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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, 2023-04-21 at 18:43 +0200, Krzysztof Kozlowski wrote: > On 21/04/2023 12:09, Trevor Wu wrote: > > Assign top_a1sys_hp clock to 26M, and add apll1_d4 to clocks for > > switching > > the parent of top_a1sys_hp dynamically > > On the other hand, "mediatek,infracfg" is included for bus > > protection. > > > > Signed-off-by: Trevor Wu > > --- > > .../bindings/sound/mediatek,mt8188-afe.yaml | 16 > > ++++++++++++++-- > > 1 file changed, 14 insertions(+), 2 deletions(-) > > > > diff --git > > a/Documentation/devicetree/bindings/sound/mediatek,mt8188-afe.yaml > > b/Documentation/devicetree/bindings/sound/mediatek,mt8188-afe.yaml > > index 82ccb32f08f2..812e0702ca36 100644 > > --- a/Documentation/devicetree/bindings/sound/mediatek,mt8188- > > afe.yaml > > +++ b/Documentation/devicetree/bindings/sound/mediatek,mt8188- > > afe.yaml > > @@ -29,6 +29,10 @@ properties: > > $ref: /schemas/types.yaml#/definitions/phandle > > description: The phandle of the mediatek topckgen controller > > > > + mediatek,infracfg: > > + $ref: /schemas/types.yaml#/definitions/phandle > > + description: The phandle of the mediatek infracfg controller > > + > > power-domains: > > maxItems: 1 > > > > @@ -52,6 +56,7 @@ properties: > > - description: mux for i2si1_mck > > - description: mux for i2si2_mck > > - description: audio 26m clock > > + - description: audio pll1 divide 4 > > > > clock-names: > > items: > > @@ -73,6 +78,7 @@ properties: > > - const: i2si1_m_sel > > - const: i2si2_m_sel > > - const: adsp_audio_26m > > + - const: apll1_d4 > > > > mediatek,etdm-in1-cowork-source: > > $ref: /schemas/types.yaml#/definitions/uint32 > > @@ -147,6 +153,8 @@ required: > > - power-domains > > - clocks > > - clock-names > > + - assigned-clocks > > + - assigned-clock-parents > > You were explaining it last time, but it did not solve my concerns. > Requiring these properties means that your hardware boots with > incorrect > clock parents, including result of any firmware, and there is no way > it > can correctly work without reparenting. What's more, this means that > your clock hierarchy does not include these clocks for some reason, > e.g. > you need to reparent parents of some parent of your clock input, > otherwise device cannot work. Cannot work never ever. > > Is this the case? Thanks for your detailed explanation. I just tried to initialize the clock to another clock parent for power saving, so this is not the case. In other words, it's not a "must be" property. I will remove them in V3. Thanks, Trevor > > Have in mind that bindings are used also by other OS and projects, > like > bootloaders, firmware etc. > > Best regards, > Krzysztof > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel