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authorAnuj Aggarwal <anuj.aggarwal@ti.com>2010-07-12 17:54:06 +0530
committerLiam Girdwood <lrg@slimlogic.co.uk>2010-07-28 15:09:26 +0100
commit7d14831e21060fbfbfe8453460ac19205f4ce1c2 (patch)
treef62423f7c13f9cfe1b555638dda8ab17fbca4777 /include
parente9a1c5129de1caf4526b8df5f200ff628b2ffab4 (diff)
downloadlinux-2.6.34-ux500-7d14831e21060fbfbfe8453460ac19205f4ce1c2.tar.gz
regulator: tps6507x: allow driver to use DEFDCDC{2,3}_HIGH register
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> In TPS6507x, depending on the status of DEFDCDC{2,3} pin either DEFDCDC{2,3}_LOW or DEFDCDC{2,3}_HIGH register needs to be read or programmed to change the output voltage. The current driver assumes DEFDCDC{2,3} pins are always tied low and thus operates only on DEFDCDC{2,3}_LOW register. This need not always be the case (as is found on OMAP-L138 EVM). Unfortunately, software cannot read the status of DEFDCDC{2,3} pins. So, this information is passed through platform data depending on how the board is wired. Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/regulator/tps6507x.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/regulator/tps6507x.h b/include/linux/regulator/tps6507x.h
new file mode 100644
index 00000000000..4892f591bab
--- /dev/null
+++ b/include/linux/regulator/tps6507x.h
@@ -0,0 +1,32 @@
+/*
+ * tps6507x.h -- Voltage regulation for the Texas Instruments TPS6507X
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation
+ *
+ * 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_TPS6507X
+#define REGULATOR_TPS6507X
+
+/**
+ * tps6507x_reg_platform_data - platform data for tps6507x
+ * @defdcdc_default: Defines whether DCDC high or the low register controls
+ * output voltage by default. Valid for DCDC2 and DCDC3 outputs only.
+ */
+struct tps6507x_reg_platform_data {
+ bool defdcdc_default;
+};
+
+#endif