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From: Viresh Kumar <viresh.kumar@linaro.org>
To: ulf.hansson@linaro.org, Viresh Kumar <vireshk@kernel.org>,
	Nishanth Menon <nm@ti.com>, Stephen Boyd <sboyd@kernel.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>,
	linux-pm@vger.kernel.org,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Rafael Wysocki <rjw@rjwysocki.net>,
	niklas.cassel@linaro.org, rnayak@codeaurora.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH V3 02/10] OPP: Identify and mark genpd OPP tables
Date: Thu, 25 Oct 2018 11:22:39 +0530	[thread overview]
Message-ID: <320abb3732333763c6d87e5e6aa81aa80dbace8d.1540446493.git.viresh.kumar@linaro.org> (raw)
In-Reply-To: <cover.1540446493.git.viresh.kumar@linaro.org>

We need to handle genpd OPP tables differently, this is already the case
at one location and will be extended going forward. Add another field to
the OPP table to check if the table belongs to a genpd or not.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/opp/of.c  | 6 ++++--
 drivers/opp/opp.h | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index 5a4b47958073..5f114cd3d88c 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -92,6 +92,9 @@ void _of_init_opp_table(struct opp_table *opp_table, struct device *dev,
 	of_property_read_u32(np, "voltage-tolerance",
 			     &opp_table->voltage_tolerance_v1);
 
+	if (of_find_property(np, "#power-domain-cells", NULL))
+		opp_table->is_genpd = true;
+
 	/* Get OPP table node */
 	opp_np = _opp_of_get_opp_desc_node(np, index);
 	of_node_put(np);
@@ -326,8 +329,7 @@ static struct dev_pm_opp *_opp_add_static_v2(struct opp_table *opp_table,
 	ret = of_property_read_u64(np, "opp-hz", &rate);
 	if (ret < 0) {
 		/* "opp-hz" is optional for devices like power domains. */
-		if (!of_find_property(dev->of_node, "#power-domain-cells",
-				      NULL)) {
+		if (!opp_table->is_genpd) {
 			dev_err(dev, "%s: opp-hz not found\n", __func__);
 			goto free_opp;
 		}
diff --git a/drivers/opp/opp.h b/drivers/opp/opp.h
index 9c6544b4f4f9..cdb0c2b095e2 100644
--- a/drivers/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -140,6 +140,7 @@ enum opp_table_access {
  * @regulators: Supply regulators
  * @regulator_count: Number of power supply regulators
  * @genpd_performance_state: Device's power domain support performance state.
+ * @is_genpd: Marks if the OPP table belongs to a genpd.
  * @set_opp: Platform specific set_opp callback
  * @set_opp_data: Data to be passed to set_opp callback
  * @dentry:	debugfs dentry pointer of the real device directory (not links).
@@ -178,6 +179,7 @@ struct opp_table {
 	struct regulator **regulators;
 	unsigned int regulator_count;
 	bool genpd_performance_state;
+	bool is_genpd;
 
 	int (*set_opp)(struct dev_pm_set_opp_data *data);
 	struct dev_pm_set_opp_data *set_opp_data;
-- 
2.19.1.568.g152ad8e3369a


  parent reply	other threads:[~2018-10-25  5:53 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-25  5:52 [PATCH V3 00/10] OPP: Support multiple power-domains per device Viresh Kumar
2018-10-25  5:52 ` [PATCH V3 01/10] PM / Domains: Rename genpd virtual devices as virt_dev Viresh Kumar
2018-10-25 10:54   ` Ulf Hansson
2018-10-25  5:52 ` Viresh Kumar [this message]
2018-10-25  5:52 ` [PATCH V3 03/10] OPP: Separate out custom OPP handler specific code Viresh Kumar
2018-10-25  5:52 ` [PATCH V3 04/10] OPP: Populate required opp tables from "required-opps" property Viresh Kumar
2018-10-25  5:52 ` [PATCH V3 05/10] OPP: Populate OPPs " Viresh Kumar
2018-10-25  5:52 ` [PATCH V3 06/10] PM / Domains: Add genpd_opp_to_performance_state() Viresh Kumar
2018-10-25 10:54   ` Ulf Hansson
2018-10-25  5:52 ` [PATCH V3 07/10] OPP: Add dev_pm_opp_{set|put}_genpd_virt_dev() helper Viresh Kumar
2018-10-25 10:54   ` Ulf Hansson
2018-10-25  5:52 ` [PATCH V3 08/10] OPP: Configure all required OPPs Viresh Kumar
2018-10-25 10:54   ` Ulf Hansson
2018-10-25  5:52 ` [PATCH V3 09/10] OPP: Rename and relocate of_genpd_opp_to_performance_state() Viresh Kumar
2018-10-25 10:54   ` Ulf Hansson
2018-11-02  9:15   ` [PATCH V4 " Viresh Kumar
2018-10-25  5:52 ` [PATCH V3 10/10] OPP: Remove of_dev_pm_opp_find_required_opp() Viresh Kumar
2018-10-25 10:54   ` Ulf Hansson

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