diff options
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-.patch | 63 |
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 + |