Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1502047
| From | Andrey Smirnov <andrew.smirnov@gmail.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 05/13] bindings: gpio-sx150x: Document "semtech,io-polarity" binding |
| Date | 2016-10-17 16:40 +0200 |
| Message-ID | <sthf4-4Gc-17@gated-at.bofh.it> (permalink) |
| References | <sth5n-4CT-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
Documentation/devicetree/bindings/gpio/gpio-sx150x.txt | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
index c809acb..02b92ae 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
@@ -26,6 +26,15 @@ The GPIO expander can optionally be used as an interrupt controller, in
which case it uses the default two cell specifier as described in
Documentation/devicetree/bindings/interrupt-controller/interrupts.txt.
+Optional properties:
+
+- semtech,io-polarity: A bit-mask which enables polarity inversion for
+ each IO line in the expander. Setting the bit
+ at position n inverts the polarity of that IO
+ line, while clearing it results in normal
+ polarity. For chips with fewer than 16 IO pins,
+ high-end bits are ignored.
+
Example:
i2c_gpio_expander@20{
--
2.5.5
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
[PATCH 00/13] Revamp Semtech SX150x driver Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:30 +0200
[PATCH 10/13] gpio-sx150x: Replace 'oscio_is_gpio' with DT binding Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:30 +0200
[PATCH 08/13] gpio-sx150x: Replace 'reset_during_probe" with DT binding Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:30 +0200
[PATCH 02/13] gpio-sx150x: Remove 'irq_summary' parameter Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:30 +0200
[PATCH 11/13] bindings: gpio-sx150x: Document "semtech,oscio-is-gpo" binding Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:30 +0200
[PATCH 06/13] gpio-sx150x: Replace "io_pull*_ena" with DT bindings Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:40 +0200
[PATCH 04/13] gpio-sx150x: Replace 'io_polarity' with DT binding Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:40 +0200
[PATCH 05/13] bindings: gpio-sx150x: Document "semtech,io-polarity" binding Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:40 +0200
Re: [PATCH 05/13] bindings: gpio-sx150x: Document "semtech,io-polarity" binding Rob Herring <robh@kernel.org> - 2016-10-18 18:30 +0200
[PATCH 03/13] gpio-sx150x: Remove 'irq_base' parameter Andrey Smirnov <andrew.smirnov@gmail.com> - 2016-10-17 16:40 +0200
csiph-web