diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0945-rtc-rv3028-Refresh-RAM-on-EEPROM-write.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0945-rtc-rv3028-Refresh-RAM-on-EEPROM-write.patch | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0945-rtc-rv3028-Refresh-RAM-on-EEPROM-write.patch b/target/linux/bcm27xx/patches-5.4/950-0945-rtc-rv3028-Refresh-RAM-on-EEPROM-write.patch deleted file mode 100644 index 94e3038c8a..0000000000 --- a/target/linux/bcm27xx/patches-5.4/950-0945-rtc-rv3028-Refresh-RAM-on-EEPROM-write.patch +++ /dev/null @@ -1,92 +0,0 @@ -From 010b506d6b215673f188ed5cdc4e35419e3ea715 Mon Sep 17 00:00:00 2001 -From: Einar Vading <einar.vading@rhimagnesita.com> -Date: Fri, 14 Aug 2020 22:14:41 +0200 -Subject: [PATCH] rtc: rv3028: Refresh RAM on EEPROM write - -The active RV3028 settings are in RAM so after modifying the settings in -EEPROM the RAM should be refreshed so that they take effect. - -Signed-off-by: Einar Vading <einar.vading@rhimagnesita.com> ---- - drivers/rtc/rtc-rv3028.c | 56 ++++++++++++++++++++++++++++++++++++++++ - 1 file changed, 56 insertions(+) - ---- a/drivers/rtc/rtc-rv3028.c -+++ b/drivers/rtc/rtc-rv3028.c -@@ -66,6 +66,7 @@ - - #define RV3028_EVT_CTRL_TSR BIT(2) - -+#define RV3028_EEPROM_CMD_REFRESH 0x12 - #define RV3028_EEPROM_CMD_WRITE 0x21 - #define RV3028_EEPROM_CMD_READ 0x22 - -@@ -583,6 +584,58 @@ restore_eerd: - return ret; - } - -+static int rv3028_ram_refresh(void *priv) -+{ -+ u32 status, ctrl1; -+ int ret, err; -+ -+ ret = regmap_read(priv, RV3028_CTRL1, &ctrl1); -+ if (ret) -+ return ret; -+ -+ if (!(ctrl1 & RV3028_CTRL1_EERD)) { -+ ret = regmap_update_bits(priv, RV3028_CTRL1, -+ RV3028_CTRL1_EERD, RV3028_CTRL1_EERD); -+ if (ret) -+ return ret; -+ -+ ret = regmap_read_poll_timeout(priv, RV3028_STATUS, status, -+ !(status & RV3028_STATUS_EEBUSY), -+ RV3028_EEBUSY_POLL, -+ RV3028_EEBUSY_TIMEOUT); -+ if (ret) -+ goto restore_eerd; -+ } -+ -+ ret = regmap_write(priv, RV3028_EEPROM_CMD, 0x0); -+ if (ret) -+ goto restore_eerd; -+ -+ ret = regmap_write(priv, RV3028_EEPROM_CMD, -+ RV3028_EEPROM_CMD_REFRESH); -+ if (ret) -+ goto restore_eerd; -+ -+ usleep_range(RV3028_EEBUSY_POLL, RV3028_EEBUSY_TIMEOUT); -+ -+ ret = regmap_read_poll_timeout(priv, RV3028_STATUS, status, -+ !(status & RV3028_STATUS_EEBUSY), -+ RV3028_EEBUSY_POLL, -+ RV3028_EEBUSY_TIMEOUT); -+ if (ret) -+ goto restore_eerd; -+ -+restore_eerd: -+ if (!(ctrl1 & RV3028_CTRL1_EERD)) { -+ err = regmap_update_bits(priv, RV3028_CTRL1, RV3028_CTRL1_EERD, -+ 0); -+ if (err && !ret) -+ ret = err; -+ } -+ -+ return ret; -+} -+ - static struct rtc_class_ops rv3028_rtc_ops = { - .read_time = rv3028_get_time, - .set_time = rv3028_set_time, -@@ -723,6 +776,9 @@ static int rv3028_probe(struct i2c_clien - ret = rv3028_eeprom_write( - (void *)(rv3028->regmap), - RV3028_BACKUP, (void *)&backup, 1); -+ -+ if (!ret) -+ ret = rv3028_ram_refresh((void *)(rv3028->regmap)); - } - } - |