linux-kernel - Re: [REGRESSION 3.11-rc] wm8775 9-001b: I2C: cannot write ??? to register R??

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Message-ID: <521C5493.1050407@cisco.com>
Date:	Tue, 27 Aug 2013 09:26:11 +0200
From:	Hans Verkuil <hansverk@...co.com>
To:	Knut Petersen <Knut_Petersen@...nline.de>
CC:	Mauro Carvalho Chehab <mchehab@...radead.org>,
	linux-kernel@...r.kernel.org, linux-media@...r.kernel.org
Subject: Re: [REGRESSION 3.11-rc] wm8775 9-001b: I2C: cannot write ??? to
 register R??

On 08/25/2013 05:45 PM, Knut Petersen wrote:
> Booting current git kernel dmesg shows a set of new  warnings:
> 
>     "wm8775 9-001b: I2C: cannot write ??? to register R??"
> 
> Nevertheless, the hardware seems to work fine.
> 
> This is a new problem, introduced after kernel 3.10.
> If necessary I can bisect.

Can you try this patch? I'm pretty sure this will fix it.

Regards,

	Hans

diff --git a/drivers/media/pci/cx88/cx88.h b/drivers/media/pci/cx88/cx88.h
index afe0eae..28893a6 100644
--- a/drivers/media/pci/cx88/cx88.h
+++ b/drivers/media/pci/cx88/cx88.h
@@ -259,7 +259,7 @@ struct cx88_input {
 };
 
 enum cx88_audio_chip {
-	CX88_AUDIO_WM8775,
+	CX88_AUDIO_WM8775 = 1,
 	CX88_AUDIO_TVAUDIO,
 };
 

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