From: Deepak M <[email protected]> For dual link panel scenarios there are new fields added in the VBT which indicate on which port the PWM cntrl and CABC ON/OFF commands needs to be sent.
v2: Moving the comment to intel_dsi.h(Jani) v3: Renaming the field names (Jani) v4 by Jani: make this patch only about VBT Cc: Jani Nikula <[email protected]> Cc: Daniel Vetter <[email protected]> Cc: Yetunde Adebisi <[email protected]> Signed-off-by: Deepak M <[email protected]> Signed-off-by: Jani Nikula <[email protected]> --- drivers/gpu/drm/i915/intel_bios.c | 10 ++++++++++ drivers/gpu/drm/i915/intel_bios.h | 8 +++++++- 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 9c406b0f4173..6985519921b4 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -746,6 +746,16 @@ parse_mipi_config(struct drm_i915_private *dev_priv, return; } + /* + * These fields are introduced from the VBT version 197 onwards, + * so making sure that these bits are set zero in the previous + * versions. + */ + if (dev_priv->vbt.dsi.config->dual_link && bdb->version < 197) { + dev_priv->vbt.dsi.config->dl_dcs_cabc_ports = 0; + dev_priv->vbt.dsi.config->dl_dcs_backlight_ports = 0; + } + /* We have mandatory mipi config blocks. Initialize as generic panel */ dev_priv->vbt.dsi.panel_id = MIPI_DSI_GENERIC_PANEL_ID; } diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index ab0ea315eddb..149c3226e895 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -113,7 +113,13 @@ struct mipi_config { u16 dual_link:2; u16 lane_cnt:2; u16 pixel_overlap:3; - u16 rsvd3:9; + u16 rgb_flip:1; +#define DL_DCS_PORT_A 0x00 +#define DL_DCS_PORT_C 0x01 +#define DL_DCS_PORT_A_AND_C 0x02 + u16 dl_dcs_cabc_ports:2; + u16 dl_dcs_backlight_ports:2; + u16 rsvd3:4; u16 rsvd4; -- 2.1.4 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
