Re: [U-Boot] [PATCH 1/3] Add support for PCA953x I2C gpio devices

Dear Peter Tyser,

In message 1224800639-31350-2-git-send-email-ptyser@xes-inc.com you wrote:

Initial support for NXP's 4 and 8 bit I2C gpio expanders (eg pca9537, pca9557, etc). The CONFIG_PCA953X define enables support for the devices while the CONFIG_CMD_PCA953X define enables the pca953x command.

I'm not sure if we need such a detailed level of access to these chips. We already have a couple of similar I/O expanders in some boards, for example implemente in some PICs. See for example the "pic read" / "pic write" conde in board/lwmon/lwmon.c etc.

I think we should generalize this - and more than read / write isn't really needed, or is it?

Best regards,

Wolfgang Denk