linux-kernel - [PATCH V2 1/3] reset: imx7: Support module build

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Date:   Mon, 29 Jun 2020 23:05:27 +0800
From:   Anson Huang <Anson.Huang@....com>
To:     catalin.marinas@....com, will@...nel.org,
        lorenzo.pieralisi@....com, robh@...nel.org, bhelgaas@...gle.com,
        p.zabel@...gutronix.de, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        bjorn.andersson@...aro.org, leoyang.li@....com, vkoul@...nel.org,
        geert+renesas@...der.be, olof@...om.net, treding@...dia.com,
        gustavo.pimentel@...opsys.com, amurray@...goodpenguin.co.uk,
        vidyas@...dia.com, xiaowei.bao@....com, jonnyc@...zon.com,
        hayashi.kunihiko@...ionext.com, eswara.kota@...ux.intel.com,
        krzk@...nel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Cc:     Linux-imx@....com
Subject: [PATCH V2 1/3] reset: imx7: Support module build

Add module device table, author, description and license to support
module build, and CONFIG_RESET_IMX7 is changed to default 'y' ONLY
for i.MX7D, other platforms need to select it in defconfig.

Signed-off-by: Anson Huang <Anson.Huang@....com>
---
Changes since V1:
	- make it default 'y' for SOC_IMX7D;
	- add module author, description;
	- use device_initcall instead of builtin_platform_driver() to support
	  module unload.
---
 drivers/reset/Kconfig      |  5 +++--
 drivers/reset/reset-imx7.c | 14 ++++++++++++--
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index d9efbfd..19f9773 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -65,9 +65,10 @@ config RESET_HSDK
 	  This enables the reset controller driver for HSDK board.
 
 config RESET_IMX7
-	bool "i.MX7/8 Reset Driver" if COMPILE_TEST
+	tristate "i.MX7/8 Reset Driver"
 	depends on HAS_IOMEM
-	default SOC_IMX7D || (ARM64 && ARCH_MXC)
+	depends on SOC_IMX7D || (ARM64 && ARCH_MXC) || COMPILE_TEST
+	default y if SOC_IMX7D
 	select MFD_SYSCON
 	help
 	  This enables the reset controller driver for i.MX7 SoCs.
diff --git a/drivers/reset/reset-imx7.c b/drivers/reset/reset-imx7.c
index d170fe6..c710f789 100644
--- a/drivers/reset/reset-imx7.c
+++ b/drivers/reset/reset-imx7.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/mfd/syscon.h>
-#include <linux/mod_devicetable.h>
+#include <linux/module.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/reset-controller.h>
@@ -386,6 +386,7 @@ static const struct of_device_id imx7_reset_dt_ids[] = {
 	{ .compatible = "fsl,imx8mp-src", .data = &variant_imx8mp },
 	{ /* sentinel */ },
 };
+MODULE_DEVICE_TABLE(of, imx7_reset_dt_ids);
 
 static struct platform_driver imx7_reset_driver = {
 	.probe	= imx7_reset_probe,
@@ -394,4 +395,13 @@ static struct platform_driver imx7_reset_driver = {
 		.of_match_table	= imx7_reset_dt_ids,
 	},
 };
-builtin_platform_driver(imx7_reset_driver);
+
+static int __init imx7_reset_init(void)
+{
+	return platform_driver_register(&imx7_reset_driver);
+}
+device_initcall(imx7_reset_init);
+
+MODULE_AUTHOR("Andrey Smirnov <andrew.smirnov@...il.com>");
+MODULE_DESCRIPTION("NXP i.MX7 reset driver");
+MODULE_LICENSE("GPL v2");
-- 
2.7.4