Re: [PATCH v4] fbdev: sh_mobile_lcdc: use dma_mmap_coherent

Hi Laurent,

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: Re: [PATCH v4] fbdev: sh_mobile_lcdc: use dma_mmap_coherent
Date: Thu, 16 Aug 2012 14:16:32 +0200

Hi Eiraku-san,

On Thursday 16 August 2012 19:13:20 Hideki EIRAKU wrote:

quoted

fb_mmap() implemented in fbmem.c uses smem_start as the physical
address of the frame buffer.  In the sh_mobile_lcdc driver, the
smem_start is a dma_addr_t that is not a physical address when IOMMU is
enabled.  dma_mmap_coherent() maps the address correctly.

Signed-off-by: Hideki EIRAKU <redacted>

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

I will push the patch to v3.7 through my tree.

I'd like to use this patch to test IOMMU implementation of Renesas
IPMMU.  But I could not find it in v3.7-rc8.  Could you please tell me if 
this has already been merged somewhere or not?

-- 
Hideki EIRAKU [off-list ref]