Currently, BXT_PP is hardcoded with value '0'. It practically disabled eDP backlight on MRB (BXT) platform.
This patch will tell which BXT_PP registers (there are two set of PP_CONTROL in the spec) to be used as defined in VBT (Video Bios Timing table) and this will enabled eDP backlight controller on MRB (BXT) platform. Change-Id: I42242d8def30d09298b629e3cd4828016189c3fa Signed-off-by: Mustamin B Mustaffa <[email protected]> Tracked-On: https://jira01.devtools.intel.com/browse/OAM-46254 --- drivers/gpu/drm/i915/intel_dp.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index d1670b8..124f58b 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -591,13 +591,8 @@ bxt_power_sequencer_idx(struct intel_dp *intel_dp) /* We should never land here with regular DP ports */ WARN_ON(!is_edp(intel_dp)); - /* - * TODO: BXT has 2 PPS instances. The correct port->PPS instance - * mapping needs to be retrieved from VBT, for now just hard-code to - * use instance #0 always. - */ if (!intel_dp->pps_reset) - return 0; + return dev_priv->vbt.backlight.controller; intel_dp->pps_reset = false; -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
