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Diffstat (limited to 'include/linux/platform_data/exynos_thermal.h')
| -rw-r--r-- | include/linux/platform_data/exynos_thermal.h | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/include/linux/platform_data/exynos_thermal.h b/include/linux/platform_data/exynos_thermal.h new file mode 100644 index 000000000000..a7bdb2f63b73 --- /dev/null +++ b/include/linux/platform_data/exynos_thermal.h @@ -0,0 +1,116 @@ +/* + * exynos_thermal.h - Samsung EXYNOS TMU (Thermal Management Unit) + * + * Copyright (C) 2011 Samsung Electronics + * Donggeun Kim <dg77.kim@samsung.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef _LINUX_EXYNOS_THERMAL_H +#define _LINUX_EXYNOS_THERMAL_H +#include <linux/cpu_cooling.h> + +enum calibration_type { + TYPE_ONE_POINT_TRIMMING, + TYPE_TWO_POINT_TRIMMING, + TYPE_NONE, +}; + +enum soc_type { + SOC_ARCH_EXYNOS4210 = 1, + SOC_ARCH_EXYNOS, +}; +/** + * struct freq_clip_table + * @freq_clip_max: maximum frequency allowed for this cooling state. + * @temp_level: Temperature level at which the temperature clipping will + * happen. + * @mask_val: cpumask of the allowed cpu's where the clipping will take place. + * + * This structure is required to be filled and passed to the + * cpufreq_cooling_unregister function. + */ +struct freq_clip_table { + unsigned int freq_clip_max; + unsigned int temp_level; + const struct cpumask *mask_val; +}; + +/** + * struct exynos_tmu_platform_data + * @threshold: basic temperature for generating interrupt + * 25 <= threshold <= 125 [unit: degree Celsius] + * @trigger_levels: array for each interrupt levels + * [unit: degree Celsius] + * 0: temperature for trigger_level0 interrupt + * condition for trigger_level0 interrupt: + * current temperature > threshold + trigger_levels[0] + * 1: temperature for trigger_level1 interrupt + * condition for trigger_level1 interrupt: + * current temperature > threshold + trigger_levels[1] + * 2: temperature for trigger_level2 interrupt + * condition for trigger_level2 interrupt: + * current temperature > threshold + trigger_levels[2] + * 3: temperature for trigger_level3 interrupt + * condition for trigger_level3 interrupt: + * current temperature > threshold + trigger_levels[3] + * @trigger_level0_en: + * 1 = enable trigger_level0 interrupt, + * 0 = disable trigger_level0 interrupt + * @trigger_level1_en: + * 1 = enable trigger_level1 interrupt, + * 0 = disable trigger_level1 interrupt + * @trigger_level2_en: + * 1 = enable trigger_level2 interrupt, + * 0 = disable trigger_level2 interrupt + * @trigger_level3_en: + * 1 = enable trigger_level3 interrupt, + * 0 = disable trigger_level3 interrupt + * @gain: gain of amplifier in the positive-TC generator block + * 0 <= gain <= 15 + * @reference_voltage: reference voltage of amplifier + * in the positive-TC generator block + * 0 <= reference_voltage <= 31 + * @noise_cancel_mode: noise cancellation mode + * 000, 100, 101, 110 and 111 can be different modes + * @type: determines the type of SOC + * @efuse_value: platform defined fuse value + * @cal_type: calibration type for temperature + * @freq_clip_table: Table representing frequency reduction percentage. + * @freq_tab_count: Count of the above table as frequency reduction may + * applicable to only some of the trigger levels. + * + * This structure is required for configuration of exynos_tmu driver. + */ +struct exynos_tmu_platform_data { + u8 threshold; + u8 trigger_levels[4]; + bool trigger_level0_en; + bool trigger_level1_en; + bool trigger_level2_en; + bool trigger_level3_en; + + u8 gain; + u8 reference_voltage; + u8 noise_cancel_mode; + u32 efuse_value; + + enum calibration_type cal_type; + enum soc_type type; + struct freq_clip_table freq_tab[4]; + unsigned int freq_tab_count; +}; +#endif /* _LINUX_EXYNOS_THERMAL_H */ |