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path: root/drivers/soc/qcom/rpmpd.c
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2020-04-14soc: qcom: rpmpd: Allow RPMPD driver to be loaded as a moduleJohn Stultz
This patch allow the rpmpd 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? (See: https://lkml.org/lkml/2019/1/24/38) 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/20200326224459.105170-2-john.stultz@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-10-06soc: qcom: rpmpd: Add rpm power domains for msm8976AngeloGioacchino Del Regno
The MSM8956/76 SoCs have two main voltage-level power domains, VDD_CX and VDD_MX, which also have their own voltage-floor-level (VFL) corner. Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-05-29soc: qcom: rpmpd: Add MSM8998 power-domainsSibi Sankar
Add the shared cx/mx and sensor sub-system's cx and mx power-domains found on MSM8998. Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-29soc: qcom: rpmpd: Add QCS404 power-domainsBjorn Andersson
Add the shared cx/mx and the low-power-island's cx and mx power-domains found on QCS404. Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> [sibi: Fixup corner/vfc with vlfl/vfl] Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-29soc: qcom: rpmpd: Modify corner defining macrosBjorn Andersson
QCS404 uses individual resource type magic for each power-domain, so adjust the macros slightly to make them reusable for this. Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> [sibi: Extend rpmpd corner pair to a generic rpmpd pair] Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-29soc: qcom: rpmpd: Add support to set rpmpd state to maxSibi Sankar
rpmpd max state varies across SoCs and SoC families, add support in the driver to make it SoC/SoC family specific Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-29soc: qcom: rpmpd: fixup rpmpd set performance stateSibi Sankar
Remoteproc q6v5-mss calls set_performance_state with INT_MAX on rpmpd. This is currently ignored since it is greater than the max supported state. Fixup rpmpd state to max if the required state is greater than all the supported states. Fixes: 075d3db8d10d ("soc: qcom: rpmpd: Add support for get/set performance state") Reviewed-by: Marc Gonzalez <marc.w.gonzalez@free.fr> Reviewed-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-01-22soc: qcom: rpmpd: Drop family A RPM dependencyBjorn Andersson
The MFD_QCOM_RPM is the RPM in family A, but the rpmpd driver only implements support for SMD based devices. Drop the dependency and remove includes of the family A headers. No functional change. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-22soc: qcom: rpmpd: Add support for get/set performance stateRajendra Nayak
Add support for the .set_performace_state() and .opp_to_performance_state() callbacks in the rpmpd driver. 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: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-22soc: qcom: rpmpd: Add a Power domain driver to model cornersRajendra Nayak
The Power domains for corners just pass the performance state set by the consumers to the RPM (Remote Power manager) which then takes care of setting the appropriate voltage on the corresponding rails to meet the performance needs. We add all power domain data needed on msm8996 here. This driver can easily be extended by adding data for other qualcomm SoCs as well. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>