File linux-2.6-ASoC-omap-RX-51-Workaround-aic34b_dummy-to-work-with.patch of Package kernel-adaptation-n900

From f64893219f845505de3f54286b66681ede60783f Mon Sep 17 00:00:00 2001
From: ext Jarkko Nikula <jhnikula@gmail.com>
Date: Fri, 18 Feb 2011 10:36:44 +0100
Subject: [PATCH 1/2] ASoC: omap: RX-51: Workaround aic34b_dummy to work with recent aic3x changes

Recent tlv320aic3x changes started to use supply regulators dynamically
and the codec is unpowered when idle. This has side effect to aic34b_dummy
so that the chip test in aic34b_dummy_probe fails because the codec is
unpowered at probing time.

Workaround the problem by not testing the chip existence in aic34b_dummy_probe.
Better fix would be to add regulator support to aic34b_dummy but it's not
worth of effort as the aic34b_dummy does always direct register writes
(i.e. no caching) and the codec B part is accessed only when A part is
powered.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
---
 sound/soc/omap/aic34b_dummy.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/sound/soc/omap/aic34b_dummy.c b/sound/soc/omap/aic34b_dummy.c
index bace5fc..7ad70b0 100644
--- a/sound/soc/omap/aic34b_dummy.c
+++ b/sound/soc/omap/aic34b_dummy.c
@@ -211,10 +211,6 @@ EXPORT_SYMBOL_GPL(aic34b_add_controls);
 static int aic34b_dummy_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
-	if (aic34b_read(client, AIC3X_PLL_PROGA_REG) != 0x10) {
-		/* Chip not present */
-		return -ENODEV;
-	}
 	aic34b_client = client;
 
 	return 0;
-- 
1.7.0.4