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Date:   Thu, 18 Feb 2021 23:20:08 -0600
From:   Frank Rowand <frowand.list@...il.com>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Pantelis Antoniou <pantelis.antoniou@...sulko.com>,
        Masahiro Yamada <masahiroy@...nel.org>
Cc:     Vincent Guittot <vincent.guittot@...aro.org>,
        linux-kernel@...r.kernel.org, anmar.oueja@...aro.org,
        Bill Mills <bill.mills@...aro.org>,
        David Gibson <david@...son.dropbear.id.au>,
        devicetree@...r.kernel.org, Michal Marek <michal.lkml@...kovi.net>
Subject: Re: [PATCH V7 5/6] of: unittest: Create overlay_common.dtsi and
 testcases_common.dtsi

Hi Viresh,

I am in the wrong version with the comments below.  You are at version 8 now.

-Frank

On 2/18/21 3:02 PM, Frank Rowand wrote:
> On 1/29/21 1:24 AM, Viresh Kumar wrote:
>> In order to build-test the same unit-test files using fdtoverlay tool,
>> move the device nodes from the existing overlay_base.dts and
>> testcases_common.dts files to .dtsi counterparts. The .dts files now
>> include the new .dtsi files, resulting in exactly the same behavior as
>> earlier.
>>
>> The .dtsi files can now be reused for compile time tests using
>> fdtoverlay (will be done by a later commit).
>>
>> This is required because the base files passed to fdtoverlay tool
>> shouldn't be overlays themselves (i.e. shouldn't have the /plugin/;
>> tag).
>>
>> Note that this commit also moves "testcase-device2" node to
>> testcases.dts from tests-interrupts.dtsi, as this node has a deliberate
>> error in it and is only relevant for runtime testing done with
>> unittest.c.
>>
>> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
>> ---
>>  drivers/of/unittest-data/overlay_base.dts     | 90 +-----------------
>>  drivers/of/unittest-data/overlay_common.dtsi  | 91 +++++++++++++++++++
>>  drivers/of/unittest-data/testcases.dts        | 18 ++--
>>  .../of/unittest-data/testcases_common.dtsi    | 19 ++++
>>  .../of/unittest-data/tests-interrupts.dtsi    |  7 --
>>  5 files changed, 118 insertions(+), 107 deletions(-)
>>  create mode 100644 drivers/of/unittest-data/overlay_common.dtsi
>>  create mode 100644 drivers/of/unittest-data/testcases_common.dtsi
>>
>> diff --git a/drivers/of/unittest-data/overlay_base.dts b/drivers/of/unittest-data/overlay_base.dts
>> index 99ab9d12d00b..ab9014589c5d 100644
>> --- a/drivers/of/unittest-data/overlay_base.dts
>> +++ b/drivers/of/unittest-data/overlay_base.dts
>> @@ -2,92 +2,4 @@
>>  /dts-v1/;
>>  /plugin/;
>>  
>> -/*
>> - * Base device tree that overlays will be applied against.
>> - *
>> - * Do not add any properties in node "/".
>> - * Do not add any nodes other than "/testcase-data-2" in node "/".
>> - * Do not add anything that would result in dtc creating node "/__fixups__".
>> - * dtc will create nodes "/__symbols__" and "/__local_fixups__".
>> - */
>> -
>> -/ {
>> -	testcase-data-2 {
>> -		#address-cells = <1>;
>> -		#size-cells = <1>;
>> -
>> -		electric_1: substation@100 {
>> -			compatible = "ot,big-volts-control";
>> -			reg = < 0x00000100 0x100 >;
>> -			status = "disabled";
>> -
>> -			hvac_1: hvac-medium-1 {
>> -				compatible = "ot,hvac-medium";
>> -				heat-range = < 50 75 >;
>> -				cool-range = < 60 80 >;
>> -			};
>> -
>> -			spin_ctrl_1: motor-1 {
>> -				compatible = "ot,ferris-wheel-motor";
>> -				spin = "clockwise";
>> -				rpm_avail = < 50 >;
>> -			};
>> -
>> -			spin_ctrl_2: motor-8 {
>> -				compatible = "ot,roller-coaster-motor";
>> -			};
>> -		};
>> -
>> -		rides_1: fairway-1 {
>> -			#address-cells = <1>;
>> -			#size-cells = <1>;
>> -			compatible = "ot,rides";
>> -			status = "disabled";
>> -			orientation = < 127 >;
>> -
>> -			ride@100 {
>> -				#address-cells = <1>;
>> -				#size-cells = <1>;
>> -				compatible = "ot,roller-coaster";
>> -				reg = < 0x00000100 0x100 >;
>> -				hvac-provider = < &hvac_1 >;
>> -				hvac-thermostat = < 29 > ;
>> -				hvac-zones = < 14 >;
>> -				hvac-zone-names = "operator";
>> -				spin-controller = < &spin_ctrl_2 5 &spin_ctrl_2 7 >;
>> -				spin-controller-names = "track_1", "track_2";
>> -				queues = < 2 >;
>> -
>> -				track@30 {
>> -					reg = < 0x00000030 0x10 >;
>> -				};
>> -
>> -				track@40 {
>> -					reg = < 0x00000040 0x10 >;
>> -				};
>> -
>> -			};
>> -		};
>> -
>> -		lights_1: lights@...00 {
>> -			compatible = "ot,work-lights";
>> -			reg = < 0x00030000 0x1000 >;
>> -			status = "disabled";
>> -		};
>> -
>> -		lights_2: lights@...00 {
>> -			compatible = "ot,show-lights";
>> -			reg = < 0x00040000 0x1000 >;
>> -			status = "disabled";
>> -			rate = < 13 138 >;
>> -		};
>> -
>> -		retail_1: vending@...00 {
>> -			reg = < 0x00050000 0x1000 >;
>> -			compatible = "ot,tickets";
>> -			status = "disabled";
>> -		};
>> -
>> -	};
>> -};
>> -
>> +#include "overlay_common.dtsi"
>> diff --git a/drivers/of/unittest-data/overlay_common.dtsi b/drivers/of/unittest-data/overlay_common.dtsi
>> new file mode 100644
>> index 000000000000..08874a72556e
>> --- /dev/null
>> +++ b/drivers/of/unittest-data/overlay_common.dtsi
>> @@ -0,0 +1,91 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +
>> +/*
>> + * Base device tree that overlays will be applied against.
>> + *
>> + * Do not add any properties in node "/".
>> + * Do not add any nodes other than "/testcase-data-2" in node "/".
>> + * Do not add anything that would result in dtc creating node "/__fixups__".
>> + * dtc will create nodes "/__symbols__" and "/__local_fixups__".
>> + */
>> +
>> +/ {
>> +	testcase-data-2 {
>> +		#address-cells = <1>;
>> +		#size-cells = <1>;
>> +
>> +		electric_1: substation@100 {
>> +			compatible = "ot,big-volts-control";
>> +			reg = < 0x00000100 0x100 >;
>> +			status = "disabled";
>> +
>> +			hvac_1: hvac-medium-1 {
>> +				compatible = "ot,hvac-medium";
>> +				heat-range = < 50 75 >;
>> +				cool-range = < 60 80 >;
>> +			};
>> +
>> +			spin_ctrl_1: motor-1 {
>> +				compatible = "ot,ferris-wheel-motor";
>> +				spin = "clockwise";
>> +				rpm_avail = < 50 >;
>> +			};
>> +
>> +			spin_ctrl_2: motor-8 {
>> +				compatible = "ot,roller-coaster-motor";
>> +			};
>> +		};
>> +
>> +		rides_1: fairway-1 {
>> +			#address-cells = <1>;
>> +			#size-cells = <1>;
>> +			compatible = "ot,rides";
>> +			status = "disabled";
>> +			orientation = < 127 >;
>> +
>> +			ride@100 {
>> +				#address-cells = <1>;
>> +				#size-cells = <1>;
>> +				compatible = "ot,roller-coaster";
>> +				reg = < 0x00000100 0x100 >;
>> +				hvac-provider = < &hvac_1 >;
>> +				hvac-thermostat = < 29 > ;
>> +				hvac-zones = < 14 >;
>> +				hvac-zone-names = "operator";
>> +				spin-controller = < &spin_ctrl_2 5 &spin_ctrl_2 7 >;
>> +				spin-controller-names = "track_1", "track_2";
>> +				queues = < 2 >;
>> +
>> +				track@30 {
>> +					reg = < 0x00000030 0x10 >;
>> +				};
>> +
>> +				track@40 {
>> +					reg = < 0x00000040 0x10 >;
>> +				};
>> +
>> +			};
>> +		};
>> +
>> +		lights_1: lights@...00 {
>> +			compatible = "ot,work-lights";
>> +			reg = < 0x00030000 0x1000 >;
>> +			status = "disabled";
>> +		};
>> +
>> +		lights_2: lights@...00 {
>> +			compatible = "ot,show-lights";
>> +			reg = < 0x00040000 0x1000 >;
>> +			status = "disabled";
>> +			rate = < 13 138 >;
>> +		};
>> +
>> +		retail_1: vending@...00 {
>> +			reg = < 0x00050000 0x1000 >;
>> +			compatible = "ot,tickets";
>> +			status = "disabled";
>> +		};
>> +
>> +	};
>> +};
>> +
>> diff --git a/drivers/of/unittest-data/testcases.dts b/drivers/of/unittest-data/testcases.dts
>> index a85b5e1c381a..04b9e7bb30d9 100644
>> --- a/drivers/of/unittest-data/testcases.dts
>> +++ b/drivers/of/unittest-data/testcases.dts
>> @@ -2,19 +2,15 @@
>>  /dts-v1/;
>>  /plugin/;
>>  
>> +#include "testcases_common.dtsi"
>> +
>>  / {
> 
> Please add:
> 
>         /*
>          * testcase data that intentionally results in an error
>          * is located here instead of in testcases_common.dtsi
>          * so that the static overlay apply tests will not include
>          * the error
>          */
> 
>>  	testcase-data {
>> -		changeset {
>> -			prop-update = "hello";
>> -			prop-remove = "world";
>> -			node-remove {
>> -			};
>> +		testcase-device2 {
>> +			compatible = "testcase-device";
>> +			interrupt-parent = <&test_intc2>;
>> +			interrupts = <1>; /* invalid specifier - too short */
>>  		};
>>  	};
>> +
>>  };
>> -#include "tests-phandle.dtsi"
>> -#include "tests-interrupts.dtsi"
>> -#include "tests-match.dtsi"
>> -#include "tests-address.dtsi"
>> -#include "tests-platform.dtsi"
>> -#include "tests-overlay.dtsi"
>> diff --git a/drivers/of/unittest-data/testcases_common.dtsi b/drivers/of/unittest-data/testcases_common.dtsi
>> new file mode 100644
>> index 000000000000..19292bbb4cbb
>> --- /dev/null
>> +++ b/drivers/of/unittest-data/testcases_common.dtsi
>> @@ -0,0 +1,19 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +
>> +/ {
>> +	testcase-data {
>> +		changeset {
>> +			prop-update = "hello";
>> +			prop-remove = "world";
>> +			node-remove {
>> +			};
>> +		};
>> +	};
>> +};
>> +
>> +#include "tests-phandle.dtsi"
>> +#include "tests-interrupts.dtsi"
>> +#include "tests-match.dtsi"
>> +#include "tests-address.dtsi"
>> +#include "tests-platform.dtsi"
>> +#include "tests-overlay.dtsi"
>> diff --git a/drivers/of/unittest-data/tests-interrupts.dtsi b/drivers/of/unittest-data/tests-interrupts.dtsi
>> index ec175e800725..0e5914611107 100644
>> --- a/drivers/of/unittest-data/tests-interrupts.dtsi
>> +++ b/drivers/of/unittest-data/tests-interrupts.dtsi
>> @@ -61,12 +61,5 @@ testcase-device1 {
>>  			interrupt-parent = <&test_intc0>;
>>  			interrupts = <1>;
>>  		};
> 
> Please add:
> 
>                 /*
>                  * testcase data that intentionally results in an error
>                  * is located in testcases.dts instead of in this file
>                  * so that the static overlay apply tests will not include
>                  * the error
>                  */
> 
>> -
>> -		testcase-device2 {
>> -			compatible = "testcase-device";
>> -			interrupt-parent = <&test_intc2>;
>> -			interrupts = <1>; /* invalid specifier - too short */
>> -		};
>>  	};
>> -
>>  };
>>
> 

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