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Diffstat (limited to 'target/linux/mediatek/patches-4.4/0029-soc-mediatek-PMIC-wrap-clear-the-STAUPD_TRIG-bit-of-.patch')
-rw-r--r--target/linux/mediatek/patches-4.4/0029-soc-mediatek-PMIC-wrap-clear-the-STAUPD_TRIG-bit-of-.patch63
1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.4/0029-soc-mediatek-PMIC-wrap-clear-the-STAUPD_TRIG-bit-of-.patch b/target/linux/mediatek/patches-4.4/0029-soc-mediatek-PMIC-wrap-clear-the-STAUPD_TRIG-bit-of-.patch
new file mode 100644
index 0000000000..f8a1cd151c
--- /dev/null
+++ b/target/linux/mediatek/patches-4.4/0029-soc-mediatek-PMIC-wrap-clear-the-STAUPD_TRIG-bit-of-.patch
@@ -0,0 +1,63 @@
+From 5d75662fcdfef08d82710f8c4b71c58d618d4171 Mon Sep 17 00:00:00 2001
+From: Henry Chen <henryc.chen@mediatek.com>
+Date: Thu, 21 Jan 2016 19:04:00 +0800
+Subject: [PATCH 29/53] 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>
+---
+ drivers/soc/mediatek/mtk-pmic-wrap.c | 19 +++++++++++++++++--
+ 1 file changed, 17 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
+index 696071b..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);
+
+--
+1.7.10.4
+