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>

1 files changed, 17 insertions, 2 deletions

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 696071b66c41..0d9b19a78d27 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -60,6 +60,15 @@
 #define PWRAP_MAN_CMD_OP_OUTD           (0x9 << 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 */
 #define PWRAP_DEW_BASE                  0xbc00
 #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)
 {
-        int ret, irq;
+        int ret, irq, wdt_src;
         struct pmic_wrapper *wrp;
         struct device_node *np = pdev->dev.of_node;
         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 */
         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, ~((1 << 31) | (1 << 1)), PWRAP_INT_EN);