From b36d8d6b7748e5b0089c0f901468f64256ce5d0e Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 21 Jan 2021 23:56:32 -0500 Subject: drm/amdgpu: only set restart on first cmd of the smu i2c transaction Not sure how the firmware interprets these. Signed-off-by: Alex Deucher Reviewed-by: Luben Tuikov --- drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 2 +- drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 2 +- drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/amd') diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c index 2cc6c65f45b4..945e25df9165 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c @@ -1984,7 +1984,7 @@ static int arcturus_i2c_xfer(struct i2c_adapter *i2c_adap, if ((msg[i].flags & I2C_M_STOP) || (!remaining_bytes)) cmd->CmdConfig |= CMDCONFIG_STOP_MASK; - if ((i > 0) && !(msg[i].flags & I2C_M_NOSTART)) + if ((i > 0) && (j == 0) && !(msg[i].flags & I2C_M_NOSTART)) cmd->CmdConfig |= CMDCONFIG_RESTART_BIT; } } diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c index 049d05de08dc..b6a2393e346b 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c @@ -2783,7 +2783,7 @@ static int navi10_i2c_xfer(struct i2c_adapter *i2c_adap, if ((msg[i].flags & I2C_M_STOP) || (!remaining_bytes)) cmd->CmdConfig |= CMDCONFIG_STOP_MASK; - if ((i > 0) && !(msg[i].flags & I2C_M_NOSTART)) + if ((i > 0) && (j == 0) && !(msg[i].flags & I2C_M_NOSTART)) cmd->CmdConfig |= CMDCONFIG_RESTART_BIT; } } diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c index 1d06641ad878..9e49505a6ac1 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c @@ -3490,7 +3490,7 @@ static int sienna_cichlid_i2c_xfer(struct i2c_adapter *i2c_adap, if ((msg[i].flags & I2C_M_STOP) || (!remaining_bytes)) cmd->CmdConfig |= CMDCONFIG_STOP_MASK; - if ((i > 0) && !(msg[i].flags & I2C_M_NOSTART)) + if ((i > 0) && (j == 0) && !(msg[i].flags & I2C_M_NOSTART)) cmd->CmdConfig |= CMDCONFIG_RESTART_BIT; } } -- cgit