fwd to the list. ---------- Forwarded message ---------- From: Alex Deucher <alexdeucher@xxxxxxxxx> Date: Mon, Mar 16, 2015 at 9:49 AM Subject: Re: [PATCH 0/5] drm/dp: i2c-over-aux short write support To: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> On Fri, Mar 13, 2015 at 12:13 PM, <ville.syrjala@xxxxxxxxxxxxxxx> wrote: > From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > > This series tries to implement support for short i2c-over-aux writes. > > I did notice that my monitor (HP ZR24w) does support DDC/CI so I was > able to do some writes, but I only saw native defers instead of i2c > defers/short acks. So I've not actually been able to test this. > > Another complication with DDC/CI seems to be that the monitor doesn't > seem to like the default 100kHz bus speed. I had to drop it to 10kHz > to make it reliable (my dongle supports bus speed control fortunately). > Currently we have no standard way to configure the bus speed AFAICS, > so at least with this monitor DDC/CI is a bit useless. > > I tried to fix up radeon and tegra too. gma500 I left alone since it's > not using dp i2c helper. > > Ville Syrjälä (5): > drm/dp: s/I2C_STATUS/I2C_WRITE_STATUS_UPDATE/ > drm/i915: Handle DP_AUX_I2C_WRITE_STATUS_UPDATE > drm/radeon: Handle DP_AUX_I2C_WRITE_STATUS_UPDATE > drm/tegra: Handle I2C_WRITE_STATUS_UPDATE for address only writes > drm/dp: Use I2C_WRITE_STATUS_UPDATE to drain partial I2C_WRITE > requests Patches 1, 3, 5 are: Acked-by: Alex Deucher <alexander.deucher@xxxxxxx> > > drivers/gpu/drm/drm_dp_helper.c | 42 ++++++++++++++++++++++++++++++++---- > drivers/gpu/drm/i915/intel_dp.c | 1 + > drivers/gpu/drm/radeon/atombios_dp.c | 1 + > drivers/gpu/drm/tegra/dpaux.c | 3 ++- > include/drm/drm_dp_helper.h | 2 +- > 5 files changed, 43 insertions(+), 6 deletions(-) > > -- > 2.0.5 > > _______________________________________________ > dri-devel mailing list > dri-devel@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
