From: sameo@linux.intel.com (Samuel Ortiz)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 03/15] mfd: Make MFD core code Device Tree and IRQ domain aware
Date: Fri, 29 Jun 2012 16:55:03 +0200 [thread overview]
Message-ID: <20120629145503.GF22806@sortiz-mobl> (raw)
In-Reply-To: <1340197011-5435-4-git-send-email-lee.jones@linaro.org>
Hi Lee,
On Wed, Jun 20, 2012 at 01:56:39PM +0100, Lee Jones wrote:
> During Device Tree enablement of the ab8500 and db8500-prcmu drivers,
> a decision was made to omit registration through the MFD API and use
> Device Tree directly. However, because MFD devices have a different
> address space and the ab8500 and db8500 both use I2C to communicate,
> this causes issues with address translation during execution of
> of_platform_populate(). So the solution is to make the MFD core aware
> of Device Tree and have it assign the correct node pointers instead.
>
> To make this work the MFD core also needs to be awere of IRQ domains,
> as Device Tree insists on IRQ domain compatibility. So, instead of
> providing an irq-base via platform code, in the DT case we simply
> look up the IRQ domain and map to the correct virtual IRQ.
>
> Cc: Samuel Ortiz <sameo@linux.intel.com>
> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> ---
> drivers/mfd/mfd-core.c | 31 +++++++++++++++++++++++++++----
> include/linux/mfd/core.h | 1 +
> 2 files changed, 28 insertions(+), 4 deletions(-)
Applied, after changing the code style a bit to make it more readable.
Could you please provide me with a follow up patch for documenting the
of_compatible MFD cell field, please ?
Cheers,
Samuel.
--
Intel Open Source Technology Centre
http://oss.intel.com/
next prev parent reply other threads:[~2012-06-29 14:55 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-20 12:56 [PATCH 00/15] Device Tree related re-works and clean-ups Lee Jones
2012-06-20 12:56 ` [PATCH 01/15] mfd: Add IRQ domain support for the AB8500 Lee Jones
2012-06-29 14:51 ` Samuel Ortiz
2012-06-20 12:56 ` [PATCH 02/15] mfd: Generically describe interactions with the DB8500 PRCMU Lee Jones
2012-06-29 14:53 ` Samuel Ortiz
2012-06-20 12:56 ` [PATCH 03/15] mfd: Make MFD core code Device Tree and IRQ domain aware Lee Jones
2012-06-29 14:55 ` Samuel Ortiz [this message]
2012-06-29 14:52 ` Lee Jones
2012-06-29 18:49 ` Samuel Ortiz
2012-07-02 9:57 ` Lee Jones
2012-07-02 15:01 ` Samuel Ortiz
2012-06-20 12:56 ` [PATCH 04/15] mfd: ab8500: Register devices using the newly DT:ed MFD API Lee Jones
2012-06-29 15:09 ` Samuel Ortiz
2012-06-29 16:04 ` Lee Jones
2012-06-29 18:50 ` Samuel Ortiz
2012-07-02 10:03 ` Lee Jones
2012-07-02 15:14 ` Samuel Ortiz
2012-07-04 15:29 ` Lee Jones
2012-06-20 12:56 ` [PATCH 05/15] mfd: db8500-prcmu: " Lee Jones
2012-06-29 15:11 ` Samuel Ortiz
2012-06-20 12:56 ` [PATCH 06/15] mfd: Register the ab8500 from db8500-prcmu using the " Lee Jones
2012-06-29 15:15 ` Samuel Ortiz
2012-06-20 12:56 ` [PATCH 07/15] i2c: Add Device Tree support to the Nomadik I2C driver Lee Jones
2012-06-20 19:30 ` Linus Walleij
2012-06-21 6:47 ` Srinidhi Kasagar
2012-06-20 12:56 ` [PATCH 08/15] regulator: Stop initialising AB8500's registers during bring-up Lee Jones
2012-06-20 13:08 ` Mark Brown
2012-06-20 13:19 ` Lee Jones
2012-06-20 13:26 ` Mark Brown
2012-06-20 12:56 ` [PATCH 09/15] pinctrl: pinctrl-nomadik: Fix possible memory leak Lee Jones
2012-06-20 12:56 ` [PATCH 10/15] pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes Lee Jones
2012-06-20 12:56 ` [PATCH 11/15] ARM: ux500: Remove AB8500 regulator register initialisation information Lee Jones
2012-06-20 12:56 ` [PATCH 12/15] ARM: ux500: Ensure vendor specific properties have the vendor's identifier Lee Jones
2012-06-20 12:56 ` [PATCH 13/15] ARM: ux500: Remove temporary snowball_of_platform_devs enablement structure Lee Jones
2012-06-20 12:56 ` [PATCH 14/15] ARM: ux500: Remove PMU platform registration when booting with DT Lee Jones
2012-06-20 12:56 ` [PATCH 15/15] ARM: perf: handle muxed CPU IRQ lines Lee Jones
2012-06-20 13:28 ` Will Deacon
2012-06-20 13:44 ` Lee Jones
2012-06-20 14:01 ` Will Deacon
2012-06-20 14:13 ` Lee Jones
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