drm/panel: Add Kingdisplay KD097D04 panel driver
Support Kingdisplay KD097D04 9.7" 1536x2048 TFT LCD panel, it is a MIPI dual-DSI panel. v4-resend: - Thierry noted missing dt-bindings for v4 but forgot that he already had applied them one kernel release back in https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ebc950fdff6d5f9250cd5a5a348af97f7d8508df v4: - address Philipp's comments - real range for usleep_range and - poweroff ordering in kingdisplay_panel_prepare - return value beautification in panel_probe - update author naming for full name v3: - address Thierry's comments - error handling for init dsi writes in init - unconditionally remove the panel - don't use drm_panel_detach - a bit of variable signednes wiggling - I did talk to ChromeOS people and the delays really should be as short as possible, so dropped the 100ms from the delay comments v2: - update timing + cmds from chromeos kernel - new backlight API including switch to devm_of_find_backlight - fix most of Sean Paul's comments enable/prepare tracking seems something all panels do - document origins of the init sequence - lanes per dsi interface to 4 (two interfaces). Matches how tegra and pending rockchip dual-dsi handle (dual-)dsi lanes - spdx header instead of license boilerplate Signed-off-by: Nickey Yang <nickey.yang@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Sean Paul <sean@poorly.run> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181030091528.28211-1-heiko@sntech.de
This commit is contained in:
Nickey Yang
Thierry Reding
parent
849b2e3ff9
commit
2a994cbed6
|
|
@ -77,6 +77,17 @@ config DRM_PANEL_JDI_LT070ME05000
|
|||
The panel has a 1200(RGB)×1920 (WUXGA) resolution and uses
|
||||
24 bit per pixel.
|
||||
|
||||
config DRM_PANEL_KINGDISPLAY_KD097D04
|
||||
tristate "Kingdisplay kd097d04 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 Kingdisplay kd097d04
|
||||
TFT-LCD modules. The panel has a 1536x2048 resolution and uses
|
||||
24 bit RGB per pixel. It provides a MIPI DSI interface to
|
||||
the host and has a built-in LED backlight.
|
||||
|
||||
config DRM_PANEL_SAMSUNG_LD9040
|
||||
tristate "Samsung LD9040 RGB/SPI panel"
|
||||
depends on OF && SPI
|
||||
|
|
|
|||
|
|
@ -6,6 +6,7 @@ obj-$(CONFIG_DRM_PANEL_ILITEK_IL9322) += panel-ilitek-ili9322.o
|
|||
obj-$(CONFIG_DRM_PANEL_ILITEK_ILI9881C) += panel-ilitek-ili9881c.o
|
||||
obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
|
||||
obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o
|
||||
obj-$(CONFIG_DRM_PANEL_KINGDISPLAY_KD097D04) += panel-kingdisplay-kd097d04.o
|
||||
obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
|
||||
obj-$(CONFIG_DRM_PANEL_OLIMEX_LCD_OLINUXINO) += panel-olimex-lcd-olinuxino.o
|
||||
obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,473 @@
|
|||
// SPDX-License-Identifier: GPL-2.0+
|
||||
/*
|
||||
* Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
|
||||
*/
|
||||
|
||||
#include <linux/backlight.h>
|
||||
#include <linux/gpio/consumer.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
|
||||
#include <drm/drmP.h>
|
||||
#include <drm/drm_crtc.h>
|
||||
#include <drm/drm_mipi_dsi.h>
|
||||
#include <drm/drm_panel.h>
|
||||
|
||||
#include <video/mipi_display.h>
|
||||
|
||||
struct kingdisplay_panel {
|
||||
struct drm_panel base;
|
||||
struct mipi_dsi_device *link;
|
||||
|
||||
struct backlight_device *backlight;
|
||||
struct regulator *supply;
|
||||
struct gpio_desc *enable_gpio;
|
||||
|
||||
bool prepared;
|
||||
bool enabled;
|
||||
};
|
||||
|
||||
struct kingdisplay_panel_cmd {
|
||||
char cmd;
|
||||
char data;
|
||||
};
|
||||
|
||||
/*
|
||||
* According to the discussion on
|
||||
* https://review.coreboot.org/#/c/coreboot/+/22472/
|
||||
* the panel init array is not part of the panels datasheet but instead
|
||||
* just came in this form from the panel vendor.
|
||||
*/
|
||||
static const struct kingdisplay_panel_cmd init_code[] = {
|
||||
/* voltage setting */
|
||||
{ 0xB0, 0x00 },
|
||||
{ 0xB2, 0x02 },
|
||||
{ 0xB3, 0x11 },
|
||||
{ 0xB4, 0x00 },
|
||||
{ 0xB6, 0x80 },
|
||||
/* VCOM disable */
|
||||
{ 0xB7, 0x02 },
|
||||
{ 0xB8, 0x80 },
|
||||
{ 0xBA, 0x43 },
|
||||
/* VCOM setting */
|
||||
{ 0xBB, 0x53 },
|
||||
/* VSP setting */
|
||||
{ 0xBC, 0x0A },
|
||||
/* VSN setting */
|
||||
{ 0xBD, 0x4A },
|
||||
/* VGH setting */
|
||||
{ 0xBE, 0x2F },
|
||||
/* VGL setting */
|
||||
{ 0xBF, 0x1A },
|
||||
{ 0xF0, 0x39 },
|
||||
{ 0xF1, 0x22 },
|
||||
/* Gamma setting */
|
||||
{ 0xB0, 0x02 },
|
||||
{ 0xC0, 0x00 },
|
||||
{ 0xC1, 0x01 },
|
||||
{ 0xC2, 0x0B },
|
||||
{ 0xC3, 0x15 },
|
||||
{ 0xC4, 0x22 },
|
||||
{ 0xC5, 0x11 },
|
||||
{ 0xC6, 0x15 },
|
||||
{ 0xC7, 0x19 },
|
||||
{ 0xC8, 0x1A },
|
||||
{ 0xC9, 0x16 },
|
||||
{ 0xCA, 0x18 },
|
||||
{ 0xCB, 0x13 },
|
||||
{ 0xCC, 0x18 },
|
||||
{ 0xCD, 0x13 },
|
||||
{ 0xCE, 0x1C },
|
||||
{ 0xCF, 0x19 },
|
||||
{ 0xD0, 0x21 },
|
||||
{ 0xD1, 0x2C },
|
||||
{ 0xD2, 0x2F },
|
||||
{ 0xD3, 0x30 },
|
||||
{ 0xD4, 0x19 },
|
||||
{ 0xD5, 0x1F },
|
||||
{ 0xD6, 0x00 },
|
||||
{ 0xD7, 0x01 },
|
||||
{ 0xD8, 0x0B },
|
||||
{ 0xD9, 0x15 },
|
||||
{ 0xDA, 0x22 },
|
||||
{ 0xDB, 0x11 },
|
||||
{ 0xDC, 0x15 },
|
||||
{ 0xDD, 0x19 },
|
||||
{ 0xDE, 0x1A },
|
||||
{ 0xDF, 0x16 },
|
||||
{ 0xE0, 0x18 },
|
||||
{ 0xE1, 0x13 },
|
||||
{ 0xE2, 0x18 },
|
||||
{ 0xE3, 0x13 },
|
||||
{ 0xE4, 0x1C },
|
||||
{ 0xE5, 0x19 },
|
||||
{ 0xE6, 0x21 },
|
||||
{ 0xE7, 0x2C },
|
||||
{ 0xE8, 0x2F },
|
||||
{ 0xE9, 0x30 },
|
||||
{ 0xEA, 0x19 },
|
||||
{ 0xEB, 0x1F },
|
||||
/* GOA MUX setting */
|
||||
{ 0xB0, 0x01 },
|
||||
{ 0xC0, 0x10 },
|
||||
{ 0xC1, 0x0F },
|
||||
{ 0xC2, 0x0E },
|
||||
{ 0xC3, 0x0D },
|
||||
{ 0xC4, 0x0C },
|
||||
{ 0xC5, 0x0B },
|
||||
{ 0xC6, 0x0A },
|
||||
{ 0xC7, 0x09 },
|
||||
{ 0xC8, 0x08 },
|
||||
{ 0xC9, 0x07 },
|
||||
{ 0xCA, 0x06 },
|
||||
{ 0xCB, 0x05 },
|
||||
{ 0xCC, 0x00 },
|
||||
{ 0xCD, 0x01 },
|
||||
{ 0xCE, 0x02 },
|
||||
{ 0xCF, 0x03 },
|
||||
{ 0xD0, 0x04 },
|
||||
{ 0xD6, 0x10 },
|
||||
{ 0xD7, 0x0F },
|
||||
{ 0xD8, 0x0E },
|
||||
{ 0xD9, 0x0D },
|
||||
{ 0xDA, 0x0C },
|
||||
{ 0xDB, 0x0B },
|
||||
{ 0xDC, 0x0A },
|
||||
{ 0xDD, 0x09 },
|
||||
{ 0xDE, 0x08 },
|
||||
{ 0xDF, 0x07 },
|
||||
{ 0xE0, 0x06 },
|
||||
{ 0xE1, 0x05 },
|
||||
{ 0xE2, 0x00 },
|
||||
{ 0xE3, 0x01 },
|
||||
{ 0xE4, 0x02 },
|
||||
{ 0xE5, 0x03 },
|
||||
{ 0xE6, 0x04 },
|
||||
{ 0xE7, 0x00 },
|
||||
{ 0xEC, 0xC0 },
|
||||
/* GOA timing setting */
|
||||
{ 0xB0, 0x03 },
|
||||
{ 0xC0, 0x01 },
|
||||
{ 0xC2, 0x6F },
|
||||
{ 0xC3, 0x6F },
|
||||
{ 0xC5, 0x36 },
|
||||
{ 0xC8, 0x08 },
|
||||
{ 0xC9, 0x04 },
|
||||
{ 0xCA, 0x41 },
|
||||
{ 0xCC, 0x43 },
|
||||
{ 0xCF, 0x60 },
|
||||
{ 0xD2, 0x04 },
|
||||
{ 0xD3, 0x04 },
|
||||
{ 0xD4, 0x03 },
|
||||
{ 0xD5, 0x02 },
|
||||
{ 0xD6, 0x01 },
|
||||
{ 0xD7, 0x00 },
|
||||
{ 0xDB, 0x01 },
|
||||
{ 0xDE, 0x36 },
|
||||
{ 0xE6, 0x6F },
|
||||
{ 0xE7, 0x6F },
|
||||
/* GOE setting */
|
||||
{ 0xB0, 0x06 },
|
||||
{ 0xB8, 0xA5 },
|
||||
{ 0xC0, 0xA5 },
|
||||
{ 0xD5, 0x3F },
|
||||
};
|
||||
|
||||
static inline
|
||||
struct kingdisplay_panel *to_kingdisplay_panel(struct drm_panel *panel)
|
||||
{
|
||||
return container_of(panel, struct kingdisplay_panel, base);
|
||||
}
|
||||
|
||||
static int kingdisplay_panel_disable(struct drm_panel *panel)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
|
||||
int err;
|
||||
|
||||
if (!kingdisplay->enabled)
|
||||
return 0;
|
||||
|
||||
backlight_disable(kingdisplay->backlight);
|
||||
|
||||
err = mipi_dsi_dcs_set_display_off(kingdisplay->link);
|
||||
if (err < 0)
|
||||
DRM_DEV_ERROR(panel->dev, "failed to set display off: %d\n",
|
||||
err);
|
||||
|
||||
kingdisplay->enabled = false;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int kingdisplay_panel_unprepare(struct drm_panel *panel)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
|
||||
int err;
|
||||
|
||||
if (!kingdisplay->prepared)
|
||||
return 0;
|
||||
|
||||
err = mipi_dsi_dcs_enter_sleep_mode(kingdisplay->link);
|
||||
if (err < 0) {
|
||||
DRM_DEV_ERROR(panel->dev, "failed to enter sleep mode: %d\n",
|
||||
err);
|
||||
return err;
|
||||
}
|
||||
|
||||
/* T15: 120ms */
|
||||
msleep(120);
|
||||
|
||||
gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
|
||||
|
||||
err = regulator_disable(kingdisplay->supply);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
kingdisplay->prepared = false;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int kingdisplay_panel_prepare(struct drm_panel *panel)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
|
||||
int err, regulator_err;
|
||||
unsigned int i;
|
||||
|
||||
if (kingdisplay->prepared)
|
||||
return 0;
|
||||
|
||||
gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
|
||||
|
||||
err = regulator_enable(kingdisplay->supply);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
/* T2: 15ms */
|
||||
usleep_range(15000, 16000);
|
||||
|
||||
gpiod_set_value_cansleep(kingdisplay->enable_gpio, 1);
|
||||
|
||||
/* T4: 15ms */
|
||||
usleep_range(15000, 16000);
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(init_code); i++) {
|
||||
err = mipi_dsi_generic_write(kingdisplay->link, &init_code[i],
|
||||
sizeof(struct kingdisplay_panel_cmd));
|
||||
if (err < 0) {
|
||||
DRM_DEV_ERROR(panel->dev, "failed write init cmds: %d\n",
|
||||
err);
|
||||
goto poweroff;
|
||||
}
|
||||
}
|
||||
|
||||
err = mipi_dsi_dcs_exit_sleep_mode(kingdisplay->link);
|
||||
if (err < 0) {
|
||||
DRM_DEV_ERROR(panel->dev, "failed to exit sleep mode: %d\n",
|
||||
err);
|
||||
goto poweroff;
|
||||
}
|
||||
|
||||
/* T6: 120ms */
|
||||
msleep(120);
|
||||
|
||||
err = mipi_dsi_dcs_set_display_on(kingdisplay->link);
|
||||
if (err < 0) {
|
||||
DRM_DEV_ERROR(panel->dev, "failed to set display on: %d\n",
|
||||
err);
|
||||
goto poweroff;
|
||||
}
|
||||
|
||||
/* T7: 10ms */
|
||||
usleep_range(10000, 11000);
|
||||
|
||||
kingdisplay->prepared = true;
|
||||
|
||||
return 0;
|
||||
|
||||
poweroff:
|
||||
gpiod_set_value_cansleep(kingdisplay->enable_gpio, 0);
|
||||
|
||||
regulator_err = regulator_disable(kingdisplay->supply);
|
||||
if (regulator_err)
|
||||
DRM_DEV_ERROR(panel->dev, "failed to disable regulator: %d\n",
|
||||
regulator_err);
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
static int kingdisplay_panel_enable(struct drm_panel *panel)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = to_kingdisplay_panel(panel);
|
||||
int ret;
|
||||
|
||||
if (kingdisplay->enabled)
|
||||
return 0;
|
||||
|
||||
ret = backlight_enable(kingdisplay->backlight);
|
||||
if (ret) {
|
||||
DRM_DEV_ERROR(panel->drm->dev,
|
||||
"Failed to enable backlight %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
kingdisplay->enabled = true;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct drm_display_mode default_mode = {
|
||||
.clock = 229000,
|
||||
.hdisplay = 1536,
|
||||
.hsync_start = 1536 + 100,
|
||||
.hsync_end = 1536 + 100 + 24,
|
||||
.htotal = 1536 + 100 + 24 + 100,
|
||||
.vdisplay = 2048,
|
||||
.vsync_start = 2048 + 95,
|
||||
.vsync_end = 2048 + 95 + 2,
|
||||
.vtotal = 2048 + 95 + 2 + 23,
|
||||
.vrefresh = 60,
|
||||
};
|
||||
|
||||
static int kingdisplay_panel_get_modes(struct drm_panel *panel)
|
||||
{
|
||||
struct drm_display_mode *mode;
|
||||
|
||||
mode = drm_mode_duplicate(panel->drm, &default_mode);
|
||||
if (!mode) {
|
||||
DRM_DEV_ERROR(panel->drm->dev, "failed to add mode %ux%ux@%u\n",
|
||||
default_mode.hdisplay, default_mode.vdisplay,
|
||||
default_mode.vrefresh);
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
drm_mode_set_name(mode);
|
||||
|
||||
drm_mode_probed_add(panel->connector, mode);
|
||||
|
||||
panel->connector->display_info.width_mm = 147;
|
||||
panel->connector->display_info.height_mm = 196;
|
||||
panel->connector->display_info.bpc = 8;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static const struct drm_panel_funcs kingdisplay_panel_funcs = {
|
||||
.disable = kingdisplay_panel_disable,
|
||||
.unprepare = kingdisplay_panel_unprepare,
|
||||
.prepare = kingdisplay_panel_prepare,
|
||||
.enable = kingdisplay_panel_enable,
|
||||
.get_modes = kingdisplay_panel_get_modes,
|
||||
};
|
||||
|
||||
static const struct of_device_id kingdisplay_of_match[] = {
|
||||
{ .compatible = "kingdisplay,kd097d04", },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, kingdisplay_of_match);
|
||||
|
||||
static int kingdisplay_panel_add(struct kingdisplay_panel *kingdisplay)
|
||||
{
|
||||
struct device *dev = &kingdisplay->link->dev;
|
||||
int err;
|
||||
|
||||
kingdisplay->supply = devm_regulator_get(dev, "power");
|
||||
if (IS_ERR(kingdisplay->supply))
|
||||
return PTR_ERR(kingdisplay->supply);
|
||||
|
||||
kingdisplay->enable_gpio = devm_gpiod_get_optional(dev, "enable",
|
||||
GPIOD_OUT_HIGH);
|
||||
if (IS_ERR(kingdisplay->enable_gpio)) {
|
||||
err = PTR_ERR(kingdisplay->enable_gpio);
|
||||
dev_dbg(dev, "failed to get enable gpio: %d\n", err);
|
||||
kingdisplay->enable_gpio = NULL;
|
||||
}
|
||||
|
||||
kingdisplay->backlight = devm_of_find_backlight(dev);
|
||||
if (IS_ERR(kingdisplay->backlight))
|
||||
return PTR_ERR(kingdisplay->backlight);
|
||||
|
||||
drm_panel_init(&kingdisplay->base);
|
||||
kingdisplay->base.funcs = &kingdisplay_panel_funcs;
|
||||
kingdisplay->base.dev = &kingdisplay->link->dev;
|
||||
|
||||
return drm_panel_add(&kingdisplay->base);
|
||||
}
|
||||
|
||||
static void kingdisplay_panel_del(struct kingdisplay_panel *kingdisplay)
|
||||
{
|
||||
drm_panel_remove(&kingdisplay->base);
|
||||
}
|
||||
|
||||
static int kingdisplay_panel_probe(struct mipi_dsi_device *dsi)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay;
|
||||
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;
|
||||
|
||||
kingdisplay = devm_kzalloc(&dsi->dev, sizeof(*kingdisplay), GFP_KERNEL);
|
||||
if (!kingdisplay)
|
||||
return -ENOMEM;
|
||||
|
||||
mipi_dsi_set_drvdata(dsi, kingdisplay);
|
||||
kingdisplay->link = dsi;
|
||||
|
||||
err = kingdisplay_panel_add(kingdisplay);
|
||||
if (err < 0)
|
||||
return err;
|
||||
|
||||
return mipi_dsi_attach(dsi);
|
||||
}
|
||||
|
||||
static int kingdisplay_panel_remove(struct mipi_dsi_device *dsi)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
|
||||
int err;
|
||||
|
||||
err = kingdisplay_panel_unprepare(&kingdisplay->base);
|
||||
if (err < 0)
|
||||
DRM_DEV_ERROR(&dsi->dev, "failed to unprepare panel: %d\n",
|
||||
err);
|
||||
|
||||
err = kingdisplay_panel_disable(&kingdisplay->base);
|
||||
if (err < 0)
|
||||
DRM_DEV_ERROR(&dsi->dev, "failed to disable panel: %d\n", err);
|
||||
|
||||
err = mipi_dsi_detach(dsi);
|
||||
if (err < 0)
|
||||
DRM_DEV_ERROR(&dsi->dev, "failed to detach from DSI host: %d\n",
|
||||
err);
|
||||
|
||||
kingdisplay_panel_del(kingdisplay);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void kingdisplay_panel_shutdown(struct mipi_dsi_device *dsi)
|
||||
{
|
||||
struct kingdisplay_panel *kingdisplay = mipi_dsi_get_drvdata(dsi);
|
||||
|
||||
kingdisplay_panel_unprepare(&kingdisplay->base);
|
||||
kingdisplay_panel_disable(&kingdisplay->base);
|
||||
}
|
||||
|
||||
static struct mipi_dsi_driver kingdisplay_panel_driver = {
|
||||
.driver = {
|
||||
.name = "panel-kingdisplay-kd097d04",
|
||||
.of_match_table = kingdisplay_of_match,
|
||||
},
|
||||
.probe = kingdisplay_panel_probe,
|
||||
.remove = kingdisplay_panel_remove,
|
||||
.shutdown = kingdisplay_panel_shutdown,
|
||||
};
|
||||
module_mipi_dsi_driver(kingdisplay_panel_driver);
|
||||
|
||||
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
|
||||
MODULE_AUTHOR("Nickey Yang <nickey.yang@rock-chips.com>");
|
||||
MODULE_DESCRIPTION("kingdisplay KD097D04 panel driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
Loading…
Reference in New Issue