Re: [PATCH 00/11] Convert GPIO Davinci to platform driver

From: Sekhar Nori
Date: Tue Jun 11 2013 - 00:40:19 EST

On 6/10/2013 2:32 PM, Philip, Avinash wrote:
> On Fri, Jun 07, 2013 at 13:40:52, Nori, Sekhar wrote:
>> Hi Avinash,
>> On 5/22/2013 12:40 PM, Philip Avinash wrote:
>>> GPIO Davinci driver converted to platform driver to support DT booting.
>>> In this patch series
>>> - Cleaned gpio Davinci driver code with proper commenting style and appropriate
>>> variable names.
>>> - Create platform driver for GPIO Davinci in da8xx and dm* platforms and removed
>>> gpio related member updation in davinci_soc_info structure.
>>> - DT support added for da850 board and tested on da850 EVM.
>>> - Remove soc_info reference in the gpio davinci driver and start uses
>>> gpiolib interface.
>> Can you please document which platforms this series was tested on and how?
> This series being tested on da850 EVM. Tested by setting VPIF_DOUT[12] as GPIO
> pin [2] and reading GPIO status from GPIO[7,4]
> GPIO[7,4] will reflect the status switch number 8 of the S7 dip switch in DA850 EVM.
> Testing Procedure
> Requirement GPIO SYSFS support [1]
> #echo 116 > /sys/class/gpio/export
> setting GPIO[7,4] as input GPIO
> #echo "in" > /sys/class/gpio/gpio116/direction
> #mount -t debugfs debugfs /sys/kernel/debug
> Reading GPIO pin status
> #cat /sys/kernel/debug/gpio
> #echo 116 > /sys/class/gpio/unexport
> 1. Enable GPIO SYSFS support through menconfig
> --- GPIO Support
> [ ] Debug GPIO calls
> [ ] /sys/class/gpio/... (sysfs interface)
> 2. Patch for pinmux support for GPIO[7,4] is available at

Can you check interrupt generation too since there are significant
changes in that area? You can generate an interrupt using the MMC/SD
card detect pin (inserting an MMC/SD card into the slot should generate
an interrupt). You can also write a new value to any GPIO pin. That will
also trigger an interrupt.

It will be nice if you can test this series on DM365 as well (read/write
as well as interrupt).

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