On Mon, Apr 7, 2014 at 5:37 AM, Jani Nikula jani.nikula@intel.com wrote:
To support bare address requests used by the drm dp helpers.
Signed-off-by: Jani Nikula jani.nikula@intel.com
Hi Alex, similar to Thierry's patch for i915.
Looks good to me.
Reviewed-by: Alex Deucher alexander.deucher@amd.com
Do you want me to add this to the patch set?
Alex
BR, Jani.
drivers/gpu/drm/i915/intel_dp.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index e48d47ced57b..b435d07fbc08 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -575,7 +575,8 @@ out: return ret; }
-#define HEADER_SIZE 4 +#define BARE_ADDRESS_SIZE 3 +#define HEADER_SIZE (BARE_ADDRESS_SIZE + 1) static ssize_t intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg) { @@ -592,7 +593,7 @@ intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg) switch (msg->request & ~DP_AUX_I2C_MOT) { case DP_AUX_NATIVE_WRITE: case DP_AUX_I2C_WRITE:
txsize = HEADER_SIZE + msg->size;
txsize = msg->size ? HEADER_SIZE + msg->size : BARE_ADDRESS_SIZE; rxsize = 1; if (WARN_ON(txsize > 20))@@ -611,7 +612,7 @@ intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
case DP_AUX_NATIVE_READ: case DP_AUX_I2C_READ:
txsize = HEADER_SIZE;
txsize = msg->size ? HEADER_SIZE : BARE_ADDRESS_SIZE; rxsize = msg->size + 1; if (WARN_ON(rxsize > 20))-- 1.7.9.5