Messages in this thread | | | Date | Mon, 8 Sep 2014 22:21:43 +0100 | From | Mark Brown <> | Subject | Re: [PATCH] RFC: add function for localbus address |
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On Mon, Sep 08, 2014 at 01:22:44PM -0700, Stephen Boyd wrote:
> Where is this described? From the commit text that introduces > IORESOURCE_REG I see:
> "Currently a bunch of I2C/SPI MFD drivers are using IORESOURCE_IO for > register address ranges. Since this causes some confusion due to the > primary use of this resource type for PCI/ISA I/O ports create a new > resource type IORESOURCE_REG."
> And the comment next to the #define says "Register offsets". I don't see > anywhere where it mentions these are CPU addresses. Certainly the > current IORESOURCE_REG users aren't CPU addresses because they're > SPI/I2C device drivers.
Right, the intention was specifically to handle things where IORESOURCE_MEM wasn't appropriate as it wasn't ever going to be memory mapped I/O and should be in a separate address space. [unhandled content-type:application/pgp-signature] | |