From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 12/15] spi/s3c64xx: Add support DMA engine API
Date: Sun, 21 Aug 2011 09:46:33 +0100 [thread overview]
Message-ID: <20110821084633.GD12028@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <CAGOxZ53BRa1=Bnb==jNg_dD0XT2pMSPo=QoHF++LnT6r5kO_Mw@mail.gmail.com>
On Tue, Aug 09, 2011 at 09:43:32AM +0530, Alim Akhtar wrote:
> Exactly, spi_s3c64xx.c (including Sound driver) can not be used with
> pl080 and pl330 (DMAENGINE drivers) as it is.
> Recently I was trying to use PL080 DMAENGINE driver, and i was ended
> up using some #ifdef in the spi driver.
> something like
> #ifdef CONFIG_PL080
> sdd->tx_dmac.bus_id = dmatx_res->name;
> sdd->rx_dmac.bus_id = dmarx_res->name;
> #else
> sdd->tx_dmac.bus_id = dmatx_res->start;
> sdd->tx_dmac.bus_id = dmatx_res->start;
> #endif
>
> This is because, Pl080 handle the channel as a char *(name) and pl330
> expect the channel to be enum (a number).
The alternative is that you do as the Primecell drivers do (which was
designed from the outset to be independent of the specific dmaengine),
and pass the DMA filter parameters as pointers via platform data.
next prev parent reply other threads:[~2011-08-21 8:46 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-27 5:31 [PATCH V5 00/15] To use DMA generic APIs for Samsung DMA Boojin Kim
2011-07-27 5:31 ` [PATCH 01/15] DMA: PL330: Add support runtime PM for PL330 DMAC Boojin Kim
2011-07-27 6:14 ` [RFC PATCH] DMA: PL330: Update PL330 DMAC to support runtime PM Chanwoo Choi
2011-07-27 7:31 ` Jassi Brar
2011-07-27 8:53 ` Russell King - ARM Linux
2011-07-27 9:43 ` Chanwoo Choi
2011-07-27 7:43 ` [PATCH 01/15] DMA: PL330: Add support runtime PM for PL330 DMAC Jassi Brar
2011-07-27 5:31 ` [PATCH 02/15] DMA: PL330: Update PL330 DMA API driver Boojin Kim
2011-07-27 5:31 ` [PATCH 03/15] DMA: PL330: Support DMA_SLAVE_CONFIG command Boojin Kim
2011-07-27 5:31 ` [PATCH 04/15] DMA: PL330: Add DMA_CYCLIC capability Boojin Kim
2011-07-27 5:31 ` [PATCH 05/15] ARM: SAMSUNG: Update to use PL330-DMA driver Boojin Kim
2011-07-27 5:31 ` [PATCH 06/15] ARM: SAMSUNG: Add common DMA operations Boojin Kim
2011-07-27 5:31 ` [PATCH 07/15] ARM: EXYNOS4: Use generic DMA PL330 driver Boojin Kim
2011-08-15 9:36 ` Thomas Abraham
2011-08-15 14:15 ` Thomas Abraham
2011-08-21 8:51 ` Russell King - ARM Linux
2011-07-27 5:31 ` [PATCH 08/15] ARM: S5PV210: " Boojin Kim
2011-07-27 5:31 ` [PATCH 09/15] ARM: S5PC100: " Boojin Kim
2011-07-27 5:31 ` [PATCH 10/15] ARM: S5P64X0: " Boojin Kim
2011-07-27 5:31 ` [PATCH 11/15] ARM: SAMSUNG: Remove S3C-PL330-DMA driver Boojin Kim
2011-07-27 5:31 ` [PATCH 12/15] spi/s3c64xx: Add support DMA engine API Boojin Kim
2011-08-08 17:47 ` Jassi Brar
2011-08-08 17:55 ` Heiko Stübner
2011-08-08 18:16 ` Jassi Brar
2011-08-08 18:26 ` Heiko Stübner
2011-08-09 4:13 ` Alim Akhtar
2011-08-19 10:30 ` Alim Akhtar
2011-08-21 8:46 ` Russell King - ARM Linux [this message]
2011-08-25 1:13 ` Alim Akhtar
2011-08-11 7:42 ` Boojin Kim
2011-07-27 5:31 ` [PATCH 13/15] spi/s3c64xx: Merge dma control code Boojin Kim
2011-08-08 18:32 ` Jassi Brar
2011-07-27 5:31 ` [PATCH 14/15] ASoC: Samsung: Update DMA interface Boojin Kim
2011-08-08 19:27 ` Jassi Brar
2011-08-11 10:04 ` Boojin Kim
2011-07-27 5:31 ` [PATCH 15/15] ARM: SAMSUNG: Remove Samsung specific enum type for dma direction Boojin Kim
2011-08-04 16:53 ` [PATCH V5 00/15] To use DMA generic APIs for Samsung DMA Linus Walleij
2011-08-08 16:45 ` Koul, Vinod
2011-08-11 7:26 ` Kukjin Kim
2011-08-11 22:27 ` Koul, Vinod
2011-08-13 4:11 ` Kukjin Kim
2011-08-16 11:01 ` Koul, Vinod
2011-08-19 5:24 ` Kukjin Kim
2011-08-19 13:04 ` Koul, Vinod
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