[PATCH] drm/amdgpu: fix a warning in smu11 i2c code

[Alex Deucher]

make sure reg is initialized in smu_v11_0_i2c_set_clock_gating.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c b/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c
index 4cfcef0feff8..7d0d4c57b315 100644
--- a/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c
+++ b/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c
@@ -50,7 +50,7 @@
 static void smu_v11_0_i2c_set_clock_gating(struct i2c_adapter *control, bool en)
 {
 	struct amdgpu_device *adev = to_amdgpu_device(control);
-	uint32_t reg;
+	uint32_t reg = RREG32_SOC15(SMUIO, 0, mmSMUIO_PWRMGT);
 
 	reg = REG_SET_FIELD(reg, SMUIO_PWRMGT, i2c_clk_gate_en, en ? 1 : 0);
 	WREG32_SOC15(SMUIO, 0, mmSMUIO_PWRMGT, reg);
-- 
2.20.1