linux-kernel - [PATCH] mfd: tps65912: Export OF device ID table as module aliases

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Date:   Mon, 16 Jan 2017 11:41:58 -0300
From:   Javier Martinez Canillas <javier@....samsung.com>
To:     linux-kernel@...r.kernel.org
Cc:     Javier Martinez Canillas <javier@....samsung.com>,
        Lee Jones <lee.jones@...aro.org>
Subject: [PATCH] mfd: tps65912: Export OF device ID table as module aliases

The I2C core always reports a MODALIAS of the form i2c:<foo> even if the
device was registered via OF, this means that exporting the OF device ID
table device aliases in the module is not needed. But in order to change
how the core reports modaliases to user-space, it's better to export it.

Before this patch:

$ modinfo drivers/mfd/tps65912-i2c.ko | grep alias
alias:          i2c:tps65912

After this patch:

$ modinfo drivers/mfd/tps65912-i2c.ko | grep alias
alias:          of:N*T*Cti,tps65912C*
alias:          of:N*T*Cti,tps65912
alias:          i2c:tps65912

Signed-off-by: Javier Martinez Canillas <javier@....samsung.com>
---

 drivers/mfd/tps65912-i2c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/tps65912-i2c.c b/drivers/mfd/tps65912-i2c.c
index 45871403f995..785d19f6f7c9 100644
--- a/drivers/mfd/tps65912-i2c.c
+++ b/drivers/mfd/tps65912-i2c.c
@@ -27,6 +27,7 @@ static const struct of_device_id tps65912_i2c_of_match_table[] = {
 	{ .compatible = "ti,tps65912", },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, tps65912_i2c_of_match_table);
 
 static int tps65912_i2c_probe(struct i2c_client *client,
 			      const struct i2c_device_id *ids)
-- 
2.7.4