Display controllers need to know if the MIPI DSI bridge is running in command or video mode. Allow platform drivers to register a callback for being notified about the used mode.
Signed-off-by: Michael Tretter m.tretter@pengutronix.de --- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index 993402f1f7c7..a9dac66c834f 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -255,6 +255,7 @@ struct exynos_dsi_driver_data { unsigned int num_bits_resol; const unsigned int *reg_values; void (*te_handler)(struct drm_encoder *encoder); + void (*set_command_node)(struct drm_encoder *encoder, bool enable); };
struct exynos_dsi { @@ -471,6 +472,19 @@ static void exynos_dsi_te_handler(struct drm_encoder *encoder) exynos_drm_crtc_te_handler(encoder->crtc); }
+static void exynos_dsi_set_command_mode(struct drm_encoder *encoder, + bool enable) +{ + struct drm_device *drm = encoder->dev; + struct exynos_drm_crtc *crtc; + + crtc = exynos_drm_crtc_get_by_type(drm, EXYNOS_DISPLAY_TYPE_LCD); + if (IS_ERR(crtc)) + return; + + crtc->i80_mode = enable; +} + static const struct exynos_dsi_driver_data exynos3_dsi_driver_data = { .reg_ofs = EXYNOS_REG_OFS, .plltmr_reg = 0x50, @@ -482,6 +496,7 @@ static const struct exynos_dsi_driver_data exynos3_dsi_driver_data = { .num_bits_resol = 11, .reg_values = reg_values, .te_handler = exynos_dsi_te_handler, + .set_command_node = exynos_dsi_set_command_mode, };
static const struct exynos_dsi_driver_data exynos4_dsi_driver_data = { @@ -495,6 +510,7 @@ static const struct exynos_dsi_driver_data exynos4_dsi_driver_data = { .num_bits_resol = 11, .reg_values = reg_values, .te_handler = exynos_dsi_te_handler, + .set_command_node = exynos_dsi_set_command_mode, };
static const struct exynos_dsi_driver_data exynos5_dsi_driver_data = { @@ -506,6 +522,7 @@ static const struct exynos_dsi_driver_data exynos5_dsi_driver_data = { .num_bits_resol = 11, .reg_values = reg_values, .te_handler = exynos_dsi_te_handler, + .set_command_node = exynos_dsi_set_command_mode, };
static const struct exynos_dsi_driver_data exynos5433_dsi_driver_data = { @@ -518,6 +535,7 @@ static const struct exynos_dsi_driver_data exynos5433_dsi_driver_data = { .num_bits_resol = 12, .reg_values = exynos5433_reg_values, .te_handler = exynos_dsi_te_handler, + .set_command_node = exynos_dsi_set_command_mode, };
static const struct exynos_dsi_driver_data exynos5422_dsi_driver_data = { @@ -530,6 +548,7 @@ static const struct exynos_dsi_driver_data exynos5422_dsi_driver_data = { .num_bits_resol = 12, .reg_values = exynos5422_reg_values, .te_handler = exynos_dsi_te_handler, + .set_command_node = exynos_dsi_set_command_mode, };
static const struct of_device_id exynos_dsi_of_match[] = { @@ -1651,8 +1670,9 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host, dsi->lanes = device->lanes; dsi->format = device->format; dsi->mode_flags = device->mode_flags; - exynos_drm_crtc_get_by_type(drm, EXYNOS_DISPLAY_TYPE_LCD)->i80_mode = - !(dsi->mode_flags & MIPI_DSI_MODE_VIDEO); + if (dsi->driver_data->set_command_node) + dsi->driver_data->set_command_node(encoder, + !(dsi->mode_flags & MIPI_DSI_MODE_VIDEO));
mutex_unlock(&drm->mode_config.mutex);