Re: [U-Boot] [PATCH v3 08/21] usb: ulpi: Fix compile warning in read/write on 64-bit machines.

On 03/13/2016 10:36 PM, Mateusz Kulikowski wrote:

ulpi_read and ulpi_write are used to read/write registers via ULPI bus. Code generates compilation warnings on 64-bit machines where pointer is cast to u32.

This patch drops all but last 8 bits of register address. It is possible, because addresses on ULPI bus are 6- or 8-bit.

It is not possible (according to ULPI 1.1 spec) to have more than 8-bit addressing.

This patch should not cause regressions as all calls to ulpi_read/write use either structure pointer (@ address 0) or integer offsets cast to pointer - addresses requested are way below 8-bit range.

Signed-off-by: Mateusz Kulikowski mateusz.kulikowski@gmail.com

Acked-by: Marek Vasut marex@denx.de