On Tue, Feb 21, 2023 at 01:40:35AM +0200, Ville Syrjala wrote:
> diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
> index f35ef3675d39..19be8862261b 100644
> --- a/drivers/gpu/drm/i915/display/intel_bios.c
> +++ b/drivers/gpu/drm/i915/display/intel_bios.c
> @@ -2221,33 +2221,33 @@ static u8 map_ddc_pin(struct drm_i915_private *i915, u8 vbt_pin)
> vbt_pin);
> return 0;
> }
>
> -static enum port get_port_by_ddc_pin(struct drm_i915_private *i915, u8 ddc_pin)
> +static struct intel_encoder *
> +get_encoder_by_ddc_pin(struct drm_i915_private *i915, u8 ddc_pin)
> {
> - enum port port;
> + struct intel_encoder *encoder;
>
> if (!ddc_pin)
> - return PORT_NONE;
> + return NULL;
>
> - for_each_port(port) {
> - const struct intel_bios_encoder_data *devdata =
> - i915->display.vbt.ports[port];
> + for_each_intel_encoder(&i915->drm, encoder) {
> + const struct intel_bios_encoder_data *devdata = encoder->devdata;
>
> if (devdata && ddc_pin == devdata->child.ddc_pin)
> - return port;
> + return encoder;
This still screws up bat-jsl-3 where DDI A and DDI C both claim to use
the same ddc_pin. But DDI A is declared as eDP, so won't even use DDC.
Se we should just ignore it here.
I suppose to correct fix would to look at the actually selected
ddc_pin/aux_ch here, rather than what the VBT declared.
> }
>
> - return PORT_NONE;
> + return NULL;
> }
>
--
Ville Syrjälä
Intel
