linux-kernel - [PATCH] regmap: Use async I/O for patch application

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Date:	Thu, 10 Oct 2013 21:02:10 +0100
From:	Mark Brown <broonie@...nel.org>
To:	linux-kernel@...r.kernel.org
Cc:	linaro-kernel@...ts.linaro.org, Mark Brown <broonie@...aro.org>
Subject: [PATCH] regmap: Use async I/O for patch application

From: Mark Brown <broonie@...aro.org>

Try to speed up patch application a little using async I/O.

Signed-off-by: Mark Brown <broonie@...aro.org>
---
 drivers/base/regmap/regmap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index ccdac61..437f7f6 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2132,6 +2132,7 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
 	bypass = map->cache_bypass;
 
 	map->cache_bypass = true;
+	map->async = true;
 
 	/* Write out first; it's useful to apply even if we fail later. */
 	for (i = 0; i < num_regs; i++) {
@@ -2155,10 +2156,13 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
 	}
 
 out:
+	map->async = false;
 	map->cache_bypass = bypass;
 
 	map->unlock(map->lock_arg);
 
+	regmap_async_complete(map);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(regmap_register_patch);
-- 
1.8.4.rc3

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