On 07/29/2014 06:11 PM, Greg KH wrote:
On Tue, Jul 29, 2014 at 05:40:02PM -0700, Guenter Roeck wrote:
Upstream commit: aff008ad813c7cf3cfe7b532e7ba2c526c136f22
Commits 9ec36ca (of/irq: do irq resolution in platform_get_irq)
and ad69674 (of/irq: do irq resolution in platform_get_irq_byname)
change the semantics of platform_get_irq and platform_get_irq_byname
to always rely on devicetree information if devicetree is enabled
and if a devicetree node is attached to the device. The functions
now return an error if the devicetree data does not include interrupt
information, even if the information is available as platform resource
data.
This causes mfd client drivers to fail if the interrupt number is
passed via platform resources. Therefore, if of_irq_get fails, try
platform_get_resource as method of last resort. This restores the
original functionality for drivers depending on platform resources
to get irq information.
Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
Cc: Tony Lindgren <tony@xxxxxxxxxxx>
Cc: Grant Likely <grant.likely@xxxxxxxxxx>
Cc: Grygorii Strashko <grygorii.strashko@xxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
[ Guenter Roeck: backported to 3.15 ]
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/base/platform.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
This should also go to 3.14 and 3.10, right?
Definitely 3.14, as this is where I hit it. 3.10 only if you applied 9ec36ca
to it (or if you plan to apply it). I don't see it there, so at least not yet.
Sorry that I wasn't more specific. git send-email acted up on me and sent
the patch out when I thought it would let me have a look first.
Guenter
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html