From: Jun Yan <jerrysteve1101@gmail.com>
To: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-leds@vger.kernel.org
Cc: lee@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, luccafachinetti@gmail.com,
pzalewski@thegoodpenguin.co.uk, daniel@zonque.org,
Jun Yan <jerrysteve1101@gmail.com>
Subject: [PATCH v1 RESEND 2/5] dt-bindings: leds: leds-is31fl32xx: add support for is31fl3236a
Date: Tue, 28 Apr 2026 08:34:09 +0800 [thread overview]
Message-ID: <20260428003412.322032-3-jerrysteve1101@gmail.com> (raw)
In-Reply-To: <20260428003412.322032-1-jerrysteve1101@gmail.com>
Add an additional and optional control property for setting
the output PWM frequency to 22kHz that exists on is31fl3236a.
The default is 3kHz and this option puts the operational frequency
outside of the audible range.
Co-developed-by: Pawel Zalewski <pzalewski@thegoodpenguin.co.uk>
Signed-off-by: Pawel Zalewski <pzalewski@thegoodpenguin.co.uk>
Signed-off-by: Jun Yan <jerrysteve1101@gmail.com>
---
.../bindings/leds/issl,is31fl32xx.yaml | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml b/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml
index ae5736e1b8e4..01284a506e0b 100644
--- a/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml
+++ b/Documentation/devicetree/bindings/leds/issl,is31fl32xx.yaml
@@ -21,6 +21,7 @@ description: |
https://www.lumissil.com/assets/pdf/core/IS31FL3218_DS.pdf
https://www.lumissil.com/assets/pdf/core/IS31FL3235_DS.pdf
https://www.lumissil.com/assets/pdf/core/IS31FL3236_DS.pdf
+ https://www.lumissil.com/assets/pdf/core/IS31FL3236A_DS.pdf
https://www.lumissil.com/assets/pdf/core/IS31FL3293_DS.pdf
properties:
@@ -30,6 +31,7 @@ properties:
- issi,is31fl3218
- issi,is31fl3235
- issi,is31fl3236
+ - issi,is31fl3236a
- issi,is31fl3293
- si-en,sn3216
- si-en,sn3218
@@ -37,6 +39,12 @@ properties:
reg:
maxItems: 1
+ issi,22khz-pwm:
+ type: boolean
+ description:
+ When present, the chip's PWM will operate at ~22kHz as opposed
+ to ~3kHz to move the operating frequency out of the audible range.
+
"#address-cells":
const: 1
@@ -60,6 +68,22 @@ patternProperties:
- reg
allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - issi,is31fl3216
+ - issi,is31fl3218
+ - issi,is31fl3235
+ - issi,is31fl3236
+ - issi,is31fl3293
+ - si-en,sn3216
+ - si-en,sn3218
+ then:
+ properties:
+ issi,22khz-pwm: false
+
- if:
properties:
compatible:
@@ -116,6 +140,7 @@ allOf:
contains:
enum:
- issi,is31fl3236
+ - issi,is31fl3236a
then:
patternProperties:
"^led@([1-9])+$":
--
2.53.0
next prev parent reply other threads:[~2026-04-28 0:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-28 0:34 [PATCH v1 RESEND 0/5] leds: Add shutdown gpio for is31fl32xx Jun Yan
2026-04-28 0:34 ` [PATCH v1 RESEND 1/5] dt-bindings: leds: is31fl32xx: convert the binding to yaml Jun Yan
2026-04-28 1:42 ` Rob Herring (Arm)
2026-04-28 0:34 ` Jun Yan [this message]
2026-04-28 0:34 ` [PATCH v1 RESEND 3/5] dt-bindings: leds: leds-is31fl32xx: Add shutdown-gpios property Jun Yan
2026-04-28 0:34 ` [PATCH v1 RESEND 4/5] leds: is31fl32xx: Add shutdown pin to exit hardware shutdown mode Jun Yan
2026-04-28 0:34 ` [PATCH v1 RESEND 5/5] leds: is31f132xx: Fix missing brightness_steps for is31f13236 Jun Yan
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=20260428003412.322032-3-jerrysteve1101@gmail.com \
--to=jerrysteve1101@gmail.com \
--cc=conor+dt@kernel.org \
--cc=daniel@zonque.org \
--cc=devicetree@vger.kernel.org \
--cc=krzk+dt@kernel.org \
--cc=lee@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-leds@vger.kernel.org \
--cc=luccafachinetti@gmail.com \
--cc=pzalewski@thegoodpenguin.co.uk \
--cc=robh@kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox