104,
.hsync_end = 1088 + 104 + 4,
.htotal = 1088 + 104 + 4 + 127,
.vdisplay = 1920,
.vsync_start = 1920 + 4,
.vsync_end = 1920 + 4 + 2,
.vtotal = 1920 + 4 + 2 + 3,
.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
};
static int khadas_ts050_panel_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct drm_display_mode *mode;
mode = drm_mode_duplicate(connector->dev, &default_mode);
if (!mode) {
dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
default_mode.hdisplay, default_mode.vdisplay,
drm_mode_vrefresh(&default_mode));
return -ENOMEM;
}
drm_mode_set_name(mode);
drm_mode_probed_add(connector, mode);
connector->display_info.width_mm = 64;
connector->display_info.height_mm = 118;
connector->display_info.bpc = 8;
return 1;
}
static const struct drm_panel_funcs khadas_ts050_panel_funcs = {
.prepare = khadas_ts050_panel_prepare,
.unprepare = khadas_ts050_panel_unprepare,
.enable = khadas_ts050_panel_enable,
.disable = khadas_ts050_panel_disable,
.get_modes = khadas_ts050_panel_get_modes,
};
static const struct of_device_id khadas_ts050_of_match[] = {
{ .compatible = "khadas,ts050", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, khadas_ts050_of_match);
static int khadas_ts050_panel_add(struct khadas_ts050_panel *khadas_ts050)
{
struct device *dev = &khadas_ts050->link->dev;
int err;
khadas_ts050->supply = devm_regulator_get(dev, "power");
if (IS_ERR(khadas_ts050->supply))
return dev_err_probe(dev, PTR_ERR(khadas_ts050->supply),
"failed to get power supply");
khadas_ts050->reset_gpio = devm_gpiod_get(dev, "reset",
GPIOD_OUT_LOW);
if (IS_ERR(khadas_ts050->reset_gpio))
return dev_err_probe(dev, PTR_ERR(khadas_ts050->reset_gpio),
"failed to get reset gpio");
khadas_ts050->enable_gpio = devm_gpiod_get(dev, "enable",
GPIOD_OUT_HIGH);
if (IS_ERR(khadas_ts050->enable_gpio))
return dev_err_probe(dev, PTR_ERR(khadas_ts050->reset_gpio),
"failed to get enable gpio");
drm_panel_init(&khadas_ts050->base, &khadas_ts050->link->dev,
&khadas_ts050_panel_funcs, DRM_MODE_CONNECTOR_DSI);
err = drm_panel_of_backlight(&khadas_ts050->base);
if (err)
return err;
drm_panel_add(&khadas_ts050->base);
return 0;
}
static int khadas_ts050_panel_probe(struct mipi_dsi_device *dsi)
{
struct khadas_ts050_panel *khadas_ts050;
int err;
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET;
khadas_ts050 = devm_kzalloc(&dsi->dev, sizeof(*khadas_ts050),
GFP_KERNEL);
if (!khadas_ts050)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, khadas_ts050);
khadas_ts050->link = dsi;
err = khadas_ts050_panel_add(khadas_ts050);
if (err < 0)
return err;
err = mipi_dsi_attach(dsi);
if (err)
drm_panel_remove(&khadas_ts050->base);
return err;
}
static int khadas_ts050_panel_remove(struct mipi_dsi_device *dsi)
{
struct khadas_ts050_panel *khadas_ts050 = mipi_dsi_get_drvdata(dsi);
int err;
err = mipi_dsi_detach(dsi);
if (err < 0)
dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
drm_panel_remove(&khadas_ts050->base);
drm_panel_disable(&khadas_ts050->base);
drm_panel_unprepare(&khadas_ts050->base);
return 0;
}
static void khadas_ts050_panel_shutdown(struct mipi_dsi_device *dsi)
{
struct khadas_ts050_panel *khadas_ts050 = mipi_dsi_get_drvdata(dsi);
drm_panel_disable(&khadas_ts050->base);
drm_panel_unprepare(&khadas_ts050->base);
}
static struct mipi_dsi_driver khadas_ts050_panel_driver = {
.driver = {
.name = "panel-khadas-ts050",
.of_match_table = khadas_ts050_of_match,
},
.probe = khadas_ts050_panel_probe,
.remove = khadas_ts050_panel_remove,
.shutdown = khadas_ts050_panel_shutdown,
};
module_mipi_dsi_driver(khadas_ts050_panel_driver);
MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
MODULE_DESCRIPTION("Khadas TS050 panel driver");
MODULE_LICENSE("GPL v2");
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