Hi Morimoto-san,
On Wed, May 24, 2017 at 4:16 AM, Kuninori Morimoto
<kuninori.morimoto.gx@xxxxxxxxxxx> wrote:
> From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
>
> Current rcar_sound only has 11289600 (= for 44.1kHz) clock-frequency,
> but it needs 12288000 for 48kHz too.
> Otherwise, 48kHz based sound can't handle correctly.
>
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/renesas/salvator-x.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/renesas/salvator-x.dtsi b/arch/arm64/boot/dts/renesas/salvator-x.dtsi
> index 1f6b9fb..37f70bd 100644
> --- a/arch/arm64/boot/dts/renesas/salvator-x.dtsi
> +++ b/arch/arm64/boot/dts/renesas/salvator-x.dtsi
> @@ -540,7 +540,7 @@
>
> /* audio_clkout0/1/2/3 */
> #clock-cells = <1>;
> - clock-frequency = <11289600>;
> + clock-frequency = <11289600 12288000>;
Your change has the following impact on /sys/kernel/debug/clk/clk_summary:
@@ -12,6 +12,9 @@
x21-clock 0 0 33000000
0 0
x12 1 1 24576000
0 0
clk_multiplier 1 1 24576000
0 0
+ audio_clkout3 0 0 11289600
0 0
+ audio_clkout2 0 0 11289600
0 0
+ audio_clkout1 0 0 11289600
0 0
audio_clkout 0 0 11289600
0 0
pcie_bus 2 2 100000000
0 0
scif 1 1 14745600
0 0
@@ -19,9 +22,6 @@
audio_clk_c 1 1 0
0 0
audio_clk_b 0 0 0
0 0
audio_clk_a 1 1 22579200
0 0
- audio_clkout3 0 0 11289600
0 0
- audio_clkout2 0 0 11289600
0 0
- audio_clkout1 0 0 11289600
0 0
extalr 1 1 32768
0 0
r 1 1 32768
0 0
rwdt 1 1 32768
0 0
However, no 12288000 to be seen.
Does this depend on a recent driver change?
My tree is based on last renesas-drivers release.
Thanks!
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
