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soc: mediatek: PMIC wrap: clear the STAUPD_TRIG bit of WDT_SRC_EN 

Since STAUPD interrupts aren't handled on mt8173, disable watchdog timeout
monitor of STAUPD to avoid WDT_INT triggered by STAUPD.

Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Henry Chen 2016-01-21 19:04:00 +08:00 committed by Matthias Brugger
parent fd63892fcf
commit a3bbfbb0bc
1 changed files with 17 additions and 2 deletions
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19
drivers/soc/mediatek/mtk-pmic-wrap.c
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@ -60,6 +60,15 @@
#define PWRAP_MAN_CMD_OP_OUTD (0x9 << 8) #define PWRAP_MAN_CMD_OP_OUTD (0x9 << 8)
#define PWRAP_MAN_CMD_OP_OUTQ (0xa << 8) #define PWRAP_MAN_CMD_OP_OUTQ (0xa << 8)
/* macro for Watch Dog Timer Source */
#define PWRAP_WDT_SRC_EN_STAUPD_TRIG (1 << 25)
#define PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE (1 << 20)
#define PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE (1 << 6)
#define PWRAP_WDT_SRC_MASK_ALL 0xffffffff
#define PWRAP_WDT_SRC_MASK_NO_STAUPD ~(PWRAP_WDT_SRC_EN_STAUPD_TRIG | \
PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE | \
PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE)
/* macro for slave device wrapper registers */ /* macro for slave device wrapper registers */
#define PWRAP_DEW_BASE 0xbc00 #define PWRAP_DEW_BASE 0xbc00
#define PWRAP_DEW_EVENT_OUT_EN (PWRAP_DEW_BASE + 0x0) #define PWRAP_DEW_EVENT_OUT_EN (PWRAP_DEW_BASE + 0x0)
@ -822,7 +831,7 @@ MODULE_DEVICE_TABLE(of, of_pwrap_match_tbl);
static int pwrap_probe(struct platform_device *pdev) static int pwrap_probe(struct platform_device *pdev)
{ {
int ret, irq; int ret, irq, wdt_src;
struct pmic_wrapper *wrp; struct pmic_wrapper *wrp;
struct device_node *np = pdev->dev.of_node; struct device_node *np = pdev->dev.of_node;
const struct of_device_id *of_id = const struct of_device_id *of_id =
@ -912,7 +921,13 @@ static int pwrap_probe(struct platform_device *pdev)
/* Initialize watchdog, may not be done by the bootloader */ /* Initialize watchdog, may not be done by the bootloader */
pwrap_writel(wrp, 0xf, PWRAP_WDT_UNIT); pwrap_writel(wrp, 0xf, PWRAP_WDT_UNIT);
pwrap_writel(wrp, 0xffffffff, PWRAP_WDT_SRC_EN); /*
* Since STAUPD was not used on mt8173 platform,
* so STAUPD of WDT_SRC which should be turned off
*/
wdt_src = pwrap_is_mt8173(wrp) ?
PWRAP_WDT_SRC_MASK_NO_STAUPD : PWRAP_WDT_SRC_MASK_ALL;
pwrap_writel(wrp, wdt_src, PWRAP_WDT_SRC_EN);
pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN); pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN);
pwrap_writel(wrp, ~((1 << 31) | (1 << 1)), PWRAP_INT_EN); pwrap_writel(wrp, ~((1 << 31) | (1 << 1)), PWRAP_INT_EN);