diff options
| author | Caesar Wang <wxt@rock-chips.com> | 2016-06-22 18:13:56 +0800 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2016-09-27 14:02:16 +0800 |
| commit | 466678790650a9dff6f107ca09a2f5e6480799e9 (patch) | |
| tree | e7d233be963d44ff7f37f26e6056c89327eafbf5 /drivers/thermal/rockchip_thermal.c | |
| parent | 148485023f2bff19732366789f2badb1cc3ac95b (diff) | |
| download | linux-466678790650a9dff6f107ca09a2f5e6480799e9.tar.bz2 | |
thermal: rockchip: fixes the period time for tsadc
We should increase the period cycles to save power since the rk3399 has
the high frequency for tsadc clock.
Fixes commit b0d70338bca22cb14
("thermal: rockchip: Support the RK3399 SoCs in thermal driver")
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal/rockchip_thermal.c')
| -rw-r--r-- | drivers/thermal/rockchip_thermal.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c index 8175cdb2f362..2d5ba97ade08 100644 --- a/drivers/thermal/rockchip_thermal.c +++ b/drivers/thermal/rockchip_thermal.c @@ -211,8 +211,11 @@ struct rockchip_thermal_data { #define TSADCV2_HIGHT_INT_DEBOUNCE_COUNT 4 #define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT 4 -#define TSADCV2_AUTO_PERIOD_TIME 250 /* msec */ -#define TSADCV2_AUTO_PERIOD_HT_TIME 50 /* msec */ +#define TSADCV2_AUTO_PERIOD_TIME 250 /* 250ms */ +#define TSADCV2_AUTO_PERIOD_HT_TIME 50 /* 50ms */ +#define TSADCV3_AUTO_PERIOD_TIME 187500 /* 250ms */ +#define TSADCV3_AUTO_PERIOD_HT_TIME 37500 /* 50ms */ + #define TSADCV2_USER_INTER_PD_SOC 0x340 /* 13 clocks */ #define GRF_SARADC_TESTBIT 0x0e644 @@ -547,6 +550,16 @@ static void rk_tsadcv3_initialize(struct regmap *grf, void __iomem *regs, /* Set interleave value to workround ic time sync issue */ writel_relaxed(TSADCV2_USER_INTER_PD_SOC, regs + TSADCV2_USER_CON); + + writel_relaxed(TSADCV2_AUTO_PERIOD_TIME, + regs + TSADCV2_AUTO_PERIOD); + writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT, + regs + TSADCV2_HIGHT_INT_DEBOUNCE); + writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME, + regs + TSADCV2_AUTO_PERIOD_HT); + writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT, + regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE); + } else { regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_TSEN_PD_ON); mdelay(10); @@ -555,6 +568,15 @@ static void rk_tsadcv3_initialize(struct regmap *grf, void __iomem *regs, regmap_write(grf, GRF_SARADC_TESTBIT, GRF_SARADC_TESTBIT_ON); regmap_write(grf, GRF_TSADC_TESTBIT_H, GRF_TSADC_TESTBIT_H_ON); usleep_range(90, 200); /* The spec note says at least 90 us */ + + writel_relaxed(TSADCV3_AUTO_PERIOD_TIME, + regs + TSADCV2_AUTO_PERIOD); + writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT, + regs + TSADCV2_HIGHT_INT_DEBOUNCE); + writel_relaxed(TSADCV3_AUTO_PERIOD_HT_TIME, + regs + TSADCV2_AUTO_PERIOD_HT); + writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT, + regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE); } if (tshut_polarity == TSHUT_HIGH_ACTIVE) @@ -563,14 +585,6 @@ static void rk_tsadcv3_initialize(struct regmap *grf, void __iomem *regs, else writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH, regs + TSADCV2_AUTO_CON); - - writel_relaxed(TSADCV2_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD); - writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT, - regs + TSADCV2_HIGHT_INT_DEBOUNCE); - writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME, - regs + TSADCV2_AUTO_PERIOD_HT); - writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT, - regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE); } static void rk_tsadcv2_irq_ack(void __iomem *regs) |