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Markus Stockhausen
2d2f0fbc70
The regmap conversion only replaced the old sw() macros with their regmap counterparts. Neither access optimization nor error handling took place. Redesign the mdio access as follows: - The c22/c45/read/write functions only prepare a data structure that describes the to-be-executed command. - rtmdio_xxxx_run_cmd() is enhanced to bulk write the data into the SoC, issue all the I/O and do proper error handling. Additionally the signature is changed to allow read & write operations. The bulk commands introduce some subtle changes. - Before this patch only the needed registers were written. After the conversion all phy control registers are set up. - The register write order changes This is no issue as the hardware starts operation when issuing the run_cmd() and only accesses the needed registers per operation. For now adapt only the RTL838x path. Where needed rename "err" to "ret" for consistency with kernel conventions. Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de> Link: https://github.com/openwrt/openwrt/pull/23092 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>