linux-kernel - [PATCH RFC] leds: lm3530: Fix setting pltfm->als

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Message-ID: <1328595786.5274.6.camel@phoenix>
Date:	Tue, 07 Feb 2012 14:23:06 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Shreshtha Kumar Sahu <shreshthakumar.sahu@...ricsson.com>,
	"Milo(Woogyom) Kim" <milo.kim@...com>,
	Richard Purdie <rpurdie@...ys.net>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH RFC] leds: lm3530: Fix setting pltfm->als_vmax

In current code, pltfm->als_vmin is set to LM3530_ALS_WINDOW_mV and 
pltfm->als_vmax is 0. This looks does not make sense.
I think what we want here is setting pltfm->als_vmax to LM3530_ALS_WINDOW_mV.

Both als_vmin and als_vmax local variables will be set to pltfm->als_vmin and
pltfm->als_vmax by a few lines latter.
Thus also remove a redundant assignment for als_vmin and als_vmax in this patch.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
Hi Kim,
I don't have this hardware, I'd appreciate if you can review and test this patch.

Thanks,
Axel
 drivers/leds/leds-lm3530.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c
index 45e6878..e59c166 100644
--- a/drivers/leds/leds-lm3530.c
+++ b/drivers/leds/leds-lm3530.c
@@ -164,8 +164,8 @@ static int lm3530_init_registers(struct lm3530_data *drvdata)
 
 	if (drvdata->mode == LM3530_BL_MODE_ALS) {
 		if (pltfm->als_vmax == 0) {
-			pltfm->als_vmin = als_vmin = 0;
-			pltfm->als_vmin = als_vmax = LM3530_ALS_WINDOW_mV;
+			pltfm->als_vmin = 0;
+			pltfm->als_vmax = LM3530_ALS_WINDOW_mV;
 		}
 
 		als_vmin = pltfm->als_vmin;
-- 
1.7.5.4



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