linux-kernel - [PATCH v5 0/2] Add new PHY APIs to framework to get/set PHY attributes

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Date:   Mon, 24 Aug 2020 20:28:29 +0200
From:   Swapnil Jakhade <sjakhade@...ence.com>
To:     <vkoul@...nel.org>, <kishon@...com>,
        <linux-kernel@...r.kernel.org>, <maxime@...no.tech>,
        <Laurent.pinchart@...asonboard.com>
CC:     <mparab@...ence.com>, <sjakhade@...ence.com>,
        <yamonkar@...ence.com>, <nsekhar@...com>, <tomi.valkeinen@...com>,
        <jsarha@...com>, <praneeth@...com>
Subject: [PATCH v5 0/2] Add new PHY APIs to framework to get/set PHY attributes

This patch series adds a new pair of PHY APIs that can be used to get/set
all the PHY attributes. It also adds a new PHY attribute max_link_rate.

It includes following patches:

1. v5-0001-phy-Add-new-PHY-attribute-max_link_rate-and-APIs-.patch
This patch adds max_link_rate as a new PHY attribute along with a pair of
APIs that allow using the generic PHY subsystem to get/set PHY attributes
supported by the PHY.

2. v5-0002-phy-cadence-torrent-Use-kernel-PHY-API-to-set-PHY.patch
This patch uses PHY API phy_set_attrs() to set corresponding PHY properties
in Cadence Torrent PHY driver. This will enable drivers using this PHY to
read these properties using PHY framework.

The phy_get_attrs() API will be used in the DRM bridge driver [1] which is
in the process of upstreaming.

[1]

https://lkml.org/lkml/2020/8/6/649

Version History:

v5:
    - Add kernel-doc comments for phy_get_attrs/phy_set_attrs APIs
    - Pass second parameter of phy_set_attrs() as const struct *
    - Add Acked-by: Kishon Vijay Abraham I <kishon@...com>

v4:
    - Protect phy_get_attrs/phy_set_attrs APIs with mutex

v3:
    - Add comment describing new PHY attribute max_link_rate
    - Use of memcpy to copy structure members
    - Change commit log a bit

v2:
    - Implemented single pair of functions to get/set all PHY attributes

Swapnil Jakhade (2):
  phy: Add new PHY attribute max_link_rate and APIs to get/set PHY
    attributes
  phy: cadence-torrent: Use kernel PHY API to set PHY attributes

 drivers/phy/cadence/phy-cadence-torrent.c |  7 ++++
 include/linux/phy/phy.h                   | 43 +++++++++++++++++++++++
 2 files changed, 50 insertions(+)

-- 
2.26.1