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From: Matt Turner <mattst88@gmail.com>
To: Richard Henderson <richard.henderson@linaro.org>,
	 Magnus Lindholm <linmag7@gmail.com>,
	Guenter Roeck <linux@roeck-us.net>
Cc: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org,
	 linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org,
	 Matt Turner <mattst88@gmail.com>
Subject: [PATCH 4/7] alpha: marvel: register a platform device for the environmental sensors
Date: Sat, 14 Nov 2026 12:39:50 -0500	[thread overview]
Message-ID: <20261114-marvel-env-v1-4-890328e4b7e5@gmail.com> (raw)
In-Reply-To: <20261114-marvel-env-v1-0-890328e4b7e5@gmail.com>

Register a "marvel_env" platform device on Marvel systems booted from
SRM, for the hwmon driver to bind to.

Assisted-by: Claude:claude-opus-5-5
Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 arch/alpha/kernel/core_marvel.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index bd918028b410..d2e1e45cdf1e 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -21,6 +21,7 @@
 #include <linux/module.h>
 #include <linux/memblock.h>
 #include <linux/workqueue.h>
+#include <linux/platform_device.h>
 
 #include <asm/ptrace.h>
 #include <asm/smp.h>
@@ -1142,3 +1143,13 @@ long marvel_cfgtree_partial_update(unsigned long offset)
 	return status;
 }
 EXPORT_SYMBOL_GPL(marvel_cfgtree_partial_update);
+
+static int __init marvel_env_init(void)
+{
+	if (alpha_mv.init_arch != marvel_init_arch || !alpha_using_srm)
+		return 0;
+
+	return PTR_ERR_OR_ZERO(platform_device_register_simple("marvel_env",
+							       -1, NULL, 0));
+}
+device_initcall(marvel_env_init);

-- 
2.56.1


  parent reply	other threads:[~2026-11-14 17:40 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-14 17:39 [PATCH 0/7] alpha: marvel: environmental sensors Matt Turner
2026-11-14 17:39 ` [PATCH 1/7] alpha: marvel: report environmental events without VERBOSE_MCHECK Matt Turner
2026-11-14 17:39 ` [PATCH 2/7] alpha: marvel: fix the environmental subpacket layout Matt Turner
2026-11-14 17:39 ` [PATCH 3/7] alpha: marvel: refresh environmental readings through the console Matt Turner
2026-11-14 17:39 ` Matt Turner [this message]
2026-11-14 17:39 ` [PATCH 5/7] hwmon: Add driver for Marvel AlphaServer environmental sensors Matt Turner
2026-11-14 17:39 ` [PATCH 6/7] alpha: marvel: notify environmental events Matt Turner
2026-11-14 17:39 ` [PATCH 7/7] hwmon: (marvel-env) Notify userspace of " Matt Turner

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