diff options
| author | Wyatt Wood <wyatt.wood@amd.com> | 2020-03-11 15:46:26 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-01 14:44:44 -0400 |
| commit | ac60b2294c9ea4a9c5f0c6c021c9a779243a8995 (patch) | |
| tree | 068b1037c7bf398b405f39dfaa299bd90585058e /drivers/gpu | |
| parent | 16012806e697bdee44329adc3e55631c5ab667f3 (diff) | |
drm/amd/display: Move backlight pwm enable function call
[Why]
Can't call dmub_abm_enable_fractional_pwm from dmub_abm_create as
dmub_srv is still null at this init stage, and therefore can't call to
fw.
[How]
Move call to dmub_abm_init_backlight. This should be the first call from
the driver for ABM.
Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c index 1d9100f8c0ba..81c967917c5b 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c @@ -257,11 +257,28 @@ static bool dmub_abm_immediate_disable(struct abm *abm) return true; } +static void dmub_abm_enable_fractional_pwm(struct dc_context *dc) +{ + union dmub_rb_cmd cmd; + uint32_t fractional_pwm = (dc->dc->config.disable_fractional_pwm == false) ? 1 : 0; + + cmd.abm_set_pwm_frac.header.type = DMUB_CMD__ABM; + cmd.abm_set_pwm_frac.header.sub_type = DMUB_CMD__ABM_SET_PWM_FRAC; + cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.fractional_pwm = fractional_pwm; + cmd.abm_set_pwm_frac.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_pwm_frac_data); + + dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd.abm_set_pwm_frac.header); + dc_dmub_srv_cmd_execute(dc->dmub_srv); + dc_dmub_srv_wait_idle(dc->dmub_srv); +} + static bool dmub_abm_init_backlight(struct abm *abm) { struct dce_abm *dce_abm = TO_DMUB_ABM(abm); uint32_t value; + dmub_abm_enable_fractional_pwm(abm->ctx); + /* It must not be 0, so we have to restore them * Bios bug w/a - period resets to zero, * restoring to cache values which is always correct @@ -331,21 +348,6 @@ static bool dmub_abm_set_backlight_level_pwm( return true; } -static void dmub_abm_enable_fractional_pwm(struct dc_context *dc) -{ - union dmub_rb_cmd cmd; - uint32_t fractional_pwm = (dc->dc->config.disable_fractional_pwm == false) ? 1 : 0; - - cmd.abm_set_pwm_frac.header.type = DMUB_CMD__ABM; - cmd.abm_set_pwm_frac.header.sub_type = DMUB_CMD__ABM_SET_PWM_FRAC; - cmd.abm_set_pwm_frac.abm_set_pwm_frac_data.fractional_pwm = fractional_pwm; - cmd.abm_set_pwm_frac.header.payload_bytes = sizeof(struct dmub_cmd_abm_set_pwm_frac_data); - - dc_dmub_srv_cmd_queue(dc->dmub_srv, &cmd.abm_set_pwm_frac.header); - dc_dmub_srv_cmd_execute(dc->dmub_srv); - dc_dmub_srv_wait_idle(dc->dmub_srv); -} - static bool dmub_abm_load_config(struct abm *abm, unsigned int start_offset, const char *src, @@ -386,8 +388,6 @@ static void dmub_abm_construct( abm_dce->regs = regs; abm_dce->abm_shift = abm_shift; abm_dce->abm_mask = abm_mask; - - dmub_abm_enable_fractional_pwm(ctx); } struct abm *dmub_abm_create( |