[PATCH 5/5] drm/i915: Make use of unused variable in hsw_write_infoframe()

[José Roberto de Souza]

data_reg was not being used but it can be used to reduce the number of
calls to hsw_dip_data_reg() and just increment the reg by the size of
uint32.

Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/intel_hdmi.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index f5d7bfb43006..ef258eac8ae8 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -393,15 +393,11 @@ static void hsw_write_infoframe(struct drm_encoder *encoder,
 	I915_WRITE(ctl_reg, val);
 
 	mmiowb();
-	for (i = 0; i < len; i += 4) {
-		I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder,
-					    type, i >> 2), *data);
-		data++;
-	}
+	for (i = 0; i < len; i += 4, data++, data_reg.reg += 4)
+		I915_WRITE(data_reg, *data);
 	/* Write every possible data byte to force correct ECC calculation. */
-	for (; i < data_size; i += 4)
-		I915_WRITE(hsw_dip_data_reg(dev_priv, cpu_transcoder,
-					    type, i >> 2), 0);
+	for (; i < data_size; i += 4, data_reg.reg += 4)
+		I915_WRITE(data_reg, 0);
 	mmiowb();
 
 	val |= hsw_infoframe_enable(type);
-- 
2.16.1