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Date:	Wed, 09 Jul 2014 12:00:44 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Chanwoo Choi <cw00.choi@...sung.com>
Cc:	rui.zhang@...el.com, eduardo.valentin@...com,
	kgene.kim@...sung.com, amit.daniel@...sung.com, t.figa@...sung.com,
	kyungmin.park@...sung.com, linux-pm@...r.kernel.org,
	devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Jonghwa Lee <jonghwa3.lee@...sung.com>
Subject: Re: [PATCH] thermal: samsung: Add TMU support for Exynos3250 SoC

On 07/01/2014 09:33 AM, Chanwoo Choi wrote:
> This patch add registers, bit fields and compatible strings for Exynos3250 TMU
> (Thermal Management Unit). Exynos3250 uses the Cortex-A7 dual cores and has
> a target speed of 1.0 GHz.
> 
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> [Add MUX address setting bits by Jonghwa Lee]
> Signed-off-by: Jonghwa Lee <jonghwa3.lee@...sung.com>
> Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
> ---
>  .../devicetree/bindings/thermal/exynos-thermal.txt |  1 +
>  drivers/thermal/samsung/exynos_tmu.c               |  7 +-
>  drivers/thermal/samsung/exynos_tmu.h               |  3 +-
>  drivers/thermal/samsung/exynos_tmu_data.c          | 89 ++++++++++++++++++++++
>  drivers/thermal/samsung/exynos_tmu_data.h          |  7 ++
>  5 files changed, 105 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
> index c949092..ae738f5 100644
> --- a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
> +++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
> @@ -3,6 +3,7 @@
>  ** Required properties:
>  
>  - compatible : One of the following:
> +	       "samsung,exynos3250-tmu"
>  	       "samsung,exynos4412-tmu"
>  	       "samsung,exynos4210-tmu"
>  	       "samsung,exynos5250-tmu"
> diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
> index 2412090..97ebc1e 100644
> --- a/drivers/thermal/samsung/exynos_tmu.c
> +++ b/drivers/thermal/samsung/exynos_tmu.c
> @@ -501,6 +501,10 @@ static irqreturn_t exynos_tmu_irq(int irq, void *id)
>  
>  static const struct of_device_id exynos_tmu_match[] = {
>  	{
> +		.compatible = "samsung,exynos3250-tmu",
> +		.data = (void *)EXYNOS3250_TMU_DRV_DATA,
> +	},
> +	{
>  		.compatible = "samsung,exynos4210-tmu",
>  		.data = (void *)EXYNOS4210_TMU_DRV_DATA,
>  	},
> @@ -675,7 +679,8 @@ static int exynos_tmu_probe(struct platform_device *pdev)
>  		goto err_clk_sec;
>  	}
>  
> -	if (pdata->type == SOC_ARCH_EXYNOS4210 ||
> +	if (pdata->type == SOC_ARCH_EXYNOS3250 ||
> +	    pdata->type == SOC_ARCH_EXYNOS4210 ||
>  	    pdata->type == SOC_ARCH_EXYNOS4412 ||
>  	    pdata->type == SOC_ARCH_EXYNOS5250 ||
>  	    pdata->type == SOC_ARCH_EXYNOS5260 ||
> diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
> index edd08cf..1b4a644 100644
> --- a/drivers/thermal/samsung/exynos_tmu.h
> +++ b/drivers/thermal/samsung/exynos_tmu.h
> @@ -40,7 +40,8 @@ enum calibration_mode {
>  };
>  
>  enum soc_type {
> -	SOC_ARCH_EXYNOS4210 = 1,
> +	SOC_ARCH_EXYNOS3250 = 1,
> +	SOC_ARCH_EXYNOS4210,
>  	SOC_ARCH_EXYNOS4412,
>  	SOC_ARCH_EXYNOS5250,
>  	SOC_ARCH_EXYNOS5260,
> diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
> index c1d81dc..aa8e0de 100644
> --- a/drivers/thermal/samsung/exynos_tmu_data.c
> +++ b/drivers/thermal/samsung/exynos_tmu_data.c
> @@ -90,6 +90,95 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
>  };
>  #endif
>  
> +#if defined(CONFIG_SOC_EXYNOS3250)
> +static const struct exynos_tmu_registers exynos3250_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,
> +	.test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
> +	.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_rise0_shift = EXYNOS_TMU_INTEN_RISE0_SHIFT,
> +	.inten_rise1_shift = EXYNOS_TMU_INTEN_RISE1_SHIFT,
> +	.inten_rise2_shift = EXYNOS_TMU_INTEN_RISE2_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_CLEAR_FALL_INT_SHIFT,
> +	.intclr_rise_shift = EXYNOS_TMU_RISE_INT_SHIFT,
> +	.intclr_rise_mask = EXYNOS_TMU_RISE_INT_MASK,
> +	.intclr_fall_mask = EXYNOS_TMU_FALL_INT_MASK,
> +	.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 EXYNOS3250_TMU_DATA \
> +	.threshold_falling = 10, \
> +	.trigger_levels[0] = 70, \
> +	.trigger_levels[1] = 95, \
> +	.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_TWO_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 = 70, \
> +	}, \
> +	.freq_tab[1] = { \
> +		.freq_clip_max = 400 * 1000, \
> +		.temp_level = 95, \
> +	}, \
> +	.freq_tab_count = 2, \
> +	.registers = &exynos3250_tmu_registers, \
> +	.features = (TMU_SUPPORT_EMULATION | \
> +			TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
> +			TMU_SUPPORT_EMUL_TIME)
> +#endif
> +
> +#if defined(CONFIG_SOC_EXYNOS3250)
> +struct exynos_tmu_init_data const exynos3250_default_tmu_data = {
> +	.tmu_data = {
> +		{
> +			EXYNOS3250_TMU_DATA,
> +			.type = SOC_ARCH_EXYNOS3250,
> +			.test_mux = EXYNOS4412_MUX_ADDR_VALUE,
> +		},
> +	},
> +	.tmu_count = 1,
> +};
> +#endif
> +
>  #if defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
>  static const struct exynos_tmu_registers exynos4412_tmu_registers = {
>  	.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
> diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h
> index d268981..f0979e5 100644
> --- a/drivers/thermal/samsung/exynos_tmu_data.h
> +++ b/drivers/thermal/samsung/exynos_tmu_data.h
> @@ -148,6 +148,13 @@
>  #define EXYNOS5440_TMU_TH_RISE4_SHIFT		24
>  #define EXYNOS5440_EFUSE_SWAP_OFFSET		8
>  
> +#if defined(CONFIG_SOC_EXYNOS3250)
> +extern struct exynos_tmu_init_data const exynos3250_default_tmu_data;
> +#define EXYNOS3250_TMU_DRV_DATA (&exynos3250_default_tmu_data)
> +#else
> +#define EXYNOS3250_TMU_DRV_DATA (NULL)
> +#endif
> +
>  #if defined(CONFIG_CPU_EXYNOS4210)
>  extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
>  #define EXYNOS4210_TMU_DRV_DATA (&exynos4210_default_tmu_data)
> 

Ping.

Best Regards,
Chanwoo Choi
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