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From: Viresh Kumar <viresh.kumar@linaro.org>
To: Viresh Kumar <vireshk@kernel.org>, Nishanth Menon <nm@ti.com>,
	Stephen Boyd <sboyd@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	linux-pm@vger.kernel.org,
	Vincent Guittot <vincent.guittot@linaro.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rob Herring <robh@kernel.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH V2 05/13] dt-bindings: opp: accept array of frequencies
Date: Tue,  5 Jul 2022 12:30:08 +0530	[thread overview]
Message-ID: <1110ceeb20c2e50573b0e208f52238d280f10845.1657003420.git.viresh.kumar@linaro.org> (raw)
In-Reply-To: <cover.1657003420.git.viresh.kumar@linaro.org>

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Devices might need to control several clocks when scaling the frequency
and voltage.  Allow passing array of clock frequencies, similarly to the
voltages.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 Documentation/devicetree/bindings/opp/opp-v2-base.yaml | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
index 76c8acd981b3..66d0ec763f0b 100644
--- a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
+++ b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
@@ -50,6 +50,16 @@ select: false
           property to uniquely identify the OPP nodes exists. Devices like power
           domains must have another (implementation dependent) property.
 
+          Entries for multiple clocks shall be provided in the same field, as
+          array of frequencies.  The OPP binding doesn't provide any provisions
+          to relate the values to their clocks or the order in which the clocks
+          need to be configured and that is left for the implementation
+          specific binding.
+        minItems: 1
+        maxItems: 16
+        items:
+          maxItems: 1
+
       opp-microvolt:
         description: |
           Voltage for the OPP
-- 
2.31.1.272.g89b43f80a514


  parent reply	other threads:[~2022-07-05  7:01 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-05  7:00 [PATCH V2 00/13] OPP: Add support for multiple clocks* Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 01/13] OPP: Use consistent names for OPP table instances Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 02/13] OPP: Remove rate_not_available parameter to _opp_add() Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 03/13] OPP: Reuse _opp_compare_key() in _opp_add_static_v2() Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 04/13] OPP: Make dev_pm_opp_set_opp() independent of frequency Viresh Kumar
2022-07-05  7:00 ` Viresh Kumar [this message]
2022-07-05  7:00 ` [PATCH V2 06/13] OPP: Allow multiple clocks for a device Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 07/13] OPP: Compare bandwidths for all paths in _opp_compare_key() Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 08/13] OPP: Add key specific assert() method to key finding helpers Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 09/13] OPP: Assert clk_count == 1 for single clk helpers Viresh Kumar
2022-07-05 17:21   ` Krzysztof Kozlowski
2022-07-06  6:39     ` Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 10/13] OPP: Provide a simple implementation to configure multiple clocks Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 11/13] OPP: Allow config_clks helper for single clk case Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 12/13] PM / devfreq: tegra30: Register config_clks helper Viresh Kumar
2022-07-05  7:00 ` [PATCH V2 13/13] OPP: Remove dev{m}_pm_opp_of_add_table_noclk() Viresh Kumar
2022-07-07 19:43 ` [PATCH V2 00/13] OPP: Add support for multiple clocks* Dmitry Osipenko
2022-07-08  7:19   ` Viresh Kumar
2022-07-08  7:26     ` Dmitry Osipenko
2022-07-08  7:30       ` Dmitry Osipenko
2022-07-08  8:13         ` Viresh Kumar
2022-07-08  8:12       ` Viresh Kumar
2022-07-08 16:15         ` Dmitry Osipenko
2022-07-11 16:40 ` Johan Hovold
2022-07-12  7:52   ` Viresh Kumar
2022-07-12 12:25     ` Manivannan Sadhasivam
2022-07-12 14:29     ` Johan Hovold
2022-07-12 15:10       ` Viresh Kumar
2022-07-12 15:55         ` Johan Hovold
2022-07-13  6:55           ` Viresh Kumar

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