From: Vinod Koul <vinod.koul@intel.com>
To: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org
Subject: Re: [PATCH 4/4] dmaengine: pxa_dma: fix the maximum requestor line
Date: Mon, 15 Feb 2016 22:05:24 +0530 [thread overview]
Message-ID: <20160215163524.GI19598@localhost> (raw)
In-Reply-To: <1455225798-9510-5-git-send-email-robert.jarzmik@free.fr>
On Thu, Feb 11, 2016 at 10:23:18PM +0100, Robert Jarzmik wrote:
> @@ -1399,13 +1405,17 @@ static int pxad_probe(struct platform_device *op)
> return PTR_ERR(pdev->base);
>
> of_id = of_match_device(pxad_dt_ids, &op->dev);
> - if (of_id)
> + if (of_id) {
> of_property_read_u32(op->dev.of_node, "#dma-channels",
> &dma_channels);
> - else if (pdata && pdata->dma_channels)
> + of_property_read_u32(op->dev.of_node, "#requestors",
> + &nb_requestors);
I think we should check the return value here. This might be err in case
when we have older DT on platform, but still should work with default in
that case
> + } else if (pdata && pdata->dma_channels) {
> dma_channels = pdata->dma_channels;
> - else
> + nb_requestors = pdata->nb_requestors;
> + } else {
> dma_channels = 32; /* default 32 channel */
> + }
--
~Vinod
next prev parent reply other threads:[~2016-02-15 16:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-11 21:23 [PATCH 0/4] Fix pxa dma requestor lines Robert Jarzmik
2016-02-11 21:23 ` [PATCH 1/4] dma: mmp_pdma: Add the #requestors DT property documentation Robert Jarzmik
2016-02-11 21:59 ` Arnd Bergmann
2016-02-12 20:55 ` Robert Jarzmik
2016-02-11 21:23 ` [PATCH 2/4] dmaengine: mmp-pdma: add number of requestors Robert Jarzmik
2016-02-11 21:23 ` [PATCH 3/4] ARM: pxa: add the number of DMA requestor lines Robert Jarzmik
2016-02-11 21:23 ` [PATCH 4/4] dmaengine: pxa_dma: fix the maximum requestor line Robert Jarzmik
2016-02-15 16:35 ` Vinod Koul [this message]
2016-02-15 17:24 ` Robert Jarzmik
2016-02-15 17:33 ` Vinod Koul
2016-02-15 18:22 ` Robert Jarzmik
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