Hi, I would like to see few minor cleanup changes, please see below:
On Thursday, October 03, 2013 05:31:42 PM Naveen Krishna Ch wrote: > On 4 September 2013 09:53, Naveen Krishna Chatradhi > <ch.nav...@samsung.com> wrote: > > 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.nav...@samsung.com> > > --- > > 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. > > > > .../devicetree/bindings/thermal/exynos-thermal.txt | 39 ++++++ > > drivers/thermal/samsung/exynos_tmu.c | 14 ++- > > drivers/thermal/samsung/exynos_tmu.h | 1 + > > drivers/thermal/samsung/exynos_tmu_data.c | 130 > > ++++++++++++++++++++ > > drivers/thermal/samsung/exynos_tmu_data.h | 7 ++ > > 5 files changed, 189 insertions(+), 2 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt > > b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt > > index 116cca0..d70f2a4 100644 > > --- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt > > +++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt > > @@ -7,12 +7,23 @@ > > "samsung,exynos4210-tmu" > > "samsung,exynos5250-tmu" > > "samsung,exynos5440-tmu" > > + "samsung,exynos5420-tmu" it should come before "samsung,exynos5440-tmu" > > - interrupt-parent : The phandle for the interrupt controller > > - reg : Address range of the thermal registers. For soc's which has > > multiple > > instances of TMU and some registers are shared across all TMU's like > > 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 3a55caf..6d34652 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) & > > @@ -499,6 +504,10 @@ static const struct of_device_id exynos_tmu_match[] = { > > .compatible = "samsung,exynos5440-tmu", > > .data = (void *)EXYNOS5440_TMU_DRV_DATA, > > }, > > + { > > + .compatible = "samsung,exynos5420-tmu", > > + .data = (void *)EXYNOS5420_TMU_DRV_DATA, > > + }, it should come before 5440 entry > > {}, > > }; > > MODULE_DEVICE_TABLE(of, exynos_tmu_match); > > @@ -637,7 +646,8 @@ static int exynos_tmu_probe(struct platform_device > > *pdev) > > > > if (pdata->type == SOC_ARCH_EXYNOS || > > pdata->type == SOC_ARCH_EXYNOS4210 || > > - pdata->type == SOC_ARCH_EXYNOS5440) > > + pdata->type == SOC_ARCH_EXYNOS5440 || > > + pdata->type == SOC_ARCH_EXYNOS5420) please check for 5420 before 5440 > > data->soc = pdata->type; > > else { > > ret = -EINVAL; > > diff --git a/drivers/thermal/samsung/exynos_tmu.h > > b/drivers/thermal/samsung/exynos_tmu.h > > index ebd2ec1..774ab03 100644 > > --- a/drivers/thermal/samsung/exynos_tmu.h > > +++ b/drivers/thermal/samsung/exynos_tmu.h > > @@ -43,6 +43,7 @@ enum soc_type { > > SOC_ARCH_EXYNOS4210 = 1, > > SOC_ARCH_EXYNOS, > > SOC_ARCH_EXYNOS5440, > > + SOC_ARCH_EXYNOS5420, 5420 should come before 5440 > > }; > > > > /** > > diff --git a/drivers/thermal/samsung/exynos_tmu_data.c > > b/drivers/thermal/samsung/exynos_tmu_data.c > > index 58570d0..a6d5cb5 100644 > > --- a/drivers/thermal/samsung/exynos_tmu_data.c > > +++ b/drivers/thermal/samsung/exynos_tmu_data.c > > @@ -177,6 +177,136 @@ 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, \ > > + .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 \ > > + .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, \ > > + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ > > + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS > > | \ > > + TMU_SUPPORT_EMUL_TIME | > > TMU_SUPPORT_ADDRESS_MULTIPLE) EXYNOS5420_TMU_DATA and EXYNOS5420_TMU_DATA_SHARED are identical besides .features content so to avoid code duplication please define __EXYNOS5420_TMU_DATA with all shared entries and just do: #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..3ce94cd 100644 > > --- a/drivers/thermal/samsung/exynos_tmu_data.h > > +++ b/drivers/thermal/samsung/exynos_tmu_data.h > > @@ -153,4 +153,11 @@ extern struct exynos_tmu_init_data const > > exynos5440_default_tmu_data; > > #define EXYNOS5440_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 this should come before 5440 entry > > #endif /*_EXYNOS_TMU_DATA_H*/ > > -- > > 1.7.9.5 > Hello All, > > Amit Daniel, has Acked these patches a while ago > Any other review comments or updates on this patch ?? > > > > > Thanks & Regards, Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics -- 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/
