From b21b8b8e93c6e648742e1158ecd5e91ceeb48a4d Mon Sep 17 00:00:00 2001 From: Elaine Zhang Date: Thu, 1 Aug 2024 14:54:53 +0800 Subject: [PATCH] rtc: rockchip: config D2A_XO_START for rv1106 Increase the anti-jamming ability of crystal vibration start-up. Change-Id: I9cfeab7d2338cd2a38e6e86b78f6967c2d0bbdd1 Signed-off-by: Elaine Zhang --- drivers/rtc/rtc-rockchip.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/rtc/rtc-rockchip.c b/drivers/rtc/rtc-rockchip.c index 2edc35bc8609..ab1dabb1f3e5 100644 --- a/drivers/rtc/rtc-rockchip.c +++ b/drivers/rtc/rtc-rockchip.c @@ -120,6 +120,9 @@ #define RV1106_RTC_D2A_XO_EN BIT(0) #define RV1106_RTC_D2A_CLK_OUT_EN BIT(5) +/* RV1106_RTC_XO_TRIM bitfields */ +#define RV1106_RTC_D2A_XO_START 0x7 + /* RV1106_RTC_VPTAT_TRIM bitfields */ #define RV1106_CLK_32K_ENABLE BIT(5) #define RV1106_D2A_POR_REG_SEL1 BIT(4) @@ -523,6 +526,12 @@ static int rv1106_rtc_init(struct regmap *regmap) RV1106_RTC_D2A_CLK_OUT_EN); if (ret) return ret; + + ret = rockchip_rtc_update_bits(regmap, RV1106_RTC_XO_TRIM0, + RV1106_RTC_D2A_XO_START, + RV1106_RTC_D2A_XO_START); + if (ret) + return ret; return ret; }