Re: [PATCH 2/5] pinctrl: meson: Add support to set direction with a secure monitor call

From: Martin Blumenstingl
Date: Wed Aug 01 2018 - 16:23:42 EST


Hi Neil,

On Wed, Aug 1, 2018 at 12:05 PM Neil Armstrong <narmstrong@xxxxxxxxxxxx> wrote:
>
> The Amlogic Meson GX and AXG SoCs needs to do a Secure Monitor call to
> set the TEST_N pin direction.
> This patch adds a "smc" boolean to the bank structure to differentiate
> the TEST_N bank and call the Secure Monitor in the _input/_output functions.
>
> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
> ---
> drivers/pinctrl/meson/Kconfig | 1 +
> drivers/pinctrl/meson/pinctrl-meson.c | 31 ++++++++++++++++++++++++++-----
> drivers/pinctrl/meson/pinctrl-meson.h | 10 +++++++++-
> 3 files changed, 36 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/pinctrl/meson/Kconfig b/drivers/pinctrl/meson/Kconfig
> index c80951d..1b90470 100644
> --- a/drivers/pinctrl/meson/Kconfig
> +++ b/drivers/pinctrl/meson/Kconfig
> @@ -8,6 +8,7 @@ menuconfig PINCTRL_MESON
> select GPIOLIB
> select OF_GPIO
> select REGMAP_MMIO
> + select MESON_SM
I wonder why PINCTRL_MESON has to select MESON_SM - shouldn't
PINCTRL_MESON_GXBB, PINCTRL_MESON_GXL and PINCTRL_MESON_AXG select it
instead?
selecting MESON_SM is probably no-op on Meson8 and Meson8b (which
don't have the GX secure monitor), but I haven't tested it yet


Regards
Martin