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From:   Ulf Hansson <ulf.hansson@linaro.org>
To:     Sudeep Holla <sudeep.holla@arm.com>,
        Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        linux-arm-kernel@lists.infradead.org
Cc:     "Rafael J . Wysocki" <rjw@rjwysocki.net>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        "Raju P . L . S . S . S . N" <rplsssn@codeaurora.org>,
        Amit Kucheria <amit.kucheria@linaro.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Stephen Boyd <sboyd@kernel.org>,
        Niklas Cassel <niklas.cassel@linaro.org>,
        Tony Lindgren <tony@atomide.com>,
        Kevin Hilman <khilman@kernel.org>,
        Lina Iyer <ilina@codeaurora.org>,
        Viresh Kumar <viresh.kumar@linaro.org>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Souvik Chakravarty <souvik.chakravarty@arm.com>,
        linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org,
        linux-kernel@vger.kernel.org, Lina Iyer <lina.iyer@linaro.org>,
        Ulf Hansson <ulf.hansson@linaro.org>
Subject: [PATCH 06/18] drivers: firmware: psci: Support hierarchical CPU idle states
Date:   Mon, 13 May 2019 21:22:48 +0200
Message-Id: <20190513192300.653-7-ulf.hansson@linaro.org>
In-Reply-To: <20190513192300.653-1-ulf.hansson@linaro.org>
References: <20190513192300.653-1-ulf.hansson@linaro.org>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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().

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>
---

Changes:
	- None.

---
 drivers/firmware/psci/psci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index 9c2180bcee4c..b11560f7c4b9 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -316,7 +316,7 @@ static int psci_dt_cpu_init_idle(struct cpuidle_driver *drv,
 		return -ENOMEM;
 
 	for (i = 0; i < num_state_nodes; i++) {
-		state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);
+		state_node = of_get_cpu_state_node(cpu_node, i);
 		if (!state_node)
 			break;
 
-- 
2.17.1