From: David S. Miller Date: Mon, 5 Jun 2023 08:56:36 +0000 (+0100) Subject: Merge branch 'regmap-TSE-PCS' X-Git-Tag: v6.6.17~4555^2~175 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f91e32dea63930ef9dfd3382d757865d9455cfb1;p=platform%2Fkernel%2Flinux-rpi.git Merge branch 'regmap-TSE-PCS' Maxime Chevallier says: ==================== net: add a regmap-based mdio driver and drop TSE PCS This is the V4 of a series that follows-up on the work [1] aiming to drop the altera TSE PCS driver, as it turns out to be a version of the Lynx PCS exposed as a memory-mapped block, instead of living on an MDIO bus. One step of this removal involved creating a regmap-based mdio driver that translates MDIO accesses into the actual underlying bus that exposes the register. The register layout must of course match the standard MDIO layout, but we can now account for differences in stride with recent work on the regmap subsystem [2]. Sorry for repeating this, but I didn't hear anything on this matter in previous iterations, Mark, Net maintainers, this series depends on the patch e12ff2876493 that was recently merged into the regmap tree [3]. For this series to be usable in net-next, this patch must be applied beforehand. Should Mark create a tag that would then be merged into net-next ? Or should we just wait for the next release to merge this into net-next ? This series introduces a new MDIO driver, and uses it to convert Altera TSE from the actual TSE PCS driver to Lynx PCS. Since it turns out dwmac_socfpga also uses a TSE PCS block, port that driver to Lynx as well. Changes in V4 : - Use new pcs_lynx_create/destroy helpers added by Russell - Rework the cleanup sequence to avoid leaking data - Rework a bit KConfig to properly select dependencies - Fix a few hiccups with misplaced hunks in 2 commits Changes in V3 : - Use a dedicated struct for the mii bus's priv data, to avoid duplicating the whole struct mdio_regmap_config, from which 2 fields only are necessary after init, as suggested by Russell - Use ~0 instead of ~0UL for the no-scan bitmask, following Simon's review. Changes in V2 : - Use phy_mask to avoid unnecessarily scanning the whole mdio bus - Go one step further and completely disable scanning if users set the .autoscan flag to false, in case the mdiodevice isn't an actual PHY (a PCS for example). ==================== Signed-off-by: David S. Miller --- f91e32dea63930ef9dfd3382d757865d9455cfb1