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mfd: wm5102: Mark only extant DSP registers volatile

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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
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11
drivers/mfd/wm5102-tables.c
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@ -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) static bool wm5102_volatile_register(struct device *dev, unsigned int reg)
{ {
if (reg > 0xffff)
return true;
switch (reg) { switch (reg) {
case ARIZONA_SOFTWARE_RESET: case ARIZONA_SOFTWARE_RESET:
case ARIZONA_DEVICE_REVISION: case ARIZONA_DEVICE_REVISION:
@ -1878,7 +1875,13 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg)
case ARIZONA_MIC_DETECT_3: case ARIZONA_MIC_DETECT_3:
return true; return true;
default: default:
return false; if ((reg >= 0x100000 && reg < 0x106000) ||
(reg >= 0x180000 && reg < 0x180800) ||
(reg >= 0x190000 && reg < 0x194800) ||
(reg >= 0x1a8000 && reg < 0x1a9800))
return true;
else
return false;
} }
} }