From: Charlene Liu Date: Thu, 3 May 2018 21:51:07 +0000 (-0400) Subject: drm/amd/display: Clean up submit_channel_request X-Git-Tag: for-linus-20180825~57^2~40^2~90 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=66e48cd37147e153cef61bcbfbfa4771fe632207;p=linux-block.git drm/amd/display: Clean up submit_channel_request Signed-off-by: Charlene Liu Reviewed-by: Vitaly Prosyak Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c index 5f47f6c007ac..90535787a461 100644 --- a/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c +++ b/drivers/gpu/drm/amd/display/dc/i2caux/dce110/aux_engine_dce110.c @@ -198,27 +198,27 @@ static void submit_channel_request( ((request->type == AUX_TRANSACTION_TYPE_I2C) && ((request->action == I2CAUX_TRANSACTION_ACTION_I2C_WRITE) || (request->action == I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT))); + if (REG(AUXN_IMPCAL)) { + /* clear_aux_error */ + REG_UPDATE_SEQ(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, + 1, + 0); - /* clear_aux_error */ - REG_UPDATE_SEQ(AUXN_IMPCAL, AUXN_CALOUT_ERROR_AK, - 1, - 0); - - REG_UPDATE_SEQ(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, - 1, - 0); - - /* force_default_calibrate */ - REG_UPDATE_1BY1_2(AUXN_IMPCAL, - AUXN_IMPCAL_ENABLE, 1, - AUXN_IMPCAL_OVERRIDE_ENABLE, 0); + REG_UPDATE_SEQ(AUXP_IMPCAL, AUXP_CALOUT_ERROR_AK, + 1, + 0); - /* bug? why AUXN update EN and OVERRIDE_EN 1 by 1 while AUX P toggles OVERRIDE? */ + /* force_default_calibrate */ + REG_UPDATE_1BY1_2(AUXN_IMPCAL, + AUXN_IMPCAL_ENABLE, 1, + AUXN_IMPCAL_OVERRIDE_ENABLE, 0); - REG_UPDATE_SEQ(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, - 1, - 0); + /* bug? why AUXN update EN and OVERRIDE_EN 1 by 1 while AUX P toggles OVERRIDE? */ + REG_UPDATE_SEQ(AUXP_IMPCAL, AUXP_IMPCAL_OVERRIDE_ENABLE, + 1, + 0); + } /* set the delay and the number of bytes to write */ /* The length include