[RESEND v8 05/19] clk: mediatek: reset: Merge and revise reset register function

[Stephen Boyd]

Quoting Rex-BC Chen (2022-05-23 02:33:32)
> There are two versions for clock reset register control for MediaTek
> SoCs. The old hardware is one bit per reset control, and does not
> have separate registers for bit set, clear and read-back operations.
> This matches the scheme supported by the simple reset driver.
> 
> However, because we need to use different data structure from
> reset_simple_data, we can not use the operation of simple reset
> driver.
> For this reason, we keep the original functions and name this version
> as "MTK_RST_SIMPLE".
> 
> In this patch:
> - Add a version enumeration to separate different reset hardware.
> - Merge the reset register function of simple and set_clr into one
>   function "mtk_register_reset_controller".
> - Rename input variable "num_regs" to "rst_bank_nr" to avoid
>   confusion. This variable is used to define the quantity of reset bank.
> - Document mtk_reset_version and mtk_register_reset_controller.
> 
> Signed-off-by: Rex-BC Chen <rex-bc.chen at mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> Reviewed-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
> Tested-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
> ---

Applied to clk-next