This patch adds the neccessary register changes and arch information to support Exynos5420 SoCs Exynos5420 has 5 TMU channels one for each CPU 0, 1, 2 and 3 and GPU Also updated the Documentation at Documentation/devicetree/bindings/thermal/exynos-thermal.txt Note: The platform data structure will be handled properly once the driver moves to complete device driver solution. Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@xxxxxxxxxxx> -Changes since v1: 1. modified the platform data structure in order to pass SHARED flag for channels that need sharing of address space. 2. https://lkml.org/lkml/2013/8/1/38 is merged into this patch. As the changes are minimum and can be added here. Changes since v3: a. Rearraged the code alphabetically, make exynso5420 come before exynso5440 b. Reduce code duplication in passing platform data by introducing a common macro Bartlomiej Zolnierkiewicz Thanks for review and suggestions --- .../devicetree/bindings/thermal/exynos-thermal.txt | 39 ++++++++ drivers/thermal/samsung/exynos_tmu.c | 12 ++- drivers/thermal/samsung/exynos_tmu.h | 1 + drivers/thermal/samsung/exynos_tmu_data.c | 99 ++++++++++++++++++++ drivers/thermal/samsung/exynos_tmu_data.h | 7 ++ 5 files changed, 157 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt index 116cca0..c5f9a74 100644 --- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt +++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt @@ -6,6 +6,7 @@ "samsung,exynos4412-tmu" "samsung,exynos4210-tmu" "samsung,exynos5250-tmu" + "samsung,exynos5420-tmu" "samsung,exynos5440-tmu" - interrupt-parent : The phandle for the interrupt controller - reg : Address range of the thermal registers. For soc's which has multiple @@ -13,6 +14,16 @@ interrupt related then 2 set of register has to supplied. First set belongs to each instance of TMU and second set belongs to second set of common TMU registers. + NOTE: On Exynos5420, the TRIMINFO register is misplaced for TMU + channels 2, 3 and 4 + + TRIMINFO at 0x1006c000 contains data for TMU channel 3 + TRIMINFO at 0x100a0000 contains data for TMU channel 4 + TRIMINFO at 0x10068000 contains data for TMU channel 2 + + The misplaced register address is passed through devicetree as the + second base + - interrupts : Should contain interrupt for thermal system - clocks : The main clock for TMU device - clock-names : Thermal system clock name @@ -43,6 +54,34 @@ Example 2): clock-names = "tmu_apbif"; }; +Example 3): (In case of Exynos5420) + /* tmu for CPU2 */ + tmu@10068000 { + compatible = "samsung,exynos5420-tmu"; + reg = <0x10068000 0x100>, <0x1006c000 0x4>; + interrupts = <0 184 0>; + clocks = <&clock 318>; + clock-names = "tmu_apbif"; + }; + + /* tmu for CPU3 */ + tmu@1006c000 { + compatible = "samsung,exynos5420-tmu"; + reg = <0x1006c000 0x100>, <0x100a0000 0x4>; + interrupts = <0 185 0>; + clocks = <&clock 318>; + clock-names = "tmu_apbif"; + }; + + /* tmu for GPU */ + tmu@100a0000 { + compatible = "samsung,exynos5420-tmu"; + reg = <0x100a0000 0x100>, <0x10068000 0x4>; + interrupts = <0 215 0>; + clocks = <&clock 318>; + clock-names = "tmu_apbif"; + }; + Note: For multi-instance tmu each instance should have an alias correctly numbered in "aliases" node. diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 40c4243..852034f 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -186,7 +186,12 @@ static int exynos_tmu_initialize(struct platform_device *pdev) EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data); } } else { - trim_info = readl(data->base + reg->triminfo_data); + /* On exynos5420 the triminfo register is in the shared space */ + if (data->base_second && (data->soc == SOC_ARCH_EXYNOS5420)) + trim_info = readl(data->base_second + + reg->triminfo_data); + else + trim_info = readl(data->base + reg->triminfo_data); } data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK; data->temp_error2 = ((trim_info >> reg->triminfo_85_shift) & @@ -495,6 +500,10 @@ static const struct of_device_id exynos_tmu_match[] = { .data = (void *)EXYNOS5250_TMU_DRV_DATA, }, { + .compatible = "samsung,exynos5420-tmu", + .data = (void *)EXYNOS5420_TMU_DRV_DATA, + }, + { .compatible = "samsung,exynos5440-tmu", .data = (void *)EXYNOS5440_TMU_DRV_DATA, }, @@ -631,6 +640,7 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (pdata->type == SOC_ARCH_EXYNOS || pdata->type == SOC_ARCH_EXYNOS4210 || + pdata->type == SOC_ARCH_EXYNOS5420 || pdata->type == SOC_ARCH_EXYNOS5440) data->soc = pdata->type; else { diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h index ebd2ec1..c2f362f 100644 --- a/drivers/thermal/samsung/exynos_tmu.h +++ b/drivers/thermal/samsung/exynos_tmu.h @@ -42,6 +42,7 @@ enum calibration_mode { enum soc_type { SOC_ARCH_EXYNOS4210 = 1, SOC_ARCH_EXYNOS, + SOC_ARCH_EXYNOS5420, SOC_ARCH_EXYNOS5440, }; diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index 58570d0..8610f12 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -177,6 +177,105 @@ struct exynos_tmu_init_data const exynos5250_default_tmu_data = { }; #endif +#if defined(CONFIG_SOC_EXYNOS5420) +static const struct exynos_tmu_registers exynos5420_tmu_registers = { + .triminfo_data = EXYNOS_TMU_REG_TRIMINFO, + .triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT, + .triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT, + .tmu_ctrl = EXYNOS_TMU_REG_CONTROL, + .buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT, + .buf_vref_sel_mask = EXYNOS_TMU_REF_VOLTAGE_MASK, + .therm_trip_mode_shift = EXYNOS_TMU_TRIP_MODE_SHIFT, + .therm_trip_mode_mask = EXYNOS_TMU_TRIP_MODE_MASK, + .therm_trip_en_shift = EXYNOS_TMU_THERM_TRIP_EN_SHIFT, + .buf_slope_sel_shift = EXYNOS_TMU_BUF_SLOPE_SEL_SHIFT, + .buf_slope_sel_mask = EXYNOS_TMU_BUF_SLOPE_SEL_MASK, + .core_en_shift = EXYNOS_TMU_CORE_EN_SHIFT, + .tmu_status = EXYNOS_TMU_REG_STATUS, + .tmu_cur_temp = EXYNOS_TMU_REG_CURRENT_TEMP, + .threshold_th0 = EXYNOS_THD_TEMP_RISE, + .threshold_th1 = EXYNOS_THD_TEMP_FALL, + .tmu_inten = EXYNOS_TMU_REG_INTEN, + .inten_rise_mask = EXYNOS_TMU_RISE_INT_MASK, + .inten_rise_shift = EXYNOS_TMU_RISE_INT_SHIFT, + .inten_fall_mask = EXYNOS_TMU_FALL_INT_MASK, + .inten_fall_shift = EXYNOS_TMU_FALL_INT_SHIFT, + .inten_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT, + .inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT, + .inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_SHIFT, + /* INTEN_RISE3 Not availble in exynos5420 */ + .inten_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT, + .inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT, + .tmu_intstat = EXYNOS_TMU_REG_INTSTAT, + .tmu_intclear = EXYNOS_TMU_REG_INTCLEAR, + .intclr_fall_shift = EXYNOS_TMU_FALL_INT_SHIFT, + .emul_con = EXYNOS_EMUL_CON, + .emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT, + .emul_time_shift = EXYNOS_EMUL_TIME_SHIFT, + .emul_time_mask = EXYNOS_EMUL_TIME_MASK, +}; + +#define __EXYNOS5420_TMU_DATA \ + .threshold_falling = 10, \ + .trigger_levels[0] = 85, \ + .trigger_levels[1] = 103, \ + .trigger_levels[2] = 110, \ + .trigger_levels[3] = 120, \ + .trigger_enable[0] = true, \ + .trigger_enable[1] = true, \ + .trigger_enable[2] = true, \ + .trigger_enable[3] = false, \ + .trigger_type[0] = THROTTLE_ACTIVE, \ + .trigger_type[1] = THROTTLE_ACTIVE, \ + .trigger_type[2] = SW_TRIP, \ + .trigger_type[3] = HW_TRIP, \ + .max_trigger_level = 4, \ + .gain = 8, \ + .reference_voltage = 16, \ + .noise_cancel_mode = 4, \ + .cal_type = TYPE_ONE_POINT_TRIMMING, \ + .efuse_value = 55, \ + .min_efuse_value = 40, \ + .max_efuse_value = 100, \ + .first_point_trim = 25, \ + .second_point_trim = 85, \ + .default_temp_offset = 50, \ + .freq_tab[0] = { \ + .freq_clip_max = 800 * 1000, \ + .temp_level = 85, \ + }, \ + .freq_tab[1] = { \ + .freq_clip_max = 200 * 1000, \ + .temp_level = 103, \ + }, \ + .freq_tab_count = 2, \ + .type = SOC_ARCH_EXYNOS5420, \ + .registers = &exynos5420_tmu_registers, \ + +#define EXYNOS5420_TMU_DATA \ + __EXYNOS5420_TMU_DATA \ + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ + TMU_SUPPORT_EMUL_TIME) + +#define EXYNOS5420_TMU_DATA_SHARED \ + __EXYNOS5420_TMU_DATA \ + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ + TMU_SUPPORT_EMUL_TIME | TMU_SUPPORT_ADDRESS_MULTIPLE) + +struct exynos_tmu_init_data const exynos5420_default_tmu_data = { + .tmu_data = { + { EXYNOS5420_TMU_DATA }, + { EXYNOS5420_TMU_DATA }, + { EXYNOS5420_TMU_DATA_SHARED }, + { EXYNOS5420_TMU_DATA_SHARED }, + { EXYNOS5420_TMU_DATA_SHARED }, + }, + .tmu_count = 5, +}; +#endif + #if defined(CONFIG_SOC_EXYNOS5440) static const struct exynos_tmu_registers exynos5440_tmu_registers = { .triminfo_data = EXYNOS5440_TMU_S0_7_TRIM, diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h index 8788a87..59e2f33 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.h +++ b/drivers/thermal/samsung/exynos_tmu_data.h @@ -146,6 +146,13 @@ extern struct exynos_tmu_init_data const exynos5250_default_tmu_data; #define EXYNOS5250_TMU_DRV_DATA (NULL) #endif +#if defined(CONFIG_SOC_EXYNOS5420) +extern struct exynos_tmu_init_data const exynos5420_default_tmu_data; +#define EXYNOS5420_TMU_DRV_DATA (&exynos5420_default_tmu_data) +#else +#define EXYNOS5420_TMU_DRV_DATA (NULL) +#endif + #if defined(CONFIG_SOC_EXYNOS5440) extern struct exynos_tmu_init_data const exynos5440_default_tmu_data; #define EXYNOS5440_TMU_DRV_DATA (&exynos5440_default_tmu_data) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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