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Qualcomm ARM Based Driver Updates for v5.1
* Add Qualcomm RPMh power domain driver and related changes * Fix issues with sleep/wake sets and batch API in RPMh * Update MAINTAINERS Qualcomm entry * Fixup RMTFS-mem sysfs and uevents * Fix error handling in GSBI * Add SMD-RPM compatible entry for SDM660 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJcV75tAAoJEFKiBbHx2RXV3ZcQAJ4xdmg0eVXrzu4ltl/ZbF7m walu7pGtLF7lIXJoJZWgpzS6SAmDQAMG++pp6zP6+3t6fB8heSNVBImgo2l6fHzr KEHoH1PFhrdZwyOhswE/5n5CZBOb4xrL+m94NufDh7Yv8h5ukC8DH3xE9PFsoh4A GnDc6qkHByNJKuNxlKKASq6VRMqzpnys2Ibzs6G5/6UDzvnEAYj5VoHLLCjsh6r+ +bKusJPUZKujyLU85rbtpEjO1HxHiOq7TJI5FZ8dta+iXSyIc/2nM9InTgr68ATq VN7mOtclMEiVN8uQaXN0D/FWK3JYBIY5Mvd8zYzzkE+NDj0tnZDZoLjK2VnTX9o+ nORX7vQc/JmBayLcMaBZ/ZB+i2lsg37ziFCZaZiP9GYR1DAvm3yLfaxbWmkVKbGq lhf/dR7qyXKjIP8rPO2qp4sCKww2RbkDa2p+xnQ2/psjvpgkmy4lcfIhw5HWonQR eJ1UgoLsdQf/Xi6cKKmuzbdQsmZGr95sTHh06Gw1yeMRGuoXTHSNYx5epLdwJmD5 OWcIwh+sfZdmKUhMB/895EFpRuK/+L07N+n48DYaaU4CHXcowp80Ng5V6FnEnEWm tI9oKt3N2kAYQAPlgpb3azTtAmB+yAcaYGrNQXzd7nYLnLma40qCR0Nx8bMXCjeq sgRdF06ATCQDbBruztw3 =CcrU -----END PGP SIGNATURE----- Merge tag 'qcom-drivers-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into arm/drivers Qualcomm ARM Based Driver Updates for v5.1 * Add Qualcomm RPMh power domain driver and related changes * Fix issues with sleep/wake sets and batch API in RPMh * Update MAINTAINERS Qualcomm entry * Fixup RMTFS-mem sysfs and uevents * Fix error handling in GSBI * Add SMD-RPM compatible entry for SDM660 * tag 'qcom-drivers-for-5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux: soc: qcom: smd-rpm: Add sdm660 compatible soc: qcom: gsbi: Fix error handling in gsbi_probe() soc: qcom: rpmh: Avoid accessing freed memory from batch API drivers: qcom: rpmh: avoid sending sleep/wake sets immediately soc: qcom: rmtfs-mem: Make sysfs attributes world-readable soc: qcom: rmtfs-mem: Add class to enable uevents soc: qcom: update config dependencies for QCOM_RPMPD soc: qcom: rpmpd: Drop family A RPM dependency MAINTAINERS: update list of qcom drivers soc: qcom: rpmhpd: Mark mx as a parent for cx soc: qcom: rpmhpd: Add RPMh power domain driver soc: qcom: rpmpd: Add support for get/set performance state soc: qcom: rpmpd: Add a Power domain driver to model corners dt-bindings: power: Add qcom rpm power domain driver bindings OPP: Add support for parsing the 'opp-level' property dt-bindings: opp: Introduce opp-level bindings Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
commit
405bcfff17
@ -129,6 +129,9 @@ Optional properties:
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- opp-microamp-<name>: Named opp-microamp property. Similar to
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opp-microvolt-<name> property, but for microamp instead.
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- opp-level: A value representing the performance level of the device,
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expressed as a 32-bit integer.
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- clock-latency-ns: Specifies the maximum possible transition latency (in
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nanoseconds) for switching to this OPP from any other OPP.
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145
Documentation/devicetree/bindings/power/qcom,rpmpd.txt
Normal file
145
Documentation/devicetree/bindings/power/qcom,rpmpd.txt
Normal file
@ -0,0 +1,145 @@
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Qualcomm RPM/RPMh Power domains
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For RPM/RPMh Power domains, we communicate a performance state to RPM/RPMh
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which then translates it into a corresponding voltage on a rail
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Required Properties:
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- compatible: Should be one of the following
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* qcom,msm8996-rpmpd: RPM Power domain for the msm8996 family of SoC
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* qcom,sdm845-rpmhpd: RPMh Power domain for the sdm845 family of SoC
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- #power-domain-cells: number of cells in Power domain specifier
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must be 1.
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- operating-points-v2: Phandle to the OPP table for the Power domain.
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Refer to Documentation/devicetree/bindings/power/power_domain.txt
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and Documentation/devicetree/bindings/opp/opp.txt for more details
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Refer to <dt-bindings/power/qcom-rpmpd.h> for the level values for
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various OPPs for different platforms as well as Power domain indexes
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Example: rpmh power domain controller and OPP table
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#include <dt-bindings/power/qcom-rpmhpd.h>
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opp-level values specified in the OPP tables for RPMh power domains
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should use the RPMH_REGULATOR_LEVEL_* constants from
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<dt-bindings/power/qcom-rpmhpd.h>
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rpmhpd: power-controller {
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compatible = "qcom,sdm845-rpmhpd";
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#power-domain-cells = <1>;
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operating-points-v2 = <&rpmhpd_opp_table>;
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rpmhpd_opp_table: opp-table {
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compatible = "operating-points-v2";
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rpmhpd_opp_ret: opp1 {
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opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
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};
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rpmhpd_opp_min_svs: opp2 {
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opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
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};
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rpmhpd_opp_low_svs: opp3 {
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opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
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};
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rpmhpd_opp_svs: opp4 {
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opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
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};
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rpmhpd_opp_svs_l1: opp5 {
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opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
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};
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rpmhpd_opp_nom: opp6 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
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};
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rpmhpd_opp_nom_l1: opp7 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
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};
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rpmhpd_opp_nom_l2: opp8 {
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opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
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};
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rpmhpd_opp_turbo: opp9 {
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opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
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};
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rpmhpd_opp_turbo_l1: opp10 {
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opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
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};
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};
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};
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Example: rpm power domain controller and OPP table
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rpmpd: power-controller {
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compatible = "qcom,msm8996-rpmpd";
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#power-domain-cells = <1>;
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operating-points-v2 = <&rpmpd_opp_table>;
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rpmpd_opp_table: opp-table {
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compatible = "operating-points-v2";
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rpmpd_opp_low: opp1 {
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opp-level = <1>;
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};
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rpmpd_opp_ret: opp2 {
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opp-level = <2>;
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};
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rpmpd_opp_svs: opp3 {
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opp-level = <3>;
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};
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rpmpd_opp_normal: opp4 {
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opp-level = <4>;
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};
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rpmpd_opp_high: opp5 {
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opp-level = <5>;
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};
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rpmpd_opp_turbo: opp6 {
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opp-level = <6>;
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};
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};
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};
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Example: Client/Consumer device using OPP table
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leaky-device0@12350000 {
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compatible = "foo,i-leak-current";
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reg = <0x12350000 0x1000>;
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power-domains = <&rpmhpd SDM845_MX>;
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operating-points-v2 = <&leaky_opp_table>;
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};
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leaky_opp_table: opp-table {
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compatible = "operating-points-v2";
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opp1 {
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opp-hz = /bits/ 64 <144000>;
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required-opps = <&rpmhpd_opp_low>;
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};
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opp2 {
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opp-hz = /bits/ 64 <400000>;
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required-opps = <&rpmhpd_opp_ret>;
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};
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opp3 {
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opp-hz = /bits/ 64 <20000000>;
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required-opps = <&rpmpd_opp_svs>;
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};
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opp4 {
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opp-hz = /bits/ 64 <25000000>;
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required-opps = <&rpmpd_opp_normal>;
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};
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};
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@ -23,6 +23,7 @@ resources.
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"qcom,rpm-msm8916"
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"qcom,rpm-msm8974"
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"qcom,rpm-msm8998"
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"qcom,rpm-sdm660"
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"qcom,rpm-qcs404"
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- qcom,smd-channels:
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34
MAINTAINERS
34
MAINTAINERS
@ -1948,19 +1948,37 @@ M: David Brown <david.brown@linaro.org>
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L: linux-arm-msm@vger.kernel.org
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S: Maintained
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F: Documentation/devicetree/bindings/soc/qcom/
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F: Documentation/devicetree/bindings/*/qcom*
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F: arch/arm/boot/dts/qcom-*.dts
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F: arch/arm/boot/dts/qcom-*.dtsi
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F: arch/arm/mach-qcom/
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F: arch/arm64/boot/dts/qcom/*
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F: drivers/i2c/busses/i2c-qup.c
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F: drivers/clk/qcom/
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F: drivers/dma/qcom/
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F: drivers/soc/qcom/
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F: drivers/spi/spi-qup.c
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F: drivers/tty/serial/msm_serial.c
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F: arch/arm64/boot/dts/qcom/
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F: drivers/*/qcom/
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F: drivers/*/qcom*
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F: drivers/*/*/qcom/
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F: drivers/*/*/qcom*
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F: drivers/*/pm8???-*
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F: drivers/bluetooth/btqcomsmd.c
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F: drivers/clocksource/timer-qcom.c
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F: drivers/extcon/extcon-qcom*
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F: drivers/iommu/msm*
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F: drivers/i2c/busses/i2c-qup.c
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F: drivers/i2c/busses/i2c-qcom-geni.c
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F: drivers/mfd/ssbi.c
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F: drivers/firmware/qcom_scm*
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F: drivers/mmc/host/mmci_qcom*
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F: drivers/mmc/host/sdhci_msm.c
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F: drivers/pci/controller/dwc/pcie-qcom.c
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F: drivers/phy/qualcomm/
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F: drivers/power/*/msm*
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F: drivers/reset/reset-qcom-*
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F: drivers/scsi/ufs/ufs-qcom.*
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F: drivers/spi/spi-qup.c
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F: drivers/spi/spi-geni-qcom.c
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F: drivers/spi/spi-qcom-qspi.c
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F: drivers/tty/serial/msm_serial.c
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F: drivers/usb/dwc3/dwc3-qcom.c
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F: include/dt-bindings/*/qcom*
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F: include/linux/*/qcom*
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T: git git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux.git
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ARM/RADISYS ENP2611 MACHINE SUPPORT
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@ -130,6 +130,24 @@ unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
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}
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EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq);
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/**
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* dev_pm_opp_get_level() - Gets the level corresponding to an available opp
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* @opp: opp for which level value has to be returned for
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*
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* Return: level read from device tree corresponding to the opp, else
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* return 0.
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*/
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unsigned int dev_pm_opp_get_level(struct dev_pm_opp *opp)
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{
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if (IS_ERR_OR_NULL(opp) || !opp->available) {
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pr_err("%s: Invalid parameters\n", __func__);
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return 0;
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}
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return opp->level;
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}
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EXPORT_SYMBOL_GPL(dev_pm_opp_get_level);
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/**
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* dev_pm_opp_is_turbo() - Returns if opp is turbo OPP or not
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* @opp: opp for which turbo mode is being verified
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@ -594,6 +594,8 @@ static struct dev_pm_opp *_opp_add_static_v2(struct opp_table *opp_table,
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new_opp->rate = (unsigned long)rate;
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}
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of_property_read_u32(np, "opp-level", &new_opp->level);
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/* Check if the OPP supports hardware's hierarchy of versions or not */
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if (!_opp_is_supported(dev, opp_table, np)) {
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dev_dbg(dev, "OPP not supported by hardware: %llu\n", rate);
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@ -60,6 +60,7 @@ extern struct list_head opp_tables;
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* @suspend: true if suspend OPP
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* @pstate: Device's power domain's performance state.
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* @rate: Frequency in hertz
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* @level: Performance level
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* @supplies: Power supplies voltage/current values
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* @clock_latency_ns: Latency (in nanoseconds) of switching to this OPP's
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* frequency from any other OPP's frequency.
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@ -80,6 +81,7 @@ struct dev_pm_opp {
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bool suspend;
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unsigned int pstate;
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unsigned long rate;
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unsigned int level;
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struct dev_pm_opp_supply *supplies;
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@ -98,6 +98,24 @@ config QCOM_RPMH
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of hardware components aggregate requests for these resources and
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help apply the aggregated state on the resource.
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config QCOM_RPMHPD
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bool "Qualcomm RPMh Power domain driver"
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depends on QCOM_RPMH && QCOM_COMMAND_DB
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help
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QCOM RPMh Power domain driver to support power-domains with
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performance states. The driver communicates a performance state
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value to RPMh which then translates it into corresponding voltage
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for the voltage rail.
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config QCOM_RPMPD
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bool "Qualcomm RPM Power domain driver"
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depends on QCOM_SMD_RPM=y
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help
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QCOM RPM Power domain driver to support power-domains with
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performance states. The driver communicates a performance state
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value to RPM which then translates it into corresponding voltage
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for the voltage rail.
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config QCOM_SMEM
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tristate "Qualcomm Shared Memory Manager (SMEM)"
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depends on ARCH_QCOM || COMPILE_TEST
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@ -21,3 +21,5 @@ obj-$(CONFIG_QCOM_WCNSS_CTRL) += wcnss_ctrl.o
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obj-$(CONFIG_QCOM_APR) += apr.o
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obj-$(CONFIG_QCOM_LLCC) += llcc-slice.o
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obj-$(CONFIG_QCOM_SDM845_LLCC) += llcc-sdm845.o
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obj-$(CONFIG_QCOM_RPMHPD) += rpmhpd.o
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obj-$(CONFIG_QCOM_RPMPD) += rpmpd.o
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@ -138,7 +138,7 @@ static int gsbi_probe(struct platform_device *pdev)
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struct resource *res;
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void __iomem *base;
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struct gsbi_info *gsbi;
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int i;
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int i, ret;
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u32 mask, gsbi_num;
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const struct crci_config *config = NULL;
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@ -221,7 +221,10 @@ static int gsbi_probe(struct platform_device *pdev)
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platform_set_drvdata(pdev, gsbi);
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return of_platform_populate(node, NULL, NULL, &pdev->dev);
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ret = of_platform_populate(node, NULL, NULL, &pdev->dev);
|
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if (ret)
|
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clk_disable_unprepare(gsbi->hclk);
|
||||
return ret;
|
||||
}
|
||||
|
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static int gsbi_remove(struct platform_device *pdev)
|
||||
|
||||
@ -45,9 +45,9 @@ static ssize_t qcom_rmtfs_mem_show(struct device *dev,
|
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struct device_attribute *attr,
|
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char *buf);
|
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|
||||
static DEVICE_ATTR(phys_addr, 0400, qcom_rmtfs_mem_show, NULL);
|
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static DEVICE_ATTR(size, 0400, qcom_rmtfs_mem_show, NULL);
|
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static DEVICE_ATTR(client_id, 0400, qcom_rmtfs_mem_show, NULL);
|
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static DEVICE_ATTR(phys_addr, 0444, qcom_rmtfs_mem_show, NULL);
|
||||
static DEVICE_ATTR(size, 0444, qcom_rmtfs_mem_show, NULL);
|
||||
static DEVICE_ATTR(client_id, 0444, qcom_rmtfs_mem_show, NULL);
|
||||
|
||||
static ssize_t qcom_rmtfs_mem_show(struct device *dev,
|
||||
struct device_attribute *attr,
|
||||
@ -132,6 +132,11 @@ static int qcom_rmtfs_mem_release(struct inode *inode, struct file *filp)
|
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return 0;
|
||||
}
|
||||
|
||||
static struct class rmtfs_class = {
|
||||
.owner = THIS_MODULE,
|
||||
.name = "rmtfs",
|
||||
};
|
||||
|
||||
static const struct file_operations qcom_rmtfs_mem_fops = {
|
||||
.owner = THIS_MODULE,
|
||||
.open = qcom_rmtfs_mem_open,
|
||||
@ -199,6 +204,7 @@ static int qcom_rmtfs_mem_probe(struct platform_device *pdev)
|
||||
|
||||
dev_set_name(&rmtfs_mem->dev, "qcom_rmtfs_mem%d", client_id);
|
||||
rmtfs_mem->dev.id = client_id;
|
||||
rmtfs_mem->dev.class = &rmtfs_class;
|
||||
rmtfs_mem->dev.devt = MKDEV(MAJOR(qcom_rmtfs_mem_major), client_id);
|
||||
|
||||
ret = cdev_device_add(&rmtfs_mem->cdev, &rmtfs_mem->dev);
|
||||
@ -277,32 +283,42 @@ static struct platform_driver qcom_rmtfs_mem_driver = {
|
||||
},
|
||||
};
|
||||
|
||||
static int qcom_rmtfs_mem_init(void)
|
||||
static int __init qcom_rmtfs_mem_init(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
ret = class_register(&rmtfs_class);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = alloc_chrdev_region(&qcom_rmtfs_mem_major, 0,
|
||||
QCOM_RMTFS_MEM_DEV_MAX, "qcom_rmtfs_mem");
|
||||
if (ret < 0) {
|
||||
pr_err("qcom_rmtfs_mem: failed to allocate char dev region\n");
|
||||
return ret;
|
||||
goto unregister_class;
|
||||
}
|
||||
|
||||
ret = platform_driver_register(&qcom_rmtfs_mem_driver);
|
||||
if (ret < 0) {
|
||||
pr_err("qcom_rmtfs_mem: failed to register rmtfs_mem driver\n");
|
||||
unregister_chrdev_region(qcom_rmtfs_mem_major,
|
||||
QCOM_RMTFS_MEM_DEV_MAX);
|
||||
goto unregister_chrdev;
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
unregister_chrdev:
|
||||
unregister_chrdev_region(qcom_rmtfs_mem_major, QCOM_RMTFS_MEM_DEV_MAX);
|
||||
unregister_class:
|
||||
class_unregister(&rmtfs_class);
|
||||
return ret;
|
||||
}
|
||||
module_init(qcom_rmtfs_mem_init);
|
||||
|
||||
static void qcom_rmtfs_mem_exit(void)
|
||||
static void __exit qcom_rmtfs_mem_exit(void)
|
||||
{
|
||||
platform_driver_unregister(&qcom_rmtfs_mem_driver);
|
||||
unregister_chrdev_region(qcom_rmtfs_mem_major, QCOM_RMTFS_MEM_DEV_MAX);
|
||||
class_unregister(&rmtfs_class);
|
||||
}
|
||||
module_exit(qcom_rmtfs_mem_exit);
|
||||
|
||||
|
||||
@ -80,6 +80,7 @@ void rpmh_tx_done(const struct tcs_request *msg, int r)
|
||||
struct rpmh_request *rpm_msg = container_of(msg, struct rpmh_request,
|
||||
msg);
|
||||
struct completion *compl = rpm_msg->completion;
|
||||
bool free = rpm_msg->needs_free;
|
||||
|
||||
rpm_msg->err = r;
|
||||
|
||||
@ -94,7 +95,7 @@ void rpmh_tx_done(const struct tcs_request *msg, int r)
|
||||
complete(compl);
|
||||
|
||||
exit:
|
||||
if (rpm_msg->needs_free)
|
||||
if (free)
|
||||
kfree(rpm_msg);
|
||||
}
|
||||
|
||||
@ -192,9 +193,8 @@ static int __rpmh_write(const struct device *dev, enum rpmh_state state,
|
||||
WARN_ON(irqs_disabled());
|
||||
ret = rpmh_rsc_send_data(ctrlr_to_drv(ctrlr), &rpm_msg->msg);
|
||||
} else {
|
||||
ret = rpmh_rsc_write_ctrl_data(ctrlr_to_drv(ctrlr),
|
||||
&rpm_msg->msg);
|
||||
/* Clean up our call by spoofing tx_done */
|
||||
ret = 0;
|
||||
rpmh_tx_done(&rpm_msg->msg, ret);
|
||||
}
|
||||
|
||||
@ -348,11 +348,12 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
|
||||
{
|
||||
struct batch_cache_req *req;
|
||||
struct rpmh_request *rpm_msgs;
|
||||
DECLARE_COMPLETION_ONSTACK(compl);
|
||||
struct completion *compls;
|
||||
struct rpmh_ctrlr *ctrlr = get_rpmh_ctrlr(dev);
|
||||
unsigned long time_left;
|
||||
int count = 0;
|
||||
int ret, i, j;
|
||||
int ret, i;
|
||||
void *ptr;
|
||||
|
||||
if (!cmd || !n)
|
||||
return -EINVAL;
|
||||
@ -362,10 +363,15 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
|
||||
if (!count)
|
||||
return -EINVAL;
|
||||
|
||||
req = kzalloc(sizeof(*req) + count * sizeof(req->rpm_msgs[0]),
|
||||
ptr = kzalloc(sizeof(*req) +
|
||||
count * (sizeof(req->rpm_msgs[0]) + sizeof(*compls)),
|
||||
GFP_ATOMIC);
|
||||
if (!req)
|
||||
if (!ptr)
|
||||
return -ENOMEM;
|
||||
|
||||
req = ptr;
|
||||
compls = ptr + sizeof(*req) + count * sizeof(*rpm_msgs);
|
||||
|
||||
req->count = count;
|
||||
rpm_msgs = req->rpm_msgs;
|
||||
|
||||
@ -380,25 +386,26 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
|
||||
}
|
||||
|
||||
for (i = 0; i < count; i++) {
|
||||
rpm_msgs[i].completion = &compl;
|
||||
struct completion *compl = &compls[i];
|
||||
|
||||
init_completion(compl);
|
||||
rpm_msgs[i].completion = compl;
|
||||
ret = rpmh_rsc_send_data(ctrlr_to_drv(ctrlr), &rpm_msgs[i].msg);
|
||||
if (ret) {
|
||||
pr_err("Error(%d) sending RPMH message addr=%#x\n",
|
||||
ret, rpm_msgs[i].msg.cmds[0].addr);
|
||||
for (j = i; j < count; j++)
|
||||
rpmh_tx_done(&rpm_msgs[j].msg, ret);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
time_left = RPMH_TIMEOUT_MS;
|
||||
for (i = 0; i < count; i++) {
|
||||
time_left = wait_for_completion_timeout(&compl, time_left);
|
||||
while (i--) {
|
||||
time_left = wait_for_completion_timeout(&compls[i], time_left);
|
||||
if (!time_left) {
|
||||
/*
|
||||
* Better hope they never finish because they'll signal
|
||||
* the completion on our stack and that's bad once
|
||||
* we've returned from the function.
|
||||
* the completion that we're going to free once
|
||||
* we've returned from this function.
|
||||
*/
|
||||
WARN_ON(1);
|
||||
ret = -ETIMEDOUT;
|
||||
@ -407,7 +414,7 @@ int rpmh_write_batch(const struct device *dev, enum rpmh_state state,
|
||||
}
|
||||
|
||||
exit:
|
||||
kfree(req);
|
||||
kfree(ptr);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
406
drivers/soc/qcom/rpmhpd.c
Normal file
406
drivers/soc/qcom/rpmhpd.c
Normal file
@ -0,0 +1,406 @@
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
/* Copyright (c) 2018, The Linux Foundation. All rights reserved.*/
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/pm_domain.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/pm_opp.h>
|
||||
#include <soc/qcom/cmd-db.h>
|
||||
#include <soc/qcom/rpmh.h>
|
||||
#include <dt-bindings/power/qcom-rpmpd.h>
|
||||
|
||||
#define domain_to_rpmhpd(domain) container_of(domain, struct rpmhpd, pd)
|
||||
|
||||
#define RPMH_ARC_MAX_LEVELS 16
|
||||
|
||||
/**
|
||||
* struct rpmhpd - top level RPMh power domain resource data structure
|
||||
* @dev: rpmh power domain controller device
|
||||
* @pd: generic_pm_domain corrresponding to the power domain
|
||||
* @peer: A peer power domain in case Active only Voting is
|
||||
* supported
|
||||
* @active_only: True if it represents an Active only peer
|
||||
* @level: An array of level (vlvl) to corner (hlvl) mappings
|
||||
* derived from cmd-db
|
||||
* @level_count: Number of levels supported by the power domain. max
|
||||
* being 16 (0 - 15)
|
||||
* @enabled: true if the power domain is enabled
|
||||
* @res_name: Resource name used for cmd-db lookup
|
||||
* @addr: Resource address as looped up using resource name from
|
||||
* cmd-db
|
||||
*/
|
||||
struct rpmhpd {
|
||||
struct device *dev;
|
||||
struct generic_pm_domain pd;
|
||||
struct generic_pm_domain *parent;
|
||||
struct rpmhpd *peer;
|
||||
const bool active_only;
|
||||
unsigned int corner;
|
||||
unsigned int active_corner;
|
||||
u32 level[RPMH_ARC_MAX_LEVELS];
|
||||
size_t level_count;
|
||||
bool enabled;
|
||||
const char *res_name;
|
||||
u32 addr;
|
||||
};
|
||||
|
||||
struct rpmhpd_desc {
|
||||
struct rpmhpd **rpmhpds;
|
||||
size_t num_pds;
|
||||
};
|
||||
|
||||
static DEFINE_MUTEX(rpmhpd_lock);
|
||||
|
||||
/* SDM845 RPMH powerdomains */
|
||||
|
||||
static struct rpmhpd sdm845_ebi = {
|
||||
.pd = { .name = "ebi", },
|
||||
.res_name = "ebi.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_lmx = {
|
||||
.pd = { .name = "lmx", },
|
||||
.res_name = "lmx.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_lcx = {
|
||||
.pd = { .name = "lcx", },
|
||||
.res_name = "lcx.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_gfx = {
|
||||
.pd = { .name = "gfx", },
|
||||
.res_name = "gfx.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_mss = {
|
||||
.pd = { .name = "mss", },
|
||||
.res_name = "mss.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_mx_ao;
|
||||
static struct rpmhpd sdm845_mx = {
|
||||
.pd = { .name = "mx", },
|
||||
.peer = &sdm845_mx_ao,
|
||||
.res_name = "mx.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_mx_ao = {
|
||||
.pd = { .name = "mx_ao", },
|
||||
.peer = &sdm845_mx,
|
||||
.res_name = "mx.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_cx_ao;
|
||||
static struct rpmhpd sdm845_cx = {
|
||||
.pd = { .name = "cx", },
|
||||
.peer = &sdm845_cx_ao,
|
||||
.parent = &sdm845_mx.pd,
|
||||
.res_name = "cx.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd sdm845_cx_ao = {
|
||||
.pd = { .name = "cx_ao", },
|
||||
.peer = &sdm845_cx,
|
||||
.parent = &sdm845_mx_ao.pd,
|
||||
.res_name = "cx.lvl",
|
||||
};
|
||||
|
||||
static struct rpmhpd *sdm845_rpmhpds[] = {
|
||||
[SDM845_EBI] = &sdm845_ebi,
|
||||
[SDM845_MX] = &sdm845_mx,
|
||||
[SDM845_MX_AO] = &sdm845_mx_ao,
|
||||
[SDM845_CX] = &sdm845_cx,
|
||||
[SDM845_CX_AO] = &sdm845_cx_ao,
|
||||
[SDM845_LMX] = &sdm845_lmx,
|
||||
[SDM845_LCX] = &sdm845_lcx,
|
||||
[SDM845_GFX] = &sdm845_gfx,
|
||||
[SDM845_MSS] = &sdm845_mss,
|
||||
};
|
||||
|
||||
static const struct rpmhpd_desc sdm845_desc = {
|
||||
.rpmhpds = sdm845_rpmhpds,
|
||||
.num_pds = ARRAY_SIZE(sdm845_rpmhpds),
|
||||
};
|
||||
|
||||
static const struct of_device_id rpmhpd_match_table[] = {
|
||||
{ .compatible = "qcom,sdm845-rpmhpd", .data = &sdm845_desc },
|
||||
{ }
|
||||
};
|
||||
|
||||
static int rpmhpd_send_corner(struct rpmhpd *pd, int state,
|
||||
unsigned int corner, bool sync)
|
||||
{
|
||||
struct tcs_cmd cmd = {
|
||||
.addr = pd->addr,
|
||||
.data = corner,
|
||||
};
|
||||
|
||||
/*
|
||||
* Wait for an ack only when we are increasing the
|
||||
* perf state of the power domain
|
||||
*/
|
||||
if (sync)
|
||||
return rpmh_write(pd->dev, state, &cmd, 1);
|
||||
else
|
||||
return rpmh_write_async(pd->dev, state, &cmd, 1);
|
||||
}
|
||||
|
||||
static void to_active_sleep(struct rpmhpd *pd, unsigned int corner,
|
||||
unsigned int *active, unsigned int *sleep)
|
||||
{
|
||||
*active = corner;
|
||||
|
||||
if (pd->active_only)
|
||||
*sleep = 0;
|
||||
else
|
||||
*sleep = *active;
|
||||
}
|
||||
|
||||
/*
|
||||
* This function is used to aggregate the votes across the active only
|
||||
* resources and its peers. The aggregated votes are sent to RPMh as
|
||||
* ACTIVE_ONLY votes (which take effect immediately), as WAKE_ONLY votes
|
||||
* (applied by RPMh on system wakeup) and as SLEEP votes (applied by RPMh
|
||||
* on system sleep).
|
||||
* We send ACTIVE_ONLY votes for resources without any peers. For others,
|
||||
* which have an active only peer, all 3 votes are sent.
|
||||
*/
|
||||
static int rpmhpd_aggregate_corner(struct rpmhpd *pd, unsigned int corner)
|
||||
{
|
||||
int ret;
|
||||
struct rpmhpd *peer = pd->peer;
|
||||
unsigned int active_corner, sleep_corner;
|
||||
unsigned int this_active_corner = 0, this_sleep_corner = 0;
|
||||
unsigned int peer_active_corner = 0, peer_sleep_corner = 0;
|
||||
|
||||
to_active_sleep(pd, corner, &this_active_corner, &this_sleep_corner);
|
||||
|
||||
if (peer && peer->enabled)
|
||||
to_active_sleep(peer, peer->corner, &peer_active_corner,
|
||||
&peer_sleep_corner);
|
||||
|
||||
active_corner = max(this_active_corner, peer_active_corner);
|
||||
|
||||
ret = rpmhpd_send_corner(pd, RPMH_ACTIVE_ONLY_STATE, active_corner,
|
||||
active_corner > pd->active_corner);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
pd->active_corner = active_corner;
|
||||
|
||||
if (peer) {
|
||||
peer->active_corner = active_corner;
|
||||
|
||||
ret = rpmhpd_send_corner(pd, RPMH_WAKE_ONLY_STATE,
|
||||
active_corner, false);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
sleep_corner = max(this_sleep_corner, peer_sleep_corner);
|
||||
|
||||
return rpmhpd_send_corner(pd, RPMH_SLEEP_STATE, sleep_corner,
|
||||
false);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rpmhpd_power_on(struct generic_pm_domain *domain)
|
||||
{
|
||||
struct rpmhpd *pd = domain_to_rpmhpd(domain);
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&rpmhpd_lock);
|
||||
|
||||
if (pd->corner)
|
||||
ret = rpmhpd_aggregate_corner(pd, pd->corner);
|
||||
|
||||
if (!ret)
|
||||
pd->enabled = true;
|
||||
|
||||
mutex_unlock(&rpmhpd_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rpmhpd_power_off(struct generic_pm_domain *domain)
|
||||
{
|
||||
struct rpmhpd *pd = domain_to_rpmhpd(domain);
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&rpmhpd_lock);
|
||||
|
||||
ret = rpmhpd_aggregate_corner(pd, pd->level[0]);
|
||||
|
||||
if (!ret)
|
||||
pd->enabled = false;
|
||||
|
||||
mutex_unlock(&rpmhpd_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rpmhpd_set_performance_state(struct generic_pm_domain *domain,
|
||||
unsigned int level)
|
||||
{
|
||||
struct rpmhpd *pd = domain_to_rpmhpd(domain);
|
||||
int ret = 0, i;
|
||||
|
||||
mutex_lock(&rpmhpd_lock);
|
||||
|
||||
for (i = 0; i < pd->level_count; i++)
|
||||
if (level <= pd->level[i])
|
||||
break;
|
||||
|
||||
/*
|
||||
* If the level requested is more than that supported by the
|
||||
* max corner, just set it to max anyway.
|
||||
*/
|
||||
if (i == pd->level_count)
|
||||
i--;
|
||||
|
||||
if (pd->enabled) {
|
||||
ret = rpmhpd_aggregate_corner(pd, i);
|
||||
if (ret)
|
||||
goto out;
|
||||
}
|
||||
|
||||
pd->corner = i;
|
||||
out:
|
||||
mutex_unlock(&rpmhpd_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static unsigned int rpmhpd_get_performance_state(struct generic_pm_domain *genpd,
|
||||
struct dev_pm_opp *opp)
|
||||
{
|
||||
return dev_pm_opp_get_level(opp);
|
||||
}
|
||||
|
||||
static int rpmhpd_update_level_mapping(struct rpmhpd *rpmhpd)
|
||||
{
|
||||
int i;
|
||||
const u16 *buf;
|
||||
|
||||
buf = cmd_db_read_aux_data(rpmhpd->res_name, &rpmhpd->level_count);
|
||||
if (IS_ERR(buf))
|
||||
return PTR_ERR(buf);
|
||||
|
||||
/* 2 bytes used for each command DB aux data entry */
|
||||
rpmhpd->level_count >>= 1;
|
||||
|
||||
if (rpmhpd->level_count > RPMH_ARC_MAX_LEVELS)
|
||||
return -EINVAL;
|
||||
|
||||
for (i = 0; i < rpmhpd->level_count; i++) {
|
||||
rpmhpd->level[i] = buf[i];
|
||||
|
||||
/*
|
||||
* The AUX data may be zero padded. These 0 valued entries at
|
||||
* the end of the map must be ignored.
|
||||
*/
|
||||
if (i > 0 && rpmhpd->level[i] == 0) {
|
||||
rpmhpd->level_count = i;
|
||||
break;
|
||||
}
|
||||
pr_debug("%s: ARC hlvl=%2d --> vlvl=%4u\n", rpmhpd->res_name, i,
|
||||
rpmhpd->level[i]);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rpmhpd_probe(struct platform_device *pdev)
|
||||
{
|
||||
int i, ret;
|
||||
size_t num_pds;
|
||||
struct device *dev = &pdev->dev;
|
||||
struct genpd_onecell_data *data;
|
||||
struct rpmhpd **rpmhpds;
|
||||
const struct rpmhpd_desc *desc;
|
||||
|
||||
desc = of_device_get_match_data(dev);
|
||||
if (!desc)
|
||||
return -EINVAL;
|
||||
|
||||
rpmhpds = desc->rpmhpds;
|
||||
num_pds = desc->num_pds;
|
||||
|
||||
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
|
||||
if (!data)
|
||||
return -ENOMEM;
|
||||
|
||||
data->domains = devm_kcalloc(dev, num_pds, sizeof(*data->domains),
|
||||
GFP_KERNEL);
|
||||
if (!data->domains)
|
||||
return -ENOMEM;
|
||||
|
||||
data->num_domains = num_pds;
|
||||
|
||||
for (i = 0; i < num_pds; i++) {
|
||||
if (!rpmhpds[i]) {
|
||||
dev_warn(dev, "rpmhpds[%d] is empty\n", i);
|
||||
continue;
|
||||
}
|
||||
|
||||
rpmhpds[i]->dev = dev;
|
||||
rpmhpds[i]->addr = cmd_db_read_addr(rpmhpds[i]->res_name);
|
||||
if (!rpmhpds[i]->addr) {
|
||||
dev_err(dev, "Could not find RPMh address for resource %s\n",
|
||||
rpmhpds[i]->res_name);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = cmd_db_read_slave_id(rpmhpds[i]->res_name);
|
||||
if (ret != CMD_DB_HW_ARC) {
|
||||
dev_err(dev, "RPMh slave ID mismatch\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
ret = rpmhpd_update_level_mapping(rpmhpds[i]);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
rpmhpds[i]->pd.power_off = rpmhpd_power_off;
|
||||
rpmhpds[i]->pd.power_on = rpmhpd_power_on;
|
||||
rpmhpds[i]->pd.set_performance_state = rpmhpd_set_performance_state;
|
||||
rpmhpds[i]->pd.opp_to_performance_state = rpmhpd_get_performance_state;
|
||||
pm_genpd_init(&rpmhpds[i]->pd, NULL, true);
|
||||
|
||||
data->domains[i] = &rpmhpds[i]->pd;
|
||||
}
|
||||
|
||||
/* Add subdomains */
|
||||
for (i = 0; i < num_pds; i++) {
|
||||
if (!rpmhpds[i])
|
||||
continue;
|
||||
if (rpmhpds[i]->parent)
|
||||
pm_genpd_add_subdomain(rpmhpds[i]->parent,
|
||||
&rpmhpds[i]->pd);
|
||||
}
|
||||
|
||||
return of_genpd_add_provider_onecell(pdev->dev.of_node, data);
|
||||
}
|
||||
|
||||
static struct platform_driver rpmhpd_driver = {
|
||||
.driver = {
|
||||
.name = "qcom-rpmhpd",
|
||||
.of_match_table = rpmhpd_match_table,
|
||||
.suppress_bind_attrs = true,
|
||||
},
|
||||
.probe = rpmhpd_probe,
|
||||
};
|
||||
|
||||
static int __init rpmhpd_init(void)
|
||||
{
|
||||
return platform_driver_register(&rpmhpd_driver);
|
||||
}
|
||||
core_initcall(rpmhpd_init);
|
||||
315
drivers/soc/qcom/rpmpd.c
Normal file
315
drivers/soc/qcom/rpmpd.c
Normal file
@ -0,0 +1,315 @@
|
||||
// SPDX-License-Identifier: GPL-2.0
|
||||
/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved. */
|
||||
|
||||
#include <linux/err.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/mutex.h>
|
||||
#include <linux/pm_domain.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/pm_opp.h>
|
||||
#include <linux/soc/qcom/smd-rpm.h>
|
||||
|
||||
#include <dt-bindings/power/qcom-rpmpd.h>
|
||||
|
||||
#define domain_to_rpmpd(domain) container_of(domain, struct rpmpd, pd)
|
||||
|
||||
/* Resource types */
|
||||
#define RPMPD_SMPA 0x61706d73
|
||||
#define RPMPD_LDOA 0x616f646c
|
||||
|
||||
/* Operation Keys */
|
||||
#define KEY_CORNER 0x6e726f63 /* corn */
|
||||
#define KEY_ENABLE 0x6e657773 /* swen */
|
||||
#define KEY_FLOOR_CORNER 0x636676 /* vfc */
|
||||
|
||||
#define MAX_RPMPD_STATE 6
|
||||
|
||||
#define DEFINE_RPMPD_CORNER_SMPA(_platform, _name, _active, r_id) \
|
||||
static struct rpmpd _platform##_##_active; \
|
||||
static struct rpmpd _platform##_##_name = { \
|
||||
.pd = { .name = #_name, }, \
|
||||
.peer = &_platform##_##_active, \
|
||||
.res_type = RPMPD_SMPA, \
|
||||
.res_id = r_id, \
|
||||
.key = KEY_CORNER, \
|
||||
}; \
|
||||
static struct rpmpd _platform##_##_active = { \
|
||||
.pd = { .name = #_active, }, \
|
||||
.peer = &_platform##_##_name, \
|
||||
.active_only = true, \
|
||||
.res_type = RPMPD_SMPA, \
|
||||
.res_id = r_id, \
|
||||
.key = KEY_CORNER, \
|
||||
}
|
||||
|
||||
#define DEFINE_RPMPD_CORNER_LDOA(_platform, _name, r_id) \
|
||||
static struct rpmpd _platform##_##_name = { \
|
||||
.pd = { .name = #_name, }, \
|
||||
.res_type = RPMPD_LDOA, \
|
||||
.res_id = r_id, \
|
||||
.key = KEY_CORNER, \
|
||||
}
|
||||
|
||||
#define DEFINE_RPMPD_VFC(_platform, _name, r_id, r_type) \
|
||||
static struct rpmpd _platform##_##_name = { \
|
||||
.pd = { .name = #_name, }, \
|
||||
.res_type = r_type, \
|
||||
.res_id = r_id, \
|
||||
.key = KEY_FLOOR_CORNER, \
|
||||
}
|
||||
|
||||
#define DEFINE_RPMPD_VFC_SMPA(_platform, _name, r_id) \
|
||||
DEFINE_RPMPD_VFC(_platform, _name, r_id, RPMPD_SMPA)
|
||||
|
||||
#define DEFINE_RPMPD_VFC_LDOA(_platform, _name, r_id) \
|
||||
DEFINE_RPMPD_VFC(_platform, _name, r_id, RPMPD_LDOA)
|
||||
|
||||
struct rpmpd_req {
|
||||
__le32 key;
|
||||
__le32 nbytes;
|
||||
__le32 value;
|
||||
};
|
||||
|
||||
struct rpmpd {
|
||||
struct generic_pm_domain pd;
|
||||
struct rpmpd *peer;
|
||||
const bool active_only;
|
||||
unsigned int corner;
|
||||
bool enabled;
|
||||
const char *res_name;
|
||||
const int res_type;
|
||||
const int res_id;
|
||||
struct qcom_smd_rpm *rpm;
|
||||
__le32 key;
|
||||
};
|
||||
|
||||
struct rpmpd_desc {
|
||||
struct rpmpd **rpmpds;
|
||||
size_t num_pds;
|
||||
};
|
||||
|
||||
static DEFINE_MUTEX(rpmpd_lock);
|
||||
|
||||
/* msm8996 RPM Power domains */
|
||||
DEFINE_RPMPD_CORNER_SMPA(msm8996, vddcx, vddcx_ao, 1);
|
||||
DEFINE_RPMPD_CORNER_SMPA(msm8996, vddmx, vddmx_ao, 2);
|
||||
DEFINE_RPMPD_CORNER_LDOA(msm8996, vddsscx, 26);
|
||||
|
||||
DEFINE_RPMPD_VFC_SMPA(msm8996, vddcx_vfc, 1);
|
||||
DEFINE_RPMPD_VFC_LDOA(msm8996, vddsscx_vfc, 26);
|
||||
|
||||
static struct rpmpd *msm8996_rpmpds[] = {
|
||||
[MSM8996_VDDCX] = &msm8996_vddcx,
|
||||
[MSM8996_VDDCX_AO] = &msm8996_vddcx_ao,
|
||||
[MSM8996_VDDCX_VFC] = &msm8996_vddcx_vfc,
|
||||
[MSM8996_VDDMX] = &msm8996_vddmx,
|
||||
[MSM8996_VDDMX_AO] = &msm8996_vddmx_ao,
|
||||
[MSM8996_VDDSSCX] = &msm8996_vddsscx,
|
||||
[MSM8996_VDDSSCX_VFC] = &msm8996_vddsscx_vfc,
|
||||
};
|
||||
|
||||
static const struct rpmpd_desc msm8996_desc = {
|
||||
.rpmpds = msm8996_rpmpds,
|
||||
.num_pds = ARRAY_SIZE(msm8996_rpmpds),
|
||||
};
|
||||
|
||||
static const struct of_device_id rpmpd_match_table[] = {
|
||||
{ .compatible = "qcom,msm8996-rpmpd", .data = &msm8996_desc },
|
||||
{ }
|
||||
};
|
||||
|
||||
static int rpmpd_send_enable(struct rpmpd *pd, bool enable)
|
||||
{
|
||||
struct rpmpd_req req = {
|
||||
.key = KEY_ENABLE,
|
||||
.nbytes = cpu_to_le32(sizeof(u32)),
|
||||
.value = cpu_to_le32(enable),
|
||||
};
|
||||
|
||||
return qcom_rpm_smd_write(pd->rpm, QCOM_SMD_RPM_ACTIVE_STATE,
|
||||
pd->res_type, pd->res_id, &req, sizeof(req));
|
||||
}
|
||||
|
||||
static int rpmpd_send_corner(struct rpmpd *pd, int state, unsigned int corner)
|
||||
{
|
||||
struct rpmpd_req req = {
|
||||
.key = pd->key,
|
||||
.nbytes = cpu_to_le32(sizeof(u32)),
|
||||
.value = cpu_to_le32(corner),
|
||||
};
|
||||
|
||||
return qcom_rpm_smd_write(pd->rpm, state, pd->res_type, pd->res_id,
|
||||
&req, sizeof(req));
|
||||
};
|
||||
|
||||
static void to_active_sleep(struct rpmpd *pd, unsigned int corner,
|
||||
unsigned int *active, unsigned int *sleep)
|
||||
{
|
||||
*active = corner;
|
||||
|
||||
if (pd->active_only)
|
||||
*sleep = 0;
|
||||
else
|
||||
*sleep = *active;
|
||||
}
|
||||
|
||||
static int rpmpd_aggregate_corner(struct rpmpd *pd)
|
||||
{
|
||||
int ret;
|
||||
struct rpmpd *peer = pd->peer;
|
||||
unsigned int active_corner, sleep_corner;
|
||||
unsigned int this_active_corner = 0, this_sleep_corner = 0;
|
||||
unsigned int peer_active_corner = 0, peer_sleep_corner = 0;
|
||||
|
||||
to_active_sleep(pd, pd->corner, &this_active_corner, &this_sleep_corner);
|
||||
|
||||
if (peer && peer->enabled)
|
||||
to_active_sleep(peer, peer->corner, &peer_active_corner,
|
||||
&peer_sleep_corner);
|
||||
|
||||
active_corner = max(this_active_corner, peer_active_corner);
|
||||
|
||||
ret = rpmpd_send_corner(pd, QCOM_SMD_RPM_ACTIVE_STATE, active_corner);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
sleep_corner = max(this_sleep_corner, peer_sleep_corner);
|
||||
|
||||
return rpmpd_send_corner(pd, QCOM_SMD_RPM_SLEEP_STATE, sleep_corner);
|
||||
}
|
||||
|
||||
static int rpmpd_power_on(struct generic_pm_domain *domain)
|
||||
{
|
||||
int ret;
|
||||
struct rpmpd *pd = domain_to_rpmpd(domain);
|
||||
|
||||
mutex_lock(&rpmpd_lock);
|
||||
|
||||
ret = rpmpd_send_enable(pd, true);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
pd->enabled = true;
|
||||
|
||||
if (pd->corner)
|
||||
ret = rpmpd_aggregate_corner(pd);
|
||||
|
||||
out:
|
||||
mutex_unlock(&rpmpd_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rpmpd_power_off(struct generic_pm_domain *domain)
|
||||
{
|
||||
int ret;
|
||||
struct rpmpd *pd = domain_to_rpmpd(domain);
|
||||
|
||||
mutex_lock(&rpmpd_lock);
|
||||
|
||||
ret = rpmpd_send_enable(pd, false);
|
||||
if (!ret)
|
||||
pd->enabled = false;
|
||||
|
||||
mutex_unlock(&rpmpd_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rpmpd_set_performance(struct generic_pm_domain *domain,
|
||||
unsigned int state)
|
||||
{
|
||||
int ret = 0;
|
||||
struct rpmpd *pd = domain_to_rpmpd(domain);
|
||||
|
||||
if (state > MAX_RPMPD_STATE)
|
||||
goto out;
|
||||
|
||||
mutex_lock(&rpmpd_lock);
|
||||
|
||||
pd->corner = state;
|
||||
|
||||
if (!pd->enabled && pd->key != KEY_FLOOR_CORNER)
|
||||
goto out;
|
||||
|
||||
ret = rpmpd_aggregate_corner(pd);
|
||||
|
||||
out:
|
||||
mutex_unlock(&rpmpd_lock);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static unsigned int rpmpd_get_performance(struct generic_pm_domain *genpd,
|
||||
struct dev_pm_opp *opp)
|
||||
{
|
||||
return dev_pm_opp_get_level(opp);
|
||||
}
|
||||
|
||||
static int rpmpd_probe(struct platform_device *pdev)
|
||||
{
|
||||
int i;
|
||||
size_t num;
|
||||
struct genpd_onecell_data *data;
|
||||
struct qcom_smd_rpm *rpm;
|
||||
struct rpmpd **rpmpds;
|
||||
const struct rpmpd_desc *desc;
|
||||
|
||||
rpm = dev_get_drvdata(pdev->dev.parent);
|
||||
if (!rpm) {
|
||||
dev_err(&pdev->dev, "Unable to retrieve handle to RPM\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
desc = of_device_get_match_data(&pdev->dev);
|
||||
if (!desc)
|
||||
return -EINVAL;
|
||||
|
||||
rpmpds = desc->rpmpds;
|
||||
num = desc->num_pds;
|
||||
|
||||
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
|
||||
if (!data)
|
||||
return -ENOMEM;
|
||||
|
||||
data->domains = devm_kcalloc(&pdev->dev, num, sizeof(*data->domains),
|
||||
GFP_KERNEL);
|
||||
data->num_domains = num;
|
||||
|
||||
for (i = 0; i < num; i++) {
|
||||
if (!rpmpds[i]) {
|
||||
dev_warn(&pdev->dev, "rpmpds[] with empty entry at index=%d\n",
|
||||
i);
|
||||
continue;
|
||||
}
|
||||
|
||||
rpmpds[i]->rpm = rpm;
|
||||
rpmpds[i]->pd.power_off = rpmpd_power_off;
|
||||
rpmpds[i]->pd.power_on = rpmpd_power_on;
|
||||
rpmpds[i]->pd.set_performance_state = rpmpd_set_performance;
|
||||
rpmpds[i]->pd.opp_to_performance_state = rpmpd_get_performance;
|
||||
pm_genpd_init(&rpmpds[i]->pd, NULL, true);
|
||||
|
||||
data->domains[i] = &rpmpds[i]->pd;
|
||||
}
|
||||
|
||||
return of_genpd_add_provider_onecell(pdev->dev.of_node, data);
|
||||
}
|
||||
|
||||
static struct platform_driver rpmpd_driver = {
|
||||
.driver = {
|
||||
.name = "qcom-rpmpd",
|
||||
.of_match_table = rpmpd_match_table,
|
||||
.suppress_bind_attrs = true,
|
||||
},
|
||||
.probe = rpmpd_probe,
|
||||
};
|
||||
|
||||
static int __init rpmpd_init(void)
|
||||
{
|
||||
return platform_driver_register(&rpmpd_driver);
|
||||
}
|
||||
core_initcall(rpmpd_init);
|
||||
@ -227,6 +227,7 @@ static const struct of_device_id qcom_smd_rpm_of_match[] = {
|
||||
{ .compatible = "qcom,rpm-msm8974" },
|
||||
{ .compatible = "qcom,rpm-msm8996" },
|
||||
{ .compatible = "qcom,rpm-msm8998" },
|
||||
{ .compatible = "qcom,rpm-sdm660" },
|
||||
{ .compatible = "qcom,rpm-qcs404" },
|
||||
{}
|
||||
};
|
||||
|
||||
39
include/dt-bindings/power/qcom-rpmpd.h
Normal file
39
include/dt-bindings/power/qcom-rpmpd.h
Normal file
@ -0,0 +1,39 @@
|
||||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/* Copyright (c) 2018, The Linux Foundation. All rights reserved. */
|
||||
|
||||
#ifndef _DT_BINDINGS_POWER_QCOM_RPMPD_H
|
||||
#define _DT_BINDINGS_POWER_QCOM_RPMPD_H
|
||||
|
||||
/* SDM845 Power Domain Indexes */
|
||||
#define SDM845_EBI 0
|
||||
#define SDM845_MX 1
|
||||
#define SDM845_MX_AO 2
|
||||
#define SDM845_CX 3
|
||||
#define SDM845_CX_AO 4
|
||||
#define SDM845_LMX 5
|
||||
#define SDM845_LCX 6
|
||||
#define SDM845_GFX 7
|
||||
#define SDM845_MSS 8
|
||||
|
||||
/* SDM845 Power Domain performance levels */
|
||||
#define RPMH_REGULATOR_LEVEL_RETENTION 16
|
||||
#define RPMH_REGULATOR_LEVEL_MIN_SVS 48
|
||||
#define RPMH_REGULATOR_LEVEL_LOW_SVS 64
|
||||
#define RPMH_REGULATOR_LEVEL_SVS 128
|
||||
#define RPMH_REGULATOR_LEVEL_SVS_L1 192
|
||||
#define RPMH_REGULATOR_LEVEL_NOM 256
|
||||
#define RPMH_REGULATOR_LEVEL_NOM_L1 320
|
||||
#define RPMH_REGULATOR_LEVEL_NOM_L2 336
|
||||
#define RPMH_REGULATOR_LEVEL_TURBO 384
|
||||
#define RPMH_REGULATOR_LEVEL_TURBO_L1 416
|
||||
|
||||
/* MSM8996 Power Domain Indexes */
|
||||
#define MSM8996_VDDCX 0
|
||||
#define MSM8996_VDDCX_AO 1
|
||||
#define MSM8996_VDDCX_VFC 2
|
||||
#define MSM8996_VDDMX 3
|
||||
#define MSM8996_VDDMX_AO 4
|
||||
#define MSM8996_VDDSSCX 5
|
||||
#define MSM8996_VDDSSCX_VFC 6
|
||||
|
||||
#endif
|
||||
@ -86,6 +86,8 @@ unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
|
||||
|
||||
unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
|
||||
|
||||
unsigned int dev_pm_opp_get_level(struct dev_pm_opp *opp);
|
||||
|
||||
bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp);
|
||||
|
||||
int dev_pm_opp_get_opp_count(struct device *dev);
|
||||
@ -158,6 +160,11 @@ static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline unsigned int dev_pm_opp_get_level(struct dev_pm_opp *opp)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline bool dev_pm_opp_is_turbo(struct dev_pm_opp *opp)
|
||||
{
|
||||
return false;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user