Hi Eric, On 00:40 Sun 02 Aug , Eric Chung wrote: > Dual-voltage GPIO banks default to 3.3V, but when externally supplied > with 1.8V the internal logic must be explicitly reconfigured to match. > > Add the ability to program IO power domain control registers through the > APBC block. These registers require unlocking the AIB Secure Access > Register (ASAR) before every read/write, since configuring a 1.8V domain > while 3.3V is externally supplied can cause back-powering and pin damage. > > Signed-off-by: Eric Chung <[email protected]> > Reviewed-by: Yao Zi <[email protected]> > Looks good, please Reviewed-by: Yixun Lan <[email protected]>
> --- > v7: > - Remove the dependency on SYSCON. > v6: > - Use dev_read_phandle_with_args() to fetch "spacemit,apbc" instead. > v5: > - Use tabs for macro definition alignment. > - Fix the missing power source argument. > v3: > - Add SYSCON dependency in Kconfig. > - Fix not sorted issue in the driver. -- Yixun Lan (dlan)
