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From: Oleksij Rempel <o.rempel@pengutronix.de>
To: barebox@lists.infradead.org, david@protonic.nl
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Subject: [PATCH v4 4/7] of: of_device_get_match_compatible() helper
Date: Mon, 17 Aug 2020 10:19:26 +0200	[thread overview]
Message-ID: <20200817081929.2329-5-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20200817081929.2329-1-o.rempel@pengutronix.de>

Some times we need to know, against which compatible did the driver
was registered. So, instead of coding it in the driver, add generic
helper for all drivers.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 drivers/of/device.c | 12 ++++++++++++
 include/of_device.h |  6 ++++++
 2 files changed, 18 insertions(+)

diff --git a/drivers/of/device.c b/drivers/of/device.c
index 67a67bd565..b3f522e1fa 100644
--- a/drivers/of/device.c
+++ b/drivers/of/device.c
@@ -31,3 +31,15 @@ const void *of_device_get_match_data(const struct device_d *dev)
 	return match->data;
 }
 EXPORT_SYMBOL(of_device_get_match_data);
+
+const char *of_device_get_match_compatible(const struct device_d *dev)
+{
+	const struct of_device_id *match;
+
+	match = of_match_device(dev->driver->of_compatible, dev);
+	if (!match)
+		return NULL;
+
+	return match->compatible;
+}
+EXPORT_SYMBOL(of_device_get_match_compatible);
diff --git a/include/of_device.h b/include/of_device.h
index 244f5fcbbb..cef6d5b5cc 100644
--- a/include/of_device.h
+++ b/include/of_device.h
@@ -22,6 +22,7 @@ static inline int of_driver_match_device(struct device_d *dev,
 }
 
 extern const void *of_device_get_match_data(const struct device_d *dev);
+extern const char *of_device_get_match_compatible(const struct device_d *dev);
 
 #else /* CONFIG_OFTREE */
 
@@ -36,6 +37,11 @@ static inline const void *of_device_get_match_data(const struct device_d *dev)
 	return NULL;
 }
 
+static inline const char *of_device_get_match_compatible(const struct device_d *dev)
+{
+	return NULL;
+}
+
 static inline const struct of_device_id *__of_match_device(
 		const struct of_device_id *matches, const struct device_d *dev)
 {
-- 
2.28.0


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  parent reply	other threads:[~2020-08-17  8:19 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-17  8:19 [PATCH v4 0/7] prepare Protonic board code for mainline Oleksij Rempel
2020-08-17  8:19 ` [PATCH v4 1/7] of: base: register DT root as device Oleksij Rempel
2020-08-17  8:19 ` [PATCH v4 2/7] gpiolib: add gpio_array_to_id helper to get ID out of GPIO array Oleksij Rempel
2020-08-17  8:19 ` [PATCH v4 3/7] common: console_common: add of_console_get_by_alias() helper Oleksij Rempel
2020-08-17  8:19 ` Oleksij Rempel [this message]
2020-08-17  8:19 ` [PATCH v4 5/7] ARM: protonic-imx6: port Protonic specific board code Oleksij Rempel
2020-08-19  6:27   ` Sascha Hauer
2020-08-19  8:01     ` David Jander
2020-08-17  8:19 ` [PATCH v4 6/7] ARM: dts: unify barebox and barebox, env partitions for all Protonic boards Oleksij Rempel
2020-08-17  8:19 ` [PATCH v4 7/7] ARM: dts: imx6q-prti6q: add pstore/ramoops node Oleksij Rempel

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