Re: [PATCH v7 3/3] arm64: dts: sc7180: Add required-opps for i2c
flat view
From: Ulf Hansson <hidden>
Date: 2021-08-12 11:46:30
Also in:
linux-arm-msm, linux-pm, lkml
On Thu, 12 Aug 2021 at 13:27, Rajendra Nayak [off-list ref] wrote:
qup-i2c devices on sc7180 are clocked with a fixed clock (19.2 MHz) Though qup-i2c does not support DVFS, it still needs to vote for a performance state on 'CX' to satisfy the 19.2 Mhz clock frequency requirement. Use 'required-opps' to pass this information from device tree, and also add the power-domains property to specify the CX power-domain. Signed-off-by: Rajendra Nayak <redacted> Reviewed-by: Stephen Boyd <redacted>
Reviewed-by: Ulf Hansson <redacted> Kind regards Uffe
quoted hunk ↗ jump to hunk
--- arch/arm64/boot/dts/qcom/sc7180.dtsi | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi index 4721c15..c8921e2 100644 --- a/arch/arm64/boot/dts/qcom/sc7180.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi@@ -790,8 +790,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>, <&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi0: spi@880000 {@@ -842,8 +844,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>, <&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi1: spi@884000 {@@ -894,8 +898,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>, <&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; uart2: serial@888000 {@@ -928,8 +934,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>, <&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi3: spi@88c000 {@@ -980,8 +988,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>, <&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; uart4: serial@890000 {@@ -1014,8 +1024,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_0 0>, <&aggre1_noc MASTER_QUP_0 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi5: spi@894000 {@@ -1079,8 +1091,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>, <&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi6: spi@a80000 {@@ -1131,8 +1145,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>, <&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; uart7: serial@a84000 {@@ -1165,8 +1181,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>, <&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi8: spi@a88000 {@@ -1217,8 +1235,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>, <&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; uart9: serial@a8c000 {@@ -1251,8 +1271,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>, <&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi10: spi@a90000 {@@ -1303,8 +1325,10 @@ <&gem_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_QUP_1 0>, <&aggre2_noc MASTER_QUP_1 0 &mc_virt SLAVE_EBI1 0>; interconnect-names = "qup-core", "qup-config", "qup-memory"; + power-domains = <&rpmhpd SC7180_CX>; + required-opps = <&rpmhpd_opp_low_svs>; status = "disabled"; }; spi11: spi@a94000 { --QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation