Thread (8 messages) 8 messages, 4 authors, 2021-12-10

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

From: Stephen Boyd <sboyd@kernel.org>
Date: 2021-12-01 20:57:40
Also in: lkml

Quoting Michael Turquette (2021-11-23 09:43:55)
On Mon, Nov 22, 2021 at 10:03 AM Sam Protsenko
[off-list ref] wrote:
quoted
On Tue, 19 Oct 2021 at 16:32, Sam Protsenko [off-list ref] wrote:
quoted
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.
Looks good to me.

Acked-by: Michael Turquette <mturquette@baylibre.com>

Stephen, can you take it into your tree?
Sure thing.
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