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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: linux-gpio@vger.kernel.org
Cc: Linus Walleij <linus.walleij@linaro.org>,
	Alexandre Courbot <gnurou@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	cphealy@gmail.com, Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH v2 10/10] bindings: gpio-sx150x: Document new bindings
Date: Wed, 19 Oct 2016 07:04:06 -0700	[thread overview]
Message-ID: <1476885846-16469-11-git-send-email-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <1476885846-16469-1-git-send-email-andrew.smirnov@gmail.com>

This patch documents the conversion of various platform data options
that used to be availible to SX150x driver to device tree/OF form.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 .../devicetree/bindings/gpio/gpio-sx150x.txt       | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
index c809acb..e96b554 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-sx150x.txt
@@ -26,6 +26,35 @@ 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.
+
+- semtech,io-pullup:
+- semtech,io-pulldown: A bit-mask which enables-or disables the
+  		       pull-up (pull-down) resistor for each IO line
+  		       in the expander. Setting the bit at position n
+  		       will enable the pull-down for the IO at the
+  		       corresponding offset.  For chips with fewer
+  		       than 16 IO pins, high-end bits are ignored.
+
+- semtech,reset-during-probe: Boolean, if true, the driver will
+  			      trigger a full reset of the chip at the
+  			      beginning of the probe in order to place
+  			      it in a known state.
+
+- semtech,oscio-is-gpo: Boolean, if set to true, the driver will
+  			configure OSCIO as a GPO instead of as an
+  			oscillator, increasing the size of the GP(I)O
+  			pool created by this expander by one.  The
+  			output-only GPO pin will be added at the end
+  			of the block.
+
 Example:
 
 	i2c_gpio_expander@20{
-- 
2.5.5

  parent reply	other threads:[~2016-10-19 14:04 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-19 14:03 [PATCH v2 00/10] Revamp Semtech SX150x driver Andrey Smirnov
2016-10-19 14:03 ` [PATCH v2 01/10] gpio-sx150x: Remove 'gpio_base' from pdata Andrey Smirnov
2016-10-19 14:03 ` [PATCH v2 02/10] gpio-sx150x: Remove 'irq_summary' parameter Andrey Smirnov
2016-10-19 14:03 ` [PATCH v2 03/10] gpio-sx150x: Remove 'irq_base' parameter Andrey Smirnov
2016-10-19 14:04 ` [PATCH v2 04/10] gpio-sx150x: Replace 'io_polarity' with DT binding Andrey Smirnov
2016-10-19 14:04 ` [PATCH v2 05/10] gpio-sx150x: Replace "io_pull*_ena" with DT bindings Andrey Smirnov
2016-10-19 14:04 ` [PATCH v2 06/10] gpio-sx150x: Replace 'reset_during_probe" with DT binding Andrey Smirnov
2016-10-19 14:04 ` [PATCH v2 07/10] gpio-sx150x: Replace 'oscio_is_gpio' " Andrey Smirnov
2016-10-19 14:04 ` [PATCH v2 08/10] gpio-sx150x: Remove struct sx150x_platform_data Andrey Smirnov
2016-10-19 14:04 ` [PATCH v2 09/10] gpio-sx150x: Pass device type in DT match table Andrey Smirnov
2016-10-19 14:04 ` Andrey Smirnov [this message]
     [not found] ` <1476885846-16469-1-git-send-email-andrew.smirnov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-10-20 19:08   ` [PATCH v2 00/10] Revamp Semtech SX150x driver Linus Walleij
2016-10-20 19:08     ` Linus Walleij
2016-10-20 19:34     ` Andrey Smirnov
2016-10-21  9:17       ` Neil Armstrong

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