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usb/gadget: add special treatment for PXA cpus 

As PXA cpus suffer from a silicon bug which prevents them
from being compound devices, forbid use_acm=1 for PXAs.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Robert Jarzmik 2011-12-19 10:17:17 +01:00 committed by Sascha Hauer
parent c7dad7bc16
commit 58c2526c9d
1 changed files with 8 additions and 1 deletions
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9
drivers/usb/gadget/serial.c
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@ -179,6 +179,14 @@ static int __init gserial_init(void)
/* We *could* export two configs; that'd be much cleaner...
* but neither of these product IDs was defined that way.
*/
/*
* PXA CPU suffer a silicon bug which prevents them from being a
* compound device, forbiding the ACM configurations.
*/
#ifdef CONFIG_ARCH_PXA2XX
use_acm = 0;
#endif
if (use_acm) {
serial_config_driver.label = "CDC ACM config";
serial_config_driver.bConfigurationValue = 2;
@ -204,4 +212,3 @@ static int __init gserial_init(void)
}
late_initcall(gserial_init);