linux-kernel - [PATCH net-next v3 0/3] Add support for VSC8531

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Message-ID: <20230511120808.28646-1-harini.katakam@amd.com>
Date:   Thu, 11 May 2023 17:38:05 +0530
From:   Harini Katakam <harini.katakam@....com>
To:     <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <kuba@...nel.org>, <edumazet@...gle.com>,
        <pabeni@...hat.com>, <vladimir.oltean@....com>,
        <wsa+renesas@...g-engineering.com>, <simon.horman@...igine.com>,
        <mkl@...gutronix.de>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <harinikatakamlinux@...il.com>, <michal.simek@....com>,
        <harini.katakam@....com>, <radhey.shyam.pandey@....com>
Subject: [PATCH net-next v3 0/3] Add support for VSC8531_02 PHY and DT RGMII tuning

Add support for VSC8531_02 PHY ID.
Also provide an option to change RGMII delay value via devicetree.

v3 changes:
- Remove patch 2/3 from v2 as custom mscc properties dont need to be
defined. rx-internal-delay-ps and tx-internal-delay-ps can be used.
- Change RGMII delay precedence as advised by Vladimir:
 phy-mode                       rgmii                          rgmii-rxid/rgmii-id
 --------------------------------------------------------------------------------------------
 rx-internal-delay-ps absent    0.2 ns                         2 ns
 rx-internal-delay-ps present   follow rx-internal-delay-ps    follow rx-internal-delay-ps
- Split VSC8531-02 and RGMII delay config into separate patches.
- Correct vendor ID
- Update commit description and subject everywhere to say RGMII delays
instead of RGMII tuning.

v2 changes:
- Added patch to use a common vendor phy id match
- Removed dt include header patch because delays should be specied in
ps, not register values
- Updated DT binding description and commit for optional delay tuning to
be clearer on the precedence
- Updated dt property name to include vendor instead of phy device name
- Switch both VSC8531 and VSC8531-02 to use exact phy id match as they
share the same model number
- Ensure RCT
- Improve optional property read


Harini Katakam (3):
  phy: mscc: Use PHY_ID_MATCH_VENDOR to minimize PHY ID table
  phy: mscc: Add support for RGMII delay configuration
  phy: mscc: Add support for VSC8531_02

 drivers/net/phy/mscc/mscc.h      |  4 ++
 drivers/net/phy/mscc/mscc_main.c | 75 ++++++++++++++++++++++----------
 2 files changed, 57 insertions(+), 22 deletions(-)

-- 
2.17.1