msm: kgsl: change ISENSE calibration handshake order
Force ISENSE calibration to stop before starting new calibration. CRs-Fixed: 973565 Change-Id: I86dcbaa7feaecd630a027c5aca41d62a5855efda Signed-off-by: Oleg Perelet <operelet@codeaurora.org>
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3 changed files with 13 additions and 3 deletions
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@ -907,5 +907,6 @@
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#define A5XX_GPU_CS_AMP_CALIBRATION_STATUS1_4 0xC421
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#define A5XX_GPU_CS_ENABLE_REG 0xC520
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#define A5XX_GPU_CS_AMP_CALIBRATION_CONTROL1 0xC557
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#define A5XX_GPU_CS_AMP_CALIBRATION_DONE 0xC565
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#endif /* _A5XX_REG_H */
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@ -1665,9 +1665,12 @@ static int isense_cot(struct adreno_device *adreno_dev)
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unsigned int r, ret;
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struct kgsl_device *device = KGSL_DEVICE(adreno_dev);
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kgsl_regwrite(device, A5XX_GPU_CS_AMP_CALIBRATION_CONTROL1,
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AMP_SW_TRIM_START);
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kgsl_regrmw(device, A5XX_GPU_CS_AMP_CALIBRATION_DONE,
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SW_OPAMP_CAL_DONE, 0);
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kgsl_regrmw(device, A5XX_GPU_CS_AMP_CALIBRATION_CONTROL1,
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AMP_SW_TRIM_START, 0);
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kgsl_regrmw(device, A5XX_GPU_CS_AMP_CALIBRATION_CONTROL1,
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AMP_SW_TRIM_START, AMP_SW_TRIM_START);
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for (ret = 0; ret < AMP_CALIBRATION_TIMEOUT; ret++) {
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kgsl_regread(device, A5XX_GPU_CS_SENSOR_GENERAL_STATUS, &r);
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@ -1694,6 +1697,9 @@ static int isense_cot(struct adreno_device *adreno_dev)
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if (r & AMP_CALIBRATION_ERR)
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return -EIO;
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kgsl_regrmw(device, A5XX_GPU_CS_AMP_CALIBRATION_DONE,
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SW_OPAMP_CAL_DONE, 1);
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return 0;
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}
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@ -123,6 +123,9 @@ void a5xx_hwcg_set(struct adreno_device *adreno_dev, bool on);
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#define AMP_OFFSET_CHECK_MAX_ERR BIT(2)
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#define AMP_OFFSET_CHECK_MIN_ERR BIT(1)
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/* A5XX_GPU_CS_AMP_CALIBRATION_DONE */
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#define SW_OPAMP_CAL_DONE BIT(0)
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#define AMP_CALIBRATION_ERR (AMP_OFFSET_CHECK_MIN_ERR | \
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AMP_OFFSET_CHECK_MAX_ERR | AMP_OUT_OF_RANGE_ERR)
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