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59 lines
2.2 KiB
Diff
59 lines
2.2 KiB
Diff
From b92861fbc79b3a7a9bc1c51e2dbfa2c191cc27ea Mon Sep 17 00:00:00 2001
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From: Henry Chen <henryc.chen@mediatek.com>
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Date: Thu, 21 Jan 2016 19:04:00 +0800
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Subject: [PATCH 029/102] soc: mediatek: PMIC wrap: clear the STAUPD_TRIG bit
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of WDT_SRC_EN
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Since STAUPD interrupts aren't handled on mt8173, disable watchdog timeout
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monitor of STAUPD to avoid WDT_INT triggered by STAUPD.
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Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
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Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
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Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
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---
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drivers/soc/mediatek/mtk-pmic-wrap.c | 19 +++++++++++++++++--
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1 file changed, 17 insertions(+), 2 deletions(-)
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--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
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+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
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@@ -60,6 +60,15 @@
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#define PWRAP_MAN_CMD_OP_OUTD (0x9 << 8)
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#define PWRAP_MAN_CMD_OP_OUTQ (0xa << 8)
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+/* macro for Watch Dog Timer Source */
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+#define PWRAP_WDT_SRC_EN_STAUPD_TRIG (1 << 25)
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+#define PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE (1 << 20)
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+#define PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE (1 << 6)
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+#define PWRAP_WDT_SRC_MASK_ALL 0xffffffff
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+#define PWRAP_WDT_SRC_MASK_NO_STAUPD ~(PWRAP_WDT_SRC_EN_STAUPD_TRIG | \
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+ PWRAP_WDT_SRC_EN_HARB_STAUPD_DLE | \
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+ PWRAP_WDT_SRC_EN_HARB_STAUPD_ALE)
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+
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/* macro for slave device wrapper registers */
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#define PWRAP_DEW_BASE 0xbc00
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#define PWRAP_DEW_EVENT_OUT_EN (PWRAP_DEW_BASE + 0x0)
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@@ -822,7 +831,7 @@ MODULE_DEVICE_TABLE(of, of_pwrap_match_t
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static int pwrap_probe(struct platform_device *pdev)
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{
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- int ret, irq;
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+ int ret, irq, wdt_src;
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struct pmic_wrapper *wrp;
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struct device_node *np = pdev->dev.of_node;
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const struct of_device_id *of_id =
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@@ -912,7 +921,13 @@ static int pwrap_probe(struct platform_d
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/* Initialize watchdog, may not be done by the bootloader */
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pwrap_writel(wrp, 0xf, PWRAP_WDT_UNIT);
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- pwrap_writel(wrp, 0xffffffff, PWRAP_WDT_SRC_EN);
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+ /*
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+ * Since STAUPD was not used on mt8173 platform,
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+ * so STAUPD of WDT_SRC which should be turned off
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+ */
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+ wdt_src = pwrap_is_mt8173(wrp) ?
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+ PWRAP_WDT_SRC_MASK_NO_STAUPD : PWRAP_WDT_SRC_MASK_ALL;
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+ pwrap_writel(wrp, wdt_src, PWRAP_WDT_SRC_EN);
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pwrap_writel(wrp, 0x1, PWRAP_TIMER_EN);
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pwrap_writel(wrp, ~((1 << 31) | (1 << 1)), PWRAP_INT_EN);
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