linux-kernel - [PATCH v2 0/2] PCI: get DMA configuration from parent device

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Date:	Wed, 24 Dec 2014 17:11:37 -0500
From:	Murali Karicheri <m-karicheri2@...com>
To:	<linux@....linux.org.uk>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <arnd@...db.de>,
	<will.deacon@....com>, <grant.likely@...aro.org>,
	<robh+dt@...nel.org>, <devicetree@...r.kernel.org>,
	<bhelgaas@...gle.com>, <linux-pci@...r.kernel.org>
CC:	Murali Karicheri <m-karicheri2@...com>
Subject: [PATCH v2 0/2] PCI: get DMA configuration from parent device

PCI devices on Keystone doesn't have correct dma_pfn_offset set. This patch
add capability to set the dma configuration such as dma-mask, dma_pfn_offset,
and dma ops etc using the information from DT. The prior RFCs and discussions
are available at [1] and [2] below.

[2] : https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg790244.html
[1] : http://www.gossamer-threads.com/lists/linux/kernel/2024591

Change history:
	v2 - update size to coherent_dma_mask + 1 if dma-range info is missing
	   - also check the np for null.
	v1 - updates based on the comments against initial RFC.
	   - Added a helper function to get the OF node of the parent
	   - Added an API in of_pci.c to update DMA configuration of the pci
	     device.

Murali Karicheri (2):
  of/pci: add of_pci_dma_configure() update dma configuration
  PCI: update dma configuration from DT

 drivers/of/of_pci.c    |   73 ++++++++++++++++++++++++++++++++++++++++++++++++
 drivers/pci/probe.c    |    2 ++
 include/linux/of_pci.h |   12 ++++++++
 3 files changed, 87 insertions(+)

-- 
1.7.9.5

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