// SPDX-License-Identifier: GPL-2.0-only
// Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
// Copyright (c) 2013, The Linux Foundation. All rights reserved.
// Copyright (c) 2024, Neil Armstrong <[email protected]>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regulator/consumer.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
#include <drm/drm_probe_helper.h>
struct boe_tv101wum_ll2 {
struct drm_panel panel;
struct mipi_dsi_device *dsi;
struct gpio_desc *reset_gpio;
struct regulator_bulk_data *supplies;
};
static const struct regulator_bulk_data boe_tv101wum_ll2_supplies[] = {
{ .supply = "vsp" },
{ .supply = "vsn" },
};
static inline struct boe_tv101wum_ll2 *to_boe_tv101wum_ll2(struct drm_panel *panel)
{
return container_of(panel, struct boe_tv101wum_ll2, panel);
}
static void boe_tv101wum_ll2_reset(struct boe_tv101wum_ll2 *ctx)
{
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
usleep_range(5000, 6000);
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
usleep_range(5000, 6000);
gpiod_set_value_cansleep(ctx->reset_gpio, 0);
msleep(120);
}
static int boe_tv101wum_ll2_on(struct boe_tv101wum_ll2 *ctx)
{
struct mipi_dsi_device *dsi = ctx->dsi;
struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
dsi->mode_flags |= MIPI_DSI_MODE_LPM;
mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
mipi_dsi_msleep(&dsi_ctx, 120);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x0e);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x80, 0xff, 0x81, 0x68, 0x6c, 0x22,
0x6d, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x23);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x90, 0x00, 0x00);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x94, 0x2c, 0x00);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x19);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa2, 0x38);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x0c);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x80, 0xfd);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x50, 0x00);
mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
mipi_dsi_msleep(&dsi_ctx, 20);
return dsi_ctx.accum_err;
}
static void boe_tv101wum_ll2_off(struct boe_tv101wum_ll2 *ctx)
{
struct mipi_dsi_device *dsi = ctx->dsi;
struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
mipi_dsi_msleep(&dsi_ctx, 70);
mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
mipi_dsi_msleep(&dsi_ctx, 20);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x04, 0x5a);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x05, 0x5a);
mipi_dsi_msleep(&dsi_ctx, 150);
}
static int boe_tv101wum_ll2_prepare(struct drm_panel *panel)
{
struct boe_tv101wum_ll2 *ctx = to_boe_tv101wum_ll2(panel);
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(boe_tv101wum_ll2_supplies),
ctx->supplies);
if (ret < 0)
return ret;
boe_tv101wum_ll2_reset(ctx);
ret = boe_tv101wum_ll2_on(ctx);
if (ret < 0) {
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
regulator_bulk_disable(ARRAY_SIZE(boe_tv101wum_ll2_supplies),
ctx->supplies);
return ret;
}
return 0;
}
static int boe_tv101wum_ll2_unprepare(struct drm_panel *panel)
{
struct boe_tv101wum_ll2 *ctx = to_boe_tv101wum_ll2(panel);
/* Ignore errors on failure, in any case set gpio and disable regulators */
boe_tv101wum_ll2_off(ctx);
gpiod_set_value_cansleep(ctx->reset_gpio, 1);
regulator_bulk_disable(ARRAY_SIZE(boe_tv101wum_ll2_supplies),
ctx->supplies);
return 0;
}
static const struct drm_display_mode boe_tv101wum_ll2_mode = {
.clock = (1200 + 27 + 8 + 12) * (1920 + 155 + 8 + 32) * 60 / 1000,
.hdisplay = 1200,
.hsync_start = 1200 + 27,
.hsync_end = 1200 + 27 + 8,
.htotal = 1200 + 27 + 8 + 12,
.vdisplay = 1920,
.vsync_start = 1920 + 155,
.vsync_end = 1920 + 155 + 8,
.vtotal = 1920 + 155 + 8 + 32,
.width_mm = 136,
.height_mm = 217,
.type = DRM_MODE_TYPE_DRIVER,
};
static int boe_tv101wum_ll2_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
/* We do not set display_info.bpc since unset value is bpc=8 by default */
return drm_connector_helper_get_modes_fixed(connector, &boe_tv101wum_ll2_mode);
}
static const struct drm_panel_funcs boe_tv101wum_ll2_panel_funcs = {
.prepare = boe_tv101wum_ll2_prepare,
.unprepare = boe_tv101wum_ll2_unprepare,
.get_modes = boe_tv101wum_ll2_get_modes,
};
static int boe_tv101wum_ll2_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct boe_tv101wum_ll2 *ctx;
int ret;
ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
ret = devm_regulator_bulk_get_const(&dsi->dev,
ARRAY_SIZE(boe_tv101wum_ll2_supplies),
boe_tv101wum_ll2_supplies,
&ctx->supplies);
if (ret < 0)
return ret;
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
if (IS_ERR(ctx->reset_gpio))
return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
"Failed to get reset-gpios\n");
ctx->dsi = dsi;
mipi_dsi_set_drvdata(dsi, ctx);
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_MODE_VIDEO_HSE;
drm_panel_init(&ctx->panel, dev, &boe_tv101wum_ll2_panel_funcs,
DRM_MODE_CONNECTOR_DSI);
ctx->panel.prepare_prev_first = true;
ret = drm_panel_of_backlight(&ctx->panel);
if (ret)
return dev_err_probe(dev, ret, "Failed to get backlight\n");
drm_panel_add(&ctx->panel);
ret = mipi_dsi_attach(dsi);
if (ret < 0) {
drm_panel_remove(&ctx->panel);
return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
}
return 0;
}
static void boe_tv101wum_ll2_remove(struct mipi_dsi_device *dsi)
{
struct boe_tv101wum_ll2 *ctx = mipi_dsi_get_drvdata(dsi);
int ret;
ret = mipi_dsi_detach(dsi);
if (ret < 0)
dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
drm_panel_remove(&ctx->panel);
}
static const struct of_device_id boe_tv101wum_ll2_of_match[] = {
{ .compatible = "boe,tv101wum-ll2" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, boe_tv101wum_ll2_of_match);
static struct mipi_dsi_driver boe_tv101wum_ll2_driver = {
.probe = boe_tv101wum_ll2_probe,
.remove = boe_tv101wum_ll2_remove,
.driver = {
.name = "panel-boe-tv101wum_ll2",
.of_match_table = boe_tv101wum_ll2_of_match,
},
};
module_mipi_dsi_driver(boe_tv101wum_ll2_driver);
MODULE_DESCRIPTION("DRM driver for BOE TV101WUM-LL2 Panel");
MODULE_LICENSE("GPL");
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