kernel.git/drivers/ptp/ptp_sysfs.c, branch linux-4.4.y

ptp: create "pins" together with the rest of attributes

2020-05-20T06:11:40Z

commit 85a66e55019583da1e0f18706b7a8281c9f6de5b upstream. Let's switch to using device_create_with_groups(), which will allow us to create "pins" attribute group together with the rest of ptp device attributes, and before userspace gets notified about ptp device creation. Signed-off-by: Dmitry Torokhov Signed-off-by: David S. Miller [bwh: Backported to 4.9: adjust context] Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman

ptp: use is_visible method to hide unused attributes

2020-05-20T06:11:39Z

commit af59e717d5ff9c8dbf9bcc581c0dfb3b2a9c9030 upstream. Instead of creating selected attributes after the device is created (and after userspace potentially seen uevent), lets use attribute group is_visible() method to control which attributes are shown. This will allow us to create all attributes (except "pins" group, which will be taken care of later) before userspace gets notified about new ptp class device. Signed-off-by: Dmitry Torokhov Signed-off-by: David S. Miller Signed-off-by: Ben Hutchings Signed-off-by: Greg Kroah-Hartman

ptp: expose the programmable pins via sysfs

2014-03-21T18:21:14Z

This patch adds the sysfs hooks needed in order to get and set the programmable pin settings. Signed-off-by: Richard Cochran Signed-off-by: David S. Miller

PTP: convert class code to use dev_groups

2013-07-27T01:05:17Z

The dev_attrs field of struct class is going away soon, dev_groups should be used instead. This converts the ptp class code to use the correct field. Acked-by: Richard Cochran Signed-off-by: Greg Kroah-Hartman

ptp: Added a brand new class driver for ptp clocks.

2011-05-23T20:01:00Z

This patch adds an infrastructure for hardware clocks that implement IEEE 1588, the Precision Time Protocol (PTP). A class driver offers a registration method to particular hardware clock drivers. Each clock is presented as a standard POSIX clock. The ancillary clock features are exposed in two different ways, via the sysfs and by a character device. Signed-off-by: Richard Cochran Acked-by: Arnd Bergmann Acked-by: David S. Miller Signed-off-by: John Stultz