linux-kernel - [PATCH] mfd: tps65912: Export OF module alias information

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Date:   Wed,  4 Jan 2017 18:01:06 -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 module alias information

The I2C core always reports module aliases of the form MODALIAS=i2c:<foo>
even when the devices are registered via OF. That's why exporting the OF
device table as aliases isn't strictly needed.

But the I2C core can't be fixed to report proper module aliases until all
drivers have the OF aliases exported as well, otherwise these will break.

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