This is a note to let you know that I've just added the patch titled
can: janz-ican3: fix support for older hardware revisions
to the 3.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
can-janz-ican3-fix-support-for-older-hardware-revisions.patch
and it can be found in the queue-3.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From e21093ef6fb4cbecdf926102286dbe280ae965db Mon Sep 17 00:00:00 2001
From: "Ira W. Snyder" <[email protected]>
Date: Tue, 11 Sep 2012 15:58:15 -0700
Subject: can: janz-ican3: fix support for older hardware revisions
From: "Ira W. Snyder" <[email protected]>
commit e21093ef6fb4cbecdf926102286dbe280ae965db upstream.
The Revision 1.0 Janz CMOD-IO Carrier Board does not have support for
the reset registers. To support older hardware, the code is changed to
use the hardware reset register on the Janz VMOD-ICAN3 hardware itself.
Signed-off-by: Ira W. Snyder <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/net/can/janz-ican3.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
--- a/drivers/net/can/janz-ican3.c
+++ b/drivers/net/can/janz-ican3.c
@@ -1250,7 +1250,6 @@ static irqreturn_t ican3_irq(int irq, vo
*/
static int ican3_reset_module(struct ican3_dev *mod)
{
- u8 val = 1 << mod->num;
unsigned long start;
u8 runold, runnew;
@@ -1264,8 +1263,7 @@ static int ican3_reset_module(struct ica
runold = ioread8(mod->dpm + TARGET_RUNNING);
/* reset the module */
- iowrite8(val, &mod->ctrl->reset_assert);
- iowrite8(val, &mod->ctrl->reset_deassert);
+ iowrite8(0x00, &mod->dpmctrl->hwreset);
/* wait until the module has finished resetting and is running */
start = jiffies;
Patches currently in stable-queue which might be from [email protected] are
queue-3.4/can-janz-ican3-fix-support-for-older-hardware-revisions.patch
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