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>

diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
index 8175cdb..2d5ba97 100644 (file)
--- 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)