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authorHenry Chen <henryc.chen@mediatek.com>2016-01-21 19:04:00 +0800
committerMatthias Brugger <matthias.bgg@gmail.com>2016-01-25 18:59:41 +0100
commita3bbfbb0bc6bd40406ef2aea940719312600813e (patch)
tree05ca7b82c3443698959185ac8c769305ef530cc9 /drivers/soc
parentfd63892fcf28d839694d50d7d355ca0cbde401a1 (diff)
downloadop-kernel-dev-a3bbfbb0bc6bd40406ef2aea940719312600813e.zip
op-kernel-dev-a3bbfbb0bc6bd40406ef2aea940719312600813e.tar.gz
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>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/mediatek/mtk-pmic-wrap.c19
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 696071b6..0d9b19a 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);
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