[U-Boot] [PATCH] drivers/spi: fsl_qspi: fix controller busy check

[Jagan Teki]

On Mon, Jun 24, 2019 at 10:34 PM Fabio Estevam <festevam at gmail.com> wrote:
>
> From: Thomas Schaefer <thomas.schaefer at kontron.com>
>
> During QSPI reads, current is_busy_controller function sporadically
> fails with -ETIMEDOUT due to fixed number of 5 test loops. This patch
> fixes this by using the readl_poll_timeout function with
> 1000 us timeout.

This sounds like two different functionalities into one patch. better
create a timeout fix in one patch and another patch to migrate
read_poll.