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From: Eugen Hristev <eugen.hristev@microchip.com>
To: <jic23@kernel.org>, <ludovic.desroches@microchip.com>,
	<alexandre.belloni@bootlin.com>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-iio@vger.kernel.org>, <linux-input@vger.kernel.org>,
	<nicolas.ferre@microchip.com>, <dmitry.torokhov@gmail.com>,
	<robh@kernel.org>
Cc: Eugen Hristev <eugen.hristev@microchip.com>
Subject: [PATCH v5 7/9] dt-bindings: iio: adc: at91-sama5d2_adc: add channel specific consumer info
Date: Thu, 10 May 2018 13:45:12 +0300	[thread overview]
Message-ID: <1525949114-29263-8-git-send-email-eugen.hristev@microchip.com> (raw)
In-Reply-To: <1525949114-29263-1-git-send-email-eugen.hristev@microchip.com>

Added defines for channel consumer device-tree binding

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/iio/adc/at91-sama5d2_adc.txt     |  9 +++++++++
 include/dt-bindings/iio/adc/at91-sama5d2_adc.h           | 16 ++++++++++++++++
 2 files changed, 25 insertions(+)
 create mode 100644 include/dt-bindings/iio/adc/at91-sama5d2_adc.h

diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
index 6469a4c..4a3c1d4 100644
--- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
@@ -21,6 +21,14 @@ Optional properties:
   - dmas: Phandle to dma channel for the ADC.
   - dma-names: Must be "rx" when dmas property is being used.
   See ../../dma/dma.txt for details.
+  - #io-channel-cells: in case consumer drivers are attached, this must be 1.
+  See <Documentation/devicetree/bindings/iio/iio-bindings.txt> for details.
+
+Properties for consumer drivers:
+  - Consumer drivers can be connected to this producer device, as specified
+  in <Documentation/devicetree/bindings/iio/iio-bindings.txt>
+  - Channels exposed are specified in:
+  <dt-bindings/iio/adc/at91-sama5d2_adc.txt>
 
 Example:
 
@@ -38,4 +46,5 @@ adc: adc@fc030000 {
 	atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
 	dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;
 	dma-names = "rx";
+	#io-channel-cells = <1>;
 }
diff --git a/include/dt-bindings/iio/adc/at91-sama5d2_adc.h b/include/dt-bindings/iio/adc/at91-sama5d2_adc.h
new file mode 100644
index 0000000..70f99db
--- /dev/null
+++ b/include/dt-bindings/iio/adc/at91-sama5d2_adc.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants for configuring the AT91 SAMA5D2 ADC
+ */
+
+#ifndef _DT_BINDINGS_IIO_ADC_AT91_SAMA5D2_ADC_H
+#define _DT_BINDINGS_IIO_ADC_AT91_SAMA5D2_ADC_H
+
+/* X relative position channel index */
+#define AT91_SAMA5D2_ADC_X_CHANNEL		24
+/* Y relative position channel index */
+#define AT91_SAMA5D2_ADC_Y_CHANNEL		25
+/* pressure channel index */
+#define AT91_SAMA5D2_ADC_P_CHANNEL		26
+
+#endif
-- 
2.7.4

  parent reply	other threads:[~2018-05-10 10:51 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-10 10:45 [PATCH v5 0/9] Add support for SAMA5D2 touchscreen Eugen Hristev
2018-05-10 10:45 ` [PATCH v5 1/9] MAINTAINERS: add generic resistive touchscreen adc Eugen Hristev
2018-05-10 10:45 ` [PATCH v5 2/9] iio: Add channel for Position Relative Eugen Hristev
2018-05-10 10:45 ` [PATCH v5 3/9] dt-bindings: input: touchscreen: add minimum pressure touchscreen property Eugen Hristev
2018-05-18 16:35   ` Rob Herring
2018-05-10 10:45 ` [PATCH v5 4/9] dt-bindings: input: touchscreen: resistive-adc-touch: create bindings Eugen Hristev
2018-05-18 14:20   ` Rob Herring
2018-05-10 10:45 ` [PATCH v5 5/9] iio: adc: at91-sama5d2_adc: add support for position and pressure channels Eugen Hristev
2018-05-10 10:45 ` [PATCH v5 6/9] input: touchscreen: resistive-adc-touch: add generic resistive ADC touchscreen Eugen Hristev
2018-05-10 10:45 ` Eugen Hristev [this message]
2018-05-10 10:45 ` [PATCH v5 8/9] ARM: dts: at91: sama5d2: add channel cells for ADC device Eugen Hristev
2018-05-10 10:45 ` [PATCH v5 9/9] ARM: dts: at91: sama5d2: Add resistive touch device Eugen Hristev

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