drm/panel: Add Sharp LS043T1LE01 MIPI DSI panel
The Sharp LS043T1LE01 is a 4.3", 540x960 TFT-LCD panel connected using two DSI lanes. It is for example found on the Qualcomm Snapdragon 800 Dragonboard (APQ8074). Signed-off-by: Werner Johansson <werner.johansson@sonymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Reviewed-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Werner Johansson
Thierry Reding
parent
6a24d9c1b9
commit
ee01723831
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@ -61,4 +61,13 @@ config DRM_PANEL_SHARP_LQ101R1SX01
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To compile this driver as a module, choose M here: the module
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will be called panel-sharp-lq101r1sx01.
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config DRM_PANEL_SHARP_LS043T1LE01
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tristate "Sharp LS043T1LE01 qHD video mode panel"
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depends on OF
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depends on DRM_MIPI_DSI
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depends on BACKLIGHT_CLASS_DEVICE
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help
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Say Y here if you want to enable support for Sharp LS043T1LE01 qHD
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(540x960) DSI panel as found on the Qualcomm APQ8074 Dragonboard
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endmenu
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@ -4,3 +4,4 @@ obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
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obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o
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obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o
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obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o
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@ -0,0 +1,387 @@
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/*
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* Copyright (C) 2015 Red Hat
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* Copyright (C) 2015 Sony Mobile Communications Inc.
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* Author: Werner Johansson <werner.johansson@sonymobile.com>
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*
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* Based on AUO panel driver by Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/backlight.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regulator/consumer.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_panel.h>
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#include <video/mipi_display.h>
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struct sharp_nt_panel {
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struct drm_panel base;
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struct mipi_dsi_device *dsi;
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struct backlight_device *backlight;
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struct regulator *supply;
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struct gpio_desc *reset_gpio;
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bool prepared;
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bool enabled;
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const struct drm_display_mode *mode;
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};
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static inline struct sharp_nt_panel *to_sharp_nt_panel(struct drm_panel *panel)
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{
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return container_of(panel, struct sharp_nt_panel, base);
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}
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static int sharp_nt_panel_init(struct sharp_nt_panel *sharp_nt)
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{
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struct mipi_dsi_device *dsi = sharp_nt->dsi;
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int ret;
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
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if (ret < 0)
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return ret;
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msleep(120);
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/* Novatek two-lane operation */
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ret = mipi_dsi_dcs_write(dsi, 0xae, (u8[]){ 0x03 }, 1);
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if (ret < 0)
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return ret;
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/* Set both MCU and RGB I/F to 24bpp */
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ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT |
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(MIPI_DCS_PIXEL_FMT_24BIT << 4));
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if (ret < 0)
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return ret;
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return 0;
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}
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static int sharp_nt_panel_on(struct sharp_nt_panel *sharp_nt)
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{
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struct mipi_dsi_device *dsi = sharp_nt->dsi;
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int ret;
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dsi->mode_flags |= MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_set_display_on(dsi);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int sharp_nt_panel_off(struct sharp_nt_panel *sharp_nt)
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{
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struct mipi_dsi_device *dsi = sharp_nt->dsi;
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int ret;
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dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
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ret = mipi_dsi_dcs_set_display_off(dsi);
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if (ret < 0)
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return ret;
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ret = mipi_dsi_dcs_enter_sleep_mode(dsi);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int sharp_nt_panel_disable(struct drm_panel *panel)
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{
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struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
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if (!sharp_nt->enabled)
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return 0;
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if (sharp_nt->backlight) {
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sharp_nt->backlight->props.power = FB_BLANK_POWERDOWN;
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backlight_update_status(sharp_nt->backlight);
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}
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sharp_nt->enabled = false;
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return 0;
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}
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static int sharp_nt_panel_unprepare(struct drm_panel *panel)
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{
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struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
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int ret;
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if (!sharp_nt->prepared)
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return 0;
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ret = sharp_nt_panel_off(sharp_nt);
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if (ret < 0) {
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dev_err(panel->dev, "failed to set panel off: %d\n", ret);
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return ret;
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}
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regulator_disable(sharp_nt->supply);
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if (sharp_nt->reset_gpio)
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gpiod_set_value(sharp_nt->reset_gpio, 0);
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sharp_nt->prepared = false;
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return 0;
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}
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static int sharp_nt_panel_prepare(struct drm_panel *panel)
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{
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struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
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int ret;
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if (sharp_nt->prepared)
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return 0;
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ret = regulator_enable(sharp_nt->supply);
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if (ret < 0)
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return ret;
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msleep(20);
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if (sharp_nt->reset_gpio) {
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gpiod_set_value(sharp_nt->reset_gpio, 1);
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msleep(1);
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gpiod_set_value(sharp_nt->reset_gpio, 0);
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msleep(1);
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gpiod_set_value(sharp_nt->reset_gpio, 1);
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msleep(10);
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}
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ret = sharp_nt_panel_init(sharp_nt);
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if (ret < 0) {
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dev_err(panel->dev, "failed to init panel: %d\n", ret);
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goto poweroff;
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}
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ret = sharp_nt_panel_on(sharp_nt);
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if (ret < 0) {
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dev_err(panel->dev, "failed to set panel on: %d\n", ret);
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goto poweroff;
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}
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sharp_nt->prepared = true;
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return 0;
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poweroff:
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regulator_disable(sharp_nt->supply);
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if (sharp_nt->reset_gpio)
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gpiod_set_value(sharp_nt->reset_gpio, 0);
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return ret;
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}
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static int sharp_nt_panel_enable(struct drm_panel *panel)
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{
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struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
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if (sharp_nt->enabled)
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return 0;
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if (sharp_nt->backlight) {
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sharp_nt->backlight->props.power = FB_BLANK_UNBLANK;
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backlight_update_status(sharp_nt->backlight);
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}
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sharp_nt->enabled = true;
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return 0;
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}
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static const struct drm_display_mode default_mode = {
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.clock = 41118,
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.hdisplay = 540,
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.hsync_start = 540 + 48,
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.hsync_end = 540 + 48 + 80,
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.htotal = 540 + 48 + 80 + 32,
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.vdisplay = 960,
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.vsync_start = 960 + 3,
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.vsync_end = 960 + 3 + 15,
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.vtotal = 960 + 3 + 15 + 1,
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.vrefresh = 60,
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};
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static int sharp_nt_panel_get_modes(struct drm_panel *panel)
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{
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struct drm_display_mode *mode;
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mode = drm_mode_duplicate(panel->drm, &default_mode);
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if (!mode) {
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dev_err(panel->drm->dev, "failed to add mode %ux%ux@%u\n",
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default_mode.hdisplay, default_mode.vdisplay,
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default_mode.vrefresh);
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return -ENOMEM;
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}
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drm_mode_set_name(mode);
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drm_mode_probed_add(panel->connector, mode);
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panel->connector->display_info.width_mm = 54;
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panel->connector->display_info.height_mm = 95;
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return 1;
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}
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static const struct drm_panel_funcs sharp_nt_panel_funcs = {
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.disable = sharp_nt_panel_disable,
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.unprepare = sharp_nt_panel_unprepare,
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.prepare = sharp_nt_panel_prepare,
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.enable = sharp_nt_panel_enable,
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.get_modes = sharp_nt_panel_get_modes,
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};
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static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt)
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{
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struct device *dev = &sharp_nt->dsi->dev;
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struct device_node *np;
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int ret;
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sharp_nt->mode = &default_mode;
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sharp_nt->supply = devm_regulator_get(dev, "avdd");
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if (IS_ERR(sharp_nt->supply))
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return PTR_ERR(sharp_nt->supply);
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sharp_nt->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
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if (IS_ERR(sharp_nt->reset_gpio)) {
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dev_err(dev, "cannot get reset-gpios %ld\n",
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PTR_ERR(sharp_nt->reset_gpio));
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sharp_nt->reset_gpio = NULL;
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} else {
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gpiod_set_value(sharp_nt->reset_gpio, 0);
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}
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np = of_parse_phandle(dev->of_node, "backlight", 0);
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if (np) {
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sharp_nt->backlight = of_find_backlight_by_node(np);
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of_node_put(np);
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if (!sharp_nt->backlight)
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return -EPROBE_DEFER;
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}
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drm_panel_init(&sharp_nt->base);
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sharp_nt->base.funcs = &sharp_nt_panel_funcs;
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sharp_nt->base.dev = &sharp_nt->dsi->dev;
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ret = drm_panel_add(&sharp_nt->base);
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if (ret < 0)
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goto put_backlight;
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return 0;
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put_backlight:
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if (sharp_nt->backlight)
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put_device(&sharp_nt->backlight->dev);
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return ret;
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}
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static void sharp_nt_panel_del(struct sharp_nt_panel *sharp_nt)
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{
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if (sharp_nt->base.dev)
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drm_panel_remove(&sharp_nt->base);
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if (sharp_nt->backlight)
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put_device(&sharp_nt->backlight->dev);
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}
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static int sharp_nt_panel_probe(struct mipi_dsi_device *dsi)
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{
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struct sharp_nt_panel *sharp_nt;
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int ret;
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dsi->lanes = 2;
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dsi->format = MIPI_DSI_FMT_RGB888;
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dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
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MIPI_DSI_MODE_VIDEO_HSE |
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MIPI_DSI_CLOCK_NON_CONTINUOUS |
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MIPI_DSI_MODE_EOT_PACKET;
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sharp_nt = devm_kzalloc(&dsi->dev, sizeof(*sharp_nt), GFP_KERNEL);
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if (!sharp_nt)
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return -ENOMEM;
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mipi_dsi_set_drvdata(dsi, sharp_nt);
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sharp_nt->dsi = dsi;
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ret = sharp_nt_panel_add(sharp_nt);
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if (ret < 0)
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return ret;
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return mipi_dsi_attach(dsi);
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}
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static int sharp_nt_panel_remove(struct mipi_dsi_device *dsi)
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{
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struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);
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int ret;
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ret = sharp_nt_panel_disable(&sharp_nt->base);
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if (ret < 0)
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dev_err(&dsi->dev, "failed to disable panel: %d\n", ret);
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ret = mipi_dsi_detach(dsi);
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if (ret < 0)
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dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);
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drm_panel_detach(&sharp_nt->base);
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sharp_nt_panel_del(sharp_nt);
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return 0;
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}
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static void sharp_nt_panel_shutdown(struct mipi_dsi_device *dsi)
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{
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struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);
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sharp_nt_panel_disable(&sharp_nt->base);
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}
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static const struct of_device_id sharp_nt_of_match[] = {
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{ .compatible = "sharp,ls043t1le01-qhd", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, sharp_nt_of_match);
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static struct mipi_dsi_driver sharp_nt_panel_driver = {
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.driver = {
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.name = "panel-sharp-ls043t1le01-qhd",
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.of_match_table = sharp_nt_of_match,
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},
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.probe = sharp_nt_panel_probe,
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.remove = sharp_nt_panel_remove,
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.shutdown = sharp_nt_panel_shutdown,
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};
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module_mipi_dsi_driver(sharp_nt_panel_driver);
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MODULE_AUTHOR("Werner Johansson <werner.johansson@sonymobile.com>");
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MODULE_DESCRIPTION("Sharp LS043T1LE01 NT35565-based qHD (540x960) video mode panel driver");
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MODULE_LICENSE("GPL v2");
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