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| author | Punit Agrawal <punit.agrawal@arm.com> | 2014-12-09 13:22:01 +0100 |
|---|---|---|
| committer | Eduardo Valentin <edubezval@gmail.com> | 2014-12-10 16:11:00 +0100 |
| commit | a940cb34fed73b2d4809a4575f2981d5927e2c21 (patch) | |
| tree | 79e734bca7507b5e83e781fa48c265cd34cfe847 /drivers/thermal/imx_thermal.c | |
| parent | drivers: thermal: Remove ARCH_HAS_BANDGAP dependency for samsung (diff) | |
| download | linux-a940cb34fed73b2d4809a4575f2981d5927e2c21.tar.xz linux-a940cb34fed73b2d4809a4575f2981d5927e2c21.zip | |
thermal: Fix cdev registration with THERMAL_NO_LIMIT on 64bit
The size of unsigned long varies between 32 and 64 bit systems while
the size of phandle arguments is always 32 bits per parameter.
On 64-bit systems, cooling devices registered via of-thermal apis fail
to bind when the min/max cooling state is specified as
THERMAL_NO_LIMIT (-1UL) as there is a mis-match between the value read
from the device tree (32bit) and the pre-processor define (64bit).
As we're unlikely to need cooling states larger than 32 bits, and for
consistency with the size of phandle arguments, explicitly limit
THERMAL_NO_LIMIT to 32 bits.
Reported-by: Hyungwoo Yang <hwoo.yang@gmail.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Diffstat (limited to 'drivers/thermal/imx_thermal.c')
0 files changed, 0 insertions, 0 deletions