From: Robert Jarzmik <robert.jarzmik@free.fr>
To: Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
Robert Jarzmik <robert.jarzmik@free.fr>,
Ezequiel Garcia <ezequiel.garcia@free-electrons.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
David Woodhouse <dwmw2@infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
Marek Vasut <marek.vasut@gmail.com>,
Richard Weinberger <richard@nod.at>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Arnd Bergmann <arnd@arndb.de>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org,
dmaengine@vger.kernel.org, linux-media@vger.kernel.org,
linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org,
netdev@vger.kernel.org, alsa-devel@alsa-project.org
Subject: [PATCH v2 10/13] dmaengine: pxa: document pxad_param
Date: Thu, 24 May 2018 09:07:00 +0200 [thread overview]
Message-ID: <20180524070703.11901-11-robert.jarzmik@free.fr> (raw)
In-Reply-To: <20180524070703.11901-1-robert.jarzmik@free.fr>
Add some documentation for the pxad_param structure, and describe the
contract behind the minimal required priority of a DMA channel.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
include/linux/dma/pxa-dma.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/include/linux/dma/pxa-dma.h b/include/linux/dma/pxa-dma.h
index e56ec7af4fd7..9fc594f69eff 100644
--- a/include/linux/dma/pxa-dma.h
+++ b/include/linux/dma/pxa-dma.h
@@ -9,6 +9,15 @@ enum pxad_chan_prio {
PXAD_PRIO_LOWEST,
};
+/**
+ * struct pxad_param - dma channel request parameters
+ * @drcmr: requestor line number
+ * @prio: minimal mandatory priority of the channel
+ *
+ * If a requested channel is granted, its priority will be at least @prio,
+ * ie. if PXAD_PRIO_LOW is required, the requested channel will be either
+ * PXAD_PRIO_LOW, PXAD_PRIO_NORMAL or PXAD_PRIO_HIGHEST.
+ */
struct pxad_param {
unsigned int drcmr;
enum pxad_chan_prio prio;
--
2.11.0
next prev parent reply other threads:[~2018-05-24 7:37 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-24 7:06 [PATCH v2 00/13] ARM: pxa: switch to DMA slave maps Robert Jarzmik
2018-05-24 7:06 ` [PATCH v2 01/13] dmaengine: pxa: use a dma slave map Robert Jarzmik
2018-06-25 13:15 ` Applied "dmaengine: pxa: use a dma slave map" to the asoc tree Mark Brown
2018-05-24 7:06 ` [PATCH v2 02/13] ARM: pxa: add dma slave map Robert Jarzmik
2018-05-24 18:11 ` Robert Jarzmik
2018-05-24 7:06 ` [PATCH v2 03/13] mmc: pxamci: remove the dmaengine compat need Robert Jarzmik
2018-06-25 13:15 ` Applied "mmc: pxamci: remove the dmaengine compat need" to the asoc tree Mark Brown
2018-05-24 7:06 ` [PATCH v2 04/13] media: pxa_camera: remove the dmaengine compat need Robert Jarzmik
2018-06-25 13:15 ` Applied "media: pxa_camera: remove the dmaengine compat need" to the asoc tree Mark Brown
2018-05-24 7:06 ` [PATCH v2 05/13] mtd: rawnand: marvell: remove the dmaengine compat need Robert Jarzmik
2018-05-24 9:30 ` Miquel Raynal
2018-05-24 18:07 ` Robert Jarzmik
2018-05-25 6:56 ` Miquel Raynal
2018-05-24 7:06 ` [PATCH v2 06/13] net: smc911x: " Robert Jarzmik
2018-05-24 7:06 ` [PATCH v2 07/13] net: smc91x: " Robert Jarzmik
2018-05-24 7:06 ` [PATCH v2 08/13] ASoC: pxa: " Robert Jarzmik
2018-05-24 13:58 ` Mark Brown
2018-05-25 8:35 ` Daniel Mack
2018-06-29 11:07 ` Applied "ASoC: pxa: remove the dmaengine compat need" to the asoc tree Mark Brown
2018-05-24 7:06 ` [PATCH v2 09/13] ata: pata_pxa: remove the dmaengine compat need Robert Jarzmik
2018-06-25 13:15 ` Applied "ata: pata_pxa: remove the dmaengine compat need" to the asoc tree Mark Brown
2018-05-24 7:07 ` Robert Jarzmik [this message]
2018-05-25 10:59 ` [PATCH v2 10/13] dmaengine: pxa: document pxad_param Vinod
2018-06-25 13:15 ` Applied "dmaengine: pxa: document pxad_param" to the asoc tree Mark Brown
2018-05-24 7:07 ` [PATCH v2 11/13] dmaengine: pxa: make the filter function internal Robert Jarzmik
2018-05-25 10:59 ` Vinod
2018-05-24 7:07 ` [PATCH v2 12/13] ARM: pxa: remove the DMA IO resources Robert Jarzmik
2018-06-25 13:15 ` Applied "ARM: pxa: remove the DMA IO resources" to the asoc tree Mark Brown
2018-05-24 7:07 ` [PATCH v2 13/13] ARM: pxa: change SSP DMA channels allocation Robert Jarzmik
2018-05-25 7:56 ` Daniel Mack
2018-06-25 13:15 ` Applied "ARM: pxa: change SSP DMA channels allocation" to the asoc tree Mark Brown
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