linux-kernel - [PATCH] clocksource/OF: remove invalid DT warnings when booting using ACPI

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Message-Id: <1437672666-4121-1-git-send-email-sudeep.holla@arm.com>
Date:	Thu, 23 Jul 2015 18:31:06 +0100
From:	Sudeep Holla <sudeep.holla@....com>
To:	linux-kernel@...r.kernel.org
Cc:	Sudeep Holla <sudeep.holla@....com>, Rob Herring <robh@...nel.org>,
	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH] clocksource/OF: remove invalid DT warnings when booting using ACPI

Since both CONFIG_ACPI and CONFIG_CLKSRC_OF can be enabled on ARM64,
we get this device tree warnings even when booting using ACPI which is
not valid. We can use of_have_populated_dt to check if the device tree
is populated or not and avoid spurious warning.

This patch uses of_have_populated_dt to remove this non legitimate device
tree warning when booting using ACPI tables.

Signed-off-by: Sudeep Holla <sudeep.holla@....com>
Cc: Rob Herring <robh@...nel.org>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
---
 drivers/clocksource/clksrc-of.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c
index 0093a8e49e14..47823a2d7220 100644
--- a/drivers/clocksource/clksrc-of.c
+++ b/drivers/clocksource/clksrc-of.c
@@ -38,6 +38,6 @@ void __init clocksource_of_init(void)
 		init_func(np);
 		clocksources++;
 	}
-	if (!clocksources)
+	if (of_have_populated_dt() && !clocksources)
 		pr_crit("%s: no matching clocksources found\n", __func__);
 }
-- 
1.9.1

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