hwmon: Add driver for EXYNOS4 TMU

[pandora-kernel.git] / include / linux / platform_data / exynos4_tmu.h

diff --git a/include/linux/platform_data/exynos4_tmu.h b/include/linux/platform_data/exynos4_tmu.h
new file mode 100644 (file)
index 0000000..39e038c
--- /dev/null
+++ b/include/linux/platform_data/exynos4_tmu.h
@@ -0,0 +1,83 @@
+/*
+ * exynos4_tmu.h - Samsung EXYNOS4 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_EXYNOS4_TMU_H
+#define _LINUX_EXYNOS4_TMU_H
+
+enum calibration_type {
+       TYPE_ONE_POINT_TRIMMING,
+       TYPE_TWO_POINT_TRIMMING,
+       TYPE_NONE,
+};
+
+/**
+ * struct exynos4_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
+ * @cal_type: calibration type for temperature
+ *
+ * This structure is required for configuration of exynos4_tmu driver.
+ */
+struct exynos4_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;
+
+       enum calibration_type cal_type;
+};
+#endif /* _LINUX_EXYNOS4_TMU_H */