From: Dien Pham <dien.pham.ry@xxxxxxxxxxx> Description in HWM rev0.51E, 9.4 Usage notes, page 455 tells "It takes several hundreds of microseconds to shutting off and resuming power domain. Because actual time required for shutting off and resuming depends on the status of on-board power line, shutoff/resume time is not guaranteed by electrical specification" Let's assume the safe value of waiting is about 1000us. Signed-off-by: Dien Pham <dien.pham.ry@xxxxxxxxxxx> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx> Signed-off-by: Tho Vu <tho.vu.wh@xxxxxxxxxxx> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> --- v2 -> v3 - remove Signed-off-by Geert - add Reviewed-by Geert drivers/pmdomain/renesas/rcar-sysc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pmdomain/renesas/rcar-sysc.c b/drivers/pmdomain/renesas/rcar-sysc.c index eed47696e825..35d9aa0dfab8 100644 --- a/drivers/pmdomain/renesas/rcar-sysc.c +++ b/drivers/pmdomain/renesas/rcar-sysc.c @@ -45,10 +45,10 @@ #define PWRER_OFFS 0x14 /* Power Shutoff/Resume Error */ -#define SYSCSR_TIMEOUT 100 +#define SYSCSR_TIMEOUT 1000 #define SYSCSR_DELAY_US 1 -#define PWRER_RETRIES 100 +#define PWRER_RETRIES 1000 #define PWRER_DELAY_US 1 #define SYSCISR_TIMEOUT 1000 -- 2.25.1
