| Message ID | 20200523170859.50003-7-sudeep.holla@arm.com (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | d7a1a4f47d804b32b3ca7a98b03425cf90cb9098 |
| Headers | show |
| Series | soc: Use custom soc attribute group and DEVICE_ATTR_RO | expand |
On Sat, May 23, 2020 at 7:09 PM Sudeep Holla <sudeep.holla@arm.com> wrote: > Commit c31e73121f4c ("base: soc: Handle custom soc information sysfs > entries") introduced custom soc attribute group in soc_device_attribute > structure but there are no users treewide. While trying to understand > the motivation and tried to use it, it was found lot of existing custom > attributes can moved to use it instead of device_create_file. > > Though most of these never remove/cleanup the custom attribute as they > never call soc_device_unregister, using these custom attribute group > eliminate the need for any cleanup as the driver infrastructure will > take care of that. > > Let us remove device_create_file and start using the custom attribute > group in soc_device_attribute. > > Cc: Linus Walleij <linus.walleij@linaro.org> > Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij
diff --git a/drivers/soc/ux500/ux500-soc-id.c b/drivers/soc/ux500/ux500-soc-id.c index 55ceb67e066b..a9472e0e5d61 100644 --- a/drivers/soc/ux500/ux500-soc-id.c +++ b/drivers/soc/ux500/ux500-soc-id.c @@ -157,6 +157,13 @@ process_show(struct device *dev, struct device_attribute *attr, char *buf) static DEVICE_ATTR_RO(process); +static struct attribute *ux500_soc_attrs[] = { + &dev_attr_process.attr, + NULL +}; + +ATTRIBUTE_GROUPS(ux500_soc); + static const char *db8500_read_soc_id(struct device_node *backupram) { void __iomem *base; @@ -185,11 +192,11 @@ static void __init soc_info_populate(struct soc_device_attribute *soc_dev_attr, soc_dev_attr->machine = ux500_get_machine(); soc_dev_attr->family = ux500_get_family(); soc_dev_attr->revision = ux500_get_revision(); + soc_dev_attr->custom_attr_group = ux500_soc_groups[0]; } static int __init ux500_soc_device_init(void) { - struct device *parent; struct soc_device *soc_dev; struct soc_device_attribute *soc_dev_attr; struct device_node *backupram; @@ -215,9 +222,6 @@ static int __init ux500_soc_device_init(void) return PTR_ERR(soc_dev); } - parent = soc_device_to_device(soc_dev); - device_create_file(parent, &dev_attr_process); - return 0; } subsys_initcall(ux500_soc_device_init);
Commit c31e73121f4c ("base: soc: Handle custom soc information sysfs entries") introduced custom soc attribute group in soc_device_attribute structure but there are no users treewide. While trying to understand the motivation and tried to use it, it was found lot of existing custom attributes can moved to use it instead of device_create_file. Though most of these never remove/cleanup the custom attribute as they never call soc_device_unregister, using these custom attribute group eliminate the need for any cleanup as the driver infrastructure will take care of that. Let us remove device_create_file and start using the custom attribute group in soc_device_attribute. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> --- drivers/soc/ux500/ux500-soc-id.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)