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RPI kernel 4.19 support

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Ycarus 2019-04-22 17:10:09 +02:00
parent e79d4c1771
commit e253715ce5
432 changed files with 335303 additions and 0 deletions
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55
root/target/linux/brcm2708/patches-4.19/0429-rtc-rv3028-Add-backup-switchover-mode-support.patch Normal file
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@ -0,0 +1,55 @@
From 8c45fc7b8a971db912e3a7e4e8131ec91dd61302 Mon Sep 17 00:00:00 2001
From: Phil Howard <phil@gadgetoid.com>
Date: Fri, 29 Mar 2019 10:53:14 +0000
Subject: [PATCH 429/432] 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(+)
diff --git a/drivers/rtc/rtc-rv3028.c b/drivers/rtc/rtc-rv3028.c
index d04c2d481655..b69d8e6408aa 100644
--- a/drivers/rtc/rtc-rv3028.c
+++ b/drivers/rtc/rtc-rv3028.c
@@ -74,6 +74,7 @@
#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
@@ -601,6 +602,7 @@ static int rv3028_probe(struct i2c_client *client)
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_client *client)
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)) {
--
2.19.1