diff options
| author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2016-10-03 13:07:02 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2017-04-04 17:03:57 +0300 |
| commit | e947eccbeba45268bf3b5f4e30185d9bb87a293d (patch) | |
| tree | 8d5fc6882175f20319e93c6e402588be7a0c5c38 /drivers/gpu/drm/rcar-du/rcar_du_encoder.c | |
| parent | bf7149f34241dcd6c95ea76b2b5ab4ff33f1c9b9 (diff) | |
drm: rcar-du: Add support for LVDS mode selection
Retrieve the LVDS mode from the panel and configure the LVDS encoder
accordingly. LVDS mode selection is static as LVDS panels can't be
hot-plugged on any of the device supported by the driver. Support for
dynamic mode selection can be implemented in the future when needed.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 31f878ad099d..3a3c9374794e 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -98,6 +98,8 @@ static void rcar_du_encoder_mode_set(struct drm_encoder *encoder, struct drm_connector_state *conn_state) { struct rcar_du_encoder *renc = to_rcar_encoder(encoder); + struct drm_display_info *info = &conn_state->connector->display_info; + enum rcar_lvds_mode mode; rcar_du_crtc_route_output(crtc_state->crtc, renc->output); @@ -111,6 +113,31 @@ static void rcar_du_encoder_mode_set(struct drm_encoder *encoder, } renc->connector = to_rcar_connector(conn_state->connector); + + if (!info->num_bus_formats || !info->bus_formats) { + dev_err(encoder->dev->dev, "no LVDS bus format reported\n"); + return; + } + + switch (info->bus_formats[0]) { + case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: + case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: + mode = RCAR_LVDS_MODE_JEIDA; + break; + case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: + mode = RCAR_LVDS_MODE_VESA; + break; + default: + dev_err(encoder->dev->dev, + "unsupported LVDS bus format 0x%04x\n", + info->bus_formats[0]); + return; + } + + if (info->bus_flags & DRM_BUS_FLAG_DATA_LSB_TO_MSB) + mode |= RCAR_LVDS_MODE_MIRROR; + + rcar_du_lvdsenc_set_mode(renc->lvds, mode); } static const struct drm_encoder_helper_funcs encoder_helper_funcs = { |