All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jagan Teki <jagan@amarulasolutions.com>
To: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Bastien Nocera <hadess@hadess.net>,
	Rob Herring <robh+dt@kernel.org>
Cc: Henrik Rydberg <rydberg@bitmath.org>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org, Mark Rutland <mark.rutland@arm.com>,
	linux-amarula@amarulasolutions.com,
	Michael Trimarchi <michael@amarulasolutions.com>,
	Jagan Teki <jagan@amarulasolutions.com>
Subject: [PATCH v7 1/4] dt-bindings: input: touchscreen: goodix: Document regulator properties
Date: Thu, 21 Mar 2019 13:51:01 +0530	[thread overview]
Message-ID: <20190321082104.2874-2-jagan@amarulasolutions.com> (raw)
In-Reply-To: <20190321082104.2874-1-jagan@amarulasolutions.com>

Goodix CTP controllers support analog, digital and gpio regulator
supplies on relevant controller pin configurations.

Out of which AVDD28 and VDDIO regulators are required in few goodix CTP
chips during power-on sequence.

AVDD22, DVDD12 regulators have no relevant functionality described from
datasheet [1].

So, document both AVDD28, VDDIO regulators into optional properties since
few of the goodix chip do work without these regulator power-on sequence.

[1] GT5663 Datasheet_English_20151106_Rev.01

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/input/touchscreen/goodix.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
index 8cf0b4d38a7e..255673250bbd 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/goodix.txt
@@ -19,6 +19,8 @@ Optional properties:
  - irq-gpios		: GPIO pin used for IRQ. The driver uses the
 			  interrupt gpio pin as output to reset the device.
  - reset-gpios		: GPIO pin used for reset
+ - AVDD28-supply	: Analog power supply regulator on AVDD28 pin
+ - VDDIO-supply		: GPIO power supply regulator on VDDIO pin
  - touchscreen-inverted-x
  - touchscreen-inverted-y
  - touchscreen-size-x
-- 
2.18.0.321.gffc6fa0e3


  reply	other threads:[~2019-03-21  8:21 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-21  8:21 [PATCH v7 0/4] input: touchscreen: Add goodix GT5553 CTP support Jagan Teki
2019-03-21  8:21 ` Jagan Teki [this message]
2019-03-21  8:21 ` [PATCH v7 2/4] Input: goodix - Add regulators suppot Jagan Teki
2019-04-03 23:09   ` Dmitry Torokhov
2019-03-21  8:21 ` [PATCH v7 3/4] dt-bindings: input: touchscreen: goodix: Add GT5663 compatible Jagan Teki
2019-03-21  8:21 ` [PATCH v7 4/4] Input: goodix - Add GT5663 CTP support Jagan Teki
2019-04-03 23:09   ` Dmitry Torokhov
2019-04-02 13:30 ` [PATCH v7 0/4] input: touchscreen: Add goodix GT5553 " Jagan Teki

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190321082104.2874-2-jagan@amarulasolutions.com \
    --to=jagan@amarulasolutions.com \
    --cc=devicetree@vger.kernel.org \
    --cc=dmitry.torokhov@gmail.com \
    --cc=hadess@hadess.net \
    --cc=linux-amarula@amarulasolutions.com \
    --cc=linux-input@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mark.rutland@arm.com \
    --cc=michael@amarulasolutions.com \
    --cc=robh+dt@kernel.org \
    --cc=rydberg@bitmath.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.