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| author | Krzysztof Hałasa <khalasa@piap.pl> | 2025-05-09 11:26:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 16:28:19 +0200 |
| commit | 7589729947aa3aa6fa6d91afde949479ea469bce (patch) | |
| tree | 328bdef96301954a8a3ab2a12f69bbf30b35bd0f /drivers/pmdomain | |
| parent | ac62b8f82b240e45dcea18dee37174cc4264bee2 (diff) | |
| download | linux-7589729947aa3aa6fa6d91afde949479ea469bce.tar.gz linux-7589729947aa3aa6fa6d91afde949479ea469bce.tar.bz2 linux-7589729947aa3aa6fa6d91afde949479ea469bce.zip | |
imx8m-blk-ctrl: set ISI panic write hurry level
[ Upstream commit c01fba0b4869cada5403fffff416cd1675dba078 ]
Apparently, ISI needs cache settings similar to LCDIF.
Otherwise we get artefacts in the image.
Tested on i.MX8MP.
Signed-off-by: Krzysztof Hałasa <khalasa@piap.pl>
Link: https://lore.kernel.org/r/m3ldr69lsw.fsf@t19.piap.pl
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/pmdomain')
| -rw-r--r-- | drivers/pmdomain/imx/imx8m-blk-ctrl.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/pmdomain/imx/imx8m-blk-ctrl.c b/drivers/pmdomain/imx/imx8m-blk-ctrl.c index cc5ef6e2f0a8..0dfaf1d14035 100644 --- a/drivers/pmdomain/imx/imx8m-blk-ctrl.c +++ b/drivers/pmdomain/imx/imx8m-blk-ctrl.c @@ -664,6 +664,11 @@ static const struct imx8m_blk_ctrl_data imx8mn_disp_blk_ctl_dev_data = { #define LCDIF_1_RD_HURRY GENMASK(15, 13) #define LCDIF_0_RD_HURRY GENMASK(12, 10) +#define ISI_CACHE_CTRL 0x50 +#define ISI_V_WR_HURRY GENMASK(28, 26) +#define ISI_U_WR_HURRY GENMASK(25, 23) +#define ISI_Y_WR_HURRY GENMASK(22, 20) + static int imx8mp_media_power_notifier(struct notifier_block *nb, unsigned long action, void *data) { @@ -693,6 +698,11 @@ static int imx8mp_media_power_notifier(struct notifier_block *nb, regmap_set_bits(bc->regmap, LCDIF_ARCACHE_CTRL, FIELD_PREP(LCDIF_1_RD_HURRY, 7) | FIELD_PREP(LCDIF_0_RD_HURRY, 7)); + /* Same here for ISI */ + regmap_set_bits(bc->regmap, ISI_CACHE_CTRL, + FIELD_PREP(ISI_V_WR_HURRY, 7) | + FIELD_PREP(ISI_U_WR_HURRY, 7) | + FIELD_PREP(ISI_Y_WR_HURRY, 7)); } return NOTIFY_OK; |