linux-kernel - [PATCH] ASoC: pcm512x: Remove hardcoding of pll-lock to GPIO4

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Message-Id: <1427145421-5544-1-git-send-email-hm@hmbedded.co.uk>
Date:	Mon, 23 Mar 2015 21:17:01 +0000
From:	Howard Mitchell <hm@...edded.co.uk>
To:	broonie@...nel.org, peda@...ntia.se
Cc:	tiwai@...e.de, lgirdwood@...il.com, perex@...ex.cz,
	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	devicetree@...r.kernel.org, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, Howard Mitchell <hm@...edded.co.uk>
Subject: [PATCH] ASoC: pcm512x: Remove hardcoding of pll-lock to GPIO4

Currently GPIO4 is hardcoded to output the pll-lock signal.
Unfortunately this is after the pll-out GPIO is configured which
is selectable in the device tree. Therefore it is not possible to
use GPIO4 for pll-out. Therefore this patch removes the
configuration of GPIO4.

Signed-off-by: Howard Mitchell <hm@...edded.co.uk>
---
 sound/soc/codecs/pcm512x.c |   19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/sound/soc/codecs/pcm512x.c b/sound/soc/codecs/pcm512x.c
index 8472099..5a30fdd 100644
--- a/sound/soc/codecs/pcm512x.c
+++ b/sound/soc/codecs/pcm512x.c
@@ -1296,25 +1296,6 @@ static int pcm512x_hw_params(struct snd_pcm_substream *substream,
 				ret, pcm512x->pll_out);
 			return ret;
 		}
-
-		gpio = PCM512x_G1OE << (4 - 1);
-		ret = regmap_update_bits(pcm512x->regmap, PCM512x_GPIO_EN,
-					 gpio, gpio);
-		if (ret != 0) {
-			dev_err(codec->dev, "Failed to enable gpio %d: %d\n",
-				4, ret);
-			return ret;
-		}
-
-		gpio = PCM512x_GPIO_OUTPUT_1 + 4 - 1;
-		ret = regmap_update_bits(pcm512x->regmap, gpio,
-					 PCM512x_GxSL, PCM512x_GxSL_PLLLK);
-		if (ret != 0) {
-			dev_err(codec->dev,
-				"Failed to output pll lock on %d: %d\n",
-				ret, 4);
-			return ret;
-		}
 	}
 
 	ret = regmap_update_bits(pcm512x->regmap, PCM512x_SYNCHRONIZE,
-- 
1.7.9.5

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