From patchwork Tue Mar 2 10:15:41 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: manjugk manjugk X-Patchwork-Id: 83165 X-Patchwork-Delegate: tony@atomide.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter.kernel.org (8.14.3/8.14.3) with ESMTP id o229vQIb010562 for ; Tue, 2 Mar 2010 09:57:26 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751663Ab0CBJ50 (ORCPT ); Tue, 2 Mar 2010 04:57:26 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:47466 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751546Ab0CBJ5Z (ORCPT ); Tue, 2 Mar 2010 04:57:25 -0500 Received: from dlep34.itg.ti.com ([157.170.170.115]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id o229vO2a006335 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 2 Mar 2010 03:57:24 -0600 Received: from localhost.localdomain (localhost [127.0.0.1]) by dlep34.itg.ti.com (8.13.7/8.13.7) with ESMTP id o229vH6l007299; Tue, 2 Mar 2010 03:57:18 -0600 (CST) From: Manjunatha GK To: linux-omap@vger.kernel.org Cc: Manjunatha GK , Tony Lindgren , "S, Venkatraman" , Govindraj R Subject: [PATCH] OMAP: DMA: Add API for setting channel dest addr Date: Tue, 2 Mar 2010 15:45:41 +0530 Message-Id: <1267524941-15526-1-git-send-email-manjugk@ti.com> X-Mailer: git-send-email 1.6.0.4 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter.kernel.org [140.211.167.41]); Tue, 02 Mar 2010 09:57:27 +0000 (UTC) diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 2ab224c..9a2a5c4 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -1109,6 +1109,23 @@ dma_addr_t omap_get_dma_dst_pos(int lch) } EXPORT_SYMBOL(omap_get_dma_dst_pos); +/** + * omap_set_dma_dst_pos() - Set DMA channel destination address + * @arg1: lch DMA logical channel number + * @arg2: value Value to write into CDAC register + * + * Writes "value" into the register CPC/CDAC + */ +void omap_set_dma_dst_pos(int lch, int value) +{ + if (cpu_is_omap15xx()) + dma_write(CPC(lch), value); + else + dma_write(CDAC(lcd), value); + +} +EXPORT_SYMBOL(omap_set_dma_dst_pos); + int omap_get_dma_active_status(int lch) { return (dma_read(CCR(lch)) & OMAP_DMA_CCR_EN) != 0; diff --git a/arch/arm/plat-omap/include/plat/dma.h b/arch/arm/plat-omap/include/plat/dma.h index 02232ca..3b6e43e 100644 --- a/arch/arm/plat-omap/include/plat/dma.h +++ b/arch/arm/plat-omap/include/plat/dma.h @@ -509,6 +509,7 @@ extern int omap_set_dma_callback(int lch, void *data); extern dma_addr_t omap_get_dma_src_pos(int lch); extern dma_addr_t omap_get_dma_dst_pos(int lch); +extern void omap_set_dma_dst_pos(int lch, int value); extern void omap_clear_dma(int lch); extern int omap_get_dma_active_status(int lch); extern int omap_dma_running(void);