thermal: samsung: Add TMU support for Exynos5260 SoCs

This patch adds the registers, bit fields and compatible strings
required to support for the 5 TMU channels on Exynos5260.
Signed-off-by: NNaveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: NEduardo Valentin <edubezval@gmail.com>

Documentation/devicetree/bindings/thermal/exynos-thermal.txt

@@ -6,6 +6,7 @@
 	       "samsung,exynos4412-tmu"
 	       "samsung,exynos4210-tmu"
 	       "samsung,exynos5250-tmu"
+	       "samsung,exynos5260-tmu"
 	       "samsung,exynos5420-tmu" for TMU channel 0, 1 on Exynos5420
 	       "samsung,exynos5420-tmu-ext-triminfo" for TMU channels 2, 3 and 4
 			Exynos5420 (Must pass triminfo base and triminfo clock)

drivers/thermal/samsung/exynos_tmu.c

@@ -512,6 +512,10 @@ static const struct of_device_id exynos_tmu_match[] = {
 		.compatible = "samsung,exynos5250-tmu",
 		.data = (void *)EXYNOS5250_TMU_DRV_DATA,
 	},
+	{
+		.compatible = "samsung,exynos5260-tmu",
+		.data = (void *)EXYNOS5260_TMU_DRV_DATA,
+	},
 	{
 		.compatible = "samsung,exynos5420-tmu",
 		.data = (void *)EXYNOS5420_TMU_DRV_DATA,
@@ -674,6 +678,7 @@ static int exynos_tmu_probe(struct platform_device *pdev)
 	if (pdata->type == SOC_ARCH_EXYNOS4210 ||
 	    pdata->type == SOC_ARCH_EXYNOS4412 ||
 	    pdata->type == SOC_ARCH_EXYNOS5250 ||
+	    pdata->type == SOC_ARCH_EXYNOS5260 ||
 	    pdata->type == SOC_ARCH_EXYNOS5420_TRIMINFO ||
 	    pdata->type == SOC_ARCH_EXYNOS5440)
 		data->soc = pdata->type;

drivers/thermal/samsung/exynos_tmu.h

@@ -43,6 +43,7 @@ enum soc_type {
 	SOC_ARCH_EXYNOS4210 = 1,
 	SOC_ARCH_EXYNOS4412,
 	SOC_ARCH_EXYNOS5250,
+	SOC_ARCH_EXYNOS5260,
 	SOC_ARCH_EXYNOS5420_TRIMINFO,
 	SOC_ARCH_EXYNOS5440,
 };
@@ -150,6 +151,7 @@ struct exynos_tmu_registers {
 	u32	triminfo_85_shift;
 
 	u32	triminfo_ctrl;
+	u32	triminfo_ctrl1;
 	u32	triminfo_reload_shift;
 
 	u32	tmu_ctrl;

drivers/thermal/samsung/exynos_tmu_data.c

@@ -194,6 +194,98 @@ struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
 };
 #endif
 
+#if defined(CONFIG_SOC_EXYNOS5260)
+static const struct exynos_tmu_registers exynos5260_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,
+	.tmu_ctrl = EXYNOS_TMU_REG_CONTROL1,
+	.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 = EXYNOS5260_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_rise3_shift = EXYNOS_TMU_INTEN_RISE3_SHIFT,
+	.inten_fall0_shift = EXYNOS_TMU_INTEN_FALL0_SHIFT,
+	.tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT,
+	.tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR,
+	.intclr_fall_shift = EXYNOS5420_TMU_CLEAR_FALL_INT_SHIFT,
+	.intclr_rise_shift = EXYNOS_TMU_RISE_INT_SHIFT,
+	.intclr_rise_mask = EXYNOS5260_TMU_RISE_INT_MASK,
+	.intclr_fall_mask = EXYNOS5260_TMU_FALL_INT_MASK,
+	.emul_con = EXYNOS5260_EMUL_CON,
+	.emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
+	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
+	.emul_time_mask = EXYNOS_EMUL_TIME_MASK,
+};
+
+#define __EXYNOS5260_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, \
+	.registers = &exynos5260_tmu_registers, \
+
+#define EXYNOS5260_TMU_DATA \
+	__EXYNOS5260_TMU_DATA \
+	.type = SOC_ARCH_EXYNOS5260, \
+	.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 exynos5260_default_tmu_data = {
+	.tmu_data = {
+		{ EXYNOS5260_TMU_DATA },
+		{ EXYNOS5260_TMU_DATA },
+		{ EXYNOS5260_TMU_DATA },
+		{ EXYNOS5260_TMU_DATA },
+		{ EXYNOS5260_TMU_DATA },
+	},
+	.tmu_count = 5,
+};
+#endif
+
 #if defined(CONFIG_SOC_EXYNOS5420)
 static const struct exynos_tmu_registers exynos5420_tmu_registers = {
 	.triminfo_data = EXYNOS_TMU_REG_TRIMINFO,

drivers/thermal/samsung/exynos_tmu_data.h

@@ -87,6 +87,7 @@
 #define EXYNOS_TMU_INTEN_FALL0_SHIFT	16
 #define EXYNOS_TMU_INTEN_FALL1_SHIFT	20
 #define EXYNOS_TMU_INTEN_FALL2_SHIFT	24
+#define EXYNOS_TMU_INTEN_FALL3_SHIFT	28
 
 #define EXYNOS_EMUL_TIME	0x57F0
 #define EXYNOS_EMUL_TIME_MASK	0xffff
@@ -97,6 +98,17 @@
 
 #define EXYNOS_MAX_TRIGGER_PER_REG	4
 
+/* Exynos5260 specific */
+#define EXYNOS_TMU_REG_CONTROL1			0x24
+#define EXYNOS5260_TMU_REG_INTEN		0xC0
+#define EXYNOS5260_TMU_REG_INTSTAT		0xC4
+#define EXYNOS5260_TMU_REG_INTCLEAR		0xC8
+#define EXYNOS5260_TMU_CLEAR_RISE_INT		0x1111
+#define EXYNOS5260_TMU_CLEAR_FALL_INT		(0x1111 << 16)
+#define EXYNOS5260_TMU_RISE_INT_MASK		0x1111
+#define EXYNOS5260_TMU_FALL_INT_MASK		0x1111
+#define EXYNOS5260_EMUL_CON			0x100
+
 /* Exynos4412 specific */
 #define EXYNOS4412_MUX_ADDR_VALUE          6
 #define EXYNOS4412_MUX_ADDR_SHIFT          20
@@ -157,6 +169,13 @@ extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
 #define EXYNOS5250_TMU_DRV_DATA (NULL)
 #endif
 
+#if defined(CONFIG_SOC_EXYNOS5260)
+extern struct exynos_tmu_init_data const exynos5260_default_tmu_data;
+#define EXYNOS5260_TMU_DRV_DATA (&exynos5260_default_tmu_data)
+#else
+#define EXYNOS5260_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)