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From: Jiada Wang <jiada_wang@mentor.com>
To: <horms@verge.net.au>, <magnus.damm@gmail.com>,
	<robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<lgirdwood@gmail.com>, <broonie@kernel.org>, <perex@perex.cz>,
	<tiwai@suse.com>, <kuninori.morimoto.gx@renesas.com>,
	<geert@linux-m68k.org>
Cc: <linux-renesas-soc@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <alsa-devel@alsa-project.org>,
	<jiada_wang@mentor.com>
Subject: [PATCH 5/5] ASoC: rsnd: dma: use extended audio dmac registers when available
Date: Wed, 13 Mar 2019 14:58:11 +0900	[thread overview]
Message-ID: <20190313055811.26135-1-jiada_wang@mentor.com> (raw)

Some of SoCs have both basic and extended dmac registers set
basic set only supports busif0 ~ busif3, in order to use
busif4 ~ busif7, extended audio dmac registers need to be used.

This patch changes to use extended dmac registers set when it is
available in device-tree.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
---
 sound/soc/sh/rcar/dma.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index 0324a5c39619..905502ccedba 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -830,7 +830,10 @@ int rsnd_dma_probe(struct rsnd_priv *priv)
 	/*
 	 * for Gen2 or later
 	 */
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "audmapp");
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "extaudmapp");
+	if (!res)
+		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+						   "audmapp");
 	dmac = devm_kzalloc(dev, sizeof(*dmac), GFP_KERNEL);
 	if (!dmac || !res) {
 		dev_err(dev, "dma allocate failed\n");
-- 
2.19.2


             reply	other threads:[~2019-03-13  5:58 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-13  5:58 Jiada Wang [this message]
2019-03-13  6:23 ` [PATCH 5/5] ASoC: rsnd: dma: use extended audio dmac registers when available Kuninori Morimoto
2019-03-13  6:33   ` Kuninori Morimoto
2019-03-13  6:36     ` Jiada Wang
2019-03-13  6:34   ` Jiada Wang
2019-03-13  6:57     ` Kuninori Morimoto
2019-03-13  8:52       ` Geert Uytterhoeven

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