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Date: Tue, 2 Feb 2021 14:38:47 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Nicolas Ferre <nicolas.ferre@...rochip.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Ludovic Desroches <ludovic.desroches@...rochip.com>,
Sudeep Holla <sudeep.holla@....com>,
Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 4.14 06/30] drivers: soc: atmel: Avoid calling at91_soc_init on non AT91 SoCs
From: Sudeep Holla <sudeep.holla@....com>
commit caab13b4960416b9fee83169a758eb0f31e65109 upstream.
Since at91_soc_init is called unconditionally from atmel_soc_device_init,
we get the following warning on all non AT91 SoCs:
" AT91: Could not find identification node"
Fix the same by filtering with allowed AT91 SoC list.
Cc: Nicolas Ferre <nicolas.ferre@...rochip.com>
Cc: Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc: Ludovic Desroches <ludovic.desroches@...rochip.com>
Cc: stable@...r.kernel.org #4.12+
Signed-off-by: Sudeep Holla <sudeep.holla@....com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
Link: https://lore.kernel.org/r/20201211135846.1334322-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/soc/atmel/soc.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/drivers/soc/atmel/soc.c
+++ b/drivers/soc/atmel/soc.c
@@ -246,8 +246,20 @@ struct soc_device * __init at91_soc_init
return soc_dev;
}
+static const struct of_device_id at91_soc_allowed_list[] __initconst = {
+ { .compatible = "atmel,at91rm9200", },
+ { .compatible = "atmel,at91sam9", },
+ { .compatible = "atmel,sama5", },
+ { .compatible = "atmel,samv7", }
+};
+
static int __init atmel_soc_device_init(void)
{
+ struct device_node *np = of_find_node_by_path("/");
+
+ if (!of_match_node(at91_soc_allowed_list, np))
+ return 0;
+
at91_soc_init(socs);
return 0;
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