On 04/27/2016 09:12 AM, Simon Glass wrote:
Hi Stephen,
On 20 April 2016 at 17:28, Stephen Warren <swar...@wwwdotorg.org> wrote:
From: Stephen Warren <swar...@nvidia.com>
Tegra186's GPIO controller register layout is significantly different from
previous chips, so add a new driver for it. In fact, there are two
different GPIO controllers in Tegra186 that share a similar register
layout, but very different port mapping. This driver covers both.
The DT binding is already present in the Linux kernel (FIXME: Validate
this when submitting).
FIXME: Add DT binding file to this commit.
Signed-off-by: Stephen Warren <swar...@nvidia.com>
---
arch/arm/mach-tegra/Kconfig | 3 +
drivers/gpio/Kconfig | 9 +
drivers/gpio/Makefile | 1 +
drivers/gpio/tegra186_gpio.c | 271 +++++++++++++++++++++++++++++++
drivers/gpio/tegra186_gpio_priv.h | 61 +++++++
include/dt-bindings/gpio/tegra186-gpio.h | 56 +++++++
6 files changed, 401 insertions(+)
create mode 100644 drivers/gpio/tegra186_gpio.c
create mode 100644 drivers/gpio/tegra186_gpio_priv.h
create mode 100644 include/dt-bindings/gpio/tegra186-gpio.h
Reviewed-by: Simon Glass <s...@chromium.org>
My only comment is that tegra186_gpio_get_value() should return 0 or 1.
Thanks, fixed locally. As you may have noticed, I actually sent that
patch out accidentally when I meant to send something else. Still, the
remaining work is in the binding approval and addition to this patch,
not the code you reviewed which I don't expect will change:-)
I haven't seen the device tree, but presumably it is just a single node?
There's one DT node per top-level controller instance. The patch I sent
for that is at:
https://patchwork.ozlabs.org/patch/609516/
[V2] ARM: tegra: add DT binding for Tegra186 GPIO controllers
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