From 877f69a81eeee94a195cfbcfcf1dbb1b25f12fc8 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier@osg.samsung.com>
Date: Mon, 17 Oct 2016 16:51:17 -0300
Subject: [PATCH] hwrng: meson - Fix module autoload for OF registration
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.
Export the module alias information using the MODULE_DEVICE_TABLE() macro.
Before this patch:
$ modinfo drivers/char/hw_random/meson-rng.ko | grep alias
alias: platform:meson-rng
After this patch:
$ modinfo drivers/char/hw_random/meson-rng.ko | grep alias
alias: platform:meson-rng
alias: of:N*T*Camlogic,meson-rngC*
alias: of:N*T*Camlogic,meson-rng
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
drivers/char/hw_random/meson-rng.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/char/hw_random/meson-rng.c b/drivers/char/hw_random/meson-rng.c
index 58bef39f72860..51864a509be7a 100644
--- a/drivers/char/hw_random/meson-rng.c
+++ b/drivers/char/hw_random/meson-rng.c
@@ -110,6 +110,7 @@ static const struct of_device_id meson_rng_of_match[] = {
{ .compatible = "amlogic,meson-rng", },
{},
};
+MODULE_DEVICE_TABLE(of, meson_rng_of_match);
static struct platform_driver meson_rng_driver = {
.probe = meson_rng_probe,
--
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