Am 22.04.2014 08:02, schrieb Alex Deucher:
> The hpd (hot plug detect) pin assignment got lost
> in the conversion to to the common i2c over aux
> code. Without this information, aux transactions
> do not work properly. Fixes DP failures.
>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Added to my 3.15 queue.
Does this also fix the issue Ed Tomlinson <edt at aei.ca> reported about?
Christian.
> ---
> drivers/gpu/drm/radeon/atombios_dp.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/radeon/atombios_dp.c
> b/drivers/gpu/drm/radeon/atombios_dp.c
> index 1593652..bc0119f 100644
> --- a/drivers/gpu/drm/radeon/atombios_dp.c
> +++ b/drivers/gpu/drm/radeon/atombios_dp.c
> @@ -209,6 +209,7 @@ void radeon_dp_aux_init(struct radeon_connector
> *radeon_connector)
> {
> int ret;
>
> + radeon_connector->ddc_bus->rec.hpd = radeon_connector->hpd.hpd;
> radeon_connector->ddc_bus->aux.dev = radeon_connector->base.kdev;
> radeon_connector->ddc_bus->aux.transfer = radeon_dp_aux_transfer;
> ret = drm_dp_aux_register_i2c_bus(&radeon_connector->ddc_bus->aux);
