From 17d82b47a215ded05ee3fb8d93b7c1269dbe0083 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Thu, 7 Feb 2013 17:09:00 +0000 Subject: iio: Add OF support Provide bindings and parse OF data during initialization. Signed-off-by: Guenter Roeck Reviewed-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/iio-bindings.txt | 97 ++++++++++++++++++++++ 1 file changed, 97 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/iio-bindings.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/iio/iio-bindings.txt b/Documentation/devicetree/bindings/iio/iio-bindings.txt new file mode 100644 index 00000000000..0b447d9ad19 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/iio-bindings.txt @@ -0,0 +1,97 @@ +This binding is derived from clock bindings, and based on suggestions +from Lars-Peter Clausen [1]. + +Sources of IIO channels can be represented by any node in the device +tree. Those nodes are designated as IIO providers. IIO consumer +nodes use a phandle and IIO specifier pair to connect IIO provider +outputs to IIO inputs. Similar to the gpio specifiers, an IIO +specifier is an array of one or more cells identifying the IIO +output on a device. The length of an IIO specifier is defined by the +value of a #io-channel-cells property in the IIO provider node. + +[1] http://marc.info/?l=linux-iio&m=135902119507483&w=2 + +==IIO providers== + +Required properties: +#io-channel-cells: Number of cells in an IIO specifier; Typically 0 for nodes + with a single IIO output and 1 for nodes with multiple + IIO outputs. + +Example for a simple configuration with no trigger: + + adc: voltage-sensor@35 { + compatible = "maxim,max1139"; + reg = <0x35>; + #io-channel-cells = <1>; + }; + +Example for a configuration with trigger: + + adc@35 { + compatible = "some-vendor,some-adc"; + reg = <0x35>; + + adc1: iio-device@0 { + #io-channel-cells = <1>; + /* other properties */ + }; + adc2: iio-device@1 { + #io-channel-cells = <1>; + /* other properties */ + }; + }; + +==IIO consumers== + +Required properties: +io-channels: List of phandle and IIO specifier pairs, one pair + for each IIO input to the device. Note: if the + IIO provider specifies '0' for #io-channel-cells, + then only the phandle portion of the pair will appear. + +Optional properties: +io-channel-names: + List of IIO input name strings sorted in the same + order as the io-channels property. Consumers drivers + will use io-channel-names to match IIO input names + with IIO specifiers. +io-channel-ranges: + Empty property indicating that child nodes can inherit named + IIO channels from this node. Useful for bus nodes to provide + and IIO channel to their children. + +For example: + + device { + io-channels = <&adc 1>, <&ref 0>; + io-channel-names = "vcc", "vdd"; + }; + +This represents a device with two IIO inputs, named "vcc" and "vdd". +The vcc channel is connected to output 1 of the &adc device, and the +vdd channel is connected to output 0 of the &ref device. + +==Example== + + adc: max1139@35 { + compatible = "maxim,max1139"; + reg = <0x35>; + #io-channel-cells = <1>; + }; + + ... + + iio_hwmon { + compatible = "iio-hwmon"; + io-channels = <&adc 0>, <&adc 1>, <&adc 2>, + <&adc 3>, <&adc 4>, <&adc 5>, + <&adc 6>, <&adc 7>, <&adc 8>, + <&adc 9>; + }; + + some_consumer { + compatible = "some-consumer"; + io-channels = <&adc 10>, <&adc 11>; + io-channel-names = "adc1", "adc2"; + }; -- cgit v1.2.3 From 10f5b14811023df0ba1a936b14880eabb6d9c199 Mon Sep 17 00:00:00 2001 From: Naveen Krishna Chatradhi Date: Fri, 15 Feb 2013 06:56:00 +0000 Subject: iio: adc: add exynos adc driver under iio framwork This patch adds New driver to support: 1. Supports ADC IF found on EXYNOS4412/EXYNOS5250 and future SoCs from Samsung 2. Add ADC driver under iio/adc framework 3. Also adds the Documentation for device tree bindings Signed-off-by: Naveen Krishna Chatradhi Reviewed-by: Lars-Peter Clausen Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/arm/samsung/exynos-adc.txt | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt new file mode 100644 index 00000000000..f68637861b0 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt @@ -0,0 +1,52 @@ +Samsung Exynos Analog to Digital Converter bindings + +This devicetree binding are for the new adc driver written fori +Exynos4 and upward SoCs from Samsung. + +New driver handles the following +1. Supports ADC IF found on EXYNOS4412/EXYNOS5250 + and future SoCs from Samsung +2. Add ADC driver under iio/adc framework +3. Also adds the Documentation for device tree bindings + +Required properties: +- compatible: Must be "samsung,exynos-adc-v1" + for exynos4412/5250 controllers. + Must be "samsung,exynos-adc-v2" for + future controllers. +- reg: Contains ADC register address range (base address and + length). +- interrupts: Contains the interrupt information for the timer. The + format is being dependent on which interrupt controller + the Samsung device uses. +- #io-channel-cells = <1>; As ADC has multiple outputs + +Note: child nodes can be added for auto probing from device tree. + +Example: adding device info in dtsi file + +adc: adc@12D10000 { + compatible = "samsung,exynos-adc-v1"; + reg = <0x12D10000 0x100>; + interrupts = <0 106 0>; + #io-channel-cells = <1>; + io-channel-ranges; +}; + + +Example: Adding child nodes in dts file + +adc@12D10000 { + + /* NTC thermistor is a hwmon device */ + ncp15wb473@0 { + compatible = "ntc,ncp15wb473"; + pullup-uV = <1800000>; + pullup-ohm = <47000>; + pulldown-ohm = <0>; + io-channels = <&adc 4>; + }; +}; + +Note: Does not apply to ADC driver under arch/arm/plat-samsung/ +Note: The child node can be added under the adc node or seperately. -- cgit v1.2.3 From bb916ebbeabd18f7dc3c661275d2c9d343f4fa85 Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Wed, 13 Mar 2013 20:40:00 +0000 Subject: iio: adc: Add dt support for turning on the phy in exynos-adc Without this change the exynos adc controller needed to have its phy enabled in some out-of-driver C code. Add support for specifying the phy enable register by listing it in the reg list. Signed-off-by: Doug Anderson Tested-by: Naveen Krishna Chatradhi Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt index f68637861b0..05e9d95ede5 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt @@ -15,7 +15,7 @@ Required properties: Must be "samsung,exynos-adc-v2" for future controllers. - reg: Contains ADC register address range (base address and - length). + length) and the address of the phy enable register. - interrupts: Contains the interrupt information for the timer. The format is being dependent on which interrupt controller the Samsung device uses. @@ -27,7 +27,7 @@ Example: adding device info in dtsi file adc: adc@12D10000 { compatible = "samsung,exynos-adc-v1"; - reg = <0x12D10000 0x100>; + reg = <0x12D10000 0x100>, <0x10040718 0x4>; interrupts = <0 106 0>; #io-channel-cells = <1>; io-channel-ranges; -- cgit v1.2.3 From df4b404b35e3e125b7e6d82f9affc6c704502cb3 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Tue, 26 Mar 2013 11:52:00 +0000 Subject: iio: exynos-adc: Fix typo in DT documentation Fixes some typos in the documentation of exynos-adc.txt. Signed-off-by: Sachin Kamat Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt index 05e9d95ede5..1fc744bd716 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt @@ -1,6 +1,6 @@ Samsung Exynos Analog to Digital Converter bindings -This devicetree binding are for the new adc driver written fori +The devicetree bindings are for the new ADC driver written for Exynos4 and upward SoCs from Samsung. New driver handles the following @@ -49,4 +49,4 @@ adc@12D10000 { }; Note: Does not apply to ADC driver under arch/arm/plat-samsung/ -Note: The child node can be added under the adc node or seperately. +Note: The child node can be added under the adc node or separately. -- cgit v1.2.3 From 2b684024b59c4b1a1440e8c7499b7060a22d1ec1 Mon Sep 17 00:00:00 2001 From: Doug Anderson Date: Wed, 13 Mar 2013 20:39:00 +0000 Subject: iio: adc: Document the regulator/clocks for exynos-adc The exynos ADC won't work without a regulator called "vdd" and a clock called "adc". Document this fact in the device tree bindings. Signed-off-by: Doug Anderson Reviewed-by: Naveen Krishna Chatradhi Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt index 1fc744bd716..47ada1dff21 100644 --- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt +++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt @@ -20,6 +20,9 @@ Required properties: format is being dependent on which interrupt controller the Samsung device uses. - #io-channel-cells = <1>; As ADC has multiple outputs +- clocks From common clock binding: handle to adc clock. +- clock-names From common clock binding: Shall be "adc". +- vdd-supply VDD input supply. Note: child nodes can be added for auto probing from device tree. @@ -31,6 +34,11 @@ adc: adc@12D10000 { interrupts = <0 106 0>; #io-channel-cells = <1>; io-channel-ranges; + + clocks = <&clock 303>; + clock-names = "adc"; + + vdd-supply = <&buck5_reg>; }; -- cgit v1.2.3 From 47be16b6683b86653545bf98f6f57019bb99969c Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Fri, 29 Mar 2013 14:54:00 +0000 Subject: iio: at91_adc: add low and high res support at91 adc offers the choice between two resolutions: low and high. The low and high resolution values depends on adc IP version, as many IP properties have been exposed through device tree, these settings have also been added to the dt bindings. Signed-off-by: Ludovic Desroches Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/arm/atmel-adc.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/atmel-adc.txt b/Documentation/devicetree/bindings/arm/atmel-adc.txt index c63097d6afe..fd2d69ee287 100644 --- a/Documentation/devicetree/bindings/arm/atmel-adc.txt +++ b/Documentation/devicetree/bindings/arm/atmel-adc.txt @@ -14,9 +14,17 @@ Required properties: - atmel,adc-status-register: Offset of the Interrupt Status Register - atmel,adc-trigger-register: Offset of the Trigger Register - atmel,adc-vref: Reference voltage in millivolts for the conversions + - atmel,adc-res: List of resolution in bits supported by the ADC. List size + must be two at least. + - atmel,adc-res-names: Contains one identifier string for each resolution + in atmel,adc-res property. "lowres" and "highres" + identifiers are required. Optional properties: - atmel,adc-use-external: Boolean to enable of external triggers + - atmel,adc-use-res: String corresponding to an identifier from + atmel,adc-res-names property. If not specified, the highest + resolution will be used. Optional trigger Nodes: - Required properties: @@ -40,6 +48,9 @@ adc0: adc@fffb0000 { atmel,adc-trigger-register = <0x08>; atmel,adc-use-external; atmel,adc-vref = <3300>; + atmel,adc-res = <8 10>; + atmel,adc-res-names = "lowres", "highres"; + atmel,adc-use-res = "lowres"; trigger@0 { trigger-name = "external-rising"; -- cgit v1.2.3 From e748783c55f074046134d2ef15a6e04dd467ecfc Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Fri, 29 Mar 2013 14:54:00 +0000 Subject: iio: at91_adc: add sleep mode support The sleep mode will allow to put the adc in sleep between conversion. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Ludovic Desroches Acked-by: Maxime Ripard Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/arm/atmel-adc.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/atmel-adc.txt b/Documentation/devicetree/bindings/arm/atmel-adc.txt index fd2d69ee287..3a05492acda 100644 --- a/Documentation/devicetree/bindings/arm/atmel-adc.txt +++ b/Documentation/devicetree/bindings/arm/atmel-adc.txt @@ -25,6 +25,7 @@ Optional properties: - atmel,adc-use-res: String corresponding to an identifier from atmel,adc-res-names property. If not specified, the highest resolution will be used. + - atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion Optional trigger Nodes: - Required properties: -- cgit v1.2.3 From beca9e767e27f756d6aed9a62665e3f73546aabb Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Fri, 29 Mar 2013 14:54:00 +0000 Subject: iio: at91_adc: fix missing Sample and Hold time On the at91_adc a minimal Sample and Hold Time is necessary for the ADC to guarantee the best converted final value between two channels selection. This time has to be programmed through the bitfield SHTIM in the Mode Register ADC_MR. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Ludovic Desroches Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/arm/atmel-adc.txt | 1 + 1 file changed, 1 insertion(+) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/arm/atmel-adc.txt b/Documentation/devicetree/bindings/arm/atmel-adc.txt index 3a05492acda..16769d9cedd 100644 --- a/Documentation/devicetree/bindings/arm/atmel-adc.txt +++ b/Documentation/devicetree/bindings/arm/atmel-adc.txt @@ -26,6 +26,7 @@ Optional properties: atmel,adc-res-names property. If not specified, the highest resolution will be used. - atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion + - atmel,adc-sample-hold-time: Sample and Hold Time in microseconds Optional trigger Nodes: - Required properties: -- cgit v1.2.3 From 5b9974b13e3648b6821a6d2aab408ce7cef60ce3 Mon Sep 17 00:00:00 2001 From: Matthijs Kooijman Date: Mon, 22 Apr 2013 14:00:19 -0700 Subject: staging: dwc2: add platform device bindings This adds a dwc_platform.ko module that can be loaded by using compatible = "snps,dwc2" in a device tree. Signed-off-by: Matthijs Kooijman Signed-off-by: Paul Zimmerman Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/staging/dwc2.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 Documentation/devicetree/bindings/staging/dwc2.txt (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/staging/dwc2.txt b/Documentation/devicetree/bindings/staging/dwc2.txt new file mode 100644 index 00000000000..1a1b7cfa484 --- /dev/null +++ b/Documentation/devicetree/bindings/staging/dwc2.txt @@ -0,0 +1,15 @@ +Platform DesignWare HS OTG USB 2.0 controller +----------------------------------------------------- + +Required properties: +- compatible : "snps,dwc2" +- reg : Should contain 1 register range (address and length) +- interrupts : Should contain 1 interrupt + +Example: + + usb@101c0000 { + compatible = "ralink,rt3050-usb, snps,dwc2"; + reg = <0x101c0000 40000>; + interrupts = <18>; + }; -- cgit v1.2.3 From 7d0a66c0ccfd0ec23645ba2d92593c00d11bf936 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 22 Apr 2013 23:19:31 +0200 Subject: staging: video: imx: Add BGR666 support for parallel display Support the BGR666 format on the IPUv3 parallel display. Signed-off-by: Marek Vasut Cc: Philipp Zabel Cc: Sascha Hauer Cc: Bill Pemberton Signed-off-by: Greg Kroah-Hartman --- Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt b/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt index 07654f0338b..8071ac20d4b 100644 --- a/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt +++ b/Documentation/devicetree/bindings/staging/imx-drm/fsl-imx-drm.txt @@ -26,7 +26,7 @@ Required properties: - crtc: the crtc this display is connected to, see below Optional properties: - interface_pix_fmt: How this display is connected to the - crtc. Currently supported types: "rgb24", "rgb565" + crtc. Currently supported types: "rgb24", "rgb565", "bgr666" - edid: verbatim EDID data block describing attached display. - ddc: phandle describing the i2c bus handling the display data channel -- cgit v1.2.3