From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753400AbcAVLIW (ORCPT ); Fri, 22 Jan 2016 06:08:22 -0500 Received: from mail-pa0-f65.google.com ([209.85.220.65]:34382 "EHLO mail-pa0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753369AbcAVLIQ (ORCPT ); Fri, 22 Jan 2016 06:08:16 -0500 From: Caesar Wang To: Heiko Stuebner , Vinod Koul Cc: Sonny Rao , shawn.lin@rock-chips.com, dianders@chromium.org, linux-rockchip@lists.infradead.org, Caesar Wang , Dan Williams , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v7 8/9] dmaengine: pl330: add max burst for dmaengine Date: Fri, 22 Jan 2016 19:06:51 +0800 Message-Id: <1453460812-8498-9-git-send-email-wxt@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1453460812-8498-1-git-send-email-wxt@rock-chips.com> References: <1453460812-8498-1-git-send-email-wxt@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shawn Lin This patch add max burst capability for dmaengine and limit burst capability to one for PL330_QUIRK_BROKEN_NO_FLUSHP Signed-off-by: Shawn Lin Signed-off-by: Caesar Wang --- Changes in v7: - fix the subject. Changes in v6: - remove expose quirks and add max_burst for dmaengine Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None Changes in v1: None drivers/dma/pl330.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 008408d..1b0453b 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -33,6 +33,7 @@ #define PL330_MAX_CHAN 8 #define PL330_MAX_IRQS 32 #define PL330_MAX_PERI 32 +#define PL330_MAX_BURST 16 #define PL330_QUIRK_BROKEN_NO_FLUSHP BIT(0) @@ -2938,6 +2939,8 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id) pd->dst_addr_widths = PL330_DMA_BUSWIDTHS; pd->directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); pd->residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; + pd->max_burst = ((pl330->quirks & PL330_QUIRK_BROKEN_NO_FLUSHP) ? + 1 : PL330_MAX_BURST); ret = dma_async_device_register(pd); if (ret) { -- 1.9.1