Hi Lukasz, Genlty Ping.
Best Regards, Chanwoo Choi On 03/10/2015 11:23 AM, Chanwoo Choi wrote: > This patch adds the support for Exynos5433's TMU (Thermal Management Unit). > Exynos5433 has a little different register bit fields as following > description: > - Support the eight trip points for rising/falling interrupt by using two > registers > - Read the calibration type (1-point or 2-point) and sensor id from TRIMINFO > register > - Use a little different register address > > Cc: Zhang Rui <rui.zh...@intel.com> > Cc: Eduardo Valentin <edubez...@gmail.com> > Cc: Lukasz Majewski <l.majew...@samsung.com> > Signed-off-by: Chanwoo Choi <cw00.c...@samsung.com> > --- > Changes from v1: > (https://lkml.org/lkml/2015/2/26/234) > - Add exynos5433_tmu_control() instead of using exynos7_tmu_control() on both > Exynos5433 and Exynos7. > - Separate the patches related to devicetree and then send send Exnos5433's > tmu > patches[1] with other Exynos5433 devicetree patches. > [1] https://lkml.org/lkml/2015/3/9/1036 > > drivers/thermal/samsung/exynos_tmu.c | 187 > ++++++++++++++++++++++++++++++++++- > drivers/thermal/samsung/exynos_tmu.h | 1 + > 2 files changed, 186 insertions(+), 2 deletions(-) > > diff --git a/drivers/thermal/samsung/exynos_tmu.c > b/drivers/thermal/samsung/exynos_tmu.c > index 1d30b09..531f4b17 100644 > --- a/drivers/thermal/samsung/exynos_tmu.c > +++ b/drivers/thermal/samsung/exynos_tmu.c > @@ -97,6 +97,32 @@ > #define EXYNOS4412_MUX_ADDR_VALUE 6 > #define EXYNOS4412_MUX_ADDR_SHIFT 20 > > +/* Exynos5433 specific registers */ > +#define EXYNOS5433_TMU_REG_CONTROL1 0x024 > +#define EXYNOS5433_TMU_SAMPLING_INTERVAL 0x02c > +#define EXYNOS5433_TMU_COUNTER_VALUE0 0x030 > +#define EXYNOS5433_TMU_COUNTER_VALUE1 0x034 > +#define EXYNOS5433_TMU_REG_CURRENT_TEMP1 0x044 > +#define EXYNOS5433_THD_TEMP_RISE3_0 0x050 > +#define EXYNOS5433_THD_TEMP_RISE7_4 0x054 > +#define EXYNOS5433_THD_TEMP_FALL3_0 0x060 > +#define EXYNOS5433_THD_TEMP_FALL7_4 0x064 > +#define EXYNOS5433_TMU_REG_INTEN 0x0c0 > +#define EXYNOS5433_TMU_REG_INTPEND 0x0c8 > +#define EXYNOS5433_TMU_EMUL_CON 0x110 > +#define EXYNOS5433_TMU_PD_DET_EN 0x130 > + > +#define EXYNOS5433_TRIMINFO_SENSOR_ID_SHIFT 16 > +#define EXYNOS5433_TRIMINFO_CALIB_SEL_SHIFT 23 > +#define EXYNOS5433_TRIMINFO_SENSOR_ID_MASK \ > + (0xf << EXYNOS5433_TRIMINFO_SENSOR_ID_SHIFT) > +#define EXYNOS5433_TRIMINFO_CALIB_SEL_MASK BIT(23) > + > +#define EXYNOS5433_TRIMINFO_ONE_POINT_TRIMMING 0 > +#define EXYNOS5433_TRIMINFO_TWO_POINT_TRIMMING 1 > + > +#define EXYNOS5433_PD_DET_EN 1 > + > /*exynos5440 specific registers*/ > #define EXYNOS5440_TMU_S0_7_TRIM 0x000 > #define EXYNOS5440_TMU_S0_7_CTRL 0x020 > @@ -484,6 +510,101 @@ out: > return ret; > } > > +static int exynos5433_tmu_initialize(struct platform_device *pdev) > +{ > + struct exynos_tmu_data *data = platform_get_drvdata(pdev); > + struct exynos_tmu_platform_data *pdata = data->pdata; > + struct thermal_zone_device *tz = data->tzd; > + unsigned int status, trim_info; > + unsigned int rising_threshold = 0, falling_threshold = 0; > + unsigned long temp, temp_hist; > + int ret = 0, threshold_code, i, sensor_id, cal_type; > + > + status = readb(data->base + EXYNOS_TMU_REG_STATUS); > + if (!status) { > + ret = -EBUSY; > + goto out; > + } > + > + trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO); > + sanitize_temp_error(data, trim_info); > + > + /* Read the temperature sensor id */ > + sensor_id = (trim_info & EXYNOS5433_TRIMINFO_SENSOR_ID_MASK) > + >> EXYNOS5433_TRIMINFO_SENSOR_ID_SHIFT; > + dev_info(&pdev->dev, "Temperature sensor ID: 0x%x\n", sensor_id); > + > + /* Read the calibration mode */ > + writel(trim_info, data->base + EXYNOS_TMU_REG_TRIMINFO); > + cal_type = (trim_info & EXYNOS5433_TRIMINFO_CALIB_SEL_MASK) > + >> EXYNOS5433_TRIMINFO_CALIB_SEL_SHIFT; > + > + switch (cal_type) { > + case EXYNOS5433_TRIMINFO_ONE_POINT_TRIMMING: > + pdata->cal_type = TYPE_ONE_POINT_TRIMMING; > + break; > + case EXYNOS5433_TRIMINFO_TWO_POINT_TRIMMING: > + pdata->cal_type = TYPE_TWO_POINT_TRIMMING; > + break; > + default: > + pdata->cal_type = TYPE_ONE_POINT_TRIMMING; > + break; > + }; > + > + dev_info(&pdev->dev, "Calibration type is %d-point calibration\n", > + cal_type ? 2 : 1); > + > + /* Write temperature code for rising and falling threshold */ > + for (i = 0; i < of_thermal_get_ntrips(tz); i++) { > + int rising_reg_offset, falling_reg_offset; > + int j = 0; > + > + switch (i) { > + case 0: > + case 1: > + case 2: > + case 3: > + rising_reg_offset = EXYNOS5433_THD_TEMP_RISE3_0; > + falling_reg_offset = EXYNOS5433_THD_TEMP_FALL3_0; > + j = i; > + break; > + case 4: > + case 5: > + case 6: > + case 7: > + rising_reg_offset = EXYNOS5433_THD_TEMP_RISE7_4; > + falling_reg_offset = EXYNOS5433_THD_TEMP_FALL7_4; > + j = i - 4; > + break; > + default: > + continue; > + } > + > + /* Write temperature code for rising threshold */ > + tz->ops->get_trip_temp(tz, i, &temp); > + temp /= MCELSIUS; > + threshold_code = temp_to_code(data, temp); > + > + rising_threshold = readl(data->base + rising_reg_offset); > + rising_threshold |= (threshold_code << j * 8); > + writel(rising_threshold, data->base + rising_reg_offset); > + > + /* Write temperature code for falling threshold */ > + tz->ops->get_trip_hyst(tz, i, &temp_hist); > + temp_hist = temp - (temp_hist / MCELSIUS); > + threshold_code = temp_to_code(data, temp_hist); > + > + falling_threshold = readl(data->base + falling_reg_offset); > + falling_threshold &= ~(0xff << j * 8); > + falling_threshold |= (threshold_code << j * 8); > + writel(falling_threshold, data->base + falling_reg_offset); > + } > + > + data->tmu_clear_irqs(data); > +out: > + return ret; > +} > + > static int exynos5440_tmu_initialize(struct platform_device *pdev) > { > struct exynos_tmu_data *data = platform_get_drvdata(pdev); > @@ -643,6 +764,48 @@ static void exynos4210_tmu_control(struct > platform_device *pdev, bool on) > writel(con, data->base + EXYNOS_TMU_REG_CONTROL); > } > > +static void exynos5433_tmu_control(struct platform_device *pdev, bool on) > +{ > + struct exynos_tmu_data *data = platform_get_drvdata(pdev); > + struct thermal_zone_device *tz = data->tzd; > + unsigned int con, interrupt_en, pd_det_en; > + > + con = get_con_reg(data, readl(data->base + EXYNOS_TMU_REG_CONTROL)); > + > + if (on) { > + con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT); > + interrupt_en = > + (of_thermal_is_trip_valid(tz, 7) > + << EXYNOS7_TMU_INTEN_RISE7_SHIFT) | > + (of_thermal_is_trip_valid(tz, 6) > + << EXYNOS7_TMU_INTEN_RISE6_SHIFT) | > + (of_thermal_is_trip_valid(tz, 5) > + << EXYNOS7_TMU_INTEN_RISE5_SHIFT) | > + (of_thermal_is_trip_valid(tz, 4) > + << EXYNOS7_TMU_INTEN_RISE4_SHIFT) | > + (of_thermal_is_trip_valid(tz, 3) > + << EXYNOS7_TMU_INTEN_RISE3_SHIFT) | > + (of_thermal_is_trip_valid(tz, 2) > + << EXYNOS7_TMU_INTEN_RISE2_SHIFT) | > + (of_thermal_is_trip_valid(tz, 1) > + << EXYNOS7_TMU_INTEN_RISE1_SHIFT) | > + (of_thermal_is_trip_valid(tz, 0) > + << EXYNOS7_TMU_INTEN_RISE0_SHIFT); > + > + interrupt_en |= > + interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT; > + } else { > + con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT); > + interrupt_en = 0; /* Disable all interrupts */ > + } > + > + pd_det_en = on ? EXYNOS5433_PD_DET_EN : 0; > + > + writel(pd_det_en, data->base + EXYNOS5433_TMU_PD_DET_EN); > + writel(interrupt_en, data->base + EXYNOS5433_TMU_REG_INTEN); > + writel(con, data->base + EXYNOS_TMU_REG_CONTROL); > +} > + > static void exynos5440_tmu_control(struct platform_device *pdev, bool on) > { > struct exynos_tmu_data *data = platform_get_drvdata(pdev); > @@ -770,6 +933,8 @@ static void exynos4412_tmu_set_emulation(struct > exynos_tmu_data *data, > > if (data->soc == SOC_ARCH_EXYNOS5260) > emul_con = EXYNOS5260_EMUL_CON; > + if (data->soc == SOC_ARCH_EXYNOS5433) > + emul_con = EXYNOS5433_TMU_EMUL_CON; > else if (data->soc == SOC_ARCH_EXYNOS7) > emul_con = EXYNOS7_TMU_REG_EMUL_CON; > else > @@ -882,6 +1047,9 @@ static void exynos4210_tmu_clear_irqs(struct > exynos_tmu_data *data) > } else if (data->soc == SOC_ARCH_EXYNOS7) { > tmu_intstat = EXYNOS7_TMU_REG_INTPEND; > tmu_intclear = EXYNOS7_TMU_REG_INTPEND; > + } else if (data->soc == SOC_ARCH_EXYNOS5433) { > + tmu_intstat = EXYNOS5433_TMU_REG_INTPEND; > + tmu_intclear = EXYNOS5433_TMU_REG_INTPEND; > } else { > tmu_intstat = EXYNOS_TMU_REG_INTSTAT; > tmu_intclear = EXYNOS_TMU_REG_INTCLEAR; > @@ -926,6 +1094,7 @@ static const struct of_device_id exynos_tmu_match[] = { > { .compatible = "samsung,exynos5260-tmu", }, > { .compatible = "samsung,exynos5420-tmu", }, > { .compatible = "samsung,exynos5420-tmu-ext-triminfo", }, > + { .compatible = "samsung,exynos5433-tmu", }, > { .compatible = "samsung,exynos5440-tmu", }, > { .compatible = "samsung,exynos7-tmu", }, > { /* sentinel */ }, > @@ -949,6 +1118,8 @@ static int exynos_of_get_soc_type(struct device_node *np) > else if (of_device_is_compatible(np, > "samsung,exynos5420-tmu-ext-triminfo")) > return SOC_ARCH_EXYNOS5420_TRIMINFO; > + else if (of_device_is_compatible(np, "samsung,exynos5433-tmu")) > + return SOC_ARCH_EXYNOS5433; > else if (of_device_is_compatible(np, "samsung,exynos5440-tmu")) > return SOC_ARCH_EXYNOS5440; > else if (of_device_is_compatible(np, "samsung,exynos7-tmu")) > @@ -1069,6 +1240,13 @@ static int exynos_map_dt_data(struct platform_device > *pdev) > data->tmu_set_emulation = exynos4412_tmu_set_emulation; > data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; > break; > + case SOC_ARCH_EXYNOS5433: > + data->tmu_initialize = exynos5433_tmu_initialize; > + data->tmu_control = exynos5433_tmu_control; > + data->tmu_read = exynos4412_tmu_read; > + data->tmu_set_emulation = exynos4412_tmu_set_emulation; > + data->tmu_clear_irqs = exynos4210_tmu_clear_irqs; > + break; > case SOC_ARCH_EXYNOS5440: > data->tmu_initialize = exynos5440_tmu_initialize; > data->tmu_control = exynos5440_tmu_control; > @@ -1172,7 +1350,9 @@ static int exynos_tmu_probe(struct platform_device > *pdev) > goto err_clk_sec; > } > > - if (data->soc == SOC_ARCH_EXYNOS7) { > + switch (data->soc) { > + case SOC_ARCH_EXYNOS5433: > + case SOC_ARCH_EXYNOS7: > data->sclk = devm_clk_get(&pdev->dev, "tmu_sclk"); > if (IS_ERR(data->sclk)) { > dev_err(&pdev->dev, "Failed to get sclk\n"); > @@ -1184,7 +1364,10 @@ static int exynos_tmu_probe(struct platform_device > *pdev) > goto err_clk; > } > } > - } > + break; > + default: > + break; > + }; > > ret = exynos_tmu_initialize(pdev); > if (ret) { > diff --git a/drivers/thermal/samsung/exynos_tmu.h > b/drivers/thermal/samsung/exynos_tmu.h > index 4d71ec6..440c714 100644 > --- a/drivers/thermal/samsung/exynos_tmu.h > +++ b/drivers/thermal/samsung/exynos_tmu.h > @@ -33,6 +33,7 @@ enum soc_type { > SOC_ARCH_EXYNOS5260, > SOC_ARCH_EXYNOS5420, > SOC_ARCH_EXYNOS5420_TRIMINFO, > + SOC_ARCH_EXYNOS5433, > SOC_ARCH_EXYNOS5440, > SOC_ARCH_EXYNOS7, > }; > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
