From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932489AbbLNUs7 (ORCPT ); Mon, 14 Dec 2015 15:48:59 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:39588 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932243AbbLNUsa (ORCPT ); Mon, 14 Dec 2015 15:48:30 -0500 From: Peter Ujfalusi To: , , CC: , , , , , Subject: [PATCH V03 5/5] dmaengine: omap-dma: Add support for DMA filter mapping to slave devices Date: Mon, 14 Dec 2015 22:47:42 +0200 Message-ID: <1450126062-8063-6-git-send-email-peter.ujfalusi@ti.com> X-Mailer: git-send-email 2.6.4 In-Reply-To: <1450126062-8063-1-git-send-email-peter.ujfalusi@ti.com> References: <1450126062-8063-1-git-send-email-peter.ujfalusi@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for providing device to filter_fn mapping so client drivers can switch to use the dma_request_chan() API. Signed-off-by: Peter Ujfalusi Reviewed-by: Arnd Bergmann --- drivers/dma/omap-dma.c | 4 ++++ include/linux/omap-dma.h | 6 ++++++ 2 files changed, 10 insertions(+) diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c index f86827ac0c8a..9794b073d7d7 100644 --- a/drivers/dma/omap-dma.c +++ b/drivers/dma/omap-dma.c @@ -1153,6 +1153,10 @@ static int omap_dma_probe(struct platform_device *pdev) return rc; } + od->ddev.filter.map = od->plat->slave_map; + od->ddev.filter.mapcnt = od->plat->slavecnt; + od->ddev.filter.fn = omap_dma_filter_fn; + rc = dma_async_device_register(&od->ddev); if (rc) { pr_warn("OMAP-DMA: failed to register slave DMA engine device: %d\n", diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h index 88fa8af2b937..1d99b61adc65 100644 --- a/include/linux/omap-dma.h +++ b/include/linux/omap-dma.h @@ -267,6 +267,9 @@ struct omap_dma_reg { u8 type; }; +#define SDMA_FILTER_PARAM(hw_req) ((int[]) { (hw_req) }) +struct dma_slave_map; + /* System DMA platform data structure */ struct omap_system_dma_plat_info { const struct omap_dma_reg *reg_map; @@ -278,6 +281,9 @@ struct omap_system_dma_plat_info { void (*clear_dma)(int lch); void (*dma_write)(u32 val, int reg, int lch); u32 (*dma_read)(int reg, int lch); + + const struct dma_slave_map *slave_map; + int slavecnt; }; #ifdef CONFIG_ARCH_OMAP2PLUS -- 2.6.4