Messages in this thread | | | Date | Thu, 5 Mar 2015 19:35:32 +0200 | Subject | Using regmap_update_bits to update a write only register | From | Daniel Baluta <> |
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Hi Mark,
Is it possible to use regmap_update_bits to update the values of some bits in a write only register?
I was hoping that by filling the .reg_defaults field of regmap_config the regmap_update_bits function will not try to read the register from hardware.
Instead I think first call of regmap_update_bits will try to read the register from hardware, but this fails with -EIO because the register is marked as write only.
Am I doing something wrong?
thanks, Daniel.
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