lkml.org 
[lkml]   [2019]   [Jun]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[2/2] drm/panel: support for AUO kd101n80-45na wuxga dsi video mode panel
Date
Add driver for AUO kd101n80-45na panel.
This panel supports the resolution 1200x1920, dsi video mode
and 4 lanes.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
drivers/gpu/drm/panel/Kconfig | 10 +
drivers/gpu/drm/panel/Makefile | 1 +
.../gpu/drm/panel/panel-auo-kd101n80-45na.c | 352 ++++++++++++++++++
3 files changed, 363 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-auo-kd101n80-45na.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index e36dbb4df867..f5cd5af9ce42 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -272,4 +272,14 @@ config DRM_PANEL_TRULY_NT35597_WQXGA
help
Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI
Video Mode panel
+
+config DRM_PANEL_AUO_KD101N80_45NA
+ tristate "AUO KD101N80_45NA 1200x1920 panel"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y here if you want to support for AUO KD101N80_45NA WUXGA PANEL
+ DSI Video Mode panel
+
endmenu
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 78e3dc376bdd..1056933bdf2e 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -28,3 +28,4 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o
obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o
+obj-$(CONFIG_DRM_PANEL_AUO_KD101N80_45NA) += panel-auo-kd101n80-45na.o
diff --git a/drivers/gpu/drm/panel/panel-auo-kd101n80-45na.c b/drivers/gpu/drm/panel/panel-auo-kd101n80-45na.c
new file mode 100644
index 000000000000..ab7bfc059e8a
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-auo-kd101n80-45na.c
@@ -0,0 +1,352 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Jitao Shi <jitao.shi@mediatek.com>
+ */
+
+#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 auo_panel {
+ struct drm_panel base;
+ struct mipi_dsi_device *dsi;
+
+ struct backlight_device *backlight;
+ struct regulator *pp1800;
+ struct regulator *avee;
+ struct regulator *avdd;
+ struct gpio_desc *enable_gpio;
+
+ bool prepared;
+ bool enabled;
+
+ const struct drm_display_mode *mode;
+};
+
+static inline struct auo_panel *to_auo_panel(struct drm_panel *panel)
+{
+ return container_of(panel, struct auo_panel, base);
+}
+
+static int auo_panel_init(struct auo_panel *auo)
+{
+ struct drm_panel *panel = &auo->base;
+ int err;
+
+ err = mipi_dsi_dcs_exit_sleep_mode(auo->dsi);
+ if (err < 0) {
+ DRM_DEV_ERROR(panel->dev, "failed to exit sleep mode: %d\n",
+ err);
+ return err;
+ }
+
+ /* T3.1*/
+ msleep(120);
+
+ err = mipi_dsi_dcs_set_display_on(auo->dsi);
+ if (err < 0) {
+ DRM_DEV_ERROR(panel->dev, "failed to set display on: %d\n",
+ err);
+ }
+ /* T3.1 + T3.2: > 200ms */
+ msleep(120);
+
+ return err;
+}
+
+static int auo_panel_off(struct auo_panel *auo)
+{
+ struct mipi_dsi_device *dsi = auo->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 auo_panel_disable(struct drm_panel *panel)
+{
+ struct auo_panel *auo = to_auo_panel(panel);
+
+ if (!auo->enabled)
+ return 0;
+
+ backlight_disable(auo->backlight);
+
+ auo->enabled = false;
+
+ return 0;
+}
+
+static int auo_panel_unprepare(struct drm_panel *panel)
+{
+ struct auo_panel *auo = to_auo_panel(panel);
+ int ret;
+
+ if (!auo->prepared)
+ return 0;
+
+ ret = auo_panel_off(auo);
+ if (ret < 0) {
+ dev_err(panel->dev, "failed to set panel off: %d\n", ret);
+ return ret;
+ }
+
+ msleep(150);
+ regulator_disable(auo->avee);
+ regulator_disable(auo->avdd);
+ usleep_range(5000, 7000);
+ regulator_disable(auo->pp1800);
+ if (auo->enable_gpio)
+ gpiod_set_value(auo->enable_gpio, 0);
+
+ auo->prepared = false;
+
+ return 0;
+}
+
+static int auo_panel_prepare(struct drm_panel *panel)
+{
+ struct auo_panel *auo = to_auo_panel(panel);
+ int ret;
+
+ if (auo->prepared)
+ return 0;
+
+ if (auo->enable_gpio) {
+ gpiod_set_value(auo->enable_gpio, 0);
+ usleep_range(1000, 1500);
+ }
+
+ ret = regulator_enable(auo->pp1800);
+ if (ret < 0)
+ return ret;
+ ret = regulator_enable(auo->avdd);
+ if (ret < 0)
+ goto poweroff1v8;
+ ret = regulator_enable(auo->avee);
+ if (ret < 0)
+ goto poweroffavdd;
+
+ if (auo->enable_gpio) {
+ gpiod_set_value(auo->enable_gpio, 1);
+ usleep_range(10000, 12000);
+ }
+
+ ret = auo_panel_init(auo);
+ if (ret < 0) {
+ dev_err(panel->dev, "failed to init panel: %d\n", ret);
+ goto poweroff;
+ }
+
+ auo->prepared = true;
+
+ return 0;
+
+poweroff:
+ regulator_disable(auo->avee);
+poweroffavdd:
+ regulator_disable(auo->avdd);
+poweroff1v8:
+ usleep_range(5000, 7000);
+ regulator_disable(auo->pp1800);
+ if (auo->enable_gpio)
+ gpiod_set_value(auo->enable_gpio, 0);
+ return ret;
+}
+
+static int auo_panel_enable(struct drm_panel *panel)
+{
+ struct auo_panel *auo = to_auo_panel(panel);
+ int ret;
+
+ if (auo->enabled)
+ return 0;
+
+ ret = backlight_enable(auo->backlight);
+ if (ret) {
+ DRM_DEV_ERROR(panel->drm->dev,
+ "Failed to enable backlight %d\n", ret);
+ return ret;
+ }
+
+ auo->enabled = true;
+
+ return 0;
+}
+
+static const struct drm_display_mode default_mode = {
+ .clock = 157000,
+ .hdisplay = 1200,
+ .hsync_start = 1200 + 80,
+ .hsync_end = 1200 + 80 + 24,
+ .htotal = 1200 + 80 + 24 + 36,
+ .vdisplay = 1920,
+ .vsync_start = 1920 + 16,
+ .vsync_end = 1920 + 16 + 4,
+ .vtotal = 1920 + 16 + 4 + 16,
+ .vrefresh = 60,
+};
+
+static int auo_panel_get_modes(struct drm_panel *panel)
+{
+ struct drm_display_mode *mode;
+
+ mode = drm_mode_duplicate(panel->drm, &default_mode);
+ if (!mode) {
+ dev_err(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 = 135;
+ panel->connector->display_info.height_mm = 216;
+ panel->connector->display_info.bpc = 8;
+
+ return 1;
+}
+
+static const struct drm_panel_funcs auo_panel_funcs = {
+ .disable = auo_panel_disable,
+ .unprepare = auo_panel_unprepare,
+ .prepare = auo_panel_prepare,
+ .enable = auo_panel_enable,
+ .get_modes = auo_panel_get_modes,
+};
+
+static int auo_panel_add(struct auo_panel *auo)
+{
+ struct device *dev = &auo->dsi->dev;
+
+ auo->avdd = devm_regulator_get(dev, "avdd");
+ if (IS_ERR(auo->avdd))
+ return PTR_ERR(auo->avdd);
+
+ auo->avee = devm_regulator_get(dev, "avee");
+ if (IS_ERR(auo->avee))
+ return PTR_ERR(auo->avee);
+
+ auo->pp1800 = devm_regulator_get(dev, "pp1800");
+ if (IS_ERR(auo->pp1800))
+ return PTR_ERR(auo->pp1800);
+
+ auo->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW);
+ if (IS_ERR(auo->enable_gpio)) {
+ dev_err(dev, "cannot get reset-gpios %ld\n",
+ PTR_ERR(auo->enable_gpio));
+ auo->enable_gpio = NULL;
+ } else {
+ gpiod_set_value(auo->enable_gpio, 0);
+ }
+
+ auo->backlight = devm_of_find_backlight(dev);
+ if (IS_ERR(auo->backlight))
+ return PTR_ERR(auo->backlight);
+
+ drm_panel_init(&auo->base);
+ auo->base.funcs = &auo_panel_funcs;
+ auo->base.dev = &auo->dsi->dev;
+
+ return drm_panel_add(&auo->base);
+}
+
+static void auo_panel_del(struct auo_panel *auo)
+{
+ if (auo->base.dev)
+ drm_panel_remove(&auo->base);
+}
+
+static int auo_panel_probe(struct mipi_dsi_device *dsi)
+{
+ struct auo_panel *auo;
+ int ret;
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
+ MIPI_DSI_MODE_LPM;
+
+ auo = devm_kzalloc(&dsi->dev, sizeof(*auo), GFP_KERNEL);
+ if (!auo)
+ return -ENOMEM;
+
+ mipi_dsi_set_drvdata(dsi, auo);
+
+ auo->dsi = dsi;
+
+ ret = auo_panel_add(auo);
+ if (ret < 0)
+ return ret;
+
+ return mipi_dsi_attach(dsi);
+}
+
+static int auo_panel_remove(struct mipi_dsi_device *dsi)
+{
+ struct auo_panel *auo = mipi_dsi_get_drvdata(dsi);
+ int ret;
+
+ ret = auo_panel_disable(&auo->base);
+ if (ret < 0)
+ dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
+
+ ret = mipi_dsi_detach(dsi);
+ if (ret < 0)
+ dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
+
+ auo_panel_del(auo);
+
+ return 0;
+}
+
+static void auo_panel_shutdown(struct mipi_dsi_device *dsi)
+{
+ struct auo_panel *auo = mipi_dsi_get_drvdata(dsi);
+
+ auo_panel_disable(&auo->base);
+}
+
+static const struct of_device_id auo_of_match[] = {
+ { .compatible = "auo,kd101n80-45na", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, auo_of_match);
+
+static struct mipi_dsi_driver auo_panel_driver = {
+ .driver = {
+ .name = "panel-auo-kd101n80-45na",
+ .of_match_table = auo_of_match,
+ },
+ .probe = auo_panel_probe,
+ .remove = auo_panel_remove,
+ .shutdown = auo_panel_shutdown,
+};
+module_mipi_dsi_driver(auo_panel_driver);
+
+MODULE_AUTHOR("Jitao Shi <jitao.shi@mediatek.com>");
+MODULE_DESCRIPTION("AUO kd101n80-45na wuxga (1200x1920) video mode panel driver");
+MODULE_LICENSE("GPL v2");
+
--
2.21.0
\
 
 \ /
  Last update: 2019-06-08 13:24    [W:0.086 / U:5.764 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site