Commit af65e6ce authored Oct 31, 2011 by Axel Lin Committed by Samuel Ortiz Dec 20, 2011

mfd: Set da903x bits if new value is different from the old one



It does not make sense to write new value only when all the bit_mask
bits are zero.
We need to write new value if the bit mask fields of new value is
not equal to old value.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

parent 890c98e3

drivers/mfd/da903x.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -182,7 +182,7 @@ int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask)
		if (ret)
		goto out;

		if ((reg_val & bit_mask) == 0) {
		if ((reg_val & bit_mask) != bit_mask) {
		reg_val \|= bit_mask;
		ret = __da903x_write(chip->client, reg, reg_val);
		}