diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 17c69101d086..4d2f704ec0a1 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -661,6 +661,16 @@ static uint32_t vlv_get_aux_clock_divider(struct intel_dp *intel_dp, int index) return index ? 0 : 100; } +static uint32_t skl_get_aux_clock_divider(struct intel_dp *intel_dp, int index) +{ + /* + * SKL doesn't need us to program the AUX clock divider (Hardware will + * derive the clock from CDCLK automatically). We still implement the + * get_aux_clock_divider vfunc to plug-in into the existing code. + */ + return index ? 0 : 1; +} + static uint32_t i9xx_get_aux_send_ctl(struct intel_dp *intel_dp, bool has_aux_irq, int send_bytes, @@ -5083,7 +5093,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, intel_dp->pps_pipe = INVALID_PIPE; /* intel_dp vfuncs */ - if (IS_VALLEYVIEW(dev)) + if (INTEL_INFO(dev)->gen >= 9) + intel_dp->get_aux_clock_divider = skl_get_aux_clock_divider; + else if (IS_VALLEYVIEW(dev)) intel_dp->get_aux_clock_divider = vlv_get_aux_clock_divider; else if (IS_HASWELL(dev) || IS_BROADWELL(dev)) intel_dp->get_aux_clock_divider = hsw_get_aux_clock_divider; |