diff options
| author | Luben Tuikov <luben.tuikov@amd.com> | 2021-02-19 23:37:28 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-07-01 00:24:40 -0400 |
| commit | 16736627610da0713f603ba5fd02cf723cbf5a8d (patch) | |
| tree | 8c91b3c765dccae68633fec465c01b6a84bdf3cb | |
| parent | 16ef797737c84462a3632dd4f8d77fe0f000428b (diff) | |
| download | linux-16736627610da0713f603ba5fd02cf723cbf5a8d.tar.bz2 | |
drm/amd/pm: Extend the I2C quirk table
Extend the I2C quirk table for SMU access
controlled I2C adapters. Let the kernel I2C layer
check that the messages all have the same address,
and that their combined size doesn't exceed the
maximum size of a SMU software I2C request.
Suggested-by: Jean Delvare <jdelvare@suse.de>
Cc: Jean Delvare <jdelvare@suse.de>
Cc: Alexander Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Lijo Lazar <Lijo.Lazar@amd.com>
Cc: Stanley Yang <Stanley.Yang@amd.com>
Cc: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Alexander Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c | 5 |
3 files changed, 12 insertions, 3 deletions
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 54aa48a91e6d..c9383d2831a4 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c @@ -2036,8 +2036,11 @@ static const struct i2c_algorithm arcturus_i2c_algo = { static const struct i2c_adapter_quirks arcturus_i2c_control_quirks = { - .max_read_len = MAX_SW_I2C_COMMANDS, + .flags = I2C_AQ_COMB | I2C_AQ_COMB_SAME_ADDR, + .max_read_len = MAX_SW_I2C_COMMANDS, .max_write_len = MAX_SW_I2C_COMMANDS, + .max_comb_1st_msg_len = 2, + .max_comb_2nd_msg_len = MAX_SW_I2C_COMMANDS - 2, }; static int arcturus_i2c_control_init(struct smu_context *smu, struct i2c_adapter *control) 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 f8b194cabc0d..77969dbc283e 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c @@ -2834,8 +2834,11 @@ static const struct i2c_algorithm navi10_i2c_algo = { }; static const struct i2c_adapter_quirks navi10_i2c_control_quirks = { - .max_read_len = MAX_SW_I2C_COMMANDS, + .flags = I2C_AQ_COMB | I2C_AQ_COMB_SAME_ADDR, + .max_read_len = MAX_SW_I2C_COMMANDS, .max_write_len = MAX_SW_I2C_COMMANDS, + .max_comb_1st_msg_len = 2, + .max_comb_2nd_msg_len = MAX_SW_I2C_COMMANDS - 2, }; static int navi10_i2c_control_init(struct smu_context *smu, struct i2c_adapter *control) 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 2444e13c4901..37cfe0ccd686 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 @@ -3541,8 +3541,11 @@ static const struct i2c_algorithm sienna_cichlid_i2c_algo = { }; static const struct i2c_adapter_quirks sienna_cichlid_i2c_control_quirks = { - .max_read_len = MAX_SW_I2C_COMMANDS, + .flags = I2C_AQ_COMB | I2C_AQ_COMB_SAME_ADDR, + .max_read_len = MAX_SW_I2C_COMMANDS, .max_write_len = MAX_SW_I2C_COMMANDS, + .max_comb_1st_msg_len = 2, + .max_comb_2nd_msg_len = MAX_SW_I2C_COMMANDS - 2, }; static int sienna_cichlid_i2c_control_init(struct smu_context *smu, struct i2c_adapter *control) |