linux-kernel - Re: [Patch v3 01/20] dt-bindings: media: cal: update binding to use syscon

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Message-ID: <20191112143656.kvyam2iagosmkhpu@ti.com>
Date:   Tue, 12 Nov 2019 08:36:56 -0600
From:   Benoit Parrot <bparrot@...com>
To:     Hans Verkuil <hverkuil@...all.nl>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Rob Herring <robh+dt@...nel.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [Patch v3 01/20] dt-bindings: media: cal: update binding to use
 syscon

+ Rob

Benoit Parrot <bparrot@...com> wrote on Tue [2019-Nov-12 08:31:33 -0600]:
> Update Device Tree bindings for the CAL driver to use syscon to access
> the phy config register instead of trying to map it directly.
> 
> Signed-off-by: Benoit Parrot <bparrot@...com>
> ---
>  Documentation/devicetree/bindings/media/ti-cal.txt | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/media/ti-cal.txt b/Documentation/devicetree/bindings/media/ti-cal.txt
> index ae9b52f37576..93096d924786 100644
> --- a/Documentation/devicetree/bindings/media/ti-cal.txt
> +++ b/Documentation/devicetree/bindings/media/ti-cal.txt
> @@ -10,9 +10,14 @@ Required properties:
>  - compatible: must be "ti,dra72-cal"
>  - reg:	CAL Top level, Receiver Core #0, Receiver Core #1 and Camera RX
>  	control address space
> -- reg-names: cal_top, cal_rx_core0, cal_rx_core1, and camerrx_control
> +- reg-names: cal_top, cal_rx_core0, cal_rx_core1 and camerrx_control
>  	     registers
>  - interrupts: should contain IRQ line for the CAL;
> +- ti,camerrx-control: phandle to the device control module and offset to
> +		      the control_camerarx_core register.
> +		      This node is meant to replace the "camerrx_control"
> +		      reg entry above but "camerrx_control" is still
> +		      handled for backward compatibility.
>  
>  CAL supports 2 camera port nodes on MIPI bus. Each CSI2 camera port nodes
>  should contain a 'port' child node with child 'endpoint' node. Please
> @@ -25,13 +30,12 @@ Example:
>  		ti,hwmods = "cal";
>  		reg = <0x4845B000 0x400>,
>  		      <0x4845B800 0x40>,
> -		      <0x4845B900 0x40>,
> -		      <0x4A002e94 0x4>;
> +		      <0x4845B900 0x40>;
>  		reg-names = "cal_top",
>  			    "cal_rx_core0",
> -			    "cal_rx_core1",
> -			    "camerrx_control";
> +			    "cal_rx_core1";
>  		interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
> +		ti,camerrx-control = <&scm_conf 0xE94>;
>  		#address-cells = <1>;
>  		#size-cells = <0>;
>  
> -- 
> 2.17.1
>