usb: atmel_usba_udc: Rework at91sam9rl errata handling

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at91sam9rl SoC has an erratum forcing us to toggle the BIAS on USB
suspend/resume events.

This specific handling is only activated when CONFIG_ARCH_AT91SAM9RL is
set and this option is only set when building a non-DT kernel, which is
problematic since non-DT support for at91sam9rl SoC has been removed.

Rework the toggle_bias implementation to attach it to the "at91sam9rl-udc"
compatible string.

Add new compatible strings to avoid executing at91sam9rl erratum handling
on other SoCs.

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

...

This commit is contained in:

Boris Brezillon 2015-01-06 14:46:58 +01:00 • committed by Felipe Balbi

parent 6f15e2dc71

commit 3280e67536

3 changed files with 52 additions and 36 deletions

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5

Documentation/devicetree/bindings/usb/atmel-usb.txt

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78

drivers/usb/gadget/udc/atmel_usba_udc.c

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5

drivers/usb/gadget/udc/atmel_usba_udc.h

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