From: Ulf Hansson <ulf.hansson@linaro.org>
To: "Rafael J . Wysocki" <rjw@rjwysocki.net>,
Sudeep Holla <sudeep.holla@arm.com>,
Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
linux-pm@vger.kernel.org
Cc: Tony Lindgren <tony@atomide.com>,
Kevin Hilman <khilman@kernel.org>,
Lina Iyer <ilina@codeaurora.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
Lina Iyer <lina.iyer@linaro.org>
Subject: [PATCH v9 10/11] drivers: firmware: psci: Support hierarchical CPU idle states
Date: Wed, 3 Oct 2018 16:38:23 +0200 [thread overview]
Message-ID: <20181003143824.13059-11-ulf.hansson@linaro.org> (raw)
In-Reply-To: <20181003143824.13059-1-ulf.hansson@linaro.org>
From: Lina Iyer <lina.iyer@linaro.org>
Currently CPU's idle states are represented in a flattened model, via the
"cpu-idle-states" binding from within the CPU's device nodes.
Support the hierarchical layout, simply by converting to calling the new OF
helper, of_get_cpu_state_node().
Cc: Lina Iyer <ilina@codeaurora.org>
Suggested-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
Co-developed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
drivers/firmware/psci/psci.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index 9788bfc1cf8b..256b4edbb20a 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -294,8 +294,7 @@ static int psci_dt_cpu_init_idle(struct device_node *cpu_node, int cpu)
struct device_node *state_node;
/* Count idle states */
- while ((state_node = of_parse_phandle(cpu_node, "cpu-idle-states",
- count))) {
+ while ((state_node = of_get_cpu_state_node(cpu_node, count))) {
count++;
of_node_put(state_node);
}
@@ -308,7 +307,7 @@ static int psci_dt_cpu_init_idle(struct device_node *cpu_node, int cpu)
return -ENOMEM;
for (i = 0; i < count; i++) {
- state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);
+ state_node = of_get_cpu_state_node(cpu_node, i);
ret = psci_dt_parse_state_node(state_node, &psci_states[i]);
of_node_put(state_node);
--
2.17.1
next prev parent reply other threads:[~2018-10-03 14:39 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-03 14:38 [PATCH v9 00/11] PM / Domains: Support hierarchical CPU arrangement (PSCI/ARM) (a subset) Ulf Hansson
2018-10-03 14:38 ` [PATCH v9 01/11] PM / Domains: Don't treat zero found compatible idle states as an error Ulf Hansson
2018-10-03 14:38 ` [PATCH v9 02/11] PM / Domains: Deal with multiple states but no governor in genpd Ulf Hansson
2018-10-03 14:38 ` [PATCH v9 03/11] PM / Domains: Document flags for genpd Ulf Hansson
2018-10-04 13:48 ` Tony Lindgren
2018-10-04 14:57 ` Ulf Hansson
2018-10-04 16:13 ` Tony Lindgren
2018-10-03 14:38 ` [PATCH v9 04/11] dt: psci: Update DT bindings to support hierarchical PSCI states Ulf Hansson
2018-10-10 15:03 ` Sudeep Holla
2018-10-11 14:44 ` Ulf Hansson
2018-10-11 16:41 ` Sudeep Holla
2018-10-12 9:43 ` Ulf Hansson
2018-10-12 10:13 ` Sudeep Holla
2018-10-12 10:24 ` Ulf Hansson
2018-10-03 14:38 ` [PATCH v9 05/11] of: base: Add of_get_cpu_state_node() to get idle states for a CPU node Ulf Hansson
2018-10-10 15:03 ` Sudeep Holla
2018-10-11 15:05 ` Ulf Hansson
2018-10-11 16:01 ` Sudeep Holla
2018-10-03 14:38 ` [PATCH v9 06/11] cpuidle: dt: Support hierarchical CPU idle states Ulf Hansson
2018-10-10 15:03 ` Sudeep Holla
2018-10-03 14:38 ` [PATCH v9 07/11] drivers: firmware: psci: Move psci to separate directory Ulf Hansson
2018-10-03 14:38 ` [PATCH v9 08/11] MAINTAINERS: Update files for PSCI Ulf Hansson
2018-10-03 14:38 ` [PATCH v9 09/11] drivers: firmware: psci: Split psci_dt_cpu_init_idle() Ulf Hansson
2018-10-03 14:38 ` Ulf Hansson [this message]
2018-10-03 14:38 ` [PATCH v9 11/11] drivers: firmware: psci: Simplify error path of psci_dt_init() Ulf Hansson
2018-10-04 8:39 ` [PATCH v9 00/11] PM / Domains: Support hierarchical CPU arrangement (PSCI/ARM) (a subset) Rafael J. Wysocki
2018-10-04 8:58 ` Ulf Hansson
2018-10-04 9:01 ` Rafael J. Wysocki
2018-10-04 9:32 ` Rafael J. Wysocki
2018-10-04 10:10 ` Ulf Hansson
2018-10-04 15:57 ` Lorenzo Pieralisi
2018-10-04 17:07 ` Rafael J. Wysocki
2018-10-04 17:21 ` Lorenzo Pieralisi
2018-10-04 18:36 ` Ulf Hansson
2018-10-04 18:38 ` Ulf Hansson
2018-10-05 10:47 ` Lorenzo Pieralisi
2018-10-05 11:49 ` Ulf Hansson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181003143824.13059-11-ulf.hansson@linaro.org \
--to=ulf.hansson@linaro.org \
--cc=Lorenzo.Pieralisi@arm.com \
--cc=daniel.lezcano@linaro.org \
--cc=geert+renesas@glider.be \
--cc=ilina@codeaurora.org \
--cc=khilman@kernel.org \
--cc=lina.iyer@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=rjw@rjwysocki.net \
--cc=robh+dt@kernel.org \
--cc=sudeep.holla@arm.com \
--cc=tony@atomide.com \
--cc=vincent.guittot@linaro.org \
--cc=viresh.kumar@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).