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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-18 18:04:33 +0100 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2021-02-18 23:42:32 +0100 |
| commit | f07e572f6447465d8938679533d604e402b0f066 (patch) | |
| tree | cb333bd2a67e59e7c07659514850a0fd55fc825e /target/linux/bcm27xx/patches-5.4/950-0143-rtc-rv3028-Add-backup-switchover-mode-support.patch | |
| parent | 5d3a6fd970619dfc55f8259035c3027d7613a2a6 (diff) | |
| download | upstream-f07e572f6447465d8938679533d604e402b0f066.tar.gz upstream-f07e572f6447465d8938679533d604e402b0f066.tar.bz2 upstream-f07e572f6447465d8938679533d604e402b0f066.zip | |
bcm27xx: import latest patches from the RPi foundation
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0143-rtc-rv3028-Add-backup-switchover-mode-support.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0143-rtc-rv3028-Add-backup-switchover-mode-support.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0143-rtc-rv3028-Add-backup-switchover-mode-support.patch b/target/linux/bcm27xx/patches-5.4/950-0143-rtc-rv3028-Add-backup-switchover-mode-support.patch new file mode 100644 index 0000000000..375bd6e6b7 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0143-rtc-rv3028-Add-backup-switchover-mode-support.patch @@ -0,0 +1,50 @@ +From c91a8597734d13ebb5ac7393fa6f100d70f15664 Mon Sep 17 00:00:00 2001 +From: Phil Howard <phil@gadgetoid.com> +Date: Fri, 29 Mar 2019 10:53:14 +0000 +Subject: [PATCH] rtc: rv3028: Add backup switchover mode support + +Signed-off-by: Phil Howard <phil@pimoroni.com> +--- + drivers/rtc/rtc-rv3028.c | 17 +++++++++++++++++ + 1 file changed, 17 insertions(+) + +--- a/drivers/rtc/rtc-rv3028.c ++++ b/drivers/rtc/rtc-rv3028.c +@@ -73,6 +73,7 @@ + + #define RV3028_BACKUP_TCE BIT(5) + #define RV3028_BACKUP_TCR_MASK GENMASK(1,0) ++#define RV3028_BACKUP_BSM_MASK 0x0C + + #define OFFSET_STEP_PPT 953674 + +@@ -600,6 +601,7 @@ static int rv3028_probe(struct i2c_clien + struct rv3028_data *rv3028; + int ret, status; + u32 ohms; ++ u8 bsm; + struct nvmem_config nvmem_cfg = { + .name = "rv3028_nvram", + .word_size = 1, +@@ -671,6 +673,21 @@ static int rv3028_probe(struct i2c_clien + if (ret) + return ret; + ++ /* setup backup switchover mode */ ++ if (!device_property_read_u8(&client->dev, "backup-switchover-mode", ++ &bsm)) { ++ if (bsm <= 3) { ++ ret = regmap_update_bits(rv3028->regmap, RV3028_BACKUP, ++ RV3028_BACKUP_BSM_MASK, ++ (bsm & 0x03) << 2); ++ ++ if (ret) ++ return ret; ++ } else { ++ dev_warn(&client->dev, "invalid backup switchover mode value\n"); ++ } ++ } ++ + /* setup trickle charger */ + if (!device_property_read_u32(&client->dev, "trickle-resistor-ohms", + &ohms)) { |