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-rw-r--r--drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c
index d658b862430a..b2786a704708 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_i2c_hw.c
@@ -306,6 +306,8 @@ static bool setup_engine(
#if defined(CONFIG_DRM_AMD_DC_DCN2_0)
uint32_t reset_length = 0;
#endif
+ /* we have checked I2c not used by DMCU, set SW use I2C REQ to 1 to indicate SW using it*/
+ REG_UPDATE(DC_I2C_ARBITRATION, DC_I2C_SW_USE_I2C_REG_REQ, 1);
/* we have checked I2c not used by DMCU, set SW use I2C REQ to 1 to indicate SW using it*/
REG_UPDATE(DC_I2C_ARBITRATION, DC_I2C_SW_USE_I2C_REG_REQ, 1);