From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932361Ab3KFKTy (ORCPT ); Wed, 6 Nov 2013 05:19:54 -0500 Received: from mail-ie0-f177.google.com ([209.85.223.177]:34337 "EHLO mail-ie0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756415Ab3KFKQv (ORCPT ); Wed, 6 Nov 2013 05:16:51 -0500 From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: linus.walleij@linaro.org, Lee Jones , Vinod Koul Subject: [PATCH 02/13] dma: ste_dma40: Parse flags property for new 'high priority channel' request Date: Wed, 6 Nov 2013 10:16:14 +0000 Message-Id: <1383732985-18928-3-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1383732985-18928-1-git-send-email-lee.jones@linaro.org> References: <1383732985-18928-1-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is used for MSP (audio) devices which is about to be fully DT:ed. Cc: Vinod Koul Signed-off-by: Lee Jones --- drivers/dma/ste_dma40.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index b8c031b..00a2de9 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -2409,6 +2409,7 @@ static void d40_set_prio_realtime(struct d40_chan *d40c) #define D40_DT_FLAGS_DIR(flags) ((flags >> 1) & 0x1) #define D40_DT_FLAGS_BIG_ENDIAN(flags) ((flags >> 2) & 0x1) #define D40_DT_FLAGS_FIXED_CHAN(flags) ((flags >> 3) & 0x1) +#define D40_DT_FLAGS_HIGH_PRIO(flags) ((flags >> 4) & 0x1) static struct dma_chan *d40_xlate(struct of_phandle_args *dma_spec, struct of_dma *ofdma) @@ -2446,6 +2447,9 @@ static struct dma_chan *d40_xlate(struct of_phandle_args *dma_spec, cfg.use_fixed_channel = true; } + if (D40_DT_FLAGS_HIGH_PRIO(flags)) + cfg.high_priority = true; + return dma_request_channel(cap, stedma40_filter, &cfg); } -- 1.8.1.2