[PATCH 6/6] drm/radeon: Send out the full AUX address

[ville.syrj...@linux.intel.com]

From: Ville Syrjälä <ville.syrj...@linux.intel.com>

AUX addresses are 20 bits long. Send out the entire address instead of
just the low 16 bits.

Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian König" <christian.koenig at amd.com>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/radeon/atombios_dp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_dp.c 
b/drivers/gpu/drm/radeon/atombios_dp.c
index ca372c5..bd73b40 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) {
-- 
2.4.6