linux-kernel - Re: [PATCH 2/2] dma: imx-sdma: Assign a default script number for ROM firmware cases

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Message-ID: <CAOMZO5AY1RaxFUcO0r7=Db8Hp_U6oPHSDke0Y0thhEKi5OGCdQ@mail.gmail.com>
Date:	Wed, 8 Jan 2014 10:03:51 -0200
From:	Fabio Estevam <festevam@...il.com>
To:	Nicolin Chen <Guangyu.Chen@...escale.com>
Cc:	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	Shawn Guo <shawn.guo@...aro.org>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	dmaengine@...r.kernel.org,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/2] dma: imx-sdma: Assign a default script number for ROM
 firmware cases

On Wed, Jan 8, 2014 at 6:45 AM, Nicolin Chen <Guangyu.Chen@...escale.com> wrote:
> i.MX series have inner firmware in its ROM code: when SDMA isn't provided
> any firmware from Kernel or rootfs, the default inner ROM firmware will be
> activated. However the current driver doesn't assign any script number to
> this situation, and those platform running in this case would be broken.
>
> Thus this patch adds a default script number when no external firmware being
> loaded so that people would continue to be able to use basic scripts to run
> their platform without any firmware.
>
> Reported-by: Fabio Estevam <fabio.estevam@...escale.com>
> Signed-off-by: Nicolin Chen <Guangyu.Chen@...escale.com>

Thanks, Nicolin.

This fixes audio playback without additional SDMA firmware:

Tested-by: Fabio Estevam <fabio.estevam@...escale.com>
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