From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754269AbaBGLsE (ORCPT ); Fri, 7 Feb 2014 06:48:04 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:41442 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753748AbaBGLr5 (ORCPT ); Fri, 7 Feb 2014 06:47:57 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Laurent Pinchart , Simon Horman , Luis Henriques Subject: [PATCH 3.11 015/233] ARM: shmobile: mackerel: Fix coherent DMA mask Date: Fri, 7 Feb 2014 11:43:54 +0000 Message-Id: <1391773652-25214-16-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1391773652-25214-1-git-send-email-luis.henriques@canonical.com> References: <1391773652-25214-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.11 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.11.10.4 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Laurent Pinchart commit b6328a6b7ba57fc84c38248f6f0e387e1170f1a8 upstream. Commit 4dcfa60071b3d23f0181f27d8519f12e37cefbb9 ("ARM: DMA-API: better handing of DMA masks for coherent allocations") added an additional check to the coherent DMA mask that results in an error when the mask is larger than what dma_addr_t can address. Set the LCDC coherent DMA mask to DMA_BIT_MASK(32) instead of ~0 to fix the problem. Signed-off-by: Laurent Pinchart Signed-off-by: Simon Horman Signed-off-by: Luis Henriques --- arch/arm/mach-shmobile/board-mackerel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index 85f51a8..07ef12a 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -421,7 +421,7 @@ static struct platform_device lcdc_device = { .resource = lcdc_resources, .dev = { .platform_data = &lcdc_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; @@ -497,7 +497,7 @@ static struct platform_device hdmi_lcdc_device = { .id = 1, .dev = { .platform_data = &hdmi_lcdc_info, - .coherent_dma_mask = ~0, + .coherent_dma_mask = DMA_BIT_MASK(32), }, }; -- 1.8.3.2