From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lorenzo Bianconi Subject: [PATCH 8/9] dt-bindings: iio: humidity: hts221: support open drain mode Date: Sun, 9 Jul 2017 18:57:03 +0200 Message-ID: <20170709165704.26311-9-lorenzo.bianconi@st.com> References: <20170709165704.26311-1-lorenzo.bianconi@st.com> Return-path: In-Reply-To: <20170709165704.26311-1-lorenzo.bianconi-qxv4g6HH51o@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Cc: linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, lorenzo.bianconi-qxv4g6HH51o@public.gmane.org List-Id: devicetree@vger.kernel.org Signed-off-by: Lorenzo Bianconi --- Documentation/devicetree/bindings/iio/humidity/hts221.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/humidity/hts221.txt b/Documentation/devicetree/bindings/iio/humidity/hts221.txt index fca263e13400..732b83c06c08 100644 --- a/Documentation/devicetree/bindings/iio/humidity/hts221.txt +++ b/Documentation/devicetree/bindings/iio/humidity/hts221.txt @@ -5,6 +5,14 @@ Required properties: - reg: i2c address of the sensor / spi cs line Optional properties: +- drive-open-drain: the interrupt/data ready line will be configured + as open drain, which is useful if several sensors share the same + interrupt line. This is a boolean property. + (This binding is taken from pinctrl/pinctrl-bindings.txt) + If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or + IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line + when it is not active, whereas a pull-up one is needed when interrupt + line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING. - interrupt-parent: should be the phandle for the interrupt controller - interrupts: interrupt mapping for IRQ. It should be configured with flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or -- 2.13.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Lorenzo Bianconi To: jic23@kernel.org Cc: linux-iio@vger.kernel.org, devicetree@vger.kernel.org, lorenzo.bianconi@st.com Subject: [PATCH 8/9] dt-bindings: iio: humidity: hts221: support open drain mode Date: Sun, 9 Jul 2017 18:57:03 +0200 Message-Id: <20170709165704.26311-9-lorenzo.bianconi@st.com> In-Reply-To: <20170709165704.26311-1-lorenzo.bianconi@st.com> References: <20170709165704.26311-1-lorenzo.bianconi@st.com> List-ID: Signed-off-by: Lorenzo Bianconi --- Documentation/devicetree/bindings/iio/humidity/hts221.txt | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/humidity/hts221.txt b/Documentation/devicetree/bindings/iio/humidity/hts221.txt index fca263e13400..732b83c06c08 100644 --- a/Documentation/devicetree/bindings/iio/humidity/hts221.txt +++ b/Documentation/devicetree/bindings/iio/humidity/hts221.txt @@ -5,6 +5,14 @@ Required properties: - reg: i2c address of the sensor / spi cs line Optional properties: +- drive-open-drain: the interrupt/data ready line will be configured + as open drain, which is useful if several sensors share the same + interrupt line. This is a boolean property. + (This binding is taken from pinctrl/pinctrl-bindings.txt) + If the requested interrupt is configured as IRQ_TYPE_LEVEL_HIGH or + IRQ_TYPE_EDGE_RISING a pull-down resistor is needed to drive the line + when it is not active, whereas a pull-up one is needed when interrupt + line is configured as IRQ_TYPE_LEVEL_LOW or IRQ_TYPE_EDGE_FALLING. - interrupt-parent: should be the phandle for the interrupt controller - interrupts: interrupt mapping for IRQ. It should be configured with flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or -- 2.13.1