diff options
| author | Ville Syrjälä | 2015-08-27 17:23:31 +0300 |
|---|---|---|
| committer | Alex Deucher | 2015-08-31 11:38:29 -0400 |
| commit | 3f8340cc72c9a1a4b49bce7802afd7f248400ef5 (patch) | |
| tree | df1748057e0ac2443b2d0b993300994b72f7d921 | |
| parent | 6e7a3840745c950c37d37cbb0af2e753a765d4ec (diff) | |
drm/radeon/atom: Send out the full AUX address
AUX addresses are 20 bits long. Send out the entire address instead of
just the low 16 bits.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/radeon/atombios_dp.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index f81e0d7d0232..9cd49c584263 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -171,8 +171,9 @@ radeon_dp_aux_transfer_atom(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg) return -E2BIG; tx_buf[0] = msg->address & 0xff; - tx_buf[1] = msg->address >> 8; - tx_buf[2] = msg->request << 4; + tx_buf[1] = (msg->address >> 8) & 0xff; + tx_buf[2] = (msg->request << 4) | + ((msg->address >> 16) & 0xf); tx_buf[3] = msg->size ? (msg->size - 1) : 0; switch (msg->request & ~DP_AUX_I2C_MOT) { |