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thermal: rockchip: add the interleave value setting

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The interleave is between power down and start of conversion,
This patch adds to workaround ic time sync issue for control.

Change-Id: Ib9f28fd92bcecf8ddaa8a69d47ced87fef04e7c6
Signed-off-by: Rocky Hao <rocky.hao@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
This commit is contained in:
Rocky Hao
2016-04-10 14:55:07 +08:00
committed by Huang, Tao
parent b4822ded3d
commit 99dd27d23b
1 changed files with 15 additions and 12 deletions
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27
drivers/thermal/rockchip_thermal.c
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@@ -146,6 +146,7 @@ struct rockchip_thermal_data {
* TSADCV3_* are used for newer SoCs than RK3288. (e.g: RK3228, RK3399)
*
*/
#define TSADCV2_USER_CON 0x00
#define TSADCV2_AUTO_CON 0x04
#define TSADCV2_INT_EN 0x08
#define TSADCV2_INT_PD 0x0c
@@ -181,6 +182,7 @@ struct rockchip_thermal_data {
#define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT 4
#define TSADCV2_AUTO_PERIOD_TIME 250 /* msec */
#define TSADCV2_AUTO_PERIOD_HT_TIME 50 /* msec */
#define TSADCV2_USER_INTER_PD_SOC 0x340 /* 13 clocks */
#define GRF_SARADC_TESTBIT 0x0e644
#define GRF_TSADC_TESTBIT_L 0x0e648
@@ -505,19 +507,20 @@ static void rk_tsadcv2_initialize(struct regmap *grf, void __iomem *regs,
static void rk_tsadcv3_initialize(struct regmap *grf, void __iomem *regs,
enum tshut_polarity tshut_polarity)
{
if (IS_ERR(grf)) {
pr_warn("%s: Missing rockchip,grf property\n", __func__);
return;
}
/* The tsadc control power sequence */
regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_TSEN_PD_ON);
mdelay(10);
regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_TSEN_PD_OFF);
udelay(100); /* The spec note says at least 15 us */
regmap_write(grf, GRF_SARADC_TESTBIT, GRF_SARADC_TESTBIT_ON);
regmap_write(grf, GRF_TSADC_TESTBIT_H, GRF_TSADC_TESTBIT_H_ON);
udelay(200); /* The spec note says at least 90 us */
if (IS_ERR(grf)) {
/* Set interleave value to workround ic time sync issue */
writel_relaxed(TSADCV2_USER_INTER_PD_SOC, regs +
TSADCV2_USER_CON);
} else {
regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_TSEN_PD_ON);
mdelay(10);
regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_TSEN_PD_OFF);
udelay(100); /* The spec note says at least 15 us */
regmap_write(grf, GRF_SARADC_TESTBIT, GRF_SARADC_TESTBIT_ON);
regmap_write(grf, GRF_TSADC_TESTBIT_H, GRF_TSADC_TESTBIT_H_ON);
udelay(200); /* The spec note says at least 90 us */
}
if (tshut_polarity == TSHUT_HIGH_ACTIVE)
writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH,