linux-kernel - [PATCH] reset: meson: make it possible to build as a module

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Message-Id: <20201013133943.412119-1-narmstrong@baylibre.com>
Date:   Tue, 13 Oct 2020 15:39:43 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     p.zabel@...gutronix.de
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Neil Armstrong <narmstrong@...libre.com>
Subject: [PATCH] reset: meson: make it possible to build as a module

In order to reduce the kernel Image size on multi-platform distributions,
make it possible to build the reset controller driver as a module.

This partially reverts 8290924e ("reset: meson: make it explicitly non-modular")

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 drivers/reset/Kconfig       | 4 ++--
 drivers/reset/reset-meson.c | 7 ++++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index d9efbfd29646..ab315617565f 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -94,8 +94,8 @@ config RESET_LPC18XX
 	  This enables the reset controller driver for NXP LPC18xx/43xx SoCs.
 
 config RESET_MESON
-	bool "Meson Reset Driver" if COMPILE_TEST
-	default ARCH_MESON
+	tristate "Meson Reset Driver"
+	default ARCH_MESON || COMPILE_TEST
 	help
 	  This enables the reset driver for Amlogic Meson SoCs.
 
diff --git a/drivers/reset/reset-meson.c b/drivers/reset/reset-meson.c
index 94d7ba88d7d2..434d5c0f877e 100644
--- a/drivers/reset/reset-meson.c
+++ b/drivers/reset/reset-meson.c
@@ -9,6 +9,7 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/of.h>
+#include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/reset-controller.h>
 #include <linux/slab.h>
@@ -142,4 +143,8 @@ static struct platform_driver meson_reset_driver = {
 		.of_match_table	= meson_reset_dt_ids,
 	},
 };
-builtin_platform_driver(meson_reset_driver);
+module_platform_driver(meson_reset_driver);
+
+MODULE_DESCRIPTION("Amlogic Meson Reset Controller driver");
+MODULE_AUTHOR("Neil Armstrong <narmstrong@...libre.com>");
+MODULE_LICENSE("Dual BSD/GPL");
-- 
2.25.1