From: Krzysztof Hałasa Date: Fri, 9 May 2025 09:26:55 +0000 (+0200) Subject: imx8m-blk-ctrl: set ISI panic write hurry level X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c01fba0b4869cada5403fffff416cd1675dba078;p=thirdparty%2Flinux.git imx8m-blk-ctrl: set ISI panic write hurry level Apparently, ISI needs cache settings similar to LCDIF. Otherwise we get artefacts in the image. Tested on i.MX8MP. Signed-off-by: Krzysztof Hałasa Link: https://lore.kernel.org/r/m3ldr69lsw.fsf@t19.piap.pl Signed-off-by: Ulf Hansson --- diff --git a/drivers/pmdomain/imx/imx8m-blk-ctrl.c b/drivers/pmdomain/imx/imx8m-blk-ctrl.c index 912802b5215bd..5c83e5599f1ea 100644 --- a/drivers/pmdomain/imx/imx8m-blk-ctrl.c +++ b/drivers/pmdomain/imx/imx8m-blk-ctrl.c @@ -665,6 +665,11 @@ 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) { @@ -694,6 +699,11 @@ 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;