leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mfd: wm5102: Mark only extant DSP registers volatile

Browse Source 
Since regmap sometimes uses volatile as a proxy for readable simply
having a blanket condition can mark too many registers as readable.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark Brown 2012-12-11 16:51:39 +09:00 committed by Samuel Ortiz
parent 0101e53cbb
commit 025d982079
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/mfd/wm5102-tables.c
View File

@ -1831,9 +1831,6 @@ static bool wm5102_readable_register(struct device *dev, unsigned int reg)
static bool wm5102_volatile_register(struct device *dev, unsigned int reg)
{
if (reg > 0xffff)
return true;
switch (reg) {
case ARIZONA_SOFTWARE_RESET:
case ARIZONA_DEVICE_REVISION:
@ -1878,6 +1875,12 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg)
case ARIZONA_MIC_DETECT_3:
return true;
default:
if ((reg >= 0x100000 && reg < 0x106000) ||
(reg >= 0x180000 && reg < 0x180800) ||
(reg >= 0x190000 && reg < 0x194800) ||
(reg >= 0x1a8000 && reg < 0x1a9800))
return true;
else
return false;
}
}