diff options
Diffstat (limited to 'target/linux/mediatek/patches/0040-clocksource-mediatek-Use-GPT-as-sched-clock-source.patch')
-rw-r--r-- | target/linux/mediatek/patches/0040-clocksource-mediatek-Use-GPT-as-sched-clock-source.patch | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/target/linux/mediatek/patches/0040-clocksource-mediatek-Use-GPT-as-sched-clock-source.patch b/target/linux/mediatek/patches/0040-clocksource-mediatek-Use-GPT-as-sched-clock-source.patch deleted file mode 100644 index 4de1d75c89..0000000000 --- a/target/linux/mediatek/patches/0040-clocksource-mediatek-Use-GPT-as-sched-clock-source.patch +++ /dev/null @@ -1,46 +0,0 @@ -From 3b3c2406dd9797bc806e0ce756142a33d209c4e8 Mon Sep 17 00:00:00 2001 -From: "Joe.C" <yingjoe.chen@mediatek.com> -Date: Fri, 1 May 2015 15:43:25 +0800 -Subject: [PATCH 40/76] clocksource: mediatek: Use GPT as sched clock source - -When cpu is in deep idle, arch timer will stop counting. Setup GPT as -sched clock source so it can keep counting in idle. - -Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com> ---- - drivers/clocksource/mtk_timer.c | 10 ++++++++++ - 1 file changed, 10 insertions(+) - ---- a/drivers/clocksource/mtk_timer.c -+++ b/drivers/clocksource/mtk_timer.c -@@ -24,6 +24,7 @@ - #include <linux/of.h> - #include <linux/of_address.h> - #include <linux/of_irq.h> -+#include <linux/sched_clock.h> - #include <linux/slab.h> - - #define GPT_IRQ_EN_REG 0x00 -@@ -59,6 +60,13 @@ struct mtk_clock_event_device { - struct clock_event_device dev; - }; - -+static void __iomem *gpt_base __read_mostly; -+ -+static u64 notrace mtk_read_sched_clock(void) -+{ -+ return readl_relaxed(gpt_base + TIMER_CNT_REG(GPT_CLK_SRC)); -+} -+ - static inline struct mtk_clock_event_device *to_mtk_clk( - struct clock_event_device *c) - { -@@ -239,6 +247,8 @@ static void __init mtk_timer_init(struct - mtk_timer_setup(evt, GPT_CLK_SRC, TIMER_CTRL_OP_FREERUN); - clocksource_mmio_init(evt->gpt_base + TIMER_CNT_REG(GPT_CLK_SRC), - node->name, rate, 300, 32, clocksource_mmio_readl_up); -+ gpt_base = evt->gpt_base; -+ sched_clock_register(mtk_read_sched_clock, 32, rate); - - /* Configure clock event */ - mtk_timer_setup(evt, GPT_CLK_EVT, TIMER_CTRL_OP_REPEAT); |