drm/i915: POSTING_READs are simply flushes and so irrelevant to tracing

As we use POSTING_READ to flush the write to the register before
proceeding, we do not care what the return value is and similar we do
not care for the read to be recorded whilst tracing register
read/writes.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c
index 8f5c0d33ea00..d2d493a24e65 100644
--- a/drivers/gpu/drm/i915/intel_i2c.c
+++ b/drivers/gpu/drm/i915/intel_i2c.c
@@ -126,7 +126,7 @@ static void set_clock(void *data, int state_high)
                         GPIO_CLOCK_VAL_MASK;
 
         I915_WRITE_NOTRACE(gpio->reg, reserved | clock_bits);
-        POSTING_READ_NOTRACE(gpio->reg);
+        POSTING_READ(gpio->reg);
 }
 
 static void set_data(void *data, int state_high)
@@ -143,7 +143,7 @@ static void set_data(void *data, int state_high)
                         GPIO_DATA_VAL_MASK;
 
         I915_WRITE_NOTRACE(gpio->reg, reserved | data_bits);
-        POSTING_READ_NOTRACE(gpio->reg);
+        POSTING_READ(gpio->reg);
 }
 
 static struct i2c_adapter *