| Message ID | 1588238074-19338-3-git-send-email-henry.yen@mediatek.com |
|---|---|
| State | Accepted |
| Commit | 89945047b1666c021c4222ef285239c1275f8e24 |
| Headers | show |
| Series | Mediatek thermal driver update | expand |
On Thu, 2020-04-30 at 17:14 +0800, Henry Yen wrote: > This patch adds full support for ver 2 thermal system (e.g., MT7622 SoC). > The new changes include reading calibration data, converting temperature > and hardware initialization which are specific for version 2 system. > Each platform decides which function to call according to its version. > > Fixes: 3966be3c08c3 ("thermal: mediatek: add support for MT7622 SoC") > Signed-off-by: Henry Yen <henry.yen@mediatek.com> > --- > drivers/thermal/mtk_thermal.c | 132 ++++++++++++++++++++++++++++++++-- > 1 file changed, 125 insertions(+), 7 deletions(-) > > diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c > index 10107d9d56a8..88620f7e9890 100644 > --- a/drivers/thermal/mtk_thermal.c > +++ b/drivers/thermal/mtk_thermal.c > @@ -38,6 +38,7 @@ > #define TEMP_MONIDET0 0x014 > #define TEMP_MONIDET1 0x018 > #define TEMP_MSRCTL0 0x038 > +#define TEMP_MSRCTL1 0x03c > #define TEMP_AHBPOLL 0x040 > #define TEMP_AHBTO 0x044 > #define TEMP_ADCPNP0 0x048 > @@ -133,6 +134,20 @@ > #define CALIB_BUF0_O_SLOPE_SIGN_V1(x) (((x) >> 7) & 0x1) > #define CALIB_BUF1_ID_V1(x) (((x) >> 9) & 0x1) > > +/* > + * Layout of the fuses providing the calibration data > + * These macros could be used for MT7622. > + */ > +#define CALIB_BUF0_ADC_OE_V2(x) (((x) >> 22) & 0x3ff) > +#define CALIB_BUF0_ADC_GE_V2(x) (((x) >> 12) & 0x3ff) > +#define CALIB_BUF0_DEGC_CALI_V2(x) (((x) >> 6) & 0x3f) > +#define CALIB_BUF0_O_SLOPE_V2(x) (((x) >> 0) & 0x3f) > +#define CALIB_BUF1_VTS_TS1_V2(x) (((x) >> 23) & 0x1ff) > +#define CALIB_BUF1_VTS_TS2_V2(x) (((x) >> 14) & 0x1ff) > +#define CALIB_BUF1_VTS_TSABB_V2(x) (((x) >> 5) & 0x1ff) > +#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1) > +#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1) > + > enum { > VTS1, > VTS2, > @@ -143,6 +158,11 @@ enum { > MAX_NUM_VTS, > }; > > +enum mtk_thermal_version { > + MTK_THERMAL_V1 = 1, > + MTK_THERMAL_V2, > +}; > + > /* MT2701 thermal sensors */ > #define MT2701_TS1 0 > #define MT2701_TS2 1 > @@ -245,6 +265,7 @@ struct mtk_thermal_data { > const int *controller_offset; > bool need_switch_bank; > struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; > + enum mtk_thermal_version version; > }; > > struct mtk_thermal { > @@ -258,8 +279,10 @@ struct mtk_thermal { > > /* Calibration values */ > s32 adc_ge; > + s32 adc_oe; > s32 degc_cali; > s32 o_slope; > + s32 o_slope_sign; > s32 vts[MAX_NUM_VTS]; > > const struct mtk_thermal_data *conf; > @@ -398,6 +421,7 @@ static const struct mtk_thermal_data mt8173_thermal_data = { > .msr = mt8173_msr, > .adcpnp = mt8173_adcpnp, > .sensor_mux_values = mt8173_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /* > @@ -428,6 +452,7 @@ static const struct mtk_thermal_data mt2701_thermal_data = { > .msr = mt2701_msr, > .adcpnp = mt2701_adcpnp, > .sensor_mux_values = mt2701_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /* > @@ -458,6 +483,7 @@ static const struct mtk_thermal_data mt2712_thermal_data = { > .msr = mt2712_msr, > .adcpnp = mt2712_adcpnp, > .sensor_mux_values = mt2712_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /* > @@ -482,6 +508,7 @@ static const struct mtk_thermal_data mt7622_thermal_data = { > .msr = mt7622_msr, > .adcpnp = mt7622_adcpnp, > .sensor_mux_values = mt7622_mux_values, > + .version = MTK_THERMAL_V2, > }; > > /* > @@ -514,6 +541,7 @@ static const struct mtk_thermal_data mt8183_thermal_data = { > .msr = mt8183_msr, > .adcpnp = mt8183_adcpnp, > .sensor_mux_values = mt8183_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /** > @@ -540,6 +568,36 @@ static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw) > return mt->degc_cali * 500 - tmp; > } > > +static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw) > +{ > + s32 format_1 = 0; > + s32 format_2 = 0; > + s32 g_oe = 1; > + s32 g_gain = 1; > + s32 g_x_roomt = 0; > + s32 tmp = 0; > + > + if (raw == 0) > + return 0; > + > + raw &= 0xfff; > + g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12); > + g_oe = mt->adc_oe - 512; > + format_1 = mt->vts[VTS2] + 3105 - g_oe; > + format_2 = (mt->degc_cali * 10) >> 1; > + g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain; > + > + tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt; > + tmp = tmp * 10 * 100 / 11; > + > + if (mt->o_slope_sign == 0) > + tmp = tmp / (165 - mt->o_slope); > + else > + tmp = tmp / (165 + mt->o_slope); > + > + return (format_2 - tmp) * 100; > +} > + > /** > * mtk_thermal_get_bank - get bank > * @bank: The bank > @@ -594,9 +652,13 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) > raw = readl(mt->thermal_base + > conf->msr[conf->bank_data[bank->id].sensors[i]]); > > - temp = raw_to_mcelsius_v1(mt, > - conf->bank_data[bank->id].sensors[i], > - raw); > + if (mt->conf->version == MTK_THERMAL_V1) { > + temp = raw_to_mcelsius_v1( > + mt, conf->bank_data[bank->id].sensors[i], raw); > + } else { > + temp = raw_to_mcelsius_v2( > + mt, conf->bank_data[bank->id].sensors[i], raw); > + } > > /* > * The first read of a sensor often contains very high bogus > @@ -698,9 +760,11 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, > writel(auxadc_phys_base + AUXADC_CON1_CLR_V, > controller_base + TEMP_ADCMUXADDR); > > - /* AHB address for pnp sensor mux selection */ > - writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, > - controller_base + TEMP_PNPMUXADDR); > + if (mt->conf->version == MTK_THERMAL_V1) { > + /* AHB address for pnp sensor mux selection */ > + writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, > + controller_base + TEMP_PNPMUXADDR); > + } > > /* AHB value for auxadc enable */ > writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN); > @@ -803,6 +867,23 @@ static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf) > return 0; > } > > +static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf) > +{ > + if (!CALIB_BUF1_VALID_V2(buf[1])) > + return -EINVAL; > + > + mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]); > + mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]); > + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]); > + mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]); > + mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]); > + mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]); > + mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]); > + mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]); > + > + return 0; > +} > + > static int mtk_thermal_get_calibration_data(struct device *dev, > struct mtk_thermal *mt) > { > @@ -838,8 +919,15 @@ static int mtk_thermal_get_calibration_data(struct device *dev, > goto out; > } > > - if (mtk_thermal_extract_efuse_v1(mt, buf)) > + if (mt->conf->version == MTK_THERMAL_V1) > + ret = mtk_thermal_extract_efuse_v1(mt, buf); > + else > + ret = mtk_thermal_extract_efuse_v2(mt, buf); > + > + if (ret) { > dev_info(dev, "Device not calibrated, using default calibration values\n"); > + ret = 0; > + } > > out: > kfree(buf); > @@ -872,6 +960,28 @@ static const struct of_device_id mtk_thermal_of_match[] = { > }; > MODULE_DEVICE_TABLE(of, mtk_thermal_of_match); > > +static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base) > +{ > + int tmp; > + > + tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1); > + tmp &= ~(0x37); > + tmp |= 0x1; > + writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1); > + udelay(200); > +} > + > +static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt, > + void __iomem *auxadc_base) > +{ > + int tmp; > + > + writel(0x800, auxadc_base + AUXADC_CON1_SET_V); > + writel(0x1, mt->thermal_base + TEMP_MONCTL0); > + tmp = readl(mt->thermal_base + TEMP_MSRCTL1); > + writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1); > +} > + > static int mtk_thermal_probe(struct platform_device *pdev) > { > int ret, i, ctrl_id; > @@ -880,6 +990,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) > struct resource *res; > u64 auxadc_phys_base, apmixed_phys_base; > struct thermal_zone_device *tzdev; > + void __iomem *apmixed_base, *auxadc_base; > > mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); > if (!mt) > @@ -914,6 +1025,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) > return -ENODEV; > } > > + auxadc_base = of_iomap(auxadc, 0); > auxadc_phys_base = of_get_phys_base(auxadc); > > of_node_put(auxadc); > @@ -929,6 +1041,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) > return -ENODEV; > } > > + apmixed_base = of_iomap(apmixedsys, 0); > apmixed_phys_base = of_get_phys_base(apmixedsys); > > of_node_put(apmixedsys); > @@ -954,6 +1067,11 @@ static int mtk_thermal_probe(struct platform_device *pdev) > goto err_disable_clk_auxadc; > } > > + if (mt->conf->version == MTK_THERMAL_V2) { > + mtk_thermal_turn_on_buffer(apmixed_base); > + mtk_thermal_release_periodic_ts(mt, auxadc_base); > + } > + > for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++) > for (i = 0; i < mt->conf->num_banks; i++) > mtk_thermal_init_bank(mt, i, apmixed_phys_base, Just gently ping. Many thanks.
On 30/04/2020 11:14, Henry Yen wrote: > This patch adds full support for ver 2 thermal system (e.g., MT7622 SoC). > The new changes include reading calibration data, converting temperature > and hardware initialization which are specific for version 2 system. > Each platform decides which function to call according to its version. > > Fixes: 3966be3c08c3 ("thermal: mediatek: add support for MT7622 SoC") > Signed-off-by: Henry Yen <henry.yen@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> > --- > drivers/thermal/mtk_thermal.c | 132 ++++++++++++++++++++++++++++++++-- > 1 file changed, 125 insertions(+), 7 deletions(-) > > diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c > index 10107d9d56a8..88620f7e9890 100644 > --- a/drivers/thermal/mtk_thermal.c > +++ b/drivers/thermal/mtk_thermal.c > @@ -38,6 +38,7 @@ > #define TEMP_MONIDET0 0x014 > #define TEMP_MONIDET1 0x018 > #define TEMP_MSRCTL0 0x038 > +#define TEMP_MSRCTL1 0x03c > #define TEMP_AHBPOLL 0x040 > #define TEMP_AHBTO 0x044 > #define TEMP_ADCPNP0 0x048 > @@ -133,6 +134,20 @@ > #define CALIB_BUF0_O_SLOPE_SIGN_V1(x) (((x) >> 7) & 0x1) > #define CALIB_BUF1_ID_V1(x) (((x) >> 9) & 0x1) > > +/* > + * Layout of the fuses providing the calibration data > + * These macros could be used for MT7622. > + */ > +#define CALIB_BUF0_ADC_OE_V2(x) (((x) >> 22) & 0x3ff) > +#define CALIB_BUF0_ADC_GE_V2(x) (((x) >> 12) & 0x3ff) > +#define CALIB_BUF0_DEGC_CALI_V2(x) (((x) >> 6) & 0x3f) > +#define CALIB_BUF0_O_SLOPE_V2(x) (((x) >> 0) & 0x3f) > +#define CALIB_BUF1_VTS_TS1_V2(x) (((x) >> 23) & 0x1ff) > +#define CALIB_BUF1_VTS_TS2_V2(x) (((x) >> 14) & 0x1ff) > +#define CALIB_BUF1_VTS_TSABB_V2(x) (((x) >> 5) & 0x1ff) > +#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1) > +#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1) > + > enum { > VTS1, > VTS2, > @@ -143,6 +158,11 @@ enum { > MAX_NUM_VTS, > }; > > +enum mtk_thermal_version { > + MTK_THERMAL_V1 = 1, > + MTK_THERMAL_V2, > +}; > + > /* MT2701 thermal sensors */ > #define MT2701_TS1 0 > #define MT2701_TS2 1 > @@ -245,6 +265,7 @@ struct mtk_thermal_data { > const int *controller_offset; > bool need_switch_bank; > struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; > + enum mtk_thermal_version version; > }; > > struct mtk_thermal { > @@ -258,8 +279,10 @@ struct mtk_thermal { > > /* Calibration values */ > s32 adc_ge; > + s32 adc_oe; > s32 degc_cali; > s32 o_slope; > + s32 o_slope_sign; > s32 vts[MAX_NUM_VTS]; > > const struct mtk_thermal_data *conf; > @@ -398,6 +421,7 @@ static const struct mtk_thermal_data mt8173_thermal_data = { > .msr = mt8173_msr, > .adcpnp = mt8173_adcpnp, > .sensor_mux_values = mt8173_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /* > @@ -428,6 +452,7 @@ static const struct mtk_thermal_data mt2701_thermal_data = { > .msr = mt2701_msr, > .adcpnp = mt2701_adcpnp, > .sensor_mux_values = mt2701_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /* > @@ -458,6 +483,7 @@ static const struct mtk_thermal_data mt2712_thermal_data = { > .msr = mt2712_msr, > .adcpnp = mt2712_adcpnp, > .sensor_mux_values = mt2712_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /* > @@ -482,6 +508,7 @@ static const struct mtk_thermal_data mt7622_thermal_data = { > .msr = mt7622_msr, > .adcpnp = mt7622_adcpnp, > .sensor_mux_values = mt7622_mux_values, > + .version = MTK_THERMAL_V2, > }; > > /* > @@ -514,6 +541,7 @@ static const struct mtk_thermal_data mt8183_thermal_data = { > .msr = mt8183_msr, > .adcpnp = mt8183_adcpnp, > .sensor_mux_values = mt8183_mux_values, > + .version = MTK_THERMAL_V1, > }; > > /** > @@ -540,6 +568,36 @@ static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw) > return mt->degc_cali * 500 - tmp; > } > > +static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw) > +{ > + s32 format_1 = 0; > + s32 format_2 = 0; > + s32 g_oe = 1; > + s32 g_gain = 1; > + s32 g_x_roomt = 0; > + s32 tmp = 0; > + > + if (raw == 0) > + return 0; > + > + raw &= 0xfff; > + g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12); > + g_oe = mt->adc_oe - 512; > + format_1 = mt->vts[VTS2] + 3105 - g_oe; > + format_2 = (mt->degc_cali * 10) >> 1; > + g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain; > + > + tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt; > + tmp = tmp * 10 * 100 / 11; > + > + if (mt->o_slope_sign == 0) > + tmp = tmp / (165 - mt->o_slope); > + else > + tmp = tmp / (165 + mt->o_slope); > + > + return (format_2 - tmp) * 100; > +} > + > /** > * mtk_thermal_get_bank - get bank > * @bank: The bank > @@ -594,9 +652,13 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) > raw = readl(mt->thermal_base + > conf->msr[conf->bank_data[bank->id].sensors[i]]); > > - temp = raw_to_mcelsius_v1(mt, > - conf->bank_data[bank->id].sensors[i], > - raw); > + if (mt->conf->version == MTK_THERMAL_V1) { > + temp = raw_to_mcelsius_v1( > + mt, conf->bank_data[bank->id].sensors[i], raw); > + } else { > + temp = raw_to_mcelsius_v2( > + mt, conf->bank_data[bank->id].sensors[i], raw); > + } > > /* > * The first read of a sensor often contains very high bogus > @@ -698,9 +760,11 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, > writel(auxadc_phys_base + AUXADC_CON1_CLR_V, > controller_base + TEMP_ADCMUXADDR); > > - /* AHB address for pnp sensor mux selection */ > - writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, > - controller_base + TEMP_PNPMUXADDR); > + if (mt->conf->version == MTK_THERMAL_V1) { > + /* AHB address for pnp sensor mux selection */ > + writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, > + controller_base + TEMP_PNPMUXADDR); > + } > > /* AHB value for auxadc enable */ > writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN); > @@ -803,6 +867,23 @@ static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf) > return 0; > } > > +static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf) > +{ > + if (!CALIB_BUF1_VALID_V2(buf[1])) > + return -EINVAL; > + > + mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]); > + mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]); > + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]); > + mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]); > + mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]); > + mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]); > + mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]); > + mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]); > + > + return 0; > +} > + > static int mtk_thermal_get_calibration_data(struct device *dev, > struct mtk_thermal *mt) > { > @@ -838,8 +919,15 @@ static int mtk_thermal_get_calibration_data(struct device *dev, > goto out; > } > > - if (mtk_thermal_extract_efuse_v1(mt, buf)) > + if (mt->conf->version == MTK_THERMAL_V1) > + ret = mtk_thermal_extract_efuse_v1(mt, buf); > + else > + ret = mtk_thermal_extract_efuse_v2(mt, buf); > + > + if (ret) { > dev_info(dev, "Device not calibrated, using default calibration values\n"); > + ret = 0; > + } > > out: > kfree(buf); > @@ -872,6 +960,28 @@ static const struct of_device_id mtk_thermal_of_match[] = { > }; > MODULE_DEVICE_TABLE(of, mtk_thermal_of_match); > > +static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base) > +{ > + int tmp; > + > + tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1); > + tmp &= ~(0x37); > + tmp |= 0x1; > + writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1); > + udelay(200); > +} > + > +static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt, > + void __iomem *auxadc_base) > +{ > + int tmp; > + > + writel(0x800, auxadc_base + AUXADC_CON1_SET_V); > + writel(0x1, mt->thermal_base + TEMP_MONCTL0); > + tmp = readl(mt->thermal_base + TEMP_MSRCTL1); > + writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1); > +} > + > static int mtk_thermal_probe(struct platform_device *pdev) > { > int ret, i, ctrl_id; > @@ -880,6 +990,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) > struct resource *res; > u64 auxadc_phys_base, apmixed_phys_base; > struct thermal_zone_device *tzdev; > + void __iomem *apmixed_base, *auxadc_base; > > mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); > if (!mt) > @@ -914,6 +1025,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) > return -ENODEV; > } > > + auxadc_base = of_iomap(auxadc, 0); > auxadc_phys_base = of_get_phys_base(auxadc); > > of_node_put(auxadc); > @@ -929,6 +1041,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) > return -ENODEV; > } > > + apmixed_base = of_iomap(apmixedsys, 0); > apmixed_phys_base = of_get_phys_base(apmixedsys); > > of_node_put(apmixedsys); > @@ -954,6 +1067,11 @@ static int mtk_thermal_probe(struct platform_device *pdev) > goto err_disable_clk_auxadc; > } > > + if (mt->conf->version == MTK_THERMAL_V2) { > + mtk_thermal_turn_on_buffer(apmixed_base); > + mtk_thermal_release_periodic_ts(mt, auxadc_base); > + } > + > for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++) > for (i = 0; i < mt->conf->num_banks; i++) > mtk_thermal_init_bank(mt, i, apmixed_phys_base, >
On 30/07/2020 19:45, Frank Wunderlich wrote: > Tested on bpi-r64 and r2, i hope this can be merged to next / 5.9 > > Tested-By: Frank Wunderlich <frank-w@public-files.de> Thanks for testing, applied for v5.9 -- <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook | <http://twitter.com/#!/linaroorg> Twitter | <http://www.linaro.org/linaro-blog/> Blog
diff --git a/drivers/thermal/mtk_thermal.c b/drivers/thermal/mtk_thermal.c index 10107d9d56a8..88620f7e9890 100644 --- a/drivers/thermal/mtk_thermal.c +++ b/drivers/thermal/mtk_thermal.c @@ -38,6 +38,7 @@ #define TEMP_MONIDET0 0x014 #define TEMP_MONIDET1 0x018 #define TEMP_MSRCTL0 0x038 +#define TEMP_MSRCTL1 0x03c #define TEMP_AHBPOLL 0x040 #define TEMP_AHBTO 0x044 #define TEMP_ADCPNP0 0x048 @@ -133,6 +134,20 @@ #define CALIB_BUF0_O_SLOPE_SIGN_V1(x) (((x) >> 7) & 0x1) #define CALIB_BUF1_ID_V1(x) (((x) >> 9) & 0x1) +/* + * Layout of the fuses providing the calibration data + * These macros could be used for MT7622. + */ +#define CALIB_BUF0_ADC_OE_V2(x) (((x) >> 22) & 0x3ff) +#define CALIB_BUF0_ADC_GE_V2(x) (((x) >> 12) & 0x3ff) +#define CALIB_BUF0_DEGC_CALI_V2(x) (((x) >> 6) & 0x3f) +#define CALIB_BUF0_O_SLOPE_V2(x) (((x) >> 0) & 0x3f) +#define CALIB_BUF1_VTS_TS1_V2(x) (((x) >> 23) & 0x1ff) +#define CALIB_BUF1_VTS_TS2_V2(x) (((x) >> 14) & 0x1ff) +#define CALIB_BUF1_VTS_TSABB_V2(x) (((x) >> 5) & 0x1ff) +#define CALIB_BUF1_VALID_V2(x) (((x) >> 4) & 0x1) +#define CALIB_BUF1_O_SLOPE_SIGN_V2(x) (((x) >> 3) & 0x1) + enum { VTS1, VTS2, @@ -143,6 +158,11 @@ enum { MAX_NUM_VTS, }; +enum mtk_thermal_version { + MTK_THERMAL_V1 = 1, + MTK_THERMAL_V2, +}; + /* MT2701 thermal sensors */ #define MT2701_TS1 0 #define MT2701_TS2 1 @@ -245,6 +265,7 @@ struct mtk_thermal_data { const int *controller_offset; bool need_switch_bank; struct thermal_bank_cfg bank_data[MAX_NUM_ZONES]; + enum mtk_thermal_version version; }; struct mtk_thermal { @@ -258,8 +279,10 @@ struct mtk_thermal { /* Calibration values */ s32 adc_ge; + s32 adc_oe; s32 degc_cali; s32 o_slope; + s32 o_slope_sign; s32 vts[MAX_NUM_VTS]; const struct mtk_thermal_data *conf; @@ -398,6 +421,7 @@ static const struct mtk_thermal_data mt8173_thermal_data = { .msr = mt8173_msr, .adcpnp = mt8173_adcpnp, .sensor_mux_values = mt8173_mux_values, + .version = MTK_THERMAL_V1, }; /* @@ -428,6 +452,7 @@ static const struct mtk_thermal_data mt2701_thermal_data = { .msr = mt2701_msr, .adcpnp = mt2701_adcpnp, .sensor_mux_values = mt2701_mux_values, + .version = MTK_THERMAL_V1, }; /* @@ -458,6 +483,7 @@ static const struct mtk_thermal_data mt2712_thermal_data = { .msr = mt2712_msr, .adcpnp = mt2712_adcpnp, .sensor_mux_values = mt2712_mux_values, + .version = MTK_THERMAL_V1, }; /* @@ -482,6 +508,7 @@ static const struct mtk_thermal_data mt7622_thermal_data = { .msr = mt7622_msr, .adcpnp = mt7622_adcpnp, .sensor_mux_values = mt7622_mux_values, + .version = MTK_THERMAL_V2, }; /* @@ -514,6 +541,7 @@ static const struct mtk_thermal_data mt8183_thermal_data = { .msr = mt8183_msr, .adcpnp = mt8183_adcpnp, .sensor_mux_values = mt8183_mux_values, + .version = MTK_THERMAL_V1, }; /** @@ -540,6 +568,36 @@ static int raw_to_mcelsius_v1(struct mtk_thermal *mt, int sensno, s32 raw) return mt->degc_cali * 500 - tmp; } +static int raw_to_mcelsius_v2(struct mtk_thermal *mt, int sensno, s32 raw) +{ + s32 format_1 = 0; + s32 format_2 = 0; + s32 g_oe = 1; + s32 g_gain = 1; + s32 g_x_roomt = 0; + s32 tmp = 0; + + if (raw == 0) + return 0; + + raw &= 0xfff; + g_gain = 10000 + (((mt->adc_ge - 512) * 10000) >> 12); + g_oe = mt->adc_oe - 512; + format_1 = mt->vts[VTS2] + 3105 - g_oe; + format_2 = (mt->degc_cali * 10) >> 1; + g_x_roomt = (((format_1 * 10000) >> 12) * 10000) / g_gain; + + tmp = (((((raw - g_oe) * 10000) >> 12) * 10000) / g_gain) - g_x_roomt; + tmp = tmp * 10 * 100 / 11; + + if (mt->o_slope_sign == 0) + tmp = tmp / (165 - mt->o_slope); + else + tmp = tmp / (165 + mt->o_slope); + + return (format_2 - tmp) * 100; +} + /** * mtk_thermal_get_bank - get bank * @bank: The bank @@ -594,9 +652,13 @@ static int mtk_thermal_bank_temperature(struct mtk_thermal_bank *bank) raw = readl(mt->thermal_base + conf->msr[conf->bank_data[bank->id].sensors[i]]); - temp = raw_to_mcelsius_v1(mt, - conf->bank_data[bank->id].sensors[i], - raw); + if (mt->conf->version == MTK_THERMAL_V1) { + temp = raw_to_mcelsius_v1( + mt, conf->bank_data[bank->id].sensors[i], raw); + } else { + temp = raw_to_mcelsius_v2( + mt, conf->bank_data[bank->id].sensors[i], raw); + } /* * The first read of a sensor often contains very high bogus @@ -698,9 +760,11 @@ static void mtk_thermal_init_bank(struct mtk_thermal *mt, int num, writel(auxadc_phys_base + AUXADC_CON1_CLR_V, controller_base + TEMP_ADCMUXADDR); - /* AHB address for pnp sensor mux selection */ - writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, - controller_base + TEMP_PNPMUXADDR); + if (mt->conf->version == MTK_THERMAL_V1) { + /* AHB address for pnp sensor mux selection */ + writel(apmixed_phys_base + APMIXED_SYS_TS_CON1, + controller_base + TEMP_PNPMUXADDR); + } /* AHB value for auxadc enable */ writel(BIT(conf->auxadc_channel), controller_base + TEMP_ADCEN); @@ -803,6 +867,23 @@ static int mtk_thermal_extract_efuse_v1(struct mtk_thermal *mt, u32 *buf) return 0; } +static int mtk_thermal_extract_efuse_v2(struct mtk_thermal *mt, u32 *buf) +{ + if (!CALIB_BUF1_VALID_V2(buf[1])) + return -EINVAL; + + mt->adc_oe = CALIB_BUF0_ADC_OE_V2(buf[0]); + mt->adc_ge = CALIB_BUF0_ADC_GE_V2(buf[0]); + mt->degc_cali = CALIB_BUF0_DEGC_CALI_V2(buf[0]); + mt->o_slope = CALIB_BUF0_O_SLOPE_V2(buf[0]); + mt->vts[VTS1] = CALIB_BUF1_VTS_TS1_V2(buf[1]); + mt->vts[VTS2] = CALIB_BUF1_VTS_TS2_V2(buf[1]); + mt->vts[VTSABB] = CALIB_BUF1_VTS_TSABB_V2(buf[1]); + mt->o_slope_sign = CALIB_BUF1_O_SLOPE_SIGN_V2(buf[1]); + + return 0; +} + static int mtk_thermal_get_calibration_data(struct device *dev, struct mtk_thermal *mt) { @@ -838,8 +919,15 @@ static int mtk_thermal_get_calibration_data(struct device *dev, goto out; } - if (mtk_thermal_extract_efuse_v1(mt, buf)) + if (mt->conf->version == MTK_THERMAL_V1) + ret = mtk_thermal_extract_efuse_v1(mt, buf); + else + ret = mtk_thermal_extract_efuse_v2(mt, buf); + + if (ret) { dev_info(dev, "Device not calibrated, using default calibration values\n"); + ret = 0; + } out: kfree(buf); @@ -872,6 +960,28 @@ static const struct of_device_id mtk_thermal_of_match[] = { }; MODULE_DEVICE_TABLE(of, mtk_thermal_of_match); +static void mtk_thermal_turn_on_buffer(void __iomem *apmixed_base) +{ + int tmp; + + tmp = readl(apmixed_base + APMIXED_SYS_TS_CON1); + tmp &= ~(0x37); + tmp |= 0x1; + writel(tmp, apmixed_base + APMIXED_SYS_TS_CON1); + udelay(200); +} + +static void mtk_thermal_release_periodic_ts(struct mtk_thermal *mt, + void __iomem *auxadc_base) +{ + int tmp; + + writel(0x800, auxadc_base + AUXADC_CON1_SET_V); + writel(0x1, mt->thermal_base + TEMP_MONCTL0); + tmp = readl(mt->thermal_base + TEMP_MSRCTL1); + writel((tmp & (~0x10e)), mt->thermal_base + TEMP_MSRCTL1); +} + static int mtk_thermal_probe(struct platform_device *pdev) { int ret, i, ctrl_id; @@ -880,6 +990,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) struct resource *res; u64 auxadc_phys_base, apmixed_phys_base; struct thermal_zone_device *tzdev; + void __iomem *apmixed_base, *auxadc_base; mt = devm_kzalloc(&pdev->dev, sizeof(*mt), GFP_KERNEL); if (!mt) @@ -914,6 +1025,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) return -ENODEV; } + auxadc_base = of_iomap(auxadc, 0); auxadc_phys_base = of_get_phys_base(auxadc); of_node_put(auxadc); @@ -929,6 +1041,7 @@ static int mtk_thermal_probe(struct platform_device *pdev) return -ENODEV; } + apmixed_base = of_iomap(apmixedsys, 0); apmixed_phys_base = of_get_phys_base(apmixedsys); of_node_put(apmixedsys); @@ -954,6 +1067,11 @@ static int mtk_thermal_probe(struct platform_device *pdev) goto err_disable_clk_auxadc; } + if (mt->conf->version == MTK_THERMAL_V2) { + mtk_thermal_turn_on_buffer(apmixed_base); + mtk_thermal_release_periodic_ts(mt, auxadc_base); + } + for (ctrl_id = 0; ctrl_id < mt->conf->num_controller ; ctrl_id++) for (i = 0; i < mt->conf->num_banks; i++) mtk_thermal_init_bank(mt, i, apmixed_phys_base,
This patch adds full support for ver 2 thermal system (e.g., MT7622 SoC). The new changes include reading calibration data, converting temperature and hardware initialization which are specific for version 2 system. Each platform decides which function to call according to its version. Fixes: 3966be3c08c3 ("thermal: mediatek: add support for MT7622 SoC") Signed-off-by: Henry Yen <henry.yen@mediatek.com> --- drivers/thermal/mtk_thermal.c | 132 ++++++++++++++++++++++++++++++++-- 1 file changed, 125 insertions(+), 7 deletions(-) -- 2.17.1