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419747319e
Make MIIC accessory register unlock/lock behaviour selectable via SoC/OF data. Add init_unlock_lock_regs and miic_write to struct miic_of_data so the driver can either perform the traditional global unlock sequence (as used on RZ/N1) or use a different policy for other SoCs (for example RZ/T2H, which does not require leaving registers unlocked). miic_reg_writel() now calls the per-SoC miic_write callback to perform register writes. Provide miic_reg_writel_unlocked() as the default writer and set it for the RZ/N1 OF data so existing platforms keep the same behaviour. Add a miic_unlock_regs() helper that implements the accessory register unlock sequence so the unlock/lock sequence can be reused where needed (for example when a SoC requires explicit unlock/lock around individual accesses). This change is preparatory work for supporting RZ/T2H. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://patch.msgid.link/20250910204132.319975-9-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
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