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Date: Sun, 27 Jan 2013 12:07:24 +0800 From: Mark Brown <broonie@...nsource.wolfsonmicro.com> To: Samuel Ortiz <sameo@...ux.intel.com> Cc: linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com, Mark Brown <broonie@...nsource.wolfsonmicro.com> Subject: [PATCH 02/10] mfd: wm5102: Mark only extant DSP registers volatile 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@...nsource.wolfsonmicro.com> --- drivers/mfd/wm5102-tables.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c index 4a01192..0317d11 100644 --- a/drivers/mfd/wm5102-tables.c +++ b/drivers/mfd/wm5102-tables.c @@ -1837,9 +1837,6 @@ 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: @@ -1884,7 +1881,13 @@ static bool wm5102_volatile_register(struct device *dev, unsigned int reg) case ARIZONA_MIC_DETECT_3: return true; 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; } } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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