Thread (8 messages) 8 messages, 3 authors, 2019-09-20

Re: [PATCH 2/2] gpio: iproc-gpio: Handle interrupts for multiple instances

From: Linus Walleij <hidden>
Date: 2019-09-11 09:43:12
Also in: lkml

On Thu, Aug 29, 2019 at 5:52 AM Srinath Mannam
[off-list ref] wrote:
From: Rayagonda Kokatanur <redacted>

When multiple instance of iproc-gpio chips are present, a fix up
message[1] is printed during the probe of second and later instances.

This issue is because driver sharing same irq_chip data structure
among multiple instances of driver.

Fix this by allocating irq_chip data structure per instance of
iproc-gpio.

[1] fix up message addressed by this patch
[  7.862208] gpio gpiochip2: (689d0000.gpio): detected irqchip that
   is shared with multiple gpiochips: please fix the driver.

Fixes: 616043d58a89 ("pinctrl: Rename gpio driver from cygnus to iproc")
Signed-off-by: Rayagonda Kokatanur <redacted>
Patch applied, I had to rewrite it a bit to fit the new code that
set up the irqchip when adding the gpio_chip, please check that
the result works.

Yours,
Linus Walleij

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