| Message ID | 78212e5adad59f09db9ff87b4430b97494f4d874.1499955058.git-series.maxime.ripard@free-electrons.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 13.07.2017 16:13, Maxime Ripard wrote: > The LHR050H41 panel is the panel shipped with the BananaPi M2-Magic. Add a > driver for it. > > Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> > --- > drivers/gpu/drm/panel/Kconfig | 9 +- > drivers/gpu/drm/panel/Makefile | 1 +- > drivers/gpu/drm/panel/panel-huarui-lhr050h41.c | 444 ++++++++++++++++++- > 3 files changed, 454 insertions(+) > create mode 100644 drivers/gpu/drm/panel/panel-huarui-lhr050h41.c > > diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig > index d84a031fae24..eaa6e102775a 100644 > --- a/drivers/gpu/drm/panel/Kconfig > +++ b/drivers/gpu/drm/panel/Kconfig > @@ -28,6 +28,15 @@ config DRM_PANEL_SIMPLE > that it can be automatically turned off when the panel goes into a > low power state. > > +config DRM_PANEL_HUARUI_LHR050H41 > + tristate "Huarui LHR050H41 panel" > + depends on OF > + depends on DRM_MIPI_DSI > + depends on BACKLIGHT_CLASS_DEVICE > + help > + Say Y if you want to enable support for the Huarui Lighting > + LHR05041 DSI panel. The panel has a 1280x720 resolution. > + > config DRM_PANEL_INNOLUX_P079ZCA > tristate "Innolux P079ZCA panel" > depends on OF > diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile > index 9f6610d08b00..58de7a853898 100644 > --- a/drivers/gpu/drm/panel/Makefile > +++ b/drivers/gpu/drm/panel/Makefile > @@ -1,5 +1,6 @@ > obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o > obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o > +obj-$(CONFIG_DRM_PANEL_HUARUI_LHR050H41) += panel-huarui-lhr050h41.o > obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o > obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o > obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o > diff --git a/drivers/gpu/drm/panel/panel-huarui-lhr050h41.c b/drivers/gpu/drm/panel/panel-huarui-lhr050h41.c > new file mode 100644 > index 000000000000..eb675eb9ee7d > --- /dev/null > +++ b/drivers/gpu/drm/panel/panel-huarui-lhr050h41.c > @@ -0,0 +1,444 @@ No copyright/license/description at the beginning of the file. > +#include <linux/backlight.h> > +#include <linux/delay.h> > +#include <linux/device.h> > +#include <linux/err.h> > +#include <linux/errno.h> > +#include <linux/fb.h> > +#include <linux/kernel.h> > +#include <linux/module.h> > + > +#include <linux/gpio/consumer.h> It can be put in alphabetical order. > + > +#include <drm/drm_mipi_dsi.h> > +#include <drm/drm_modes.h> > +#include <drm/drm_panel.h> > + > +#include <video/mipi_display.h> > + > +struct lhr050h41 { > + struct drm_panel panel; > + struct mipi_dsi_device *dsi; > + > + struct backlight_device *backlight; > + struct gpio_desc *power; > + struct gpio_desc *reset; > +}; > + > +static inline struct lhr050h41 *panel_to_lhr050h41(struct drm_panel *panel) > +{ > + return container_of(panel, struct lhr050h41, panel); > +} > + > +static int lhr050h41_switch_page(struct lhr050h41 *ctx, u8 page) > +{ > + u8 buf[4] = { 0xff, 0x98, 0x81, page }; > + > + return mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf)); > +} > + > +static int lhr050h41_send_cmd_data(struct lhr050h41 *ctx, u8 cmd, u8 data) > +{ > + u8 buf[2] = { cmd, data }; > + > + return mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf)); > +} > + > +static int lhr050h41_send_init_sequence(struct lhr050h41 *ctx) > +{ > + lhr050h41_switch_page(ctx, 3); No error checking, here and below in most places. > + > + lhr050h41_send_cmd_data(ctx, 0x01, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x02, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x03, 0x73); > + lhr050h41_send_cmd_data(ctx, 0x04, 0x03); > + lhr050h41_send_cmd_data(ctx, 0x05, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x06, 0x06); > + lhr050h41_send_cmd_data(ctx, 0x07, 0x06); > + lhr050h41_send_cmd_data(ctx, 0x08, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x09, 0x18); > + lhr050h41_send_cmd_data(ctx, 0x0a, 0x04); > + lhr050h41_send_cmd_data(ctx, 0x0b, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x0c, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x0d, 0x03); > + lhr050h41_send_cmd_data(ctx, 0x0e, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x0f, 0x25); > + lhr050h41_send_cmd_data(ctx, 0x10, 0x25); > + lhr050h41_send_cmd_data(ctx, 0x11, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x12, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x13, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x14, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x15, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x16, 0x0C); > + lhr050h41_send_cmd_data(ctx, 0x17, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x18, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x19, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x1a, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x1b, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x1c, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x1d, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x1e, 0xC0); > + lhr050h41_send_cmd_data(ctx, 0x1f, 0x80); > + lhr050h41_send_cmd_data(ctx, 0x20, 0x04); > + lhr050h41_send_cmd_data(ctx, 0x21, 0x01); > + lhr050h41_send_cmd_data(ctx, 0x22, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x23, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x24, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x25, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x26, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x27, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x28, 0x33); > + lhr050h41_send_cmd_data(ctx, 0x29, 0x03); > + lhr050h41_send_cmd_data(ctx, 0x2a, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x2b, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x2c, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x2d, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x2e, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x2f, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x30, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x31, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x32, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x33, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x34, 0x04); > + lhr050h41_send_cmd_data(ctx, 0x35, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x36, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x37, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x38, 0x3C); > + lhr050h41_send_cmd_data(ctx, 0x39, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x3a, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x3b, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x3c, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x3d, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x3e, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x3f, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x40, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x41, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x42, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x43, 0x00); > + lhr050h41_send_cmd_data(ctx, 0x44, 0x00); > + > + lhr050h41_send_cmd_data(ctx, 0x50, 0x01); > + lhr050h41_send_cmd_data(ctx, 0x51, 0x23); > + lhr050h41_send_cmd_data(ctx, 0x52, 0x45); > + lhr050h41_send_cmd_data(ctx, 0x53, 0x67); > + lhr050h41_send_cmd_data(ctx, 0x54, 0x89); > + lhr050h41_send_cmd_data(ctx, 0x55, 0xab); > + lhr050h41_send_cmd_data(ctx, 0x56, 0x01); > + lhr050h41_send_cmd_data(ctx, 0x57, 0x23); > + lhr050h41_send_cmd_data(ctx, 0x58, 0x45); > + lhr050h41_send_cmd_data(ctx, 0x59, 0x67); > + lhr050h41_send_cmd_data(ctx, 0x5a, 0x89); > + lhr050h41_send_cmd_data(ctx, 0x5b, 0xab); > + lhr050h41_send_cmd_data(ctx, 0x5c, 0xcd); > + lhr050h41_send_cmd_data(ctx, 0x5d, 0xef); > + > + lhr050h41_send_cmd_data(ctx, 0x5e, 0x11); > + lhr050h41_send_cmd_data(ctx, 0x5f, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x60, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x61, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x62, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x63, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x64, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x65, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x66, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x67, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x68, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x69, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x6a, 0x0C); > + lhr050h41_send_cmd_data(ctx, 0x6b, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x6c, 0x0F); > + lhr050h41_send_cmd_data(ctx, 0x6d, 0x0E); > + lhr050h41_send_cmd_data(ctx, 0x6e, 0x0D); > + lhr050h41_send_cmd_data(ctx, 0x6f, 0x06); > + lhr050h41_send_cmd_data(ctx, 0x70, 0x07); > + lhr050h41_send_cmd_data(ctx, 0x71, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x72, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x73, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x74, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x75, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x76, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x77, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x78, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x79, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x7a, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x7b, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x7c, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x7d, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x7e, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x7f, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x80, 0x0C); > + lhr050h41_send_cmd_data(ctx, 0x81, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x82, 0x0F); > + lhr050h41_send_cmd_data(ctx, 0x83, 0x0E); > + lhr050h41_send_cmd_data(ctx, 0x84, 0x0D); > + lhr050h41_send_cmd_data(ctx, 0x85, 0x06); > + lhr050h41_send_cmd_data(ctx, 0x86, 0x07); > + lhr050h41_send_cmd_data(ctx, 0x87, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x88, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x89, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x8A, 0x02); > + > + lhr050h41_switch_page(ctx, 4); > + lhr050h41_send_cmd_data(ctx, 0x6C, 0x15); > + lhr050h41_send_cmd_data(ctx, 0x6E, 0x22); > + lhr050h41_send_cmd_data(ctx, 0x6F, 0x33); > + lhr050h41_send_cmd_data(ctx, 0x3A, 0xA4); > + lhr050h41_send_cmd_data(ctx, 0x8D, 0x0D); > + lhr050h41_send_cmd_data(ctx, 0x87, 0xBA); > + lhr050h41_send_cmd_data(ctx, 0x26, 0x76); > + lhr050h41_send_cmd_data(ctx, 0xB2, 0xD1); > + > + lhr050h41_switch_page(ctx, 1); > + lhr050h41_send_cmd_data(ctx, 0x22, 0x0A); > + lhr050h41_send_cmd_data(ctx, 0x53, 0xDC); > + lhr050h41_send_cmd_data(ctx, 0x55, 0xA7); > + lhr050h41_send_cmd_data(ctx, 0x50, 0x78); > + lhr050h41_send_cmd_data(ctx, 0x51, 0x78); > + lhr050h41_send_cmd_data(ctx, 0x31, 0x02); > + lhr050h41_send_cmd_data(ctx, 0x60, 0x14); > + lhr050h41_send_cmd_data(ctx, 0xA0, 0x2A); > + lhr050h41_send_cmd_data(ctx, 0xA1, 0x39); > + lhr050h41_send_cmd_data(ctx, 0xA2, 0x46); > + lhr050h41_send_cmd_data(ctx, 0xA3, 0x0e); > + lhr050h41_send_cmd_data(ctx, 0xA4, 0x12); > + lhr050h41_send_cmd_data(ctx, 0xA5, 0x25); > + lhr050h41_send_cmd_data(ctx, 0xA6, 0x19); > + lhr050h41_send_cmd_data(ctx, 0xA7, 0x1d); > + lhr050h41_send_cmd_data(ctx, 0xA8, 0xa6); > + lhr050h41_send_cmd_data(ctx, 0xA9, 0x1C); > + lhr050h41_send_cmd_data(ctx, 0xAA, 0x29); > + lhr050h41_send_cmd_data(ctx, 0xAB, 0x85); > + lhr050h41_send_cmd_data(ctx, 0xAC, 0x1C); > + lhr050h41_send_cmd_data(ctx, 0xAD, 0x1B); > + lhr050h41_send_cmd_data(ctx, 0xAE, 0x51); > + lhr050h41_send_cmd_data(ctx, 0xAF, 0x22); > + lhr050h41_send_cmd_data(ctx, 0xB0, 0x2d); > + lhr050h41_send_cmd_data(ctx, 0xB1, 0x4f); > + lhr050h41_send_cmd_data(ctx, 0xB2, 0x59); > + lhr050h41_send_cmd_data(ctx, 0xB3, 0x3F); > + lhr050h41_send_cmd_data(ctx, 0xC0, 0x2A); > + lhr050h41_send_cmd_data(ctx, 0xC1, 0x3a); > + lhr050h41_send_cmd_data(ctx, 0xC2, 0x45); > + lhr050h41_send_cmd_data(ctx, 0xC3, 0x0e); > + lhr050h41_send_cmd_data(ctx, 0xC4, 0x11); > + lhr050h41_send_cmd_data(ctx, 0xC5, 0x24); > + lhr050h41_send_cmd_data(ctx, 0xC6, 0x1a); > + lhr050h41_send_cmd_data(ctx, 0xC7, 0x1c); > + lhr050h41_send_cmd_data(ctx, 0xC8, 0xaa); > + lhr050h41_send_cmd_data(ctx, 0xC9, 0x1C); > + lhr050h41_send_cmd_data(ctx, 0xCA, 0x29); > + lhr050h41_send_cmd_data(ctx, 0xCB, 0x96); > + lhr050h41_send_cmd_data(ctx, 0xCC, 0x1C); > + lhr050h41_send_cmd_data(ctx, 0xCD, 0x1B); > + lhr050h41_send_cmd_data(ctx, 0xCE, 0x51); > + lhr050h41_send_cmd_data(ctx, 0xCF, 0x22); > + lhr050h41_send_cmd_data(ctx, 0xD0, 0x2b); > + lhr050h41_send_cmd_data(ctx, 0xD1, 0x4b); > + lhr050h41_send_cmd_data(ctx, 0xD2, 0x59); > + lhr050h41_send_cmd_data(ctx, 0xD3, 0x3F); I think you can put all above codes into some array and call it in loop, with error checking. > + > + lhr050h41_switch_page(ctx, 0); > + lhr050h41_send_cmd_data(ctx, 0x35, 0x00); mipi_dsi_dcs_set_tear_on > + lhr050h41_send_cmd_data(ctx, 0x11, 0x00); mipi_dsi_dcs_exit_sleep_mode > + > + mdelay(120); I think it should be moved to enable callback, more about it below. > + > + lhr050h41_send_cmd_data(ctx, 0x29, 0x00); mipi_dsi_dcs_set_display_on > + > + mdelay(20); > + > + return 0; > +} > + > +static int lhr050h41_prepare(struct drm_panel *panel) > +{ > + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); > + > + /* Power the panel */ > + gpiod_set_value(ctx->power, 1); > + mdelay(5); > + > + /* And reset it */ > + gpiod_set_value(ctx->reset, 1); > + mdelay(20); > + > + gpiod_set_value(ctx->reset, 0); > + mdelay(20); > + > + lhr050h41_send_init_sequence(ctx); > + > + return 0; > +} > + > +static void lhr050h41_enable_bl(struct lhr050h41 *ctx, bool enable) > +{ > + if (!ctx->backlight) > + return; > + > + if (enable) { > + ctx->backlight->props.state &= ~BL_CORE_FBBLANK; > + ctx->backlight->props.power = FB_BLANK_UNBLANK; > + } else { > + ctx->backlight->props.power = FB_BLANK_POWERDOWN; > + ctx->backlight->props.state |= BL_CORE_FBBLANK; > + } > + > + backlight_update_status(ctx->backlight); > +} > + > +static int lhr050h41_enable(struct drm_panel *panel) > +{ > + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); > + > + lhr050h41_enable_bl(ctx, true); > + > + return 0; > +} Usually purpose of mdelay(120) is to wait for finishing initialization and transmission of first frames to the panel. So I guess mdelay(120) and mipi_dsi_dcs_set_display_on should be moved to _enable callback, otherwise you risk having garbage on the screen at start. > + > +static int lhr050h41_disable(struct drm_panel *panel) > +{ > + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); > + > + lhr050h41_enable_bl(ctx, false); > + > + return mipi_dsi_dcs_set_display_off(ctx->dsi); > +} > + > +static int lhr050h41_unprepare(struct drm_panel *panel) > +{ > + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); > + > + mipi_dsi_dcs_enter_sleep_mode(ctx->dsi); > + gpiod_set_value(ctx->power, 0); > + gpiod_set_value(ctx->reset, 1); > + > + return 0; > +} > + > +static const struct drm_display_mode default_mode = { > + .clock = 62000, > + .vrefresh = 60, > + > + .hdisplay = 720, > + .hsync_start = 720 + 10, > + .hsync_end = 720 + 10 + 20, > + .htotal = 720 + 10 + 20 + 30, > + > + .vdisplay = 1280, > + .vsync_start = 1280 + 10, > + .vsync_end = 1280 + 10 + 10, > + .vtotal = 1280 + 10 + 10 + 20, > +}; > + > +static int lhr050h41_get_modes(struct drm_panel *panel) > +{ > + struct drm_connector *connector = panel->connector; > + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); > + struct drm_display_mode *mode; > + > + mode = drm_mode_duplicate(panel->drm, &default_mode); > + if (!mode) { > + dev_err(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n", > + default_mode.hdisplay, default_mode.vdisplay, > + default_mode.vrefresh); > + return -ENOMEM; > + } > + > + drm_mode_set_name(mode); > + > + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; > + drm_mode_probed_add(connector, mode); > + > + panel->connector->display_info.width_mm = 62; > + panel->connector->display_info.height_mm = 110; > + > + return 1; > +} > + > +static const struct drm_panel_funcs lhr050h41_funcs = { > + .prepare = lhr050h41_prepare, > + .unprepare = lhr050h41_unprepare, > + .enable = lhr050h41_enable, > + .disable = lhr050h41_disable, > + .get_modes = lhr050h41_get_modes, > +}; > + > +static int lhr050h41_dsi_probe(struct mipi_dsi_device *dsi) > +{ > + struct device_node *np; > + struct lhr050h41 *ctx; > + int ret; > + > + ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + mipi_dsi_set_drvdata(dsi, ctx); > + ctx->dsi = dsi; > + > + drm_panel_init(&ctx->panel); > + ctx->panel.dev = &dsi->dev; > + ctx->panel.funcs = &lhr050h41_funcs; > + > + ctx->power = devm_gpiod_get(&dsi->dev, "power", GPIOD_OUT_LOW); > + if (IS_ERR(ctx->power)) { > + dev_err(&dsi->dev, "Couldn't get our power GPIO\n"); > + return PTR_ERR(ctx->power); > + } > + > + ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW); > + if (IS_ERR(ctx->reset)) { > + dev_err(&dsi->dev, "Couldn't get our reset GPIO\n"); > + return PTR_ERR(ctx->reset); > + } > + > + np = of_parse_phandle(dsi->dev.of_node, "backlight", 0); > + if (np) { > + ctx->backlight = of_find_backlight_by_node(np); > + of_node_put(np); > + > + if (!ctx->backlight) > + return -EPROBE_DEFER; > + } > + > + ret = drm_panel_add(&ctx->panel); > + if (ret < 0) > + return ret; > + > + dsi->mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE; I guess MIPI_DSI_MODE_VIDEO should be also here. Regards Andrzej > + dsi->format = MIPI_DSI_FMT_RGB888; > + dsi->lanes = 4; > + > + return mipi_dsi_attach(dsi); > +} > + > +static int lhr050h41_dsi_remove(struct mipi_dsi_device *dsi) > +{ > + struct lhr050h41 *ctx = mipi_dsi_get_drvdata(dsi); > + > + mipi_dsi_detach(dsi); > + drm_panel_remove(&ctx->panel); > + > + if (ctx->backlight) > + put_device(&ctx->backlight->dev); > + > + return 0; > +} > + > +static const struct of_device_id lhr050h41_of_match[] = { > + { .compatible = "huarui,lhr050h41" }, > + { } > +}; > +MODULE_DEVICE_TABLE(of, lhr050h41_of_match); > + > +static struct mipi_dsi_driver lhr050h41_dsi_driver = { > + .probe = lhr050h41_dsi_probe, > + .remove = lhr050h41_dsi_remove, > + .driver = { > + .name = "lhr050h41-dsi", > + .of_match_table = lhr050h41_of_match, > + }, > +}; > +module_mipi_dsi_driver(lhr050h41_dsi_driver); > + > +MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>"); > +MODULE_DESCRIPTION("Huarui LHR050H41 LCD Driver"); > +MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index d84a031fae24..eaa6e102775a 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -28,6 +28,15 @@ config DRM_PANEL_SIMPLE that it can be automatically turned off when the panel goes into a low power state. +config DRM_PANEL_HUARUI_LHR050H41 + tristate "Huarui LHR050H41 panel" + depends on OF + depends on DRM_MIPI_DSI + depends on BACKLIGHT_CLASS_DEVICE + help + Say Y if you want to enable support for the Huarui Lighting + LHR05041 DSI panel. The panel has a 1280x720 resolution. + config DRM_PANEL_INNOLUX_P079ZCA tristate "Innolux P079ZCA panel" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index 9f6610d08b00..58de7a853898 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -1,5 +1,6 @@ obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o +obj-$(CONFIG_DRM_PANEL_HUARUI_LHR050H41) += panel-huarui-lhr050h41.o obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o diff --git a/drivers/gpu/drm/panel/panel-huarui-lhr050h41.c b/drivers/gpu/drm/panel/panel-huarui-lhr050h41.c new file mode 100644 index 000000000000..eb675eb9ee7d --- /dev/null +++ b/drivers/gpu/drm/panel/panel-huarui-lhr050h41.c @@ -0,0 +1,444 @@ +#include <linux/backlight.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/errno.h> +#include <linux/fb.h> +#include <linux/kernel.h> +#include <linux/module.h> + +#include <linux/gpio/consumer.h> + +#include <drm/drm_mipi_dsi.h> +#include <drm/drm_modes.h> +#include <drm/drm_panel.h> + +#include <video/mipi_display.h> + +struct lhr050h41 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + + struct backlight_device *backlight; + struct gpio_desc *power; + struct gpio_desc *reset; +}; + +static inline struct lhr050h41 *panel_to_lhr050h41(struct drm_panel *panel) +{ + return container_of(panel, struct lhr050h41, panel); +} + +static int lhr050h41_switch_page(struct lhr050h41 *ctx, u8 page) +{ + u8 buf[4] = { 0xff, 0x98, 0x81, page }; + + return mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf)); +} + +static int lhr050h41_send_cmd_data(struct lhr050h41 *ctx, u8 cmd, u8 data) +{ + u8 buf[2] = { cmd, data }; + + return mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf)); +} + +static int lhr050h41_send_init_sequence(struct lhr050h41 *ctx) +{ + lhr050h41_switch_page(ctx, 3); + + lhr050h41_send_cmd_data(ctx, 0x01, 0x00); + lhr050h41_send_cmd_data(ctx, 0x02, 0x00); + lhr050h41_send_cmd_data(ctx, 0x03, 0x73); + lhr050h41_send_cmd_data(ctx, 0x04, 0x03); + lhr050h41_send_cmd_data(ctx, 0x05, 0x00); + lhr050h41_send_cmd_data(ctx, 0x06, 0x06); + lhr050h41_send_cmd_data(ctx, 0x07, 0x06); + lhr050h41_send_cmd_data(ctx, 0x08, 0x00); + lhr050h41_send_cmd_data(ctx, 0x09, 0x18); + lhr050h41_send_cmd_data(ctx, 0x0a, 0x04); + lhr050h41_send_cmd_data(ctx, 0x0b, 0x00); + lhr050h41_send_cmd_data(ctx, 0x0c, 0x02); + lhr050h41_send_cmd_data(ctx, 0x0d, 0x03); + lhr050h41_send_cmd_data(ctx, 0x0e, 0x00); + lhr050h41_send_cmd_data(ctx, 0x0f, 0x25); + lhr050h41_send_cmd_data(ctx, 0x10, 0x25); + lhr050h41_send_cmd_data(ctx, 0x11, 0x00); + lhr050h41_send_cmd_data(ctx, 0x12, 0x00); + lhr050h41_send_cmd_data(ctx, 0x13, 0x00); + lhr050h41_send_cmd_data(ctx, 0x14, 0x00); + lhr050h41_send_cmd_data(ctx, 0x15, 0x00); + lhr050h41_send_cmd_data(ctx, 0x16, 0x0C); + lhr050h41_send_cmd_data(ctx, 0x17, 0x00); + lhr050h41_send_cmd_data(ctx, 0x18, 0x00); + lhr050h41_send_cmd_data(ctx, 0x19, 0x00); + lhr050h41_send_cmd_data(ctx, 0x1a, 0x00); + lhr050h41_send_cmd_data(ctx, 0x1b, 0x00); + lhr050h41_send_cmd_data(ctx, 0x1c, 0x00); + lhr050h41_send_cmd_data(ctx, 0x1d, 0x00); + lhr050h41_send_cmd_data(ctx, 0x1e, 0xC0); + lhr050h41_send_cmd_data(ctx, 0x1f, 0x80); + lhr050h41_send_cmd_data(ctx, 0x20, 0x04); + lhr050h41_send_cmd_data(ctx, 0x21, 0x01); + lhr050h41_send_cmd_data(ctx, 0x22, 0x00); + lhr050h41_send_cmd_data(ctx, 0x23, 0x00); + lhr050h41_send_cmd_data(ctx, 0x24, 0x00); + lhr050h41_send_cmd_data(ctx, 0x25, 0x00); + lhr050h41_send_cmd_data(ctx, 0x26, 0x00); + lhr050h41_send_cmd_data(ctx, 0x27, 0x00); + lhr050h41_send_cmd_data(ctx, 0x28, 0x33); + lhr050h41_send_cmd_data(ctx, 0x29, 0x03); + lhr050h41_send_cmd_data(ctx, 0x2a, 0x00); + lhr050h41_send_cmd_data(ctx, 0x2b, 0x00); + lhr050h41_send_cmd_data(ctx, 0x2c, 0x00); + lhr050h41_send_cmd_data(ctx, 0x2d, 0x00); + lhr050h41_send_cmd_data(ctx, 0x2e, 0x00); + lhr050h41_send_cmd_data(ctx, 0x2f, 0x00); + lhr050h41_send_cmd_data(ctx, 0x30, 0x00); + lhr050h41_send_cmd_data(ctx, 0x31, 0x00); + lhr050h41_send_cmd_data(ctx, 0x32, 0x00); + lhr050h41_send_cmd_data(ctx, 0x33, 0x00); + lhr050h41_send_cmd_data(ctx, 0x34, 0x04); + lhr050h41_send_cmd_data(ctx, 0x35, 0x00); + lhr050h41_send_cmd_data(ctx, 0x36, 0x00); + lhr050h41_send_cmd_data(ctx, 0x37, 0x00); + lhr050h41_send_cmd_data(ctx, 0x38, 0x3C); + lhr050h41_send_cmd_data(ctx, 0x39, 0x00); + lhr050h41_send_cmd_data(ctx, 0x3a, 0x00); + lhr050h41_send_cmd_data(ctx, 0x3b, 0x00); + lhr050h41_send_cmd_data(ctx, 0x3c, 0x00); + lhr050h41_send_cmd_data(ctx, 0x3d, 0x00); + lhr050h41_send_cmd_data(ctx, 0x3e, 0x00); + lhr050h41_send_cmd_data(ctx, 0x3f, 0x00); + lhr050h41_send_cmd_data(ctx, 0x40, 0x00); + lhr050h41_send_cmd_data(ctx, 0x41, 0x00); + lhr050h41_send_cmd_data(ctx, 0x42, 0x00); + lhr050h41_send_cmd_data(ctx, 0x43, 0x00); + lhr050h41_send_cmd_data(ctx, 0x44, 0x00); + + lhr050h41_send_cmd_data(ctx, 0x50, 0x01); + lhr050h41_send_cmd_data(ctx, 0x51, 0x23); + lhr050h41_send_cmd_data(ctx, 0x52, 0x45); + lhr050h41_send_cmd_data(ctx, 0x53, 0x67); + lhr050h41_send_cmd_data(ctx, 0x54, 0x89); + lhr050h41_send_cmd_data(ctx, 0x55, 0xab); + lhr050h41_send_cmd_data(ctx, 0x56, 0x01); + lhr050h41_send_cmd_data(ctx, 0x57, 0x23); + lhr050h41_send_cmd_data(ctx, 0x58, 0x45); + lhr050h41_send_cmd_data(ctx, 0x59, 0x67); + lhr050h41_send_cmd_data(ctx, 0x5a, 0x89); + lhr050h41_send_cmd_data(ctx, 0x5b, 0xab); + lhr050h41_send_cmd_data(ctx, 0x5c, 0xcd); + lhr050h41_send_cmd_data(ctx, 0x5d, 0xef); + + lhr050h41_send_cmd_data(ctx, 0x5e, 0x11); + lhr050h41_send_cmd_data(ctx, 0x5f, 0x02); + lhr050h41_send_cmd_data(ctx, 0x60, 0x02); + lhr050h41_send_cmd_data(ctx, 0x61, 0x02); + lhr050h41_send_cmd_data(ctx, 0x62, 0x02); + lhr050h41_send_cmd_data(ctx, 0x63, 0x02); + lhr050h41_send_cmd_data(ctx, 0x64, 0x02); + lhr050h41_send_cmd_data(ctx, 0x65, 0x02); + lhr050h41_send_cmd_data(ctx, 0x66, 0x02); + lhr050h41_send_cmd_data(ctx, 0x67, 0x02); + lhr050h41_send_cmd_data(ctx, 0x68, 0x02); + lhr050h41_send_cmd_data(ctx, 0x69, 0x02); + lhr050h41_send_cmd_data(ctx, 0x6a, 0x0C); + lhr050h41_send_cmd_data(ctx, 0x6b, 0x02); + lhr050h41_send_cmd_data(ctx, 0x6c, 0x0F); + lhr050h41_send_cmd_data(ctx, 0x6d, 0x0E); + lhr050h41_send_cmd_data(ctx, 0x6e, 0x0D); + lhr050h41_send_cmd_data(ctx, 0x6f, 0x06); + lhr050h41_send_cmd_data(ctx, 0x70, 0x07); + lhr050h41_send_cmd_data(ctx, 0x71, 0x02); + lhr050h41_send_cmd_data(ctx, 0x72, 0x02); + lhr050h41_send_cmd_data(ctx, 0x73, 0x02); + lhr050h41_send_cmd_data(ctx, 0x74, 0x02); + lhr050h41_send_cmd_data(ctx, 0x75, 0x02); + lhr050h41_send_cmd_data(ctx, 0x76, 0x02); + lhr050h41_send_cmd_data(ctx, 0x77, 0x02); + lhr050h41_send_cmd_data(ctx, 0x78, 0x02); + lhr050h41_send_cmd_data(ctx, 0x79, 0x02); + lhr050h41_send_cmd_data(ctx, 0x7a, 0x02); + lhr050h41_send_cmd_data(ctx, 0x7b, 0x02); + lhr050h41_send_cmd_data(ctx, 0x7c, 0x02); + lhr050h41_send_cmd_data(ctx, 0x7d, 0x02); + lhr050h41_send_cmd_data(ctx, 0x7e, 0x02); + lhr050h41_send_cmd_data(ctx, 0x7f, 0x02); + lhr050h41_send_cmd_data(ctx, 0x80, 0x0C); + lhr050h41_send_cmd_data(ctx, 0x81, 0x02); + lhr050h41_send_cmd_data(ctx, 0x82, 0x0F); + lhr050h41_send_cmd_data(ctx, 0x83, 0x0E); + lhr050h41_send_cmd_data(ctx, 0x84, 0x0D); + lhr050h41_send_cmd_data(ctx, 0x85, 0x06); + lhr050h41_send_cmd_data(ctx, 0x86, 0x07); + lhr050h41_send_cmd_data(ctx, 0x87, 0x02); + lhr050h41_send_cmd_data(ctx, 0x88, 0x02); + lhr050h41_send_cmd_data(ctx, 0x89, 0x02); + lhr050h41_send_cmd_data(ctx, 0x8A, 0x02); + + lhr050h41_switch_page(ctx, 4); + lhr050h41_send_cmd_data(ctx, 0x6C, 0x15); + lhr050h41_send_cmd_data(ctx, 0x6E, 0x22); + lhr050h41_send_cmd_data(ctx, 0x6F, 0x33); + lhr050h41_send_cmd_data(ctx, 0x3A, 0xA4); + lhr050h41_send_cmd_data(ctx, 0x8D, 0x0D); + lhr050h41_send_cmd_data(ctx, 0x87, 0xBA); + lhr050h41_send_cmd_data(ctx, 0x26, 0x76); + lhr050h41_send_cmd_data(ctx, 0xB2, 0xD1); + + lhr050h41_switch_page(ctx, 1); + lhr050h41_send_cmd_data(ctx, 0x22, 0x0A); + lhr050h41_send_cmd_data(ctx, 0x53, 0xDC); + lhr050h41_send_cmd_data(ctx, 0x55, 0xA7); + lhr050h41_send_cmd_data(ctx, 0x50, 0x78); + lhr050h41_send_cmd_data(ctx, 0x51, 0x78); + lhr050h41_send_cmd_data(ctx, 0x31, 0x02); + lhr050h41_send_cmd_data(ctx, 0x60, 0x14); + lhr050h41_send_cmd_data(ctx, 0xA0, 0x2A); + lhr050h41_send_cmd_data(ctx, 0xA1, 0x39); + lhr050h41_send_cmd_data(ctx, 0xA2, 0x46); + lhr050h41_send_cmd_data(ctx, 0xA3, 0x0e); + lhr050h41_send_cmd_data(ctx, 0xA4, 0x12); + lhr050h41_send_cmd_data(ctx, 0xA5, 0x25); + lhr050h41_send_cmd_data(ctx, 0xA6, 0x19); + lhr050h41_send_cmd_data(ctx, 0xA7, 0x1d); + lhr050h41_send_cmd_data(ctx, 0xA8, 0xa6); + lhr050h41_send_cmd_data(ctx, 0xA9, 0x1C); + lhr050h41_send_cmd_data(ctx, 0xAA, 0x29); + lhr050h41_send_cmd_data(ctx, 0xAB, 0x85); + lhr050h41_send_cmd_data(ctx, 0xAC, 0x1C); + lhr050h41_send_cmd_data(ctx, 0xAD, 0x1B); + lhr050h41_send_cmd_data(ctx, 0xAE, 0x51); + lhr050h41_send_cmd_data(ctx, 0xAF, 0x22); + lhr050h41_send_cmd_data(ctx, 0xB0, 0x2d); + lhr050h41_send_cmd_data(ctx, 0xB1, 0x4f); + lhr050h41_send_cmd_data(ctx, 0xB2, 0x59); + lhr050h41_send_cmd_data(ctx, 0xB3, 0x3F); + lhr050h41_send_cmd_data(ctx, 0xC0, 0x2A); + lhr050h41_send_cmd_data(ctx, 0xC1, 0x3a); + lhr050h41_send_cmd_data(ctx, 0xC2, 0x45); + lhr050h41_send_cmd_data(ctx, 0xC3, 0x0e); + lhr050h41_send_cmd_data(ctx, 0xC4, 0x11); + lhr050h41_send_cmd_data(ctx, 0xC5, 0x24); + lhr050h41_send_cmd_data(ctx, 0xC6, 0x1a); + lhr050h41_send_cmd_data(ctx, 0xC7, 0x1c); + lhr050h41_send_cmd_data(ctx, 0xC8, 0xaa); + lhr050h41_send_cmd_data(ctx, 0xC9, 0x1C); + lhr050h41_send_cmd_data(ctx, 0xCA, 0x29); + lhr050h41_send_cmd_data(ctx, 0xCB, 0x96); + lhr050h41_send_cmd_data(ctx, 0xCC, 0x1C); + lhr050h41_send_cmd_data(ctx, 0xCD, 0x1B); + lhr050h41_send_cmd_data(ctx, 0xCE, 0x51); + lhr050h41_send_cmd_data(ctx, 0xCF, 0x22); + lhr050h41_send_cmd_data(ctx, 0xD0, 0x2b); + lhr050h41_send_cmd_data(ctx, 0xD1, 0x4b); + lhr050h41_send_cmd_data(ctx, 0xD2, 0x59); + lhr050h41_send_cmd_data(ctx, 0xD3, 0x3F); + + lhr050h41_switch_page(ctx, 0); + lhr050h41_send_cmd_data(ctx, 0x35, 0x00); + lhr050h41_send_cmd_data(ctx, 0x11, 0x00); + + mdelay(120); + + lhr050h41_send_cmd_data(ctx, 0x29, 0x00); + + mdelay(20); + + return 0; +} + +static int lhr050h41_prepare(struct drm_panel *panel) +{ + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); + + /* Power the panel */ + gpiod_set_value(ctx->power, 1); + mdelay(5); + + /* And reset it */ + gpiod_set_value(ctx->reset, 1); + mdelay(20); + + gpiod_set_value(ctx->reset, 0); + mdelay(20); + + lhr050h41_send_init_sequence(ctx); + + return 0; +} + +static void lhr050h41_enable_bl(struct lhr050h41 *ctx, bool enable) +{ + if (!ctx->backlight) + return; + + if (enable) { + ctx->backlight->props.state &= ~BL_CORE_FBBLANK; + ctx->backlight->props.power = FB_BLANK_UNBLANK; + } else { + ctx->backlight->props.power = FB_BLANK_POWERDOWN; + ctx->backlight->props.state |= BL_CORE_FBBLANK; + } + + backlight_update_status(ctx->backlight); +} + +static int lhr050h41_enable(struct drm_panel *panel) +{ + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); + + lhr050h41_enable_bl(ctx, true); + + return 0; +} + +static int lhr050h41_disable(struct drm_panel *panel) +{ + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); + + lhr050h41_enable_bl(ctx, false); + + return mipi_dsi_dcs_set_display_off(ctx->dsi); +} + +static int lhr050h41_unprepare(struct drm_panel *panel) +{ + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); + + mipi_dsi_dcs_enter_sleep_mode(ctx->dsi); + gpiod_set_value(ctx->power, 0); + gpiod_set_value(ctx->reset, 1); + + return 0; +} + +static const struct drm_display_mode default_mode = { + .clock = 62000, + .vrefresh = 60, + + .hdisplay = 720, + .hsync_start = 720 + 10, + .hsync_end = 720 + 10 + 20, + .htotal = 720 + 10 + 20 + 30, + + .vdisplay = 1280, + .vsync_start = 1280 + 10, + .vsync_end = 1280 + 10 + 10, + .vtotal = 1280 + 10 + 10 + 20, +}; + +static int lhr050h41_get_modes(struct drm_panel *panel) +{ + struct drm_connector *connector = panel->connector; + struct lhr050h41 *ctx = panel_to_lhr050h41(panel); + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(panel->drm, &default_mode); + if (!mode) { + dev_err(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n", + default_mode.hdisplay, default_mode.vdisplay, + default_mode.vrefresh); + return -ENOMEM; + } + + drm_mode_set_name(mode); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_probed_add(connector, mode); + + panel->connector->display_info.width_mm = 62; + panel->connector->display_info.height_mm = 110; + + return 1; +} + +static const struct drm_panel_funcs lhr050h41_funcs = { + .prepare = lhr050h41_prepare, + .unprepare = lhr050h41_unprepare, + .enable = lhr050h41_enable, + .disable = lhr050h41_disable, + .get_modes = lhr050h41_get_modes, +}; + +static int lhr050h41_dsi_probe(struct mipi_dsi_device *dsi) +{ + struct device_node *np; + struct lhr050h41 *ctx; + int ret; + + ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + mipi_dsi_set_drvdata(dsi, ctx); + ctx->dsi = dsi; + + drm_panel_init(&ctx->panel); + ctx->panel.dev = &dsi->dev; + ctx->panel.funcs = &lhr050h41_funcs; + + ctx->power = devm_gpiod_get(&dsi->dev, "power", GPIOD_OUT_LOW); + if (IS_ERR(ctx->power)) { + dev_err(&dsi->dev, "Couldn't get our power GPIO\n"); + return PTR_ERR(ctx->power); + } + + ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW); + if (IS_ERR(ctx->reset)) { + dev_err(&dsi->dev, "Couldn't get our reset GPIO\n"); + return PTR_ERR(ctx->reset); + } + + np = of_parse_phandle(dsi->dev.of_node, "backlight", 0); + if (np) { + ctx->backlight = of_find_backlight_by_node(np); + of_node_put(np); + + if (!ctx->backlight) + return -EPROBE_DEFER; + } + + ret = drm_panel_add(&ctx->panel); + if (ret < 0) + return ret; + + dsi->mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->lanes = 4; + + return mipi_dsi_attach(dsi); +} + +static int lhr050h41_dsi_remove(struct mipi_dsi_device *dsi) +{ + struct lhr050h41 *ctx = mipi_dsi_get_drvdata(dsi); + + mipi_dsi_detach(dsi); + drm_panel_remove(&ctx->panel); + + if (ctx->backlight) + put_device(&ctx->backlight->dev); + + return 0; +} + +static const struct of_device_id lhr050h41_of_match[] = { + { .compatible = "huarui,lhr050h41" }, + { } +}; +MODULE_DEVICE_TABLE(of, lhr050h41_of_match); + +static struct mipi_dsi_driver lhr050h41_dsi_driver = { + .probe = lhr050h41_dsi_probe, + .remove = lhr050h41_dsi_remove, + .driver = { + .name = "lhr050h41-dsi", + .of_match_table = lhr050h41_of_match, + }, +}; +module_mipi_dsi_driver(lhr050h41_dsi_driver); + +MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>"); +MODULE_DESCRIPTION("Huarui LHR050H41 LCD Driver"); +MODULE_LICENSE("GPL v2");
The LHR050H41 panel is the panel shipped with the BananaPi M2-Magic. Add a driver for it. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> --- drivers/gpu/drm/panel/Kconfig | 9 +- drivers/gpu/drm/panel/Makefile | 1 +- drivers/gpu/drm/panel/panel-huarui-lhr050h41.c | 444 ++++++++++++++++++- 3 files changed, 454 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-huarui-lhr050h41.c