On Wed, Sep 06, 2023 at 09:18:30AM +0200, Krzysztof Kozlowski wrote: > On 06/09/2023 01:31, Paul Elder wrote: > > Add bindings for the THine THP7312 ISP. > > > > Signed-off-by: Paul Elder <paul.elder@xxxxxxxxxxxxxxxx> > > --- > > Since the THP7312 supports multiple sensors, thine,rx-data-lanes alone > > might not be enough. I was consdering using sensor nodes like what the > > AP1302 does [1]. This way we can also move the power supplies that only > > concern the sensor in there as well. I was wondering what to do about > > the model name, though, as the thp7312 completely isolates that from the > > rest of the system. > > > > I'm planning to add sensor nodes in somehow in a v2. > > > > [1] https://lore.kernel.org/linux-media/20211006113254.3470-2-anil.mamidala@xxxxxxxxxx/ > > > > .../bindings/media/thine,thp7312.yaml | 170 ++++++++++++++++++ > > 1 file changed, 170 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/media/thine,thp7312.yaml > > > > diff --git a/Documentation/devicetree/bindings/media/thine,thp7312.yaml b/Documentation/devicetree/bindings/media/thine,thp7312.yaml > > new file mode 100644 > > index 000000000000..e8d203dcda81 > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/media/thine,thp7312.yaml > > @@ -0,0 +1,170 @@ > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > > +# Copyright (c) 2023 Ideas on Board > > +%YAML 1.2 > > +--- > > +$id: http://devicetree.org/schemas/media/thine,thp7312.yaml# > > +$schema: http://devicetree.org/meta-schemas/core.yaml# > > + > > +title: THine THP7312 > > + > > +maintainers: > > + - Paul Elder <paul.elder@@ideasonboard.com> > > + > > +description: > > + The THP7312 is a standalone ISP controlled over i2c, and is capable of > > + various image processing and correction functions, including 3A control. It > > + can be connected to CMOS image sensors from various vendors, supporting both > > + MIPI CSI-2 and parallel interfaces. It can also output on either MIPI CSI-2 > > + or parallel. The hardware is capable of transmitting and receiving MIPI > > + interlaved data strams with data types or multiple virtual channel > > + identifiers. > > + > > +allOf: > > + - $ref: ../video-interface-devices.yaml# > > + > > +properties: > > + compatible: > > + const: thine,thp7312 > > + > > + reg: > > + description: I2C device address > > You can skip description. It is obvious. ack > > > + maxItems: 1 > > + > > + clocks: > > + maxItems: 1 > > + - description: CLKI clock input > > This was absolutely never tested. I'll admit, yes, I forgot to run the checks. But I did test it on hardware; it's just that this camera module is always powered and the clock is always connected so it wouldn't have been caught :/ > > > + > > + reset-gpios: > > + maxItems: 1 > > + description: |- > > + Reference to the GPIO connected to the RESET_N pin, if any. > > + Must be released (set high) after all supplies are applied. > > + > > + vddcore-supply: > > + description: > > + 1.2V supply for core, PLL, MIPI rx and MIPI tx. > > + > > + vhtermnx-supply: > > + description: > > + Supply for input (rx). 1.8V for MIPI, or 1.8/2.8/3.3V for parallel. > > + > > + vddtx-supply: > > + description: > > + Supply for output (tx). 1.8V for MIPI, or 1.8/2.8/3.3V for parallel. > > + > > + vddhost-supply: > > + description: > > + Supply for host interface. 1.8V, 2.8V, or 3.3V. > > + > > + vddcmos-supply: > > + description: > > + Supply for sensor interface. 1.8V, 2.8V, or 3.3V. > > + > > + vddgpio_0-supply: > > No, underscores are not allowed in names. > > > + description: > > + Supply for GPIO_0. 1.8V, 2.8V, or 3.3V. > > + > > + vddgpio_1-supply: > > + description: > > + Supply for GPIO_1. 1.8V, 2.8V, or 3.3V. > > + > > + DOVDD-supply: > > lowercase. Look at your other supplies. VDD is spelled there "vdd", so > do not introduce random style. > > > > + description: > > + Digital I/O (1.8V) supply for image sensor. > > + > > + AVDD-supply: > > lowercase > > > + description: > > + Analog (2.8V) supply for image sensor. > > + > > + DVDD-supply: > > lowercase > > > + description: > > + Digital Core (1.2V) supply for image sensor. > > + > > + orientation: true > > + rotation: true > > + > > + thine,rx,data-lanes: > > Why are you duplicating properties? With wrong name? No, that's not a > property of a device node, but endpoint. As mentioned elsewhere, it is not duplicated; it's for the input to the ISP. The data-lanes below is for the output of the ISP. And since the input to the ISP is completely isolated from the rest of the system (besides power, I suppose), it's kind of overkill to make an entire endpoint for it. I suppose the description that I wrote for this property was slightly too concise to convey that. I quite like the sensors node introduced in the AP1302; I hope that's a more acceptable solution? Paul > > > + minItems: 4 > > + maxItems: 4 > > + $ref: /schemas/media/video-interfaces.yaml#data-lanes > > + description: |- > > Drop |- where not needed. > > > + This property is for lane reordering between the THP7312 and the imaging > > + sensor that it is connected to. > > + > > + port: > > + $ref: /schemas/graph.yaml#/$defs/port-base > > + additionalProperties: false > > + > > + properties: > > + endpoint: > > + $ref: /schemas/media/video-interfaces.yaml# > > + unevaluatedProperties: false > > + > > + properties: > > + data-lanes: > > + description: |- > > + The sensor supports either two-lane, or four-lane operation. > > + This property is for lane reordering between the THP7312 and > > + the SoC. If this property is omitted four-lane operation is > > + assumed. For two-lane operation the property must be set to <1 2>. > > + minItems: 2 > > + maxItems: 4 > > + items: > > + maximum: 4 > > + > > +required: > > + - compatible > > + - reg > > + - reset-gpios > > + - clocks > > + - vddcore-supply > > + - vhtermrx-supply > > + - vddtx-supply > > + - vddhost-supply > > + - vddcmos-supply > > + - vddgpio_0-supply > > + - vddgpio_1-supply > > + - DOVDD-supply > > + - AVDD-supply > > + - DVDD-supply > > + - thine,rx,data-lanes > > + - port > > + > > +additionalProperties: false > > + > > +examples: > > + - | > > + #include <dt-bindings/gpio/gpio.h> > > + > > + i2c { > > + #address-cells = <1>; > > + #size-cells = <0>; > > + > > + camera@61 { > > + compatible = "thine,thp7312"; > > + reg = <0x61>; > > + > > + pinctrl-names = "default"; > > + pinctrl-0 = <&cam1_pins_default>; > > + > > + reset-gpios = <&pio 119 GPIO_ACTIVE_LOW>; > > + clocks = <&camera61_clk>; > > + > > + vddcore-supply = <&vsys_v4p2>; > > + AVDD-supply = <&vsys_v4p2>; > > + DVDD-supply = <&vsys_v4p2>; > > Srlsy, test it before sending. Look how many supplies you require and > what is provided here. How any of this could possibly work? > > > > Best regards, > Krzysztof >
