Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 501a7a1c authored by Rama Aparna Mallavarapu's avatar Rama Aparna Mallavarapu
Browse files

dt-bindings: devfreq: Add DT bindings to support OPP BW values 



This patch adds DT bindings for the list of supported bandwidth
values added in device tree.

Change-Id: I0e8fd3ba3aeb6c98bc027a621455288606683fd3
Signed-off-by: default avatarRama Aparna Mallavarapu <aparnam@codeaurora.org>
parent 78fdd25c

Documentation/devicetree/bindings/devfreq/devbw.txt

+33 −14
Original line number Diff line number Diff line
@@ -9,11 +9,11 @@ Required properties: 
- compatible:		Must be "qcom,devbw"

- qcom,src-dst-ports:	A list of tuples where each tuple consists of a bus

			master port number and a bus slave port number.

- qcom,bw-tbl:		A list of meaningful instantaneous bandwidth values

			(in MB/s) that can be requested from the device

			master port to the slave port. The list of values

			depend on the supported bus/slave frequencies and the

			bus width.

- operating-points-v2:	A phandle to the OPP v2 table that holds meaningful

			instantaneous bandwidth values (in MB/s) that can be

			requested from the device master port to the slave port.

			The list of values depend on the supported bus/slave

			frequencies and the bus width.



Optional properties:

- qcom,active-only:	Indicates that the bandwidth votes need to be
@@ -23,17 +23,36 @@ Optional properties: 


Example:



	bw_opp_table: bw-opp-table {

		compatible = "operating-points-v2";

		opp-75  {

			opp-hz = /bits/ 64 <  572 >; /*  75 MHz */

		};

		opp-150 {

			opp-hz = /bits/ 64 < 1144 >; /* 150 MHz */

		};

		opp-200 {

			opp-hz = /bits/ 64 < 1525 >; /* 200 MHz */

		};

		opp-307 {

			opp-hz = /bits/ 64 < 2342 >; /* 307 MHz */

		};

		opp-460 {

			opp-hz = /bits/ 64 < 3509 >; /* 460 MHz */

		};

		opp-614 {

			opp-hz = /bits/ 64 < 4684 >; /* 614 MHz */

		};

		opp-800 {

			opp-hz = /bits/ 64 < 6103 >; /* 800 MHz */

		};

		opp-931 {

			opp-hz = /bits/ 64 < 7102 >; /* 931 MHz */

		};

	};

	qcom,cpubw {

		compatible = "qcom,devbw";

		qcom,src-dst-ports = <1 512>, <2 512>;

		qcom,active-only;

		qcom,bw-tbl =

			<  572 /*  75 MHz */ >,

			< 1144 /* 150 MHz */ >,

			< 1525 /* 200 MHz */ >,

			< 2342 /* 307 MHz */ >,

			< 3509 /* 460 MHz */ >,

			< 4684 /* 614 MHz */ >,

			< 6103 /* 800 MHz */ >,

			< 7102 /* 931 MHz */ >;

		operating-points-v2 = <&bw_opp_table>;

	};