From: Thara Gopinath <thara.gopinath@linaro.org>
To: edubezval@gmail.com, rui.zhang@intel.com, ulf.hansson@linaro.org,
daniel.lezcano@linaro.org, bjorn.andersson@linaro.org,
agross@kernel.org
Cc: amit.kucheria@verdurent.com, mark.rutland@arm.com,
rjw@rjwysocki.net, linux-pm@vger.kernel.org,
devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [Patch v4 5/7] soc: qcom: Extend RPMh power controller driver to register warming devices.
Date: Wed, 20 Nov 2019 07:56:31 -0500 [thread overview]
Message-ID: <1574254593-16078-6-git-send-email-thara.gopinath@linaro.org> (raw)
In-Reply-To: <1574254593-16078-1-git-send-email-thara.gopinath@linaro.org>
RPMh power control hosts power domains that can be used as
thermal warming devices. Register these power domains
with the generic power domain warming device thermal framework.
Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org>
---
v3->v4:
- Introduce a boolean value is_warming_dev in rpmhpd structure to
indicate if a generic power domain can be used as a warming
device or not.With this change, device tree no longer has to
specify which power domain inside the rpmh power domain provider
is a warming device.
- Move registering of warming devices into a late initcall to
ensure that warming devices are registerd after thermal
framework is initialized.
drivers/soc/qcom/rpmhpd.c | 38 +++++++++++++++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
index 9d37534..5666d1f 100644
--- a/drivers/soc/qcom/rpmhpd.c
+++ b/drivers/soc/qcom/rpmhpd.c
@@ -11,6 +11,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
+#include <linux/pwr_domain_warming.h>
#include <soc/qcom/cmd-db.h>
#include <soc/qcom/rpmh.h>
#include <dt-bindings/power/qcom-rpmpd.h>
@@ -48,6 +49,7 @@ struct rpmhpd {
bool enabled;
const char *res_name;
u32 addr;
+ bool is_warming_dev;
};
struct rpmhpd_desc {
@@ -55,6 +57,8 @@ struct rpmhpd_desc {
size_t num_pds;
};
+const struct rpmhpd_desc *global_desc;
+
static DEFINE_MUTEX(rpmhpd_lock);
/* SDM845 RPMH powerdomains */
@@ -89,6 +93,7 @@ static struct rpmhpd sdm845_mx = {
.pd = { .name = "mx", },
.peer = &sdm845_mx_ao,
.res_name = "mx.lvl",
+ .is_warming_dev = true,
};
static struct rpmhpd sdm845_mx_ao = {
@@ -396,7 +401,14 @@ static int rpmhpd_probe(struct platform_device *pdev)
&rpmhpds[i]->pd);
}
- return of_genpd_add_provider_onecell(pdev->dev.of_node, data);
+ ret = of_genpd_add_provider_onecell(pdev->dev.of_node, data);
+
+ if (ret)
+ return ret;
+
+ global_desc = desc;
+
+ return 0;
}
static struct platform_driver rpmhpd_driver = {
@@ -413,3 +425,27 @@ static int __init rpmhpd_init(void)
return platform_driver_register(&rpmhpd_driver);
}
core_initcall(rpmhpd_init);
+
+static int __init rpmhpd_init_warming_device(void)
+{
+ size_t num_pds;
+ struct rpmhpd **rpmhpds;
+ int i;
+
+ if (!global_desc)
+ return -EINVAL;
+
+ rpmhpds = global_desc->rpmhpds;
+ num_pds = global_desc->num_pds;
+
+ if (!of_find_property(rpmhpds[0]->dev->of_node, "#cooling-cells", NULL))
+ return 0;
+
+ for (i = 0; i < num_pds; i++)
+ if (rpmhpds[i]->is_warming_dev)
+ pwr_domain_warming_register(rpmhpds[i]->dev,
+ rpmhpds[i]->res_name, i);
+
+ return 0;
+}
+late_initcall(rpmhpd_init_warming_device);
--
2.1.4
next prev parent reply other threads:[~2019-11-20 12:57 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-20 12:56 [Patch v4 0/7] Introduce Power domain based warming device driver Thara Gopinath
2019-11-20 12:56 ` [Patch v4 1/7] PM/Domains: Add support for retrieving genpd performance states information Thara Gopinath
2019-11-20 12:56 ` [Patch v4 2/7] soc: qcom: rpmhpd: Introduce function to retrieve power domain performance state count Thara Gopinath
2020-02-04 16:10 ` Ulf Hansson
2019-11-20 12:56 ` [Patch v4 3/7] thermal: core: Allow cooling devices to register a parent Thara Gopinath
2020-02-04 16:22 ` Ulf Hansson
2019-11-20 12:56 ` [Patch v4 4/7] thermal: Add generic power domain warming device driver Thara Gopinath
2020-02-04 16:54 ` Ulf Hansson
2020-03-01 23:00 ` Thara Gopinath
2020-03-13 13:13 ` Ulf Hansson
2020-03-13 15:02 ` Thara Gopinath
2019-11-20 12:56 ` Thara Gopinath [this message]
2020-02-04 17:40 ` [Patch v4 5/7] soc: qcom: Extend RPMh power controller driver to register warming devices Ulf Hansson
2020-03-01 23:36 ` Thara Gopinath
2019-11-20 12:56 ` [Patch v4 6/7] dt-bindings: soc: qcom: Extend RPMh power controller binding to describe thermal warming device Thara Gopinath
2019-11-22 23:59 ` Rob Herring
2020-02-04 17:41 ` Ulf Hansson
2020-03-01 23:37 ` Thara Gopinath
2019-11-20 12:56 ` [Patch v4 7/7] arm64: dts: qcom: Indicate rpmhpd hosts a power domain that can be used as a " Thara Gopinath
2020-02-04 17:40 ` Ulf Hansson
2020-01-09 15:02 ` [Patch v4 0/7] Introduce Power domain based warming device driver Thara Gopinath
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