From: Wyatt Wood <wyatt.w...@amd.com>
[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.w...@amd.com>
Reviewed-by: Anthony Koo <anthony....@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
---
drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c | 34 +++++++++----------
1 file 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 59b2f0b621bd..8baebb594de5 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_abm.c
@@ -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
--
2.26.0
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