[PATCH 2/3] drm/i915: 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.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 3967af1..637dd53 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -942,8 +942,9 @@ intel_dp_aux_transfer(struct drm_dp_aux *aux, struct 
drm_dp_aux_msg *msg)
        size_t txsize, rxsize;
        int ret;

-       txbuf[0] = msg->request << 4;
-       txbuf[1] = msg->address >> 8;
+       txbuf[0] = (msg->request << 4) |
+               ((msg->address >> 16) & 0xf);
+       txbuf[1] = (msg->address >> 8) & 0xff;
        txbuf[2] = msg->address & 0xff;
        txbuf[3] = msg->size - 1;

-- 
2.0.5