diff options
Diffstat (limited to 'drivers/thermal')
| -rw-r--r-- | drivers/thermal/samsung/exynos_tmu.c | 26 | ||||
| -rw-r--r-- | drivers/thermal/samsung/exynos_tmu.h | 31 | ||||
| -rw-r--r-- | drivers/thermal/samsung/exynos_tmu_data.c | 6 |
3 files changed, 52 insertions, 11 deletions
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 7f65fe088d24..05b95c6bb95b 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -142,13 +142,15 @@ static int exynos_tmu_initialize(struct platform_device *pdev) mutex_lock(&data->lock); clk_enable(data->clk); - status = readb(data->base + reg->tmu_status); - if (!status) { - ret = -EBUSY; - goto out; + if (TMU_SUPPORTS(pdata, READY_STATUS)) { + status = readb(data->base + reg->tmu_status); + if (!status) { + ret = -EBUSY; + goto out; + } } - if (data->soc == SOC_ARCH_EXYNOS) + if (TMU_SUPPORTS(pdata, TRIM_RELOAD)) __raw_writel(1, data->base + reg->triminfo_ctrl); /* Save trimming info in order to perform calibration */ @@ -287,7 +289,7 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) pdata->trigger_enable[2] << reg->inten_rise2_shift | pdata->trigger_enable[1] << reg->inten_rise1_shift | pdata->trigger_enable[0] << reg->inten_rise0_shift; - if (pdata->threshold_falling) + if (TMU_SUPPORTS(pdata, FALLING_TRIP)) interrupt_en |= interrupt_en << reg->inten_fall0_shift; } else { @@ -329,7 +331,7 @@ static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp) unsigned int val; int ret = -EINVAL; - if (data->soc == SOC_ARCH_EXYNOS4210) + if (!TMU_SUPPORTS(pdata, EMULATION)) goto out; if (temp && temp < MCELSIUS) @@ -343,9 +345,13 @@ static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp) if (temp) { temp /= MCELSIUS; - val = (EXYNOS_EMUL_TIME << reg->emul_time_shift) | - (temp_to_code(data, temp) - << reg->emul_temp_shift) | EXYNOS_EMUL_ENABLE; + if (TMU_SUPPORTS(pdata, EMUL_TIME)) { + val &= ~(EXYNOS_EMUL_TIME_MASK << reg->emul_time_shift); + val |= (EXYNOS_EMUL_TIME << reg->emul_time_shift); + } + val &= ~(EXYNOS_EMUL_DATA_MASK << reg->emul_temp_shift); + val |= (temp_to_code(data, temp) << reg->emul_temp_shift) | + EXYNOS_EMUL_ENABLE; } else { val &= ~EXYNOS_EMUL_ENABLE; } diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h index 53fa7024090a..ff8844f3b99b 100644 --- a/drivers/thermal/samsung/exynos_tmu.h +++ b/drivers/thermal/samsung/exynos_tmu.h @@ -43,6 +43,34 @@ enum soc_type { }; /** + * EXYNOS TMU supported features. + * TMU_SUPPORT_EMULATION - This features is used to set user defined + * temperature to the TMU controller. + * TMU_SUPPORT_MULTI_INST - This features denotes that the soc + * has many instances of TMU. + * TMU_SUPPORT_TRIM_RELOAD - This features shows that trimming can + * be reloaded. + * TMU_SUPPORT_FALLING_TRIP - This features shows that interrupt can + * be registered for falling trips also. + * TMU_SUPPORT_READY_STATUS - This feature tells that the TMU current + * state(active/idle) can be checked. + * TMU_SUPPORT_EMUL_TIME - This features allows to set next temp emulation + * sample time. + * TMU_SUPPORT_SHARED_MEMORY - This feature tells that the different TMU + * sensors shares some common registers. + * TMU_SUPPORT - macro to compare the above features with the supplied. + */ +#define TMU_SUPPORT_EMULATION BIT(0) +#define TMU_SUPPORT_MULTI_INST BIT(1) +#define TMU_SUPPORT_TRIM_RELOAD BIT(2) +#define TMU_SUPPORT_FALLING_TRIP BIT(3) +#define TMU_SUPPORT_READY_STATUS BIT(4) +#define TMU_SUPPORT_EMUL_TIME BIT(5) +#define TMU_SUPPORT_SHARED_MEMORY BIT(6) + +#define TMU_SUPPORTS(a, b) (a->features & TMU_SUPPORT_ ## b) + +/** * struct exynos_tmu_register - register descriptors to access registers and * bitfields. The register validity, offsets and bitfield values may vary * slightly across different exynos SOC's. @@ -222,6 +250,8 @@ struct exynos_tmu_registers { * applicable to only some of the trigger levels. * @registers: Pointer to structure containing all the TMU controller registers * and bitfields shifts and masks. + * @features: a bitfield value indicating the features supported in SOC like + * emulation, multi instance etc * * This structure is required for configuration of exynos_tmu driver. */ @@ -249,6 +279,7 @@ struct exynos_tmu_platform_data { struct freq_clip_table freq_tab[4]; unsigned int freq_tab_count; const struct exynos_tmu_registers *registers; + unsigned int features; }; /** diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index a5c25b4bb0c0..2612b452dafd 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -83,6 +83,7 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = { .freq_tab_count = 2, .type = SOC_ARCH_EXYNOS4210, .registers = &exynos4210_tmu_registers, + .features = TMU_SUPPORT_READY_STATUS, }, }, .tmu_count = 1, @@ -162,7 +163,10 @@ static const struct exynos_tmu_registers exynos5250_tmu_registers = { }, \ .freq_tab_count = 2, \ .type = SOC_ARCH_EXYNOS, \ - .registers = &exynos5250_tmu_registers, + .registers = &exynos5250_tmu_registers, \ + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ + TMU_SUPPORT_EMUL_TIME) struct exynos_tmu_init_data const exynos5250_default_tmu_data = { .tmu_data = { |