summaryrefslogtreecommitdiff
path: root/drivers/soc/qcom/rpmhpd.c
AgeCommit message (Collapse)Author
2023-05-24soc: qcom: rpmhpd: Add SA8155P power domainsKonrad Dybcio
Add the power domains exposed by RPMh in the Qualcomm SA8155P platform. Turns out they differ from SM8150. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Tested-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230411-topic-hanaau-v2-2-fd3d70844b31@linaro.org
2023-01-10soc: qcom: rmphpd: add power domains for sa8775pBartosz Golaszewski
Add power domain description for sa8775p and a new compatible to match it. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230109174511.1740856-15-brgl@bgdev.pl
2022-12-05soc: qcom: rpmhpd: Add SM8550 power domainsAbel Vesa
Add the power domains exposed by RPMH in the Qualcomm SM8550 platform. Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20221116111745.2633074-3-abel.vesa@linaro.org
2022-11-07soc: qcom: rpmhpd: Add QDU1000/QRU1000 power domainsMelody Olvera
Add the power domains exposed by RPMH in the Qualcomm QDU1000 and QRU1000 platforms. Signed-off-by: Melody Olvera <quic_molvera@quicinc.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20221026190549.4005703-4-quic_molvera@quicinc.com
2022-10-17soc: qcom: rpmhpd: Use highest corner until sync_stateBjorn Andersson
In some cases the hardware that the bootloader has left configured depends on RPMH power domains for their operation up until the point where the related Linux device driver probes and can inherit that configuration, or power down the hardware gracefully. Unfortunately as Linux probes the releavant drivers in sequence there are periods during the Linux boot flow where either the genpd refcount will reach 0, or worse where the active performance_state votes does not meet the requirements of the state that the hardware was left in. One specific example of this is during boot of e.g. SM8150/SC8180X, where the display clock controller probes, without any particular performance state needs (to access its registers). This will drop the MMCX rail to MIN_SVS, which isn't sufficient to sustain the clock rates that the later probing MDP is configured to. This results in an unrecoverable system state. Handle both these cases by keeping the RPMH power-domais that are referenced voted for highest state, until sync_state indicates that all devices referencing the RPMH power-domain driver has been probed. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Caleb Connolly <caleb@connolly.tech> Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> [bjorn: Added print for sync_state errors] Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20220915205559.14574-1-quic_bjorande@quicinc.com
2022-10-17soc: qcom: rpmhpd: add sdm670 power domainsRichard Acayan
The Snapdragon 670 has similar power domains to SDM845 but no EBI power domain. Add a new array for them to avoid requesting a power domain which is unsupported by the hardware. Signed-off-by: Richard Acayan <mailingradian@gmail.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20221004221130.14076-3-mailingradian@gmail.com
2022-06-25soc: qcom: rpmhpd: fix typos in commentJulia Lawall
Spelling mistakes (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20220521111145.81697-9-Julia.Lawall@inria.fr
2022-04-28soc: qcom: rpmhpd: add sc8280xp & sa8540p rpmh power-domainsBjorn Andersson
The Qualcomm sc8280xp platform has 13 and the sa8540p platform has 11 power-domains. Add compatibles, the typically used ones power-domains and their relevant active-only variants, to the RPMh power-domain driver. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20220426233508.1762345-4-bjorn.andersson@linaro.org
2022-04-28soc: qcom: rpmhpd: Don't warn about sparse rpmhpd arraysBjorn Andersson
In some cases the DT binding will fully describe the set of available RPMh power-domains, but there is no reason for exposing them all in the implementation. Omitting individual data->domains is handle gracefully by of_genpd_add_provider_onecell(), so there's no reason for printing a warning when this occurs. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Johan Hovold <johan+linaro@kernel.org> Link: https://lore.kernel.org/r/20220426233508.1762345-3-bjorn.andersson@linaro.org
2022-04-07soc: qcom: rpmhpd: Add SDX65 power domainsRohit Agarwal
Add power domains found in Qualcomm SDX65 SoC. Signed-off-by: Rohit Agarwal <quic_rohiagar@quicinc.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/1647410837-22537-5-git-send-email-quic_rohiagar@quicinc.com
2021-12-20soc: qcom: rpmhpd: Sort power-domain definitions and listsRajendra Nayak
Sort all power-domain defines and the SoC specific lists in alphabetical order for better readability. No functional changes. Signed-off-by: Rajendra Nayak <quic_rjendra@quicinc.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/1639063917-9011-5-git-send-email-quic_rjendra@quicinc.com
2021-12-20soc: qcom: rpmhpd: Remove mx/cx relationship on sc7280Rajendra Nayak
The requirement to specify the active + sleep and active-only MX power-domains as the parents of the corresponding CX power domains is not applicable on sc7280. Fix it by using the cx/cx_ao structs for sc7280 instead of the _w_mx_parent ones. Signed-off-by: Rajendra Nayak <quic_rjendra@quicinc.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/1639063917-9011-4-git-send-email-quic_rjendra@quicinc.com
2021-12-20soc: qcom: rpmhpd: Rename rpmhpd struct namesRajendra Nayak
The rpmhpd structs were named with a SoC-name prefix, but then they got reused across multiple SoC families making things confusing. Rename all the struct names to remove SoC-name prefixes. While we do this we end up with some power-domains without parents, and some with and at times different parents across SoCs. use a _w_<parent-name>_parent suffix for such cases. No functional change as part of this patch. Signed-off-by: Rajendra Nayak <quic_rjendra@quicinc.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/1639063917-9011-3-git-send-email-quic_rjendra@quicinc.com
2021-12-20soc: qcom: rpmhpd: sm8450: Add the missing .peer for sm8450_cx_aoRajendra Nayak
sm8450_cx and sm8450_cx_ao should be peers of each other, add the missing .peer entry for sm8450_cx_ao Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Vinod Koul <vkoul@kernel.org> Signed-off-by: Rajendra Nayak <quic_rjendra@quicinc.com> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/1639063917-9011-2-git-send-email-quic_rjendra@quicinc.com
2021-12-20soc: qcom: rpmhpd: Add SM8450 power domainsDmitry Baryshkov
Add the power domains exposed by RPMH in the Qualcomm SM8450 platform. Unlike previous generations CX domain is not a child of MX domain. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20211201072745.3969077-7-vkoul@kernel.org
2021-10-23soc: qcom: rpmhpd: fix sm8350_mxc's peer domainDmitry Baryshkov
The sm8350_mxc's domain description incorrectly references sm8150_mmcx_ao as a peer instead of sm8350_mxc_ao. Correct this typo. Fixes: 639c85628757 ("soc: qcom: rpmhpd: Add SM8350 power domains") Cc: Vinod Koul <vkoul@kernel.org> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Link: https://lore.kernel.org/r/20211020012639.1183806-1-dmitry.baryshkov@linaro.org
2021-10-15soc: qcom: rpmhpd: Make power_on actually enable the domainBjorn Andersson
The general expectation is that powering on a power-domain should make the power domain deliver some power, and if a specific performance state is needed further requests has to be made. But in contrast with other power-domain implementations (e.g. rpmpd) the RPMh does not have an interface to enable the power, so the driver has to vote for a particular corner (performance level) in rpmh_power_on(). But the corner is never initialized, so a typical request to simply enable the power domain would not actually turn on the hardware. Further more, when no more clients vote for a performance state (i.e. the aggregated vote is 0) the power domain would be turned off. Fix both of these issues by always voting for a corner with non-zero value, when the power domain is enabled. The tracking of the lowest non-zero corner is performed to handle the corner case if there's ever a domain with a non-zero lowest corner, in which case both rpmh_power_on() and rpmh_rpmhpd_set_performance_state() would be allowed to use this lowest corner. Fixes: 279b7e8a62cc ("soc: qcom: rpmhpd: Add RPMh power domain driver") Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20211005033732.2284447-1-bjorn.andersson@linaro.org
2021-09-21soc: qcom: rpmhpd: Add SM6350Konrad Dybcio
Add the power domains exposed by RPMH in the Qualcomm SM6350 platform. Acked-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org> Link: https://lore.kernel.org/r/20210820203105.229764-4-konrad.dybcio@somainline.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-07-19soc: qcom: rpmhpd: Use corner in power_offBjorn Andersson
rpmhpd_aggregate_corner() takes a corner as parameter, but in rpmhpd_power_off() the code requests the level of the first corner instead. In all (known) current cases the first corner has level 0, so this change should be a nop, but in case that there's a power domain with a non-zero lowest level this makes sure that rpmhpd_power_off() actually requests the lowest level - which is the closest to "power off" we can get. While touching the code, also skip the unnecessary zero-initialization of "ret". Fixes: 279b7e8a62cc ("soc: qcom: rpmhpd: Add RPMh power domain driver") Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Sibi Sankar <sibis@codeaurora.org> Tested-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/20210703005416.2668319-2-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-05-25soc: qcom: rpmhpd: Add SC8180XBjorn Andersson
Add the power domains exposed by RPMH in the Qualcomm SC8180X platform. Reviewed-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20210120225037.1611353-2-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-03-11soc: qcom: rpmhpd: Add sc7280 powerdomainsRajendra Nayak
Add the power domains exposed by RPMH in the Qualcomm Technologies Inc sc7280 platform Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Link: https://lore.kernel.org/r/1614664092-9394-2-git-send-email-rnayak@codeaurora.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-03-11soc: qcom: rpmhpd: Add SM8350 power domainsVinod Koul
This adds the power domains found in SM8350 SoC. Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20210210104257.339462-2-vkoul@kernel.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-26soc: qcom: rpmhpd: Add SDX55 power domainsVinod Koul
This adds the power domains found in SDX55 SoC. Downstream code tells me that we have 3 power domains so add them Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20201126092711.1084518-2-vkoul@kernel.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-11-10soc: qcom: rpmhpd: Provide some missing struct member descriptionsLee Jones
Fixes the following W=1 kernel build warning(s): drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'parent' not described in 'rpmhpd' drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'corner' not described in 'rpmhpd' drivers/soc/qcom/rpmhpd.c:52: warning: Function parameter or member 'active_corner' not described in 'rpmhpd' Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: linux-arm-msm@vger.kernel.org Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20201103152838.1290217-22-lee.jones@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-20soc: qcom: rpmhpd: Add SM8250 power domainsBjorn Andersson
Tested-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20200415062154.741179-2-bjorn.andersson@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-14soc: qcom: rpmhpd: Allow RPMHPD driver to be loaded as a moduleJohn Stultz
This patch allow the rpmhpd driver to be loaded as a permenent module. Meaning it can be loaded from a module, but then cannot be unloaded. Ideally, it would include a remove hook and related logic, but apparently the genpd code isn't able to track usage and cleaning things up? So making it a permenent module at least improves things slightly over requiring it to be a built in driver. Cc: Todd Kjos <tkjos@google.com> Cc: Saravana Kannan <saravanak@google.com> Cc: Andy Gross <agross@kernel.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Rajendra Nayak <rnayak@codeaurora.org> Cc: linux-arm-msm@vger.kernel.org Acked-by: Saravana Kannan <saravanak@google.com> Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: John Stultz <john.stultz@linaro.org> Link: https://lore.kernel.org/r/20200326224459.105170-4-john.stultz@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-07soc: qcom: rpmhpd: Set 'active_only' for active only power domainsDouglas Anderson
The 'active_only' attribute was accidentally never set to true for any power domains meaning that all the code handling this attribute was dead. NOTE that the RPM power domain code (as opposed to the RPMh one) gets this right. Acked-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Fixes: 279b7e8a62cc ("soc: qcom: rpmhpd: Add RPMh power domain driver") Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20190214173633.211000-1-dianders@chromium.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-12-11soc: qcom: rpmhpd: Add SC7180 RPMH power-domainsSibi Sankar
Add support for cx/mx/gfx/lcx/lmx/mss power-domains found on SC7180 SoCs. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/0101016e7f99d9ec-1a5d07da-0a61-4627-bf95-fa9ae06265ca-000000@us-west-2.amazonses.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-12-11soc: qcom: rpmhpd: Add SM8150 RPMH power-domainsSibi Sankar
Add support for cx/mx/gfx/mss/ebi/mmcx/lmx/lcx power-domains found on SM8150 SoCs. Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Link: https://lore.kernel.org/r/0101016e7f99b98b-4a436053-3da0-4011-a41c-de064fb44d7e-000000@us-west-2.amazonses.com Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-22soc: qcom: rpmhpd: Mark mx as a parent for cxRajendra Nayak
Specify the active + sleep and active-only MX power domains as the parents of the corresponding CX power domains. This will ensure that performance state requests on CX automatically generate equivalent requests on MX power domains. This is used to enforce a requirement that exists for various hardware blocks on SDM845 that MX performance state >= CX performance state for a given operating frequency. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-22soc: qcom: rpmhpd: Add RPMh power domain driverRajendra Nayak
The RPMh power domain driver aggregates the corner votes from various consumers for the ARC resources and communicates it to RPMh. With RPMh we use 2 different numbering space for corners, one used by the clients to express their performance needs, and another used to communicate to RPMh hardware. The clients express their performance requirements using a sparse numbering space which are mapped to meaningful levels like RET, SVS, NOMINAL, TURBO etc which then get mapped to another number space between 0 and 15 which is communicated to RPMh. The sparse number space, also referred to as vlvl is mapped to the continuous number space of 0 to 15, also referred to as hlvl, using command DB. Some power domain clients could request a performance state only while the CPU is active, while some others could request for a certain performance state all the time regardless of the state of the CPU. We handle this by internally aggregating the votes from both type of clients and then send the aggregated votes to RPMh. There are also 3 different types of votes that are comunicated to RPMh for every resource. 1. ACTIVE_ONLY: This specifies the requirement for the resource when the CPU is active 2. SLEEP: This specifies the requirement for the resource when the CPU is going to sleep 3. WAKE_ONLY: This specifies the requirement for the resource when the CPU is coming out of sleep to active state We add data for all power domains on sdm845 SoC as part of the patch. The driver can be extended to support other SoCs which support RPMh Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-30 07:54:31 +0000