diff options
| -rw-r--r-- | drivers/spi/spi-sprd-adi.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c index 509ce6943adc..0d767eb67fcf 100644 --- a/drivers/spi/spi-sprd-adi.c +++ b/drivers/spi/spi-sprd-adi.c @@ -99,6 +99,7 @@ #define HWRST_STATUS_IQMODE 0xb0 #define HWRST_STATUS_SPRDISK 0xc0 #define HWRST_STATUS_FACTORYTEST 0xe0 +#define HWRST_STATUS_WATCHDOG 0xf0 /* Use default timeout 50 ms that converts to watchdog values */ #define WDG_LOAD_VAL ((50 * 1000) / 32768) @@ -309,6 +310,18 @@ static int sprd_adi_transfer_one(struct spi_controller *ctlr, return 0; } +static void sprd_adi_set_wdt_rst_mode(struct sprd_adi *sadi) +{ +#ifdef CONFIG_SPRD_WATCHDOG + u32 val; + + /* Set default watchdog reboot mode */ + sprd_adi_read(sadi, sadi->slave_pbase + PMIC_RST_STATUS, &val); + val |= HWRST_STATUS_WATCHDOG; + sprd_adi_write(sadi, sadi->slave_pbase + PMIC_RST_STATUS, val); +#endif +} + static int sprd_adi_restart_handler(struct notifier_block *this, unsigned long mode, void *cmd) { @@ -347,6 +360,7 @@ static int sprd_adi_restart_handler(struct notifier_block *this, /* Record the reboot mode */ sprd_adi_read(sadi, sadi->slave_pbase + PMIC_RST_STATUS, &val); + val &= ~HWRST_STATUS_WATCHDOG; val |= reboot_mode; sprd_adi_write(sadi, sadi->slave_pbase + PMIC_RST_STATUS, val); @@ -475,6 +489,7 @@ static int sprd_adi_probe(struct platform_device *pdev) } sprd_adi_hw_init(sadi); + sprd_adi_set_wdt_rst_mode(sadi); ctlr->dev.of_node = pdev->dev.of_node; ctlr->bus_num = pdev->id; |