[PATCH V3 02/10] dt-bindings: soc: Add opp table on scpsys bindings

Henry Chen
2019-08-28T12:28:40Z

Add opp table on scpsys dt-bindings for Mediatek SoC.

Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
---
.../devicetree/bindings/soc/mediatek/scpsys.txt | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)

diff --git a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
index 00eab7e..134430a 100644
--- a/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
+++ b/Documentation/devicetree/bindings/soc/mediatek/scpsys.txt
@@ -64,6 +64,10 @@ Optional properties:
- mfg_2d-supply: Power supply for the mfg_2d power domain
- mfg-supply: Power supply for the mfg power domain

+- operating-points-v2: Phandle to the OPP table for the Power domain.
+ Refer to Documentation/devicetree/bindings/power/power_domain.txt
+ and Documentation/devicetree/bindings/opp/opp.txt for more details
+
Example:

scpsys: scpsys@10006000 {
@@ -76,6 +80,27 @@ Example:
<&topckgen CLK_TOP_VENC_SEL>,
<&topckgen CLK_TOP_VENC_LT_SEL>;
clock-names = "mfg", "mm", "venc", "venc_lt";
+ operating-points-v2 = <&dvfsrc_opp_table>;
+
+ dvfsrc_opp_table: opp-table {
+ compatible = "operating-points-v2-level";
+
+ dvfsrc_vol_min: opp1 {
+ opp,level = <MT8183_DVFSRC_LEVEL_1>;
+ };
+
+ dvfsrc_freq_medium: opp2 {
+ opp,level = <MT8183_DVFSRC_LEVEL_2>;
+ };
+
+ dvfsrc_freq_max: opp3 {
+ opp,level = <MT8183_DVFSRC_LEVEL_3>;
+ };
+
+ dvfsrc_vol_max: opp4 {
+ opp,level = <MT8183_DVFSRC_LEVEL_4>;
+ };
+ };
};

Example consumer:
@@ -83,4 +108,21 @@ Example consumer:
afe: mt8173-afe-pcm@11220000 {
compatible = "mediatek,mt8173-afe-pcm";
power-domains = <&scpsys MT8173_POWER_DOMAIN_AUDIO>;
+ operating-points-v2 = <&aud_opp_table>;
+ };
+
+ aud_opp_table: aud-opp-table {
+ compatible = "operating-points-v2";
+ opp1 {
+ opp-hz = /bits/ 64 <793000000>;
+ required-opps = <&dvfsrc_vol_min>;
+ };
+ opp2 {
+ opp-hz = /bits/ 64 <910000000>;
+ required-opps = <&dvfsrc_vol_max>;
+ };
+ opp3 {
+ opp-hz = /bits/ 64 <1014000000>;
+ required-opps = <&dvfsrc_vol_max>;
+ };
};
--
1.9.1