Re: [PATCH 4/5] soc: hisilicon: kunpeng_hccs: support low power feature for specified HCCS

lihuisong (C)
2024-08-09T04:06:30Z

Hi Krzyszto,

Thanks for your suggestion.

在 2024/7/28 19:55, Krzysztof Kozlowski 写道:
> On 18/07/2024 09:11, Huisong Li wrote:
>> This patch add the low power feature for specified HCCS by increasing
> Please do not use "This commit/patch/change", but imperative mood. See
> longer explanation here:
> https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95
got it. many thanks.
>
>> and decrasing the lane number of these HCCS ports on platform.
>>
>> Signed-off-by: Huisong Li <lihuisong@huawei.com>
>> ---
>> drivers/soc/hisilicon/Kconfig | 7 +-
>> drivers/soc/hisilicon/kunpeng_hccs.c | 377 ++++++++++++++++++++++++++-
>> drivers/soc/hisilicon/kunpeng_hccs.h | 14 +
>> 3 files changed, 394 insertions(+), 4 deletions(-)
> ...
>
>
>> +static struct kobj_attribute pm_types_attr =
>> + __ATTR(support_pm_types, 0444, support_pm_types_show, NULL);
>>
>> static ssize_t used_types_show(struct kobject *kobj,
>> struct kobj_attribute *attr, char *buf)
>> @@ -1213,11 +1551,46 @@ static struct kobj_attribute used_types_attr =
>> static void hccs_remove_misc_sysfs(struct hccs_dev *hdev)
>> {
>> sysfs_remove_file(&hdev->dev->kobj, &used_types_attr.attr);
>> + sysfs_remove_file(&hdev->dev->kobj, &pm_types_attr.attr);
>> +
>> + if (!(hdev->caps & HCCS_CAPS_HCCS_V2_PM))
>> + return;
>> +
>> + sysfs_remove_file(&hdev->dev->kobj, &dec_lane_attr.attr);
>> + sysfs_remove_file(&hdev->dev->kobj, &inc_lane_attr.attr);
>> }
>>
>> static int hccs_add_misc_sysfs(struct hccs_dev *hdev)
>> {
>> - return sysfs_create_file(&hdev->dev->kobj, &used_types_attr.attr);
>> + int ret;
>> +
>> + ret = sysfs_create_file(&hdev->dev->kobj, &used_types_attr.attr);
>> + if (ret)
>> + return ret;
>> +
>> + ret = sysfs_create_file(&hdev->dev->kobj, &pm_types_attr.attr);
> Where is the ABI documentation?
Ok, will split the doc patch and add doc with code patch.
>
> Best regards,
> Krzysztof
>
> .