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Signed-off-by: Tejas Vipin Reviewed-by: Douglas Anderson --- drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c | 150 ++++++------------- 1 file changed, 49 insertions(+), 101 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c b/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c index 483dc88d16d8..9ec567b4a8e2 100644 --- a/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c +++ b/drivers/gpu/drm/panel/panel-jdi-fhd-r63452.c @@ -41,142 +41,90 @@ static void jdi_fhd_r63452_reset(struct jdi_fhd_r63452 *ctx) static int jdi_fhd_r63452_on(struct jdi_fhd_r63452 *ctx) { struct mipi_dsi_device *dsi = ctx->dsi; - struct device *dev = &dsi->dev; - int ret; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; dsi->mode_flags |= MIPI_DSI_MODE_LPM; - mipi_dsi_generic_write_seq(dsi, 0xb0, 0x00); - mipi_dsi_generic_write_seq(dsi, 0xd6, 0x01); - mipi_dsi_generic_write_seq(dsi, 0xec, - 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b, - 0x13, 0x15, 0x68, 0x0b, 0xb5); - mipi_dsi_generic_write_seq(dsi, 0xb0, 0x03); - - ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); - if (ret < 0) { - dev_err(dev, "Failed to set tear on: %d\n", ret); - return ret; - } - - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x00); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x00); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd6, 0x01); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xec, + 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b, + 0x13, 0x15, 0x68, 0x0b, 0xb5); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x03); - ret = mipi_dsi_dcs_set_pixel_format(dsi, 0x77); - if (ret < 0) { - dev_err(dev, "Failed to set pixel format: %d\n", ret); - return ret; - } - - ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 0x0437); - if (ret < 0) { - dev_err(dev, "Failed to set column address: %d\n", ret); - return ret; - } + mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK); - ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 0x077f); - if (ret < 0) { - dev_err(dev, "Failed to set page address: %d\n", ret); - return ret; - } + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x00); - ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0x0000); - if (ret < 0) { - dev_err(dev, "Failed to set tear scanline: %d\n", ret); - return ret; - } + mipi_dsi_dcs_set_pixel_format_multi(&dsi_ctx, 0x77); + mipi_dsi_dcs_set_column_address_multi(&dsi_ctx, 0x0000, 0x0437); + mipi_dsi_dcs_set_page_address_multi(&dsi_ctx, 0x0000, 0x077f); + mipi_dsi_dcs_set_tear_scanline_multi(&dsi_ctx, 0x0000); + mipi_dsi_dcs_set_display_brightness_multi(&dsi_ctx, 0x00ff); - ret = mipi_dsi_dcs_set_display_brightness(dsi, 0x00ff); - if (ret < 0) { - dev_err(dev, "Failed to set display brightness: %d\n", ret); - return ret; - } + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x24); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_POWER_SAVE, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_SET_CABC_MIN_BRIGHTNESS, 0x00); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x84, 0x00); - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x24); - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00); - mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_CABC_MIN_BRIGHTNESS, 0x00); - mipi_dsi_dcs_write_seq(dsi, 0x84, 0x00); + mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 20); + mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 80); - ret = mipi_dsi_dcs_set_display_on(dsi); - if (ret < 0) { - dev_err(dev, "Failed to set display on: %d\n", ret); - return ret; - } - msleep(20); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x04); + mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x84, 0x00); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xc8, 0x11); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x03); - ret = mipi_dsi_dcs_exit_sleep_mode(dsi); - if (ret < 0) { - dev_err(dev, "Failed to exit sleep mode: %d\n", ret); - return ret; - } - msleep(80); - - mipi_dsi_generic_write_seq(dsi, 0xb0, 0x04); - mipi_dsi_dcs_write_seq(dsi, 0x84, 0x00); - mipi_dsi_generic_write_seq(dsi, 0xc8, 0x11); - mipi_dsi_generic_write_seq(dsi, 0xb0, 0x03); - - return 0; + return dsi_ctx.accum_err; } -static int jdi_fhd_r63452_off(struct jdi_fhd_r63452 *ctx) +static void jdi_fhd_r63452_off(struct jdi_fhd_r63452 *ctx) { struct mipi_dsi_device *dsi = ctx->dsi; - struct device *dev = &dsi->dev; - int ret; + struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; - mipi_dsi_generic_write_seq(dsi, 0xb0, 0x00); - mipi_dsi_generic_write_seq(dsi, 0xd6, 0x01); - mipi_dsi_generic_write_seq(dsi, 0xec, - 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b, - 0x13, 0x15, 0x68, 0x0b, 0x95); - mipi_dsi_generic_write_seq(dsi, 0xb0, 0x03); - - ret = mipi_dsi_dcs_set_display_off(dsi); - if (ret < 0) { - dev_err(dev, "Failed to set display off: %d\n", ret); - return ret; - } - usleep_range(2000, 3000); - - ret = mipi_dsi_dcs_enter_sleep_mode(dsi); - if (ret < 0) { - dev_err(dev, "Failed to enter sleep mode: %d\n", ret); - return ret; - } - msleep(120); - - return 0; + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x00); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xd6, 0x01); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xec, + 0x64, 0xdc, 0xec, 0x3b, 0x52, 0x00, 0x0b, 0x0b, + 0x13, 0x15, 0x68, 0x0b, 0x95); + mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0xb0, 0x03); + + mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); + if (!dsi_ctx.accum_err) + usleep_range(2000, 3000); + mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); + mipi_dsi_msleep(&dsi_ctx, 120); } static int jdi_fhd_r63452_prepare(struct drm_panel *panel) { struct jdi_fhd_r63452 *ctx = to_jdi_fhd_r63452(panel); - struct device *dev = &ctx->dsi->dev; int ret; jdi_fhd_r63452_reset(ctx); ret = jdi_fhd_r63452_on(ctx); - if (ret < 0) { - dev_err(dev, "Failed to initialize panel: %d\n", ret); + if (ret < 0) gpiod_set_value_cansleep(ctx->reset_gpio, 1); - return ret; - } - return 0; + return ret; } static int jdi_fhd_r63452_unprepare(struct drm_panel *panel) { struct jdi_fhd_r63452 *ctx = to_jdi_fhd_r63452(panel); - struct device *dev = &ctx->dsi->dev; - int ret; - ret = jdi_fhd_r63452_off(ctx); - if (ret < 0) - dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + /* + * NOTE: We don't return an error here as while the panel won't have + * been cleanly turned off at least we've asserted the reset signal + * so it should be safe to power it back on again later + */ + jdi_fhd_r63452_off(ctx); gpiod_set_value_cansleep(ctx->reset_gpio, 1);