From: Tony Lindgren <tony@atomide.com>
To: Mark Brown <broonie@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org
Subject: [PATCH 2/2] regma: Add missing little endian functions
Date: Thu, 15 Sep 2016 13:56:11 -0700 [thread overview]
Message-ID: <20160915205611.14046-3-tony@atomide.com> (raw)
In-Reply-To: <20160915205611.14046-1-tony@atomide.com>
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 <tony@atomide.com>
---
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
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -772,6 +772,9 @@ struct regmap *__regmap_init(struct device *dev,
case REGMAP_ENDIAN_BIG:
map->format.format_reg = regmap_format_16_be;
break;
+ 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;
break;
@@ -791,6 +794,9 @@ struct regmap *__regmap_init(struct device *dev,
case REGMAP_ENDIAN_BIG:
map->format.format_reg = regmap_format_32_be;
break;
+ 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;
break;
@@ -805,6 +811,9 @@ struct regmap *__regmap_init(struct device *dev,
case REGMAP_ENDIAN_BIG:
map->format.format_reg = regmap_format_64_be;
break;
+ 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;
break;
--
2.9.3
next prev parent reply other threads:[~2016-09-15 20:56 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-15 20:56 [PATCH 0/2] Improve regmap support for more exotic devices Tony Lindgren
2016-09-15 20:56 ` [PATCH 1/2] regmap: Allow longer flag masks for read and write Tony Lindgren
2016-09-16 17:39 ` Applied "regmap: Allow longer flag masks for read and write" to the regmap tree Mark Brown
2016-09-15 20:56 ` Tony Lindgren [this message]
2016-09-16 17:39 ` Applied "regmap: Add missing little endian functions" " Mark Brown
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