linux-kernel - [PATCH v4 07/10] DMA: pl330: implement dmaengine_get

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Message-Id: <1441501975-13993-1-git-send-email-shawn.lin@rock-chips.com>
Date:	Sun,  6 Sep 2015 09:12:55 +0800
From:	Shawn Lin <shawn.lin@...k-chips.com>
To:	Vinod Koul <vinod.koul@...el.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>, Mark Brown <broonie@...nel.org>
Cc:	Doug Anderson <dianders@...omium.org>,
	Olof Johansson <olofj@...gle.com>,
	Sonny Rao <sonnyrao@...omium.org>,
	Addy Ke <addy.ke@...k-chips.com>, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org, alsa-devel@...a-project.org,
	linux-spi@...r.kernel.org, Shawn Lin <shawn.lin@...k-chips.com>
Subject: [PATCH v4 07/10] DMA: pl330: implement dmaengine_get_quirks hook

By adding this function, slave device can query quirks
from pl330 if they need special settings for dmaengine.

Signed-off-by: Shawn Lin <shawn.lin@...k-chips.com>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None
Changes in v1: None

 drivers/dma/pl330.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 3b9b426..bf01d24 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2156,6 +2156,14 @@ static int pl330_config(struct dma_chan *chan,
 	return 0;
 }
 
+static int pl330_quirks(struct dma_chan *chan)
+{
+	struct dma_pl330_chan *pch = to_pchan(chan);
+	struct pl330_dmac *pl330 = pch->dmac;
+
+	return pl330->quirks;
+}
+
 static int pl330_terminate_all(struct dma_chan *chan)
 {
 	struct dma_pl330_chan *pch = to_pchan(chan);
@@ -2928,6 +2936,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	pd->device_tx_status = pl330_tx_status;
 	pd->device_prep_slave_sg = pl330_prep_slave_sg;
 	pd->device_config = pl330_config;
+	pd->device_get_quirks = pl330_quirks;
 	pd->device_pause = pl330_pause;
 	pd->device_terminate_all = pl330_terminate_all;
 	pd->device_issue_pending = pl330_issue_pending;
-- 
2.3.7


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