diff options
| author | Chuong Hoang <chuongh@google.com> | 2022-07-25 16:43:12 +0000 |
|---|---|---|
| committer | Chuong Hoang <chuongh@google.com> | 2022-07-26 18:39:30 +0000 |
| commit | ee5b54fc6e338029c7211ae133df56c4a81fa707 (patch) | |
| tree | 39ea886d1b8d1faefd13ebfefd8b48ea74a71501 | |
| parent | e2773583109a9565ea059912f29ad15cc2cf061c (diff) | |
| download | exynos-ee5b54fc6e338029c7211ae133df56c4a81fa707.tar.gz | |
Brightness: Ignore brightness set during doze.
Bug: 233237051
Bug: 233836355
Test: Device boots normally. Brightness set during doze is ignored.
Signed-off-by: Chuong Hoang <chuongh@google.com>
Change-Id: I36d42fc0bef1032bc536057e4f7eb48f9ed11290
| -rw-r--r-- | drivers/video/fbdev/exynos/dpu30/panels/panel-boe-wf012fbm.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/video/fbdev/exynos/dpu30/panels/panel-boe-wf012fbm.c b/drivers/video/fbdev/exynos/dpu30/panels/panel-boe-wf012fbm.c index b848477b7252..7e53d225802d 100644 --- a/drivers/video/fbdev/exynos/dpu30/panels/panel-boe-wf012fbm.c +++ b/drivers/video/fbdev/exynos/dpu30/panels/panel-boe-wf012fbm.c @@ -375,11 +375,25 @@ static int wf012fbm_set_light(struct exynos_panel_device *panel, u32 br_val) { u8 data; struct dsim_device *dsim = get_dsim_drvdata(0); - mutex_lock(&panel->ops_lock); - /* WRDISBV(8bit): 1st DBV[7:0] */ - data = br_val & 0xFF; - dsim_write_data_seq(dsim, false, 0x51, data); - mutex_unlock(&panel->ops_lock); + /* + * Only set brightness if it's not currently in doze mode as AP + * assumes DBVs are in 650 nits range while in fact it could be + * in 150 nits range if the device already entered doze. + * + * In order to prevent wrong brightness set due to this 650/150 + * nits scaling, the MCU will be solely responsible for controlling + * display brightness during doze (150 nits range). Thus, this + * function would do nothing if the device is currently in doze. + */ + if (dsim->state != DSIM_STATE_DOZE) { + mutex_lock(&panel->ops_lock); + /* WRDISBV(8bit): 1st DBV[7:0] */ + data = br_val & 0xFF; + dsim_write_data_seq(dsim, false, 0x51, data); + mutex_unlock(&panel->ops_lock); + } else { + DPU_INFO_PANEL("%s: skip doze br=%d\n", __func__, br_val); + } return 0; } |