Re: [PATCH v6] clk: Add write operation for clk_parent debugfs node

On Tue, 19 Oct 2021 at 16:32, Sam Protsenko [off-list ref] wrote:

On Wed, 13 Oct 2021 at 21:04, Fabio Estevam [off-list ref] wrote:

quoted

Hi Sam,

On Wed, Oct 13, 2021 at 2:20 PM Sam Protsenko
[off-list ref] wrote:

quoted

Useful for testing mux clocks. One can write the index of the parent to
be set into clk_parent node, starting from 0. Example

    # cd /sys/kernel/debug/clk/mout_peri_bus
    # cat clk_possible_parents
      dout_shared0_div4 dout_shared1_div4
    # cat clk_parent
      dout_shared0_div4
    # echo 1 > clk_parent
    # cat clk_parent
      dout_shared1_div4

CLOCK_ALLOW_WRITE_DEBUGFS has to be defined in drivers/clk/clk.c in
order to use this feature.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Andy Shevchenko <redacted>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

This is useful, thanks:

Reviewed-by: Fabio Estevam <festevam@gmail.com>

Hi Michael, Stephen,

If there are no outstanding comments, can you please take this one?

Bump.

Thanks!