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author | Harigovindan P <harigovi@codeaurora.org> | 2020-04-29 11:15:14 +0530 |
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committer | Sam Ravnborg <sam@ravnborg.org> | 2020-05-06 20:54:47 +0200 |
commit | c7f66d32dd431cc30139324a7e0956f641dc6ff0 (patch) | |
tree | 124b4ceedec06936993ab66c830ecba196c15028 /drivers/gpu/drm/panel | |
parent | 10a14c3224a45b951f529925b757392aa2d2dcc9 (diff) | |
download | linux-stable-c7f66d32dd431cc30139324a7e0956f641dc6ff0.tar.gz linux-stable-c7f66d32dd431cc30139324a7e0956f641dc6ff0.tar.bz2 linux-stable-c7f66d32dd431cc30139324a7e0956f641dc6ff0.zip |
drm/panel: add support for rm69299 visionox panel
Add support for Visionox rm69299 panel.
Signed-off-by: Harigovindan P <harigovi@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
[fix checkpatch warnings, added sentinel ]
Link: https://patchwork.freedesktop.org/patch/msgid/20200421045508.21137-2-harigovi@codeaurora.org
Diffstat (limited to 'drivers/gpu/drm/panel')
-rw-r--r-- | drivers/gpu/drm/panel/Kconfig | 8 | ||||
-rw-r--r-- | drivers/gpu/drm/panel/Makefile | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/panel/panel-visionox-rm69299.c | 302 |
3 files changed, 311 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index d56258b9fcaf..4b6131f5893d 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -444,6 +444,14 @@ config DRM_PANEL_TRULY_NT35597_WQXGA Say Y here if you want to enable support for Truly NT35597 WQXGA Dual DSI Video Mode panel +config DRM_PANEL_VISIONOX_RM69299 + tristate "Visionox RM69299" + depends on OF + depends on DRM_MIPI_DSI + help + Say Y here if you want to enable support for Visionox + RM69299 DSI Video Mode panel. + config DRM_PANEL_XINPENG_XPP055C272 tristate "Xinpeng XPP055C272 panel driver" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 2335a1e32ae0..8eac3e6fa82c 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -47,4 +47,5 @@ obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o obj-$(CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA) += panel-truly-nt35597.o +obj-$(CONFIG_DRM_PANEL_VISIONOX_RM69299) += panel-visionox-rm69299.o obj-$(CONFIG_DRM_PANEL_XINPENG_XPP055C272) += panel-xinpeng-xpp055c272.o diff --git a/drivers/gpu/drm/panel/panel-visionox-rm69299.c b/drivers/gpu/drm/panel/panel-visionox-rm69299.c new file mode 100644 index 000000000000..25fe8b0bb040 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-visionox-rm69299.c @@ -0,0 +1,302 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2019, The Linux Foundation. All rights reserved. + */ + +#include <linux/delay.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/gpio/consumer.h> +#include <linux/regulator/consumer.h> + +#include <video/mipi_display.h> + +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> +#include <drm/drm_print.h> + +struct visionox_rm69299 { + struct drm_panel panel; + struct regulator_bulk_data supplies[2]; + struct gpio_desc *reset_gpio; + struct mipi_dsi_device *dsi; + bool prepared; + bool enabled; +}; + +static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel) +{ + return container_of(panel, struct visionox_rm69299, panel); +} + +static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx) +{ + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies), ctx->supplies); + if (ret < 0) + return ret; + + /* + * Reset sequence of visionox panel requires the panel to be + * out of reset for 10ms, followed by being held in reset + * for 10ms and then out again + */ + gpiod_set_value(ctx->reset_gpio, 1); + usleep_range(10000, 20000); + gpiod_set_value(ctx->reset_gpio, 0); + usleep_range(10000, 20000); + gpiod_set_value(ctx->reset_gpio, 1); + usleep_range(10000, 20000); + + return 0; +} + +static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx) +{ + gpiod_set_value(ctx->reset_gpio, 0); + + return regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); +} + +static int visionox_rm69299_unprepare(struct drm_panel *panel) +{ + struct visionox_rm69299 *ctx = panel_to_ctx(panel); + int ret; + + ctx->dsi->mode_flags = 0; + + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_OFF, NULL, 0); + if (ret < 0) + DRM_DEV_ERROR(ctx->panel.dev, + "set_display_off cmd failed ret = %d\n", ret); + + /* 120ms delay required here as per DCS spec */ + msleep(120); + + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_ENTER_SLEEP_MODE, NULL, 0); + if (ret < 0) { + DRM_DEV_ERROR(ctx->panel.dev, + "enter_sleep cmd failed ret = %d\n", ret); + } + + ret = visionox_rm69299_power_off(ctx); + + ctx->prepared = false; + return ret; +} + +static int visionox_rm69299_prepare(struct drm_panel *panel) +{ + struct visionox_rm69299 *ctx = panel_to_ctx(panel); + int ret; + + if (ctx->prepared) + return 0; + + ret = visionox_rm69299_power_on(ctx); + if (ret < 0) + return ret; + + ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xfe, 0x00 }, 2); + if (ret < 0) { + DRM_DEV_ERROR(ctx->panel.dev, + "cmd set tx 0 failed, ret = %d\n", ret); + goto power_off; + } + + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0xc2, 0x08 }, 2); + if (ret < 0) { + DRM_DEV_ERROR(ctx->panel.dev, + "cmd set tx 1 failed, ret = %d\n", ret); + goto power_off; + } + + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x35, 0x00 }, 2); + if (ret < 0) { + DRM_DEV_ERROR(ctx->panel.dev, + "cmd set tx 2 failed, ret = %d\n", ret); + goto power_off; + } + + ret = mipi_dsi_dcs_write_buffer(ctx->dsi, (u8[]) { 0x51, 0xff }, 2); + if (ret < 0) { + DRM_DEV_ERROR(ctx->panel.dev, + "cmd set tx 3 failed, ret = %d\n", ret); + goto power_off; + } + + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_EXIT_SLEEP_MODE, NULL, 0); + if (ret < 0) { + DRM_DEV_ERROR(ctx->panel.dev, + "exit_sleep_mode cmd failed ret = %d\n", ret); + goto power_off; + } + + /* Per DSI spec wait 120ms after sending exit sleep DCS command */ + msleep(120); + + ret = mipi_dsi_dcs_write(ctx->dsi, MIPI_DCS_SET_DISPLAY_ON, NULL, 0); + if (ret < 0) { + DRM_DEV_ERROR(ctx->panel.dev, + "set_display_on cmd failed ret = %d\n", ret); + goto power_off; + } + + /* Per DSI spec wait 120ms after sending set_display_on DCS command */ + msleep(120); + + ctx->prepared = true; + + return 0; + +power_off: + return ret; +} + +static const struct drm_display_mode visionox_rm69299_1080x2248_60hz = { + .name = "1080x2248", + .clock = 158695, + .hdisplay = 1080, + .hsync_start = 1080 + 26, + .hsync_end = 1080 + 26 + 2, + .htotal = 1080 + 26 + 2 + 36, + .vdisplay = 2248, + .vsync_start = 2248 + 56, + .vsync_end = 2248 + 56 + 4, + .vtotal = 2248 + 56 + 4 + 4, + .vrefresh = 60, + .flags = 0, +}; + +static int visionox_rm69299_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct visionox_rm69299 *ctx = panel_to_ctx(panel); + struct drm_display_mode *mode; + + mode = drm_mode_create(connector->dev); + if (!mode) { + DRM_DEV_ERROR(ctx->panel.dev, + "failed to create a new display mode\n"); + return 0; + } + + connector->display_info.width_mm = 74; + connector->display_info.height_mm = 131; + drm_mode_copy(mode, &visionox_rm69299_1080x2248_60hz); + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + + return 1; +} + +static const struct drm_panel_funcs visionox_rm69299_drm_funcs = { + .unprepare = visionox_rm69299_unprepare, + .prepare = visionox_rm69299_prepare, + .get_modes = visionox_rm69299_get_modes, +}; + +static int visionox_rm69299_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct visionox_rm69299 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + mipi_dsi_set_drvdata(dsi, ctx); + + ctx->panel.dev = dev; + ctx->dsi = dsi; + + ctx->supplies[0].supply = "vdda"; + ctx->supplies[1].supply = "vdd3p3"; + + ret = devm_regulator_bulk_get(ctx->panel.dev, ARRAY_SIZE(ctx->supplies), + ctx->supplies); + if (ret < 0) + return ret; + + ctx->reset_gpio = devm_gpiod_get(ctx->panel.dev, + "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset_gpio)) { + DRM_DEV_ERROR(dev, "cannot get reset gpio %ld\n", + PTR_ERR(ctx->reset_gpio)); + return PTR_ERR(ctx->reset_gpio); + } + + drm_panel_init(&ctx->panel, dev, &visionox_rm69299_drm_funcs, + DRM_MODE_CONNECTOR_DSI); + ctx->panel.dev = dev; + ctx->panel.funcs = &visionox_rm69299_drm_funcs; + drm_panel_add(&ctx->panel); + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM | + MIPI_DSI_CLOCK_NON_CONTINUOUS; + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + DRM_DEV_ERROR(dev, "dsi attach failed ret = %d\n", ret); + goto err_dsi_attach; + } + + ret = regulator_set_load(ctx->supplies[0].consumer, 32000); + if (ret) { + DRM_DEV_ERROR(dev, + "regulator set load failed for vdda supply ret = %d\n", + ret); + goto err_set_load; + } + + ret = regulator_set_load(ctx->supplies[1].consumer, 13200); + if (ret) { + DRM_DEV_ERROR(dev, + "regulator set load failed for vdd3p3 supply ret = %d\n", + ret); + goto err_set_load; + } + + return 0; + +err_set_load: + mipi_dsi_detach(dsi); +err_dsi_attach: + drm_panel_remove(&ctx->panel); + return ret; +} + +static int visionox_rm69299_remove(struct mipi_dsi_device *dsi) +{ + struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi); + + mipi_dsi_detach(ctx->dsi); + mipi_dsi_device_unregister(ctx->dsi); + + drm_panel_remove(&ctx->panel); + return 0; +} + +static const struct of_device_id visionox_rm69299_of_match[] = { + { .compatible = "visionox,rm69299-1080p-display", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match); + +static struct mipi_dsi_driver visionox_rm69299_driver = { + .driver = { + .name = "panel-visionox-rm69299", + .of_match_table = visionox_rm69299_of_match, + }, + .probe = visionox_rm69299_probe, + .remove = visionox_rm69299_remove, +}; +module_mipi_dsi_driver(visionox_rm69299_driver); + +MODULE_DESCRIPTION("Visionox RM69299 DSI Panel Driver"); |