On Tue, Jun 30, 2020 at 1:09 AM Shawn Guo <shawn.guo@xxxxxxxxxx> wrote:
>
> The TSENS integrated on MSM8939 is a v0_1 device with 10 sensors.
> Different from its predecessor MSM8916, where 'calib_sel' bits sit in
> separate qfprom word, MSM8939 has 'cailb' and 'calib_sel' bits mixed and
> spread on discrete offsets. That's why all qfprom bits are read as one
> go and later mapped to calibration data for MSM8939.
>
> Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
Acked-by: Amit Kucheria <amit.kucheria@xxxxxxxxxx>
> ---
> drivers/thermal/qcom/tsens-v0_1.c | 144 +++++++++++++++++++++++++++++-
> drivers/thermal/qcom/tsens.c | 3 +
> drivers/thermal/qcom/tsens.h | 2 +-
> 3 files changed, 147 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/thermal/qcom/tsens-v0_1.c b/drivers/thermal/qcom/tsens-v0_1.c
> index 959a9371d205..e64db5f80d90 100644
> --- a/drivers/thermal/qcom/tsens-v0_1.c
> +++ b/drivers/thermal/qcom/tsens-v0_1.c
> @@ -48,6 +48,63 @@
> #define MSM8916_CAL_SEL_MASK 0xe0000000
> #define MSM8916_CAL_SEL_SHIFT 29
>
> +/* eeprom layout data for 8939 */
> +#define MSM8939_BASE0_MASK 0x000000ff
> +#define MSM8939_BASE1_MASK 0xff000000
> +#define MSM8939_BASE0_SHIFT 0
> +#define MSM8939_BASE1_SHIFT 24
> +
> +#define MSM8939_S0_P1_MASK 0x000001f8
> +#define MSM8939_S1_P1_MASK 0x001f8000
> +#define MSM8939_S2_P1_MASK_0_4 0xf8000000
> +#define MSM8939_S2_P1_MASK_5 0x00000001
> +#define MSM8939_S3_P1_MASK 0x00001f80
> +#define MSM8939_S4_P1_MASK 0x01f80000
> +#define MSM8939_S5_P1_MASK 0x00003f00
> +#define MSM8939_S6_P1_MASK 0x03f00000
> +#define MSM8939_S7_P1_MASK 0x0000003f
> +#define MSM8939_S8_P1_MASK 0x0003f000
> +#define MSM8939_S9_P1_MASK 0x07e00000
> +
> +#define MSM8939_S0_P2_MASK 0x00007e00
> +#define MSM8939_S1_P2_MASK 0x07e00000
> +#define MSM8939_S2_P2_MASK 0x0000007e
> +#define MSM8939_S3_P2_MASK 0x0007e000
> +#define MSM8939_S4_P2_MASK 0x7e000000
> +#define MSM8939_S5_P2_MASK 0x000fc000
> +#define MSM8939_S6_P2_MASK 0xfc000000
> +#define MSM8939_S7_P2_MASK 0x00000fc0
> +#define MSM8939_S8_P2_MASK 0x00fc0000
> +#define MSM8939_S9_P2_MASK_0_4 0xf8000000
> +#define MSM8939_S9_P2_MASK_5 0x00002000
> +
> +#define MSM8939_S0_P1_SHIFT 3
> +#define MSM8939_S1_P1_SHIFT 15
> +#define MSM8939_S2_P1_SHIFT_0_4 27
> +#define MSM8939_S2_P1_SHIFT_5 0
> +#define MSM8939_S3_P1_SHIFT 7
> +#define MSM8939_S4_P1_SHIFT 19
> +#define MSM8939_S5_P1_SHIFT 8
> +#define MSM8939_S6_P1_SHIFT 20
> +#define MSM8939_S7_P1_SHIFT 0
> +#define MSM8939_S8_P1_SHIFT 12
> +#define MSM8939_S9_P1_SHIFT 21
> +
> +#define MSM8939_S0_P2_SHIFT 9
> +#define MSM8939_S1_P2_SHIFT 21
> +#define MSM8939_S2_P2_SHIFT 1
> +#define MSM8939_S3_P2_SHIFT 13
> +#define MSM8939_S4_P2_SHIFT 25
> +#define MSM8939_S5_P2_SHIFT 14
> +#define MSM8939_S6_P2_SHIFT 26
> +#define MSM8939_S7_P2_SHIFT 6
> +#define MSM8939_S8_P2_SHIFT 18
> +#define MSM8939_S9_P2_SHIFT_0_4 27
> +#define MSM8939_S9_P2_SHIFT_5 13
> +
> +#define MSM8939_CAL_SEL_MASK 0x7
> +#define MSM8939_CAL_SEL_SHIFT 0
> +
> /* eeprom layout data for 8974 */
> #define BASE1_MASK 0xff
> #define S0_P1_MASK 0x3f00
> @@ -189,6 +246,76 @@ static int calibrate_8916(struct tsens_priv *priv)
> return 0;
> }
>
> +static int calibrate_8939(struct tsens_priv *priv)
> +{
> + int base0 = 0, base1 = 0, i;
> + u32 p1[10], p2[10];
> + int mode = 0;
> + u32 *qfprom_cdata;
> + u32 cdata[6];
> +
> + qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
> + if (IS_ERR(qfprom_cdata))
> + return PTR_ERR(qfprom_cdata);
> +
> + /* Mapping between qfprom nvmem and calibration data */
> + cdata[0] = qfprom_cdata[12];
> + cdata[1] = qfprom_cdata[13];
> + cdata[2] = qfprom_cdata[0];
> + cdata[3] = qfprom_cdata[1];
> + cdata[4] = qfprom_cdata[22];
> + cdata[5] = qfprom_cdata[21];
> +
> + mode = (cdata[0] & MSM8939_CAL_SEL_MASK) >> MSM8939_CAL_SEL_SHIFT;
> + dev_dbg(priv->dev, "calibration mode is %d\n", mode);
> +
> + switch (mode) {
> + case TWO_PT_CALIB:
> + base1 = (cdata[3] & MSM8939_BASE1_MASK) >> MSM8939_BASE1_SHIFT;
> + p2[0] = (cdata[0] & MSM8939_S0_P2_MASK) >> MSM8939_S0_P2_SHIFT;
> + p2[1] = (cdata[0] & MSM8939_S1_P2_MASK) >> MSM8939_S1_P2_SHIFT;
> + p2[2] = (cdata[1] & MSM8939_S2_P2_MASK) >> MSM8939_S2_P2_SHIFT;
> + p2[3] = (cdata[1] & MSM8939_S3_P2_MASK) >> MSM8939_S3_P2_SHIFT;
> + p2[4] = (cdata[1] & MSM8939_S4_P2_MASK) >> MSM8939_S4_P2_SHIFT;
> + p2[5] = (cdata[2] & MSM8939_S5_P2_MASK) >> MSM8939_S5_P2_SHIFT;
> + p2[6] = (cdata[2] & MSM8939_S6_P2_MASK) >> MSM8939_S6_P2_SHIFT;
> + p2[7] = (cdata[3] & MSM8939_S7_P2_MASK) >> MSM8939_S7_P2_SHIFT;
> + p2[8] = (cdata[3] & MSM8939_S8_P2_MASK) >> MSM8939_S8_P2_SHIFT;
> + p2[9] = (cdata[4] & MSM8939_S9_P2_MASK_0_4) >> MSM8939_S9_P2_SHIFT_0_4;
> + p2[9] |= ((cdata[5] & MSM8939_S9_P2_MASK_5) >> MSM8939_S9_P2_SHIFT_5) << 5;
> + for (i = 0; i < priv->num_sensors; i++)
> + p2[i] = (base1 + p2[i]) << 2;
> + fallthrough;
> + case ONE_PT_CALIB2:
> + base0 = (cdata[2] & MSM8939_BASE0_MASK) >> MSM8939_BASE0_SHIFT;
> + p1[0] = (cdata[0] & MSM8939_S0_P1_MASK) >> MSM8939_S0_P1_SHIFT;
> + p1[1] = (cdata[0] & MSM8939_S1_P1_MASK) >> MSM8939_S1_P1_SHIFT;
> + p1[2] = (cdata[0] & MSM8939_S2_P1_MASK_0_4) >> MSM8939_S2_P1_SHIFT_0_4;
> + p1[2] |= ((cdata[1] & MSM8939_S2_P1_MASK_5) >> MSM8939_S2_P1_SHIFT_5) << 5;
> + p1[3] = (cdata[1] & MSM8939_S3_P1_MASK) >> MSM8939_S3_P1_SHIFT;
> + p1[4] = (cdata[1] & MSM8939_S4_P1_MASK) >> MSM8939_S4_P1_SHIFT;
> + p1[5] = (cdata[2] & MSM8939_S5_P1_MASK) >> MSM8939_S5_P1_SHIFT;
> + p1[6] = (cdata[2] & MSM8939_S6_P1_MASK) >> MSM8939_S6_P1_SHIFT;
> + p1[7] = (cdata[3] & MSM8939_S7_P1_MASK) >> MSM8939_S7_P1_SHIFT;
> + p1[8] = (cdata[3] & MSM8939_S8_P1_MASK) >> MSM8939_S8_P1_SHIFT;
> + p1[9] = (cdata[4] & MSM8939_S9_P1_MASK) >> MSM8939_S9_P1_SHIFT;
> + for (i = 0; i < priv->num_sensors; i++)
> + p1[i] = ((base0) + p1[i]) << 2;
> + break;
> + default:
> + for (i = 0; i < priv->num_sensors; i++) {
> + p1[i] = 500;
> + p2[i] = 780;
> + }
> + break;
> + }
> +
> + compute_intercept_slope(priv, p1, p2, mode);
> + kfree(qfprom_cdata);
> +
> + return 0;
> +}
> +
> static int calibrate_8974(struct tsens_priv *priv)
> {
> int base1 = 0, base2 = 0, i;
> @@ -325,7 +452,7 @@ static int calibrate_8974(struct tsens_priv *priv)
> return 0;
> }
>
> -/* v0.1: 8916, 8974 */
> +/* v0.1: 8916, 8939, 8974 */
>
> static struct tsens_features tsens_v0_1_feat = {
> .ver_major = VER_0_1,
> @@ -386,6 +513,21 @@ struct tsens_plat_data data_8916 = {
> .fields = tsens_v0_1_regfields,
> };
>
> +static const struct tsens_ops ops_8939 = {
> + .init = init_common,
> + .calibrate = calibrate_8939,
> + .get_temp = get_temp_common,
> +};
> +
> +struct tsens_plat_data data_8939 = {
> + .num_sensors = 10,
> + .ops = &ops_8939,
> + .hw_ids = (unsigned int []){ 0, 1, 2, 4, 5, 6, 7, 8, 9, 10 },
> +
> + .feat = &tsens_v0_1_feat,
> + .fields = tsens_v0_1_regfields,
> +};
> +
> static const struct tsens_ops ops_8974 = {
> .init = init_common,
> .calibrate = calibrate_8974,
> diff --git a/drivers/thermal/qcom/tsens.c b/drivers/thermal/qcom/tsens.c
> index 8d3e94d2a9ed..52656a24f813 100644
> --- a/drivers/thermal/qcom/tsens.c
> +++ b/drivers/thermal/qcom/tsens.c
> @@ -897,6 +897,9 @@ static const struct of_device_id tsens_table[] = {
> {
> .compatible = "qcom,msm8916-tsens",
> .data = &data_8916,
> + }, {
> + .compatible = "qcom,msm8939-tsens",
> + .data = &data_8939,
> }, {
> .compatible = "qcom,msm8974-tsens",
> .data = &data_8974,
> diff --git a/drivers/thermal/qcom/tsens.h b/drivers/thermal/qcom/tsens.h
> index 59d01162c66a..f40b625f897e 100644
> --- a/drivers/thermal/qcom/tsens.h
> +++ b/drivers/thermal/qcom/tsens.h
> @@ -585,7 +585,7 @@ int get_temp_common(const struct tsens_sensor *s, int *temp);
> extern struct tsens_plat_data data_8960;
>
> /* TSENS v0.1 targets */
> -extern struct tsens_plat_data data_8916, data_8974;
> +extern struct tsens_plat_data data_8916, data_8939, data_8974;
>
> /* TSENS v1 targets */
> extern struct tsens_plat_data data_tsens_v1, data_8976;
> --
> 2.17.1
>
