[PATCH v2 1/2] clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops

[Nícolas F. R. A. Prado]

On Wed, Jul 13, 2022 at 04:21:10PM +0800, Chen-Yu Tsai wrote:
> In the previous commits that added CLK_OPS_PARENT_ENABLE, support for
> this flag was only added to rate change operations (rate setting and
> reparent) and disabling unused subtree. It was not added to the
> clock gate related operations. Any hardware driver that needs it for
> these operations will either see bogus results, or worse, hang.
> 
> This has been seen on MT8192 and MT8195, where the imp_ii2_* clk
> drivers set this, but dumping debugfs clk_summary would cause it
> to hang.
> 
> Fixes: fc8726a2c021 ("clk: core: support clocks which requires parents enable (part 2)")
> Fixes: a4b3518d146f ("clk: core: support clocks which requires parents enable (part 1)")
> Signed-off-by: Chen-Yu Tsai <wenst at chromium.org>

Reviewed-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
Tested-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>

Tested that MT8192 no longer hangs when dumping clk_summary.

Thanks,
Nícolas