[PATCH v2 6/6] drm/i915/dp: Dump the LTTPR PHY descriptors

[Imre Deak]

On Thu, Jul 11, 2024 at 03:20:19PM +0530, Nautiyal, Ankit K wrote:
> 
> On 7/9/2024 12:30 AM, Imre Deak wrote:
> > Dump the descriptor of the detected LTTPRs in non-transparent mode to
> > help the debugging related to LTTPRs easier.
> > 
> > v2: Use drm_dp_dump_lttpr_desc() instead of the driver specific
> >      equivalent.
> > 
> > Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com> # v1
> > Signed-off-by: Imre Deak <imre.deak at intel.com>
> > ---
> >   drivers/gpu/drm/i915/display/intel_dp_link_training.c | 5 ++++-
> >   1 file changed, 4 insertions(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> > index af0b71bdf1fcf..ab72aa1d664dc 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
> > @@ -20,6 +20,7 @@
> >    * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
> >    * IN THE SOFTWARE.
> >    */
> > +#include <drm/display/drm_dp_helper.h>
> 
> nitpick : I wonder if we should leave a line after the license header.

Not sure if there is a rule for this, but makes sense, will add it.

> In any case patch looks good to me.
> 
> Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>

Thanks.

> 
> >   #include "i915_drv.h"
> >   #include "intel_display_types.h"
> > @@ -206,8 +207,10 @@ static int intel_dp_init_lttpr(struct intel_dp *intel_dp, const u8 dpcd[DP_RECEI
> >   	lttpr_count = intel_dp_init_lttpr_phys(intel_dp, dpcd);
> > -	for (i = 0; i < lttpr_count; i++)
> > +	for (i = 0; i < lttpr_count; i++) {
> >   		intel_dp_read_lttpr_phy_caps(intel_dp, dpcd, DP_PHY_LTTPR(i));
> > +		drm_dp_dump_lttpr_desc(&intel_dp->aux, DP_PHY_LTTPR(i));
> > +	}
> >   	return lttpr_count;
> >   }