linux/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2015 Red Hat
* Copyright (C) 2015 Sony Mobile Communications Inc.
* Author: Werner Johansson <werner.johansson@sonymobile.com>
*
* Based on AUO panel driver by Rob Clark <robdclark@gmail.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_panel.h>
struct sharp_nt_panel {
struct drm_panel base;
struct mipi_dsi_device *dsi;
struct regulator *supply;
struct gpio_desc *reset_gpio;
bool prepared;
bool enabled;
const struct drm_display_mode *mode;
};
static inline struct sharp_nt_panel *to_sharp_nt_panel(struct drm_panel *panel)
{
return container_of(panel, struct sharp_nt_panel, base);
}
static int sharp_nt_panel_init(struct sharp_nt_panel *sharp_nt)
{
struct mipi_dsi_device *dsi = sharp_nt->dsi;
int ret;
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
if (ret < 0)
return ret;
msleep(120);
/* Novatek two-lane operation */
ret = mipi_dsi_dcs_write(dsi, 0xae, (u8[]){ 0x03 }, 1);
if (ret < 0)
return ret;
/* Set both MCU and RGB I/F to 24bpp */
ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT |
(MIPI_DCS_PIXEL_FMT_24BIT << 4));
if (ret < 0)
return ret;
return 0;
}
static int sharp_nt_panel_on(struct sharp_nt_panel *sharp_nt)
{
struct mipi_dsi_device *dsi = sharp_nt->dsi;
int ret;
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
ret = mipi_dsi_dcs_set_display_on(dsi);
if (ret < 0)
return ret;
return 0;
}
static int sharp_nt_panel_off(struct sharp_nt_panel *sharp_nt)
{
struct mipi_dsi_device *dsi = sharp_nt->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 sharp_nt_panel_disable(struct drm_panel *panel)
{
struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
if (!sharp_nt->enabled)
return 0;
sharp_nt->enabled = false;
return 0;
}
static int sharp_nt_panel_unprepare(struct drm_panel *panel)
{
struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
int ret;
if (!sharp_nt->prepared)
return 0;
ret = sharp_nt_panel_off(sharp_nt);
if (ret < 0) {
dev_err(panel->dev, "failed to set panel off: %d\n", ret);
return ret;
}
regulator_disable(sharp_nt->supply);
if (sharp_nt->reset_gpio)
gpiod_set_value(sharp_nt->reset_gpio, 0);
sharp_nt->prepared = false;
return 0;
}
static int sharp_nt_panel_prepare(struct drm_panel *panel)
{
struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
int ret;
if (sharp_nt->prepared)
return 0;
ret = regulator_enable(sharp_nt->supply);
if (ret < 0)
return ret;
msleep(20);
if (sharp_nt->reset_gpio) {
gpiod_set_value(sharp_nt->reset_gpio, 1);
msleep(1);
gpiod_set_value(sharp_nt->reset_gpio, 0);
msleep(1);
gpiod_set_value(sharp_nt->reset_gpio, 1);
msleep(10);
}
ret = sharp_nt_panel_init(sharp_nt);
if (ret < 0) {
dev_err(panel->dev, "failed to init panel: %d\n", ret);
goto poweroff;
}
ret = sharp_nt_panel_on(sharp_nt);
if (ret < 0) {
dev_err(panel->dev, "failed to set panel on: %d\n", ret);
goto poweroff;
}
sharp_nt->prepared = true;
return 0;
poweroff:
regulator_disable(sharp_nt->supply);
if (sharp_nt->reset_gpio)
gpiod_set_value(sharp_nt->reset_gpio, 0);
return ret;
}
static int sharp_nt_panel_enable(struct drm_panel *panel)
{
struct sharp_nt_panel *sharp_nt = to_sharp_nt_panel(panel);
if (sharp_nt->enabled)
return 0;
sharp_nt->enabled = true;
return 0;
}
static const struct drm_display_mode default_mode = {
.clock = 41118,
.hdisplay = 540,
.hsync_start = 540 + 48,
.hsync_end = 540 + 48 + 80,
.htotal = 540 + 48 + 80 + 32,
.vdisplay = 960,
.vsync_start = 960 + 3,
.vsync_end = 960 + 3 + 15,
.vtotal = 960 + 3 + 15 + 1,
};
static int sharp_nt_panel_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
struct drm_display_mode *mode;
drm/panel: drop drm_device from drm_panel The panel drivers used drm_panel.drm for two purposes: 1) Argument to drm_mode_duplicate() 2) drm->dev was used in error messages The first usage is replaced with drm_connector.dev - drm_connector is already connected to a drm_device and we have a valid connector The second usage is replaced with drm_panel.dev - this makes drivers more consistent in their dev argument used for dev_err() and friends With these replacements there are no more uses of drm_panel.drm, so it is removed from struct drm_panel. With this change drm_panel_attach() and drm_panel_detach() no longer have any use as they are empty functions. v2: - editorial correction in changelog (Laurent) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Stefan Mavrodiev <stefan@olimex.com> Cc: Robert Chiras <robert.chiras@nxp.com> Cc: "Guido Günther" <agx@sigxcpu.org> Cc: Purism Kernel Team <kernel@puri.sm> Link: https://patchwork.freedesktop.org/patch/msgid/20191207140353.23967-8-sam@ravnborg.org
2019-12-07 22:03:35 +08:00
mode = drm_mode_duplicate(connector->dev, &default_mode);
if (!mode) {
drm/panel: drop drm_device from drm_panel The panel drivers used drm_panel.drm for two purposes: 1) Argument to drm_mode_duplicate() 2) drm->dev was used in error messages The first usage is replaced with drm_connector.dev - drm_connector is already connected to a drm_device and we have a valid connector The second usage is replaced with drm_panel.dev - this makes drivers more consistent in their dev argument used for dev_err() and friends With these replacements there are no more uses of drm_panel.drm, so it is removed from struct drm_panel. With this change drm_panel_attach() and drm_panel_detach() no longer have any use as they are empty functions. v2: - editorial correction in changelog (Laurent) Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Stefan Mavrodiev <stefan@olimex.com> Cc: Robert Chiras <robert.chiras@nxp.com> Cc: "Guido Günther" <agx@sigxcpu.org> Cc: Purism Kernel Team <kernel@puri.sm> Link: https://patchwork.freedesktop.org/patch/msgid/20191207140353.23967-8-sam@ravnborg.org
2019-12-07 22:03:35 +08:00
dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
default_mode.hdisplay, default_mode.vdisplay,
drm: Nuke mode->vrefresh Get rid of mode->vrefresh and just calculate it on demand. Saves a bit of space and avoids the cached value getting out of sync with reality. Mostly done with cocci, with the following manual fixups: - Remove the now empty loop in drm_helper_probe_single_connector_modes() - Fix __MODE() macro in ch7006_mode.c - Fix DRM_MODE_ARG() macro in drm_modes.h - Remove leftover comment from samsung_s6d16d0_mode - Drop the TODO @@ @@ struct drm_display_mode { ... - int vrefresh; ... }; @@ identifier N; expression E; @@ struct drm_display_mode N = { - .vrefresh = E }; @@ identifier N; expression E; @@ struct drm_display_mode N[...] = { ..., { - .vrefresh = E } ,... }; @@ expression E; @@ { DRM_MODE(...), - .vrefresh = E, } @@ identifier M, R; @@ int drm_mode_vrefresh(const struct drm_display_mode *M) { ... - if (M->vrefresh > 0) - R = M->vrefresh; - else if (...) { ... } ... } @@ struct drm_display_mode *p; expression E; @@ ( - p->vrefresh = E; | - p->vrefresh + drm_mode_vrefresh(p) ) @@ struct drm_display_mode s; expression E; @@ ( - s.vrefresh = E; | - s.vrefresh + drm_mode_vrefresh(&s) ) @@ expression E; @@ - drm_mode_vrefresh(E) ? drm_mode_vrefresh(E) : drm_mode_vrefresh(E) + drm_mode_vrefresh(E) @find_substruct@ identifier X; identifier S; @@ struct X { ... struct drm_display_mode S; ... }; @@ identifier find_substruct.S; expression E; identifier I; @@ { .S = { - .vrefresh = E } } @@ identifier find_substruct.S; identifier find_substruct.X; expression E; identifier I; @@ struct X I[...] = { ..., .S = { - .vrefresh = E } ,... }; v2: Drop TODO v3: Rebase v4: Rebase Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Jernej Skrabec <jernej.skrabec@siol.net> Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: CK Hu <ck.hu@mediatek.com> Cc: Philipp Zabel <p.zabel@pengutronix.de> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Jerry Han <hanxu5@huaqin.corp-partner.google.com> Cc: Icenowy Zheng <icenowy@aosc.io> Cc: Jagan Teki <jagan@amarulasolutions.com> Cc: Stefan Mavrodiev <stefan@olimex.com> Cc: Robert Chiras <robert.chiras@nxp.com> Cc: "Guido Günther" <agx@sigxcpu.org> Cc: Purism Kernel Team <kernel@puri.sm> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: VMware Graphics <linux-graphics-maintainer@vmware.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Cc: linux-amlogic@lists.infradead.org Cc: nouveau@lists.freedesktop.org Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200428171940.19552-4-ville.syrjala@linux.intel.com
2020-04-29 01:19:27 +08:00
drm_mode_vrefresh(&default_mode));
return -ENOMEM;
}
drm_mode_set_name(mode);
drm_mode_probed_add(connector, mode);
connector->display_info.width_mm = 54;
connector->display_info.height_mm = 95;
return 1;
}
static const struct drm_panel_funcs sharp_nt_panel_funcs = {
.disable = sharp_nt_panel_disable,
.unprepare = sharp_nt_panel_unprepare,
.prepare = sharp_nt_panel_prepare,
.enable = sharp_nt_panel_enable,
.get_modes = sharp_nt_panel_get_modes,
};
static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt)
{
struct device *dev = &sharp_nt->dsi->dev;
int ret;
sharp_nt->mode = &default_mode;
sharp_nt->supply = devm_regulator_get(dev, "avdd");
if (IS_ERR(sharp_nt->supply))
return PTR_ERR(sharp_nt->supply);
sharp_nt->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(sharp_nt->reset_gpio)) {
dev_err(dev, "cannot get reset-gpios %ld\n",
PTR_ERR(sharp_nt->reset_gpio));
sharp_nt->reset_gpio = NULL;
} else {
gpiod_set_value(sharp_nt->reset_gpio, 0);
}
drm_panel_init(&sharp_nt->base, &sharp_nt->dsi->dev,
&sharp_nt_panel_funcs, DRM_MODE_CONNECTOR_DSI);
ret = drm_panel_of_backlight(&sharp_nt->base);
if (ret)
return ret;
drm_panel_add(&sharp_nt->base);
return 0;
}
static void sharp_nt_panel_del(struct sharp_nt_panel *sharp_nt)
{
if (sharp_nt->base.dev)
drm_panel_remove(&sharp_nt->base);
}
static int sharp_nt_panel_probe(struct mipi_dsi_device *dsi)
{
struct sharp_nt_panel *sharp_nt;
int ret;
dsi->lanes = 2;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
MIPI_DSI_MODE_VIDEO_HSE |
MIPI_DSI_CLOCK_NON_CONTINUOUS |
MIPI_DSI_MODE_NO_EOT_PACKET;
sharp_nt = devm_kzalloc(&dsi->dev, sizeof(*sharp_nt), GFP_KERNEL);
if (!sharp_nt)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, sharp_nt);
sharp_nt->dsi = dsi;
ret = sharp_nt_panel_add(sharp_nt);
if (ret < 0)
return ret;
return mipi_dsi_attach(dsi);
}
static int sharp_nt_panel_remove(struct mipi_dsi_device *dsi)
{
struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);
int ret;
ret = drm_panel_disable(&sharp_nt->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);
sharp_nt_panel_del(sharp_nt);
return 0;
}
static void sharp_nt_panel_shutdown(struct mipi_dsi_device *dsi)
{
struct sharp_nt_panel *sharp_nt = mipi_dsi_get_drvdata(dsi);
drm_panel_disable(&sharp_nt->base);
}
static const struct of_device_id sharp_nt_of_match[] = {
{ .compatible = "sharp,ls043t1le01-qhd", },
{ }
};
MODULE_DEVICE_TABLE(of, sharp_nt_of_match);
static struct mipi_dsi_driver sharp_nt_panel_driver = {
.driver = {
.name = "panel-sharp-ls043t1le01-qhd",
.of_match_table = sharp_nt_of_match,
},
.probe = sharp_nt_panel_probe,
.remove = sharp_nt_panel_remove,
.shutdown = sharp_nt_panel_shutdown,
};
module_mipi_dsi_driver(sharp_nt_panel_driver);
MODULE_AUTHOR("Werner Johansson <werner.johansson@sonymobile.com>");
MODULE_DESCRIPTION("Sharp LS043T1LE01 NT35565-based qHD (540x960) video mode panel driver");
MODULE_LICENSE("GPL v2");