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thermal: mediatek: extend calibration data for mt2712 chip

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This patch adds support for mt2712 chip thermal calibration data
and calculation, and is compatible with the existing chips.

Signed-off-by: Louis Yu <louis.yu@mediatek.com>
Reviewed-by: Dawei Chien <dawei.chien@mediatek.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This commit is contained in:
Louis Yu 2017-08-01 15:28:32 +08:00 committed by Zhang Rui
parent 6cf7f002e7
commit 0a06899334
1 changed files with 11 additions and 5 deletions
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16
drivers/thermal/mtk_thermal.c
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@ -112,10 +112,10 @@
/*
* Layout of the fuses providing the calibration data
* These macros could be used for both MT8173, MT2701, and MT2712.
* MT8173 has five sensors and need five VTS calibration data,
* and MT2701 has three sensors and need three VTS calibration data,
* and MT2712 has four sensors and need four VTS calibration data.
* These macros could be used for MT8173, MT2701, and MT2712.
* MT8173 has 5 sensors and needs 5 VTS calibration data.
* MT2701 has 3 sensors and needs 3 VTS calibration data.
* MT2712 has 4 sensors and needs 4 VTS calibration data.
*/
#define MT8173_CALIB_BUF0_VALID BIT(0)
#define MT8173_CALIB_BUF1_ADC_GE(x) (((x) >> 22) & 0x3ff)
@ -126,6 +126,8 @@
#define MT8173_CALIB_BUF2_VTS_TSABB(x) (((x) >> 14) & 0x1ff)
#define MT8173_CALIB_BUF0_DEGC_CALI(x) (((x) >> 1) & 0x3f)
#define MT8173_CALIB_BUF0_O_SLOPE(x) (((x) >> 26) & 0x3f)
#define MT8173_CALIB_BUF0_O_SLOPE_SIGN(x) (((x) >> 7) & 0x1)
#define MT8173_CALIB_BUF1_ID(x) (((x) >> 9) & 0x1)
/* MT2701 thermal sensors */
#define MT2701_TS1 0
@ -609,7 +611,11 @@ static int mtk_thermal_get_calibration_data(struct device *dev,
mt->vts[MT8173_TS4] = MT8173_CALIB_BUF2_VTS_TS4(buf[2]);
mt->vts[MT8173_TSABB] = MT8173_CALIB_BUF2_VTS_TSABB(buf[2]);
mt->degc_cali = MT8173_CALIB_BUF0_DEGC_CALI(buf[0]);
mt->o_slope = MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
if (MT8173_CALIB_BUF1_ID(buf[1]) &
MT8173_CALIB_BUF0_O_SLOPE_SIGN(buf[0]))
mt->o_slope = -MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
else
mt->o_slope = MT8173_CALIB_BUF0_O_SLOPE(buf[0]);
} else {
dev_info(dev, "Device not calibrated, using default calibration values\n");
}