From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932917AbbJOBh3 (ORCPT ); Wed, 14 Oct 2015 21:37:29 -0400 Received: from lucky1.263xmail.com ([211.157.147.132]:38761 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753631AbbJOBhY (ORCPT ); Wed, 14 Oct 2015 21:37:24 -0400 X-263anti-spam: KSV:0; X-MAIL-GRAY: 1 X-MAIL-DELIVERY: 0 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 X-RL-SENDER: shawn.lin@rock-chips.com X-FST-TO: vinod.koul@intel.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: shawn.lin@rock-chips.com X-UNIQUE-TAG: <20b2886ec41b9a30554520f1bbcd796e> X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 From: Shawn Lin To: Vinod Koul , Heiko Stuebner , Jaroslav Kysela , Takashi Iwai , Mark Brown Cc: Lars-Peter Clausen , Doug Anderson , Olof Johansson , Sonny Rao , Addy Ke , Boojin Kim , dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, alsa-devel@alsa-project.org, linux-spi@vger.kernel.org, Shawn Lin Subject: [PATCH v6 07/10] DMA: pl330: add max burst for dmaengine Date: Thu, 15 Oct 2015 09:36:14 +0800 Message-Id: <1444872974-2466-1-git-send-email-shawn.lin@rock-chips.com> X-Mailer: git-send-email 1.8.0 In-Reply-To: <1444872865-2169-1-git-send-email-shawn.lin@rock-chips.com> References: <1444872865-2169-1-git-send-email-shawn.lin@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- 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) { -- 2.3.7