Re: [RFC][PATCH 2/2] hwmon: (w83627ehf) Add GPIO port 3 functionality

From: Alejandro
Date: Sat Jan 14 2012 - 17:15:46 EST


Hi Delvare,

On 14-Jan-12 2:18 PM, Jean Delvare wrote:
On Fri, 13 Jan 2012 19:39:56 -0600, Alex Rio wrote:
The w83627ehf chip has 5 GPIO ports, currently none of them is supported.
This patch adds the GPIO port 3 driver with the following functions:
set/get pin values, direction_in/out, set_debounce.
The values are also available to the userspace (if requiered)
in the path /sys/class/gpio by using the export/unexport functions.
Please look at the REVISIT comment, this is the main reason of the RFC,
suggestions will be highly appreciated.

Signed-off-by: Alex Rio<scasbyte@xxxxxxxxx>
---
drivers/hwmon/w83627ehf.c | 188 +++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 188 insertions(+), 0 deletions(-)

This is calling for a MFD driver for these chips. This was proposed in
the past, BTW, but never followed up:
http://lists.lm-sensors.org/pipermail/lm-sensors/2010-February/027795.html

Putting everything in the current driver is not going to be accepted.
It certainly looks pleasant because it's a more simple approach, but
the result would be a complex and unmaintainable driver.


The patch looks great, and it is definitely more maintainable. I'll create a patch for the w83627ehf driver and send it as soon as possible. Should I make the patch for the w83627hf or wait for Rodolfo???

BR, Alex.
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