The patch

   regmap: Add missing little endian functions

has been applied to the regmap tree at


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>From 55562449032c43b84f839e2fbb84bf1d351d6603 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <>
Date: Thu, 15 Sep 2016 13:56:11 -0700
Subject: [PATCH] regmap: Add missing little endian functions

This with the longer read and write masks allow supporting more
exotic devices. For example a little endian SPI device:

static const struct regmap_config foo_regmap_config = {
        .reg_bits = 16,
        .reg_stride = 4,
        .val_bits = 16,
        .write_flag_mask = 0x8000,
        .reg_format_endian = REGMAP_ENDIAN_LITTLE,
        .val_format_endian = REGMAP_ENDIAN_LITTLE,

Signed-off-by: Tony Lindgren <>
Signed-off-by: Mark Brown <>
 drivers/base/regmap/regmap.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index a6a5236b6c8d..31cfe70e6d53 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -749,6 +749,9 @@ struct regmap *__regmap_init(struct device *dev,
                case REGMAP_ENDIAN_BIG:
                        map->format.format_reg = regmap_format_16_be;
+               case REGMAP_ENDIAN_LITTLE:
+                       map->format.format_reg = regmap_format_16_le;
+                       break;
                case REGMAP_ENDIAN_NATIVE:
                        map->format.format_reg = regmap_format_16_native;
@@ -768,6 +771,9 @@ struct regmap *__regmap_init(struct device *dev,
                case REGMAP_ENDIAN_BIG:
                        map->format.format_reg = regmap_format_32_be;
+               case REGMAP_ENDIAN_LITTLE:
+                       map->format.format_reg = regmap_format_32_le;
+                       break;
                case REGMAP_ENDIAN_NATIVE:
                        map->format.format_reg = regmap_format_32_native;
@@ -782,6 +788,9 @@ struct regmap *__regmap_init(struct device *dev,
                case REGMAP_ENDIAN_BIG:
                        map->format.format_reg = regmap_format_64_be;
+               case REGMAP_ENDIAN_LITTLE:
+                       map->format.format_reg = regmap_format_64_le;
+                       break;
                case REGMAP_ENDIAN_NATIVE:
                        map->format.format_reg = regmap_format_64_native;

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