From: Robert Jarzmik <robert.jarzmik@free.fr>
To: barebox@lists.infradead.org
Subject: [PATCH] usb/gadget: add special treatment for PXA cpus
Date: Mon, 19 Dec 2011 10:17:17 +0100 [thread overview]
Message-ID: <1324286241-23083-1-git-send-email-robert.jarzmik@free.fr> (raw)
As PXA cpus suffer from a silicon bug which prevents them
from being compound devices, forbid use_acm=1 for PXAs.
---
drivers/usb/gadget/serial.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index f6a712b..8ba9ab5 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -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);
-
--
1.7.5.4
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next reply other threads:[~2011-12-19 9:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-19 9:17 Robert Jarzmik [this message]
2011-12-19 9:17 ` [PATCH] drivers/mci: pxa writedata timeout Robert Jarzmik
2011-12-19 9:17 ` [PATCH] drivers/mci: pxa read data performance boost Robert Jarzmik
2011-12-19 9:17 ` [PATCH] commands: add hexdump command Robert Jarzmik
2011-12-19 11:29 ` Antony Pavlov
2011-12-19 12:15 ` Robert Jarzmik
2011-12-19 9:17 ` [PATCH] arch/arm: mmu: add map_io_range() Robert Jarzmik
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