drm/panel: Add Panasonic VVX10F034N00 MIPI DSI panel
This adds support for the Panasonic panel found in some Xperia Z2 tablets. Signed-off-by: Werner Johansson <werner.johansson@sonymobile.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Werner Johansson
Thierry Reding
parent
f74807a9f4
commit
086ceb6b42
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@ -31,6 +31,16 @@ config DRM_PANEL_LG_LG4573
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Say Y here if you want to enable support for LG4573 RGB panel.
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To compile this driver as a module, choose M here.
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config DRM_PANEL_PANASONIC_VVX10F034N00
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tristate "Panasonic VVX10F034N00 1920x1200 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 Panasonic VVX10F034N00
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WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some
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Xperia Z2 tablets
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config DRM_PANEL_SAMSUNG_S6E8AA0
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tristate "Samsung S6E8AA0 DSI video mode panel"
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depends on OF
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@ -1,5 +1,6 @@
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obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
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obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
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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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@ -0,0 +1,334 @@
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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/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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/*
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* When power is turned off to this panel a minimum off time of 500ms has to be
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* observed before powering back on as there's no external reset pin. Keep
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* track of earliest wakeup time and delay subsequent prepare call accordingly
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*/
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#define MIN_POFF_MS (500)
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struct wuxga_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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bool prepared;
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bool enabled;
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ktime_t earliest_wake;
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const struct drm_display_mode *mode;
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};
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static inline struct wuxga_nt_panel *to_wuxga_nt_panel(struct drm_panel *panel)
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{
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return container_of(panel, struct wuxga_nt_panel, base);
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}
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static int wuxga_nt_panel_on(struct wuxga_nt_panel *wuxga_nt)
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{
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struct mipi_dsi_device *dsi = wuxga_nt->dsi;
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int ret;
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ret = mipi_dsi_turn_on_peripheral(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 wuxga_nt_panel_disable(struct drm_panel *panel)
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{
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struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);
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if (!wuxga_nt->enabled)
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return 0;
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mipi_dsi_shutdown_peripheral(wuxga_nt->dsi);
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if (wuxga_nt->backlight) {
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wuxga_nt->backlight->props.power = FB_BLANK_POWERDOWN;
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wuxga_nt->backlight->props.state |= BL_CORE_FBBLANK;
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backlight_update_status(wuxga_nt->backlight);
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}
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wuxga_nt->enabled = false;
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return 0;
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}
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static int wuxga_nt_panel_unprepare(struct drm_panel *panel)
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{
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struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);
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if (!wuxga_nt->prepared)
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return 0;
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regulator_disable(wuxga_nt->supply);
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wuxga_nt->earliest_wake = ktime_add_ms(ktime_get_real(), MIN_POFF_MS);
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wuxga_nt->prepared = false;
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return 0;
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}
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static int wuxga_nt_panel_prepare(struct drm_panel *panel)
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{
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struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);
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int ret;
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s64 enablewait;
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if (wuxga_nt->prepared)
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return 0;
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/*
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* If the user re-enabled the panel before the required off-time then
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* we need to wait the remaining period before re-enabling regulator
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*/
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enablewait = ktime_ms_delta(wuxga_nt->earliest_wake, ktime_get_real());
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/* Sanity check, this should never happen */
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if (enablewait > MIN_POFF_MS)
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enablewait = MIN_POFF_MS;
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if (enablewait > 0)
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msleep(enablewait);
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ret = regulator_enable(wuxga_nt->supply);
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if (ret < 0)
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return ret;
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/*
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* A minimum delay of 250ms is required after power-up until commands
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* can be sent
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*/
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msleep(250);
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ret = wuxga_nt_panel_on(wuxga_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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wuxga_nt->prepared = true;
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return 0;
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poweroff:
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regulator_disable(wuxga_nt->supply);
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return ret;
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}
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static int wuxga_nt_panel_enable(struct drm_panel *panel)
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{
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struct wuxga_nt_panel *wuxga_nt = to_wuxga_nt_panel(panel);
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if (wuxga_nt->enabled)
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return 0;
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if (wuxga_nt->backlight) {
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wuxga_nt->backlight->props.power = FB_BLANK_UNBLANK;
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wuxga_nt->backlight->props.state &= ~BL_CORE_FBBLANK;
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backlight_update_status(wuxga_nt->backlight);
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}
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wuxga_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 = 164402,
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.hdisplay = 1920,
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.hsync_start = 1920 + 152,
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.hsync_end = 1920 + 152 + 52,
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.htotal = 1920 + 152 + 52 + 20,
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.vdisplay = 1200,
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.vsync_start = 1200 + 24,
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.vsync_end = 1200 + 24 + 6,
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.vtotal = 1200 + 24 + 6 + 48,
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.vrefresh = 60,
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};
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static int wuxga_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 = 217;
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panel->connector->display_info.height_mm = 136;
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return 1;
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}
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static const struct drm_panel_funcs wuxga_nt_panel_funcs = {
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.disable = wuxga_nt_panel_disable,
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.unprepare = wuxga_nt_panel_unprepare,
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.prepare = wuxga_nt_panel_prepare,
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.enable = wuxga_nt_panel_enable,
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.get_modes = wuxga_nt_panel_get_modes,
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};
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static const struct of_device_id wuxga_nt_of_match[] = {
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{ .compatible = "panasonic,vvx10f034n00", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, wuxga_nt_of_match);
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static int wuxga_nt_panel_add(struct wuxga_nt_panel *wuxga_nt)
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{
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struct device *dev = &wuxga_nt->dsi->dev;
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struct device_node *np;
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int ret;
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wuxga_nt->mode = &default_mode;
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wuxga_nt->supply = devm_regulator_get(dev, "power");
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if (IS_ERR(wuxga_nt->supply))
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return PTR_ERR(wuxga_nt->supply);
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np = of_parse_phandle(dev->of_node, "backlight", 0);
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if (np) {
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wuxga_nt->backlight = of_find_backlight_by_node(np);
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of_node_put(np);
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if (!wuxga_nt->backlight)
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return -EPROBE_DEFER;
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}
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drm_panel_init(&wuxga_nt->base);
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wuxga_nt->base.funcs = &wuxga_nt_panel_funcs;
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wuxga_nt->base.dev = &wuxga_nt->dsi->dev;
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ret = drm_panel_add(&wuxga_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 (wuxga_nt->backlight)
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put_device(&wuxga_nt->backlight->dev);
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return ret;
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}
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static void wuxga_nt_panel_del(struct wuxga_nt_panel *wuxga_nt)
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{
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if (wuxga_nt->base.dev)
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drm_panel_remove(&wuxga_nt->base);
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if (wuxga_nt->backlight)
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put_device(&wuxga_nt->backlight->dev);
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}
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static int wuxga_nt_panel_probe(struct mipi_dsi_device *dsi)
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{
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struct wuxga_nt_panel *wuxga_nt;
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int ret;
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dsi->lanes = 4;
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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_LPM;
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wuxga_nt = devm_kzalloc(&dsi->dev, sizeof(*wuxga_nt), GFP_KERNEL);
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if (!wuxga_nt)
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return -ENOMEM;
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mipi_dsi_set_drvdata(dsi, wuxga_nt);
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wuxga_nt->dsi = dsi;
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ret = wuxga_nt_panel_add(wuxga_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 wuxga_nt_panel_remove(struct mipi_dsi_device *dsi)
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{
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struct wuxga_nt_panel *wuxga_nt = mipi_dsi_get_drvdata(dsi);
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int ret;
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ret = wuxga_nt_panel_disable(&wuxga_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(&wuxga_nt->base);
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wuxga_nt_panel_del(wuxga_nt);
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return 0;
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}
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static void wuxga_nt_panel_shutdown(struct mipi_dsi_device *dsi)
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{
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struct wuxga_nt_panel *wuxga_nt = mipi_dsi_get_drvdata(dsi);
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wuxga_nt_panel_disable(&wuxga_nt->base);
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}
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static struct mipi_dsi_driver wuxga_nt_panel_driver = {
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.driver = {
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.name = "panel-panasonic-vvx10f034n00",
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.of_match_table = wuxga_nt_of_match,
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},
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.probe = wuxga_nt_panel_probe,
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.remove = wuxga_nt_panel_remove,
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.shutdown = wuxga_nt_panel_shutdown,
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};
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module_mipi_dsi_driver(wuxga_nt_panel_driver);
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MODULE_AUTHOR("Werner Johansson <werner.johansson@sonymobile.com>");
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MODULE_DESCRIPTION("Panasonic VVX10F034N00 Novatek NT1397-based WUXGA (1920x1200) video mode panel driver");
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MODULE_LICENSE("GPL v2");
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