Re: [PATCH 0/3] Add 'external mode' for GPIO-based FSI master
From: Joel Stanley
Date: Mon Sep 04 2017 - 02:55:38 EST
Hi Jeremy,
On Mon, Jun 19, 2017 at 6:56 PM, Jeremy Kerr <jk@xxxxxxxxxx> wrote:
> This series (on top of current char-misc-next) implements "external
> mode" (ie, support for FSI debug devices) for the GPIO-based FSI master
> driver.
>
> We implement this control in the GPIO master driver, as it has the
> mapping of raw GPIO pins to fsi control signals, and provides a
> mechanism for the kernel to retain exclusive access to those GPIOs.
I just noticed that this didn't get applied. I assume it's because we
forgot to cc Greg.
I have a v2 of some of the patches in my inbox; we should re-send that
v2. It may make sense to merge in some of the latter changes we have
in the openbmc tree first.
Cheers,
Joel
> ---
> Jeremy Kerr (3):
> fsi: Add fsi_master_rescan()
> fsi/master-gpio: Add locking around gpio operations during break &
> link enable
> fsi/master-gpio: Add external mode
>
> .../ABI/testing/sysfs-driver-fsi-master-gpio | 10 +++
> drivers/fsi/fsi-core.c | 9 ++-
> drivers/fsi/fsi-master-gpio.c | 85 +++++++++++++++++++++-
> drivers/fsi/fsi-master.h | 2 +
> 4 files changed, 102 insertions(+), 4 deletions(-)
> create mode 100644 Documentation/ABI/testing/sysfs-driver-fsi-master-gpio
>
> --
> 2.7.4
>