[PATCH 0/5] ARM: dts: rcar2: Configure pull up for GPIO keys

From: Geert Uytterhoeven <geert+renesas@glider.be>
To: Magnus Damm <magnus.damm@gmail.com>
Cc: linux-renesas-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 0/5] ARM: dts: rcar2: Configure pull up for GPIO keys
Date: Fri, 30 Apr 2021 15:10:50 +0200	[thread overview]
Message-ID: <cover.1619785905.git.geert+renesas@glider.be> (raw)

	Hi all,

This patches series follows up on the work started with "[PATCH] ARM:
dts: koelsch: Configure pull-up for SOFT_SW GPIO keys"[1], and
explicitly configures pull-ups for pins used for GPIO keys without
external pull-up resistors on R-Car Gen2 boards, preceded by a small
cleanup.  Currently GPIO keys rely on the initial states of these pins,
which fortunately match the expectations, but it is better to be
explicit.

To actually make a difference, this depends on "[PATCH 00/12] pinctrl:
renesas: Add more bias pinconf support"[2].  Note that it is safe to
apply this series before [2] has landed, as pinctrl_bind_pins() does not
consider -ENOTSUPP a fatal error.

It would be great if people with access to the hardware could do similar
tests like I did on Koelsch[3].

I hope to queue this in renesas-devel for v5.14.

Thanks for your comments!

[1] https://lore.kernel.org/r/20210303132941.3938516-1-geert+renesas@glider.be/
[2] https://lore.kernel.org/r/cover.1619785375.git.geert+renesas@glider.be/	
[3] https://lore.kernel.org/r/20210303132619.3938128-1-geert+renesas@glider.be

Geert Uytterhoeven (5):
  ARM: dts: koelsch: Rename sw2 to keyboard
  ARM: dts: lager: Configure pull-up for SOFT_SW GPIO keys
  ARM: dts: blanche: Configure pull-up for SOFT_SW and SW25 GPIO keys
  ARM: dts: gose: Configure pull-up for SOFT_SW GPIO keys
  ARM: dts: silk: Configure pull-up for SOFT_SW GPIO keys

 arch/arm/boot/dts/r8a7790-lager.dts   |  8 ++++++++
 arch/arm/boot/dts/r8a7791-koelsch.dts |  4 ++--
 arch/arm/boot/dts/r8a7792-blanche.dts |  8 ++++++++
 arch/arm/boot/dts/r8a7793-gose.dts    | 10 +++++++++-
 arch/arm/boot/dts/r8a7794-silk.dts    | 10 +++++++++-
 5 files changed, 36 insertions(+), 4 deletions(-)

-- 
2.25.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds