Subject: Re: [PATCH 2/2] i2c: MPC8349E-mITX Power Management and GPIO expander driver

From: Anton Vorontsov <[email-masked]>
Date: Fri, 10 Oct 2008 18:45:45 +0400

On Fri, Oct 10, 2008 at 09:22:02AM -0500, Kumar Gala wrote:
>
> On Sep 23, 2008, at 9:13 AM, Anton Vorontsov wrote:
>
>> On MPC8349E-mITX, MPC8315E-RDB and MPC837x-RDB boards there is a
>> Freescale MC9S08QG8 (MCU) chip with the custom firmware
>> pre-programmed. The chip is used to power-off the board by the
>> software, and to control some GPIO pins.
>>
>> Signed-off-by: Anton Vorontsov <[email-masked]>
>> ---
>> drivers/i2c/chips/Kconfig            |   11 ++
>> drivers/i2c/chips/Makefile           |    1 +
>> drivers/i2c/chips/mcu_mpc8349emitx.c |  209 +++++++++++++++++++++++++ 
>> +++++++++
>> 3 files changed, 221 insertions(+), 0 deletions(-)
>> create mode 100644 drivers/i2c/chips/mcu_mpc8349emitx.c
>
> is the plan to connect ppc_md.machine_shutdown() with this?

You mean poweroff? It's already connected.

+       /* XXX: this is potentially racy, but there is no lock for ppc_md */
+       if (!ppc_md.power_off) {
+               glob_mcu = mcu;
+               ppc_md.power_off = mcu_power_off;
+               dev_info(&client->dev, "will provide power-off service\n");
+       }

-- 
Anton Vorontsov
email: [email-masked]
irc://irc.freenode.net/bd2