linux-kernel - [PATCH v2 08/11] PM / devfreq: rk3399_dmc: Replace the deprecated 'devfreq-events' property

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Message-Id: <20191220002430.11995-9-cw00.choi@samsung.com>
Date:   Fri, 20 Dec 2019 09:24:27 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     robh+dt@...nel.org, krzk@...nel.org, heiko@...ech.de,
        leonard.crestez@....com, lukasz.luba@....com
Cc:     mark.rutland@....com, a.swigon@...sung.com,
        m.szyprowski@...sung.com, kgene@...nel.org, cw00.choi@...sung.com,
        myungjoo.ham@...sung.com, kyungmin.park@...sung.com,
        linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org
Subject: [PATCH v2 08/11] PM / devfreq: rk3399_dmc: Replace the deprecated
 'devfreq-events' property

Replace the deprecated 'devfreq-events' property with 'rockchip,dfi-device'
property. But, to guarantee the backward-compatibility, keep the support
of 'devfreq-events' property.

Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 drivers/devfreq/rk3399_dmc.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index e712c8662d2f..2294de13a3dc 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -306,11 +306,14 @@ static int of_get_ddr_timings(struct dram_timing *timing,
 static struct devfreq_event_dev *of_get_edev(struct device_node *np,
 							int index)
 {
-	struct device_node *node = of_parse_phandle(np, "devfreq-events",
+	struct device_node *node = of_parse_phandle(np, "rockchip,dfi-device",
 							index);
 
-	if (!node)
-		return ERR_PTR(-ENODEV);
+	if (!node) {
+		node = of_parse_phandle(np, "devfreq-events", index);
+		if (!node)
+			return ERR_PTR(-ENODEV);
+	}
 	return devfreq_event_get_edev_by_node(node);
 }
 
-- 
2.17.1