linux-kernel - [PATCH v2] iio: dac: ad5758: declare missing of table

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Message-Id: <1556055718-14782-1-git-send-email-dagmcr@gmail.com>
Date:   Tue, 23 Apr 2019 23:41:58 +0200
From:   Daniel Gomez <dagmcr@...il.com>
To:     Stefan Popa <stefan.popa@...log.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio@...r.kernel.org (open list:ANALOG DEVICES INC AD5758 DRIVER),
        linux-kernel@...r.kernel.org (open list)
Cc:     dagmcr@...il.com, javier@...hile0.org,
        linux-iio@...r.kernel.org (open list:ANALOG DEVICES INC AD5758 DRIVER),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2] iio: dac: ad5758: declare missing of table

Add missing <of_device_id> table for SPI driver relying on SPI
device match since compatible is in a DT binding or in a DTS.

Before this patch:
modinfo drivers/iio/dac/ad5758.ko | grep alias
alias:          spi:ad5758

After this patch:
modinfo drivers/iio/dac/ad5758.ko | grep alias
alias:          spi:ad5758
alias:          of:N*T*Cadi,ad5758C*
alias:          of:N*T*Cadi,ad5758

Reported-by: Javier Martinez Canillas <javier@...hile0.org>
Signed-off-by: Daniel Gomez <dagmcr@...il.com>
---
 drivers/iio/dac/ad5758.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/iio/dac/ad5758.c b/drivers/iio/dac/ad5758.c
index 2bdf1b0..e8eaa48 100644
--- a/drivers/iio/dac/ad5758.c
+++ b/drivers/iio/dac/ad5758.c
@@ -11,6 +11,8 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/property.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/spi/spi.h>
 #include <linux/gpio/consumer.h>
 
@@ -904,9 +906,16 @@ static const struct spi_device_id ad5758_id[] = {
 };
 MODULE_DEVICE_TABLE(spi, ad5758_id);
 
+static const struct of_device_id ad5758_of_match[] = {
+        { .compatible = "adi,ad5758" },
+        { },
+};
+MODULE_DEVICE_TABLE(of, ad5758_of_match);
+
 static struct spi_driver ad5758_driver = {
 	.driver = {
 		.name = KBUILD_MODNAME,
+		.of_match_table = ad5758_of_match,
 	},
 	.probe = ad5758_probe,
 	.id_table = ad5758_id,
-- 
2.7.4