linux-kernel - [PATCH] thermal: imx: skip registering legacy cooling on i.MX7

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Message-Id: <20190614074140.15276-1-andrew.smirnov@gmail.com>
Date:   Fri, 14 Jun 2019 00:41:40 -0700
From:   Andrey Smirnov <andrew.smirnov@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Andrey Smirnov <andrew.smirnov@...il.com>,
        Chris Healy <cphealy@...il.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Eduardo Valentin <edubezval@...il.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        NXP Linux Team <linux-imx@....com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] thermal: imx: skip registering legacy cooling on i.MX7

i.MX7 doesn't have a mainline cpufreq driver, so
imx_thermal_register_legacy_cooling() will always return -EPROBE_DEFER
preventing the driver probe from finishing. No-op
imx_thermal_register_legacy_cooling() on i.MX7 to avoid that problem.

Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com>
Cc: Chris Healy <cphealy@...il.com>
Cc: Lucas Stach <l.stach@...gutronix.de>
Cc: Fabio Estevam <festevam@...il.com>
Cc: Zhang Rui <rui.zhang@...el.com>
Cc: Eduardo Valentin <edubezval@...il.com>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: NXP Linux Team <linux-imx@....com>
Cc: linux-pm@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
 drivers/thermal/imx_thermal.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/thermal/imx_thermal.c b/drivers/thermal/imx_thermal.c
index bb6754a5342c..bfc9c6d57916 100644
--- a/drivers/thermal/imx_thermal.c
+++ b/drivers/thermal/imx_thermal.c
@@ -658,6 +658,9 @@ static int imx_thermal_register_legacy_cooling(struct imx_thermal_data *data)
 	struct device_node *np;
 	int ret;
 
+	if (data->socdata->version == TEMPMON_IMX7D)
+		return 0;
+
 	data->policy = cpufreq_cpu_get(0);
 	if (!data->policy) {
 		pr_debug("%s: CPUFreq policy not found\n", __func__);
-- 
2.21.0