1 files changed, 63 insertions, 0 deletions

diff --git a/include/linux/regulator/max1586.h b/include/linux/regulator/max1586.h
new file mode 100644
index 000000000000..44563192bf16
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+++ b/include/linux/regulator/max1586.h
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+/*
+ * max1586.h  --  Voltage regulation for the Maxim 1586
+ *
+ * Copyright (C) 2008 Robert Jarzmik
+ *
+ * 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 REGULATOR_MAX1586
+#define REGULATOR_MAX1586
+
+#include <linux/regulator/machine.h>
+
+#define MAX1586_V3 0
+#define MAX1586_V6 1
+
+/* precalculated values for v3_gain */
+#define MAX1586_GAIN_NO_R24   1000000  /* 700000 .. 1475000 mV */
+#define MAX1586_GAIN_R24_3k32 1051098  /* 735768 .. 1550369 mV */
+#define MAX1586_GAIN_R24_5k11 1078648  /* 755053 .. 1591005 mV */
+#define MAX1586_GAIN_R24_7k5  1115432  /* 780802 .. 1645262 mV */
+
+/**
+ * max1586_subdev_data - regulator data
+ * @id: regulator Id (either MAX1586_V3 or MAX1586_V6)
+ * @name: regulator cute name (example for V3: "vcc_core")
+ * @platform_data: regulator init data (contraints, supplies, ...)
+ */
+struct max1586_subdev_data {
+        int                             id;
+        char                            *name;
+        struct regulator_init_data      *platform_data;
+};
+
+/**
+ * max1586_platform_data - platform data for max1586
+ * @num_subdevs: number of regultors used (may be 1 or 2)
+ * @subdevs: regulator used
+ *           At most, there will be a regulator for V3 and one for V6 voltages.
+ * @v3_gain: gain on the V3 voltage output multiplied by 1e6.
+ *           This can be calculated as ((1 + R24/R25 + R24/185.5kOhm) * 1e6)
+ *           for an external resistor configuration as described in the
+ *           data sheet (R25=100kOhm).
+ */
+struct max1586_platform_data {
+        int num_subdevs;
+        struct max1586_subdev_data *subdevs;
+        int v3_gain;
+};
+
+#endif