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drm/amd/display: Move enable fractional pwm call

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[Why]
Dmcu init fw call has some logic to initialize abm values.  Since this
doesn't exist on dmcub, must find a proper place for it in the abm
sequence.

[How]
Move enable fractional pwm call.

Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wyatt Wood 2020-03-30 09:08:04 -04:00 committed by Alex Deucher
parent 4c0de7de4c
commit dd5a94ce6c
1 changed files with 17 additions and 17 deletions
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34
drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c
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@ -161,6 +161,21 @@ static void dmcub_set_backlight_level(
REG_WRITE(BIOS_SCRATCH_2, s2);
}
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 void dmub_abm_init(struct abm *abm)
{
struct dce_abm *dce_abm = TO_DMUB_ABM(abm);
@ -199,6 +214,8 @@ static void dmub_abm_init(struct abm *abm)
ABM1_HG_REG_READ_MISSED_FRAME_CLEAR, 1,
ABM1_LS_REG_READ_MISSED_FRAME_CLEAR, 1,
ABM1_BL_REG_READ_MISSED_FRAME_CLEAR, 1);
dmub_abm_enable_fractional_pwm(abm->ctx);
}
static unsigned int dmub_abm_get_current_backlight(struct abm *abm)
@ -259,28 +276,11 @@ 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