* [RESEND PATCH v1 1/4] dt-bindings: power: reset: Convert reboot-mode to YAML
2020-08-18 18:54 [RESEND PATCH v1 0/4] Support spaces in reboot mode framework Elliot Berman
@ 2020-08-18 18:54 ` Elliot Berman
2020-08-25 16:21 ` Sebastian Reichel
2020-08-18 18:54 ` [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format Elliot Berman
` (2 subsequent siblings)
3 siblings, 1 reply; 9+ messages in thread
From: Elliot Berman @ 2020-08-18 18:54 UTC (permalink / raw)
To: Sebastian Reichel, Andy Yan, Bjorn Andersson, Andy Gross, Rob Herring
Cc: Elliot Berman, linux-pm, linux-arm-msm, devicetree, linux-kernel,
Trilok Soni, Prasad Sodagudi
Convert reboot-mode bindings to YAML.
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
.../bindings/power/reset/reboot-mode.txt | 25 ------------
.../bindings/power/reset/reboot-mode.yaml | 47 ++++++++++++++++++++++
2 files changed, 47 insertions(+), 25 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/power/reset/reboot-mode.txt
create mode 100644 Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.txt b/Documentation/devicetree/bindings/power/reset/reboot-mode.txt
deleted file mode 100644
index de34f27..0000000
--- a/Documentation/devicetree/bindings/power/reset/reboot-mode.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Generic reboot mode core map driver
-
-This driver get reboot mode arguments and call the write
-interface to store the magic value in special register
-or ram. Then the bootloader can read it and take different
-action according to the argument stored.
-
-All mode properties are vendor specific, it is a indication to tell
-the bootloader what to do when the system reboots, and should be named
-as mode-xxx = <magic> (xxx is mode name, magic should be a none-zero value).
-
-For example modes common on Android platform:
-- mode-normal: Normal reboot mode, system reboot with command "reboot".
-- mode-recovery: Android Recovery mode, it is a mode to format the device or update a new image.
-- mode-bootloader: Android fastboot mode, it's a mode to re-flash partitions on the Android based device.
-- mode-loader: A bootloader mode, it's a mode used to download image on Rockchip platform,
- usually used in development.
-
-Example:
- reboot-mode {
- mode-normal = <BOOT_NORMAL>;
- mode-recovery = <BOOT_RECOVERY>;
- mode-bootloader = <BOOT_FASTBOOT>;
- mode-loader = <BOOT_BL_DOWNLOAD>;
- }
diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
new file mode 100644
index 0000000..a6c9102
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/power/reset/reboot-mode.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic reboot mode core map
+
+maintainers:
+ - Andy Yan <andy.yan@rock-chips.com>
+
+description: |
+ This driver get reboot mode arguments and call the write
+ interface to store the magic value in special register
+ or ram. Then the bootloader can read it and take different
+ action according to the argument stored.
+
+ All mode properties are vendor specific, it is a indication to tell
+ the bootloader what to do when the system reboots, and should be named
+ as mode-xxx = <magic> (xxx is mode name, magic should be a non-zero value).
+
+ For example, modes common Android platform are:
+ - normal: Normal reboot mode, system reboot with command "reboot".
+ - recovery: Android Recovery mode, it is a mode to format the device or update a new image.
+ - bootloader: Android fastboot mode, it's a mode to re-flash partitions on the Android based device.
+ - loader: A bootloader mode, it's a mode used to download image on Rockchip platform,
+ usually used in development.
+
+properties:
+ mode-normal:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: |
+ Default value to set on a reboot if no command was provided.
+
+patternProperties:
+ "^mode-.*$":
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+examples:
+ - |
+ reboot-mode {
+ mode-normal = <0>;
+ mode-recovery = <1>;
+ mode-bootloader = <2>;
+ mode-loader = <3>;
+ };
+...
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [RESEND PATCH v1 1/4] dt-bindings: power: reset: Convert reboot-mode to YAML
2020-08-18 18:54 ` [RESEND PATCH v1 1/4] dt-bindings: power: reset: Convert reboot-mode to YAML Elliot Berman
@ 2020-08-25 16:21 ` Sebastian Reichel
0 siblings, 0 replies; 9+ messages in thread
From: Sebastian Reichel @ 2020-08-25 16:21 UTC (permalink / raw)
To: Elliot Berman
Cc: Andy Yan, Bjorn Andersson, Andy Gross, Rob Herring, linux-pm,
linux-arm-msm, devicetree, linux-kernel, Trilok Soni,
Prasad Sodagudi
[-- Attachment #1: Type: text/plain, Size: 4315 bytes --]
Hi,
Thanks, queued.
-- Sebastian
On Tue, Aug 18, 2020 at 11:54:13AM -0700, Elliot Berman wrote:
> Convert reboot-mode bindings to YAML.
>
> Signed-off-by: Elliot Berman <eberman@codeaurora.org>
> ---
> .../bindings/power/reset/reboot-mode.txt | 25 ------------
> .../bindings/power/reset/reboot-mode.yaml | 47 ++++++++++++++++++++++
> 2 files changed, 47 insertions(+), 25 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/power/reset/reboot-mode.txt
> create mode 100644 Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
>
> diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.txt b/Documentation/devicetree/bindings/power/reset/reboot-mode.txt
> deleted file mode 100644
> index de34f27..0000000
> --- a/Documentation/devicetree/bindings/power/reset/reboot-mode.txt
> +++ /dev/null
> @@ -1,25 +0,0 @@
> -Generic reboot mode core map driver
> -
> -This driver get reboot mode arguments and call the write
> -interface to store the magic value in special register
> -or ram. Then the bootloader can read it and take different
> -action according to the argument stored.
> -
> -All mode properties are vendor specific, it is a indication to tell
> -the bootloader what to do when the system reboots, and should be named
> -as mode-xxx = <magic> (xxx is mode name, magic should be a none-zero value).
> -
> -For example modes common on Android platform:
> -- mode-normal: Normal reboot mode, system reboot with command "reboot".
> -- mode-recovery: Android Recovery mode, it is a mode to format the device or update a new image.
> -- mode-bootloader: Android fastboot mode, it's a mode to re-flash partitions on the Android based device.
> -- mode-loader: A bootloader mode, it's a mode used to download image on Rockchip platform,
> - usually used in development.
> -
> -Example:
> - reboot-mode {
> - mode-normal = <BOOT_NORMAL>;
> - mode-recovery = <BOOT_RECOVERY>;
> - mode-bootloader = <BOOT_FASTBOOT>;
> - mode-loader = <BOOT_BL_DOWNLOAD>;
> - }
> diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> new file mode 100644
> index 0000000..a6c9102
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/reset/reboot-mode.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Generic reboot mode core map
> +
> +maintainers:
> + - Andy Yan <andy.yan@rock-chips.com>
> +
> +description: |
> + This driver get reboot mode arguments and call the write
> + interface to store the magic value in special register
> + or ram. Then the bootloader can read it and take different
> + action according to the argument stored.
> +
> + All mode properties are vendor specific, it is a indication to tell
> + the bootloader what to do when the system reboots, and should be named
> + as mode-xxx = <magic> (xxx is mode name, magic should be a non-zero value).
> +
> + For example, modes common Android platform are:
> + - normal: Normal reboot mode, system reboot with command "reboot".
> + - recovery: Android Recovery mode, it is a mode to format the device or update a new image.
> + - bootloader: Android fastboot mode, it's a mode to re-flash partitions on the Android based device.
> + - loader: A bootloader mode, it's a mode used to download image on Rockchip platform,
> + usually used in development.
> +
> +properties:
> + mode-normal:
> + $ref: /schemas/types.yaml#/definitions/uint32
> + description: |
> + Default value to set on a reboot if no command was provided.
> +
> +patternProperties:
> + "^mode-.*$":
> + $ref: /schemas/types.yaml#/definitions/uint32
> +
> +examples:
> + - |
> + reboot-mode {
> + mode-normal = <0>;
> + mode-recovery = <1>;
> + mode-bootloader = <2>;
> + mode-loader = <3>;
> + };
> +...
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 9+ messages in thread
* [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format
2020-08-18 18:54 [RESEND PATCH v1 0/4] Support spaces in reboot mode framework Elliot Berman
2020-08-18 18:54 ` [RESEND PATCH v1 1/4] dt-bindings: power: reset: Convert reboot-mode to YAML Elliot Berman
@ 2020-08-18 18:54 ` Elliot Berman
2020-08-25 16:23 ` Sebastian Reichel
2020-08-25 21:25 ` Rob Herring
2020-08-18 18:54 ` [RESEND PATCH v1 3/4] power: reset: Add support for reboot mode alternate properties Elliot Berman
2020-08-18 18:54 ` [RESEND PATCH v1 4/4] arm64: dts: qcom: pm8150: Add reboot magic Elliot Berman
3 siblings, 2 replies; 9+ messages in thread
From: Elliot Berman @ 2020-08-18 18:54 UTC (permalink / raw)
To: Sebastian Reichel, Andy Yan, Bjorn Andersson, Andy Gross, Rob Herring
Cc: Elliot Berman, linux-pm, linux-arm-msm, devicetree, linux-kernel,
Trilok Soni, Prasad Sodagudi
Current reboot-mode device tree schema does not support reboot commands
with spaces in them [1]. Add an optional new node "reboot-mode-names"
and "reboot-mode-magic" which add an array of strings and u32s,
respectively which would permit any string in this framework.
[1]:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/md/dm-verity-target.c?h=v5.5#n255
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
.../devicetree/bindings/power/reset/reboot-mode.yaml | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
index a6c9102..4ea6b33 100644
--- a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
+++ b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
@@ -19,6 +19,9 @@ description: |
the bootloader what to do when the system reboots, and should be named
as mode-xxx = <magic> (xxx is mode name, magic should be a non-zero value).
+ reboot-mode-magic and reboot-mode-names may be used in addition/instead of
+ mode-xxx style.
+
For example, modes common Android platform are:
- normal: Normal reboot mode, system reboot with command "reboot".
- recovery: Android Recovery mode, it is a mode to format the device or update a new image.
@@ -32,6 +35,14 @@ properties:
description: |
Default value to set on a reboot if no command was provided.
+ reboot-mode-names:
+ $ref: /schemas/types.yaml#/definitions/string-array
+ description: List of reboot commands, paired with reboot-mode-magic by index
+
+ reboot-mode-magic:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description: List of reboot magic, paired with reboot-mode-names by index
+
patternProperties:
"^mode-.*$":
$ref: /schemas/types.yaml#/definitions/uint32
@@ -44,4 +55,10 @@ examples:
mode-bootloader = <2>;
mode-loader = <3>;
};
+
+ - |
+ reboot-mode {
+ reboot-mode-names = "normal", "bootloader", "dm-verity device corrupted";
+ reboot-mode-magic = <0x0>, <0x1>, <0xf>;
+ };
...
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format
2020-08-18 18:54 ` [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format Elliot Berman
@ 2020-08-25 16:23 ` Sebastian Reichel
2020-08-25 21:25 ` Rob Herring
1 sibling, 0 replies; 9+ messages in thread
From: Sebastian Reichel @ 2020-08-25 16:23 UTC (permalink / raw)
To: Elliot Berman
Cc: Andy Yan, Bjorn Andersson, Andy Gross, Rob Herring, linux-pm,
linux-arm-msm, devicetree, linux-kernel, Trilok Soni,
Prasad Sodagudi
[-- Attachment #1: Type: text/plain, Size: 2606 bytes --]
Hi,
On Tue, Aug 18, 2020 at 11:54:14AM -0700, Elliot Berman wrote:
> Current reboot-mode device tree schema does not support reboot commands
> with spaces in them [1]. Add an optional new node "reboot-mode-names"
> and "reboot-mode-magic" which add an array of strings and u32s,
> respectively which would permit any string in this framework.
>
> [1]:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/md/dm-verity-target.c?h=v5.5#n255
>
> Signed-off-by: Elliot Berman <eberman@codeaurora.org>
> ---
I'm waiting for an Ack from Rob for this one.
-- Sebastian
> .../devicetree/bindings/power/reset/reboot-mode.yaml | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> index a6c9102..4ea6b33 100644
> --- a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> +++ b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> @@ -19,6 +19,9 @@ description: |
> the bootloader what to do when the system reboots, and should be named
> as mode-xxx = <magic> (xxx is mode name, magic should be a non-zero value).
>
> + reboot-mode-magic and reboot-mode-names may be used in addition/instead of
> + mode-xxx style.
> +
> For example, modes common Android platform are:
> - normal: Normal reboot mode, system reboot with command "reboot".
> - recovery: Android Recovery mode, it is a mode to format the device or update a new image.
> @@ -32,6 +35,14 @@ properties:
> description: |
> Default value to set on a reboot if no command was provided.
>
> + reboot-mode-names:
> + $ref: /schemas/types.yaml#/definitions/string-array
> + description: List of reboot commands, paired with reboot-mode-magic by index
> +
> + reboot-mode-magic:
> + $ref: /schemas/types.yaml#/definitions/uint32-array
> + description: List of reboot magic, paired with reboot-mode-names by index
> +
> patternProperties:
> "^mode-.*$":
> $ref: /schemas/types.yaml#/definitions/uint32
> @@ -44,4 +55,10 @@ examples:
> mode-bootloader = <2>;
> mode-loader = <3>;
> };
> +
> + - |
> + reboot-mode {
> + reboot-mode-names = "normal", "bootloader", "dm-verity device corrupted";
> + reboot-mode-magic = <0x0>, <0x1>, <0xf>;
> + };
> ...
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format
2020-08-18 18:54 ` [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format Elliot Berman
2020-08-25 16:23 ` Sebastian Reichel
@ 2020-08-25 21:25 ` Rob Herring
2020-08-26 18:39 ` Elliot Berman
1 sibling, 1 reply; 9+ messages in thread
From: Rob Herring @ 2020-08-25 21:25 UTC (permalink / raw)
To: Elliot Berman
Cc: Sebastian Reichel, Andy Yan, Bjorn Andersson, Andy Gross,
linux-pm, linux-arm-msm, devicetree, linux-kernel, Trilok Soni,
Prasad Sodagudi
On Tue, Aug 18, 2020 at 11:54:14AM -0700, Elliot Berman wrote:
> Current reboot-mode device tree schema does not support reboot commands
> with spaces in them [1]. Add an optional new node "reboot-mode-names"
> and "reboot-mode-magic" which add an array of strings and u32s,
> respectively which would permit any string in this framework.
Kind of a weak justification. The intent was for the names to be a key,
not a multi word description which your example seems to be. Is
"dm-verity device corrupted" something Android has already standardized
on?
>
> [1]:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/md/dm-verity-target.c?h=v5.5#n255
>
> Signed-off-by: Elliot Berman <eberman@codeaurora.org>
> ---
> .../devicetree/bindings/power/reset/reboot-mode.yaml | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> index a6c9102..4ea6b33 100644
> --- a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> +++ b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
> @@ -19,6 +19,9 @@ description: |
> the bootloader what to do when the system reboots, and should be named
> as mode-xxx = <magic> (xxx is mode name, magic should be a non-zero value).
>
> + reboot-mode-magic and reboot-mode-names may be used in addition/instead of
> + mode-xxx style.
It should be either/or in my opinion, not both.
> +
> For example, modes common Android platform are:
> - normal: Normal reboot mode, system reboot with command "reboot".
> - recovery: Android Recovery mode, it is a mode to format the device or update a new image.
> @@ -32,6 +35,14 @@ properties:
> description: |
> Default value to set on a reboot if no command was provided.
>
> + reboot-mode-names:
> + $ref: /schemas/types.yaml#/definitions/string-array
> + description: List of reboot commands, paired with reboot-mode-magic by index
> +
> + reboot-mode-magic:
'reboot-modes' would align with normal patterns.
> + $ref: /schemas/types.yaml#/definitions/uint32-array
> + description: List of reboot magic, paired with reboot-mode-names by index
> +
> patternProperties:
> "^mode-.*$":
> $ref: /schemas/types.yaml#/definitions/uint32
> @@ -44,4 +55,10 @@ examples:
> mode-bootloader = <2>;
> mode-loader = <3>;
> };
> +
> + - |
> + reboot-mode {
> + reboot-mode-names = "normal", "bootloader", "dm-verity device corrupted";
> + reboot-mode-magic = <0x0>, <0x1>, <0xf>;
> + };
> ...
> --
> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
>
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format
2020-08-25 21:25 ` Rob Herring
@ 2020-08-26 18:39 ` Elliot Berman
0 siblings, 0 replies; 9+ messages in thread
From: Elliot Berman @ 2020-08-26 18:39 UTC (permalink / raw)
To: Rob Herring, ebiggers, samitolvanen
Cc: Sebastian Reichel, Andy Yan, Bjorn Andersson, Andy Gross,
linux-pm, linux-arm-msm, devicetree, linux-kernel, Trilok Soni,
Prasad Sodagudi
On 8/25/2020 5:25 PM, Rob Herring wrote:
> On Tue, Aug 18, 2020 at 11:54:14AM -0700, Elliot Berman wrote:
>> Current reboot-mode device tree schema does not support reboot commands
>> with spaces in them [1]. Add an optional new node "reboot-mode-names"
>> and "reboot-mode-magic" which add an array of strings and u32s,
>> respectively which would permit any string in this framework.
>
> Kind of a weak justification. The intent was for the names to be a key,
> not a multi word description which your example seems to be. Is
> "dm-verity device corrupted" something Android has already standardized
> on?
+Eric/Sami to comment further
I wonder if you're thinking it's better to change the kernel_restart in
dm-verity-target.c?
Alternatively, I could respin so that spaces in the reboot cmd is
replaced with "-" in reboot_mode_notify(). This way, there is no need to
change dm-verity driver or change devicetree schema. i.e.:
@@ -44,9 +44,13 @@ static int reboot_mode_notify(struct notifier_block
*this,
{
struct reboot_mode_driver *reboot;
unsigned int magic;
+ char *reboot_cmd;
+
+ reboot_cmd = kstrdup(cmd, GFP_KERNEL);
+ strreplace(reboot_cmd, ' ', '-');
reboot = container_of(this, struct reboot_mode_driver,
reboot_notifier);
- magic = get_reboot_mode_magic(reboot, cmd);
+ magic = get_reboot_mode_magic(reboot, reboot_cmd);
if (magic)
reboot->write(reboot, magic);
>
>>
>> [1]:
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/md/dm-verity-target.c?h=v5.5#n255
>>
>> Signed-off-by: Elliot Berman <eberman@codeaurora.org>
>> ---
>> .../devicetree/bindings/power/reset/reboot-mode.yaml | 17 +++++++++++++++++
>> 1 file changed, 17 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
>> index a6c9102..4ea6b33 100644
>> --- a/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
>> +++ b/Documentation/devicetree/bindings/power/reset/reboot-mode.yaml
>> @@ -19,6 +19,9 @@ description: |
>> the bootloader what to do when the system reboots, and should be named
>> as mode-xxx = <magic> (xxx is mode name, magic should be a non-zero value).
>>
>> + reboot-mode-magic and reboot-mode-names may be used in addition/instead of
>> + mode-xxx style.
>
> It should be either/or in my opinion, not both.
OK, I can fix in the next patch.
>
>> +
>> For example, modes common Android platform are:
>> - normal: Normal reboot mode, system reboot with command "reboot".
>> - recovery: Android Recovery mode, it is a mode to format the device or update a new image.
>> @@ -32,6 +35,14 @@ properties:
>> description: |
>> Default value to set on a reboot if no command was provided.
>>
>> + reboot-mode-names:
>> + $ref: /schemas/types.yaml#/definitions/string-array
>> + description: List of reboot commands, paired with reboot-mode-magic by index
>> +
>> + reboot-mode-magic:
>
> 'reboot-modes' would align with normal patterns.
Ditto
>
>> + $ref: /schemas/types.yaml#/definitions/uint32-array
>> + description: List of reboot magic, paired with reboot-mode-names by index
>> +
>> patternProperties:
>> "^mode-.*$":
>> $ref: /schemas/types.yaml#/definitions/uint32
>> @@ -44,4 +55,10 @@ examples:
>> mode-bootloader = <2>;
>> mode-loader = <3>;
>> };
>> +
>> + - |
>> + reboot-mode {
>> + reboot-mode-names = "normal", "bootloader", "dm-verity device corrupted";
>> + reboot-mode-magic = <0x0>, <0x1>, <0xf>;
>> + };
>> ...
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>> a Linux Foundation Collaborative Project
>>
^ permalink raw reply [flat|nested] 9+ messages in thread
* [RESEND PATCH v1 3/4] power: reset: Add support for reboot mode alternate properties
2020-08-18 18:54 [RESEND PATCH v1 0/4] Support spaces in reboot mode framework Elliot Berman
2020-08-18 18:54 ` [RESEND PATCH v1 1/4] dt-bindings: power: reset: Convert reboot-mode to YAML Elliot Berman
2020-08-18 18:54 ` [RESEND PATCH v1 2/4] dt-bindings: power: reset: Add alternate reboot mode format Elliot Berman
@ 2020-08-18 18:54 ` Elliot Berman
2020-08-18 18:54 ` [RESEND PATCH v1 4/4] arm64: dts: qcom: pm8150: Add reboot magic Elliot Berman
3 siblings, 0 replies; 9+ messages in thread
From: Elliot Berman @ 2020-08-18 18:54 UTC (permalink / raw)
To: Sebastian Reichel, Andy Yan, Bjorn Andersson, Andy Gross, Rob Herring
Cc: Elliot Berman, linux-pm, linux-arm-msm, devicetree, linux-kernel,
Trilok Soni, Prasad Sodagudi
Reboot mode driver does not currently support reboot commands with
spaces in them [1]. Add an optional new node "reboot-mode-names" and
"reboot-mode-magic" which add an array of strings and u32s, respectively
which would permit any string in this framework.
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
drivers/power/reset/reboot-mode.c | 42 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 41 insertions(+), 1 deletion(-)
diff --git a/drivers/power/reset/reboot-mode.c b/drivers/power/reset/reboot-mode.c
index b4076b1..363734d 100644
--- a/drivers/power/reset/reboot-mode.c
+++ b/drivers/power/reset/reboot-mode.c
@@ -64,8 +64,9 @@ int reboot_mode_register(struct reboot_mode_driver *reboot)
struct mode_info *info;
struct property *prop;
struct device_node *np = reboot->dev->of_node;
+ const char *mode_name;
size_t len = strlen(PREFIX);
- int ret;
+ int ret, count, i;
INIT_LIST_HEAD(&reboot->head);
@@ -101,6 +102,45 @@ int reboot_mode_register(struct reboot_mode_driver *reboot)
list_add_tail(&info->list, &reboot->head);
}
+ count = of_property_count_u32_elems(np, "reboot-mode-magic");
+ for (i = 0; i < count; i++) {
+ info = devm_kzalloc(reboot->dev, sizeof(*info), GFP_KERNEL);
+ if (!info) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ if (of_property_read_string_index(np, "reboot-mode-names", i,
+ &mode_name)) {
+ dev_err(reboot->dev, "unable to read reboot-mode-names[%d]\n",
+ i);
+ ret = -EINVAL;
+ goto error;
+ }
+ info->mode = kstrdup_const(mode_name, GFP_KERNEL);
+ if (!info->mode) {
+ ret = -ENOMEM;
+ goto error;
+ } else if (info->mode[0] == '\0') {
+ dev_err(reboot->dev, "invalid reboot-mode-names[%d]: too short!\n",
+ i);
+ kfree_const(info->mode);
+ ret = -EINVAL;
+ goto error;
+ }
+
+ if (of_property_read_u32_index(np, "reboot-mode-magic", i,
+ &info->magic)) {
+ dev_err(reboot->dev, "unable to read reboot-mode-magic[%d]\n",
+ i);
+ kfree_const(info->mode);
+ ret = -EINVAL;
+ goto error;
+ }
+
+ list_add_tail(&info->list, &reboot->head);
+ }
+
reboot->reboot_notifier.notifier_call = reboot_mode_notify;
register_reboot_notifier(&reboot->reboot_notifier);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply related [flat|nested] 9+ messages in thread
* [RESEND PATCH v1 4/4] arm64: dts: qcom: pm8150: Add reboot magic
2020-08-18 18:54 [RESEND PATCH v1 0/4] Support spaces in reboot mode framework Elliot Berman
` (2 preceding siblings ...)
2020-08-18 18:54 ` [RESEND PATCH v1 3/4] power: reset: Add support for reboot mode alternate properties Elliot Berman
@ 2020-08-18 18:54 ` Elliot Berman
3 siblings, 0 replies; 9+ messages in thread
From: Elliot Berman @ 2020-08-18 18:54 UTC (permalink / raw)
To: Sebastian Reichel, Andy Yan, Bjorn Andersson, Andy Gross, Rob Herring
Cc: Elliot Berman, linux-pm, linux-arm-msm, devicetree, linux-kernel,
Trilok Soni, Prasad Sodagudi
Add reboot command magic values for pm8150 pon device.
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
arch/arm64/boot/dts/qcom/pm8150.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/pm8150.dtsi b/arch/arm64/boot/dts/qcom/pm8150.dtsi
index 1b64069..afd6231 100644
--- a/arch/arm64/boot/dts/qcom/pm8150.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8150.dtsi
@@ -50,6 +50,11 @@
pon: power-on@800 {
compatible = "qcom,pm8916-pon";
reg = <0x0800>;
+
+ reboot-mode-names = "bootloader", "recovery",
+ "dm-verity device corrupted";
+ reboot-mode-magic = <0x1>, <0x2>, <0x4>;
+
pwrkey {
compatible = "qcom,pm8941-pwrkey";
interrupts = <0x0 0x8 0x0 IRQ_TYPE_EDGE_BOTH>;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
^ permalink raw reply related [flat|nested] 9+ messages in thread