mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Oleksij Rempel <o.rempel@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Oleksij Rempel <o.rempel@pengutronix.de>
Subject: [PATCH v1 3/5] of: add generic of_fixup_machine_compatible()
Date: Wed, 27 Apr 2022 09:37:22 +0200	[thread overview]
Message-ID: <20220427073724.3126601-3-o.rempel@pengutronix.de> (raw)
In-Reply-To: <20220427073724.3126601-1-o.rempel@pengutronix.de>

Add generic function to extend/fixup machine compatible.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
 common/oftree.c | 30 ++++++++++++++++++++++++++++++
 include/of.h    |  6 ++++++
 2 files changed, 36 insertions(+)

diff --git a/common/oftree.c b/common/oftree.c
index c6d75055cc..0a66882946 100644
--- a/common/oftree.c
+++ b/common/oftree.c
@@ -487,3 +487,33 @@ int of_autoenable_i2c_by_component(char *path)
 
 	return ret;
 }
+
+int of_fixup_machine_compatible(struct device_node *root, const char *compat)
+{
+	int cclen = 0, clen = strlen(compat) + 1;
+	const char *curcompat;
+	void *buf;
+
+	if (!root) {
+		root = of_get_root_node();
+		if (!root)
+			return -ENODEV;
+	}
+
+	curcompat = of_get_property(root, "compatible", &cclen);
+
+	buf = xzalloc(cclen + clen);
+
+	memcpy(buf, compat, clen);
+	memcpy(buf + clen, curcompat, cclen);
+
+	/*
+	 * Prepend the compatible from board entry to the machine compatible.
+	 * Used to match bootspec entries against it.
+	 */
+	of_set_property(root, "compatible", buf, cclen + clen, true);
+
+	free(buf);
+
+	return 0;
+}
diff --git a/include/of.h b/include/of.h
index cf9950e9b3..9f514c5ec2 100644
--- a/include/of.h
+++ b/include/of.h
@@ -316,6 +316,7 @@ struct device_node *of_find_node_by_path_or_alias(struct device_node *root,
 		const char *str);
 int of_autoenable_device_by_path(char *path);
 int of_autoenable_i2c_by_component(char *path);
+int of_fixup_machine_compatible(struct device_node *root, const char *compat);
 #else
 static inline bool of_node_name_eq(const struct device_node *np, const char *name)
 {
@@ -834,6 +835,11 @@ static inline int of_autoenable_i2c_by_component(char *path)
 	return -ENODEV;
 }
 
+static int of_fixup_machine_compatible(struct device_node *root,
+				       const char *compat)
+{
+	return -ENODEV;
+}
 
 #endif
 
-- 
2.30.2


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox


  parent reply	other threads:[~2022-04-27  7:38 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-27  7:37 [PATCH v1 1/5] common: add $global.serial_number with device tree fixup Oleksij Rempel
2022-04-27  7:37 ` [PATCH v1 2/5] ARM: boards: protonic-imx6: make use of barebox_set_serial_number() Oleksij Rempel
2022-04-27  7:37 ` Oleksij Rempel [this message]
2022-04-27  7:53   ` [PATCH v1 3/5] of: add generic of_fixup_machine_compatible() Ahmad Fatoum
2022-04-27  7:37 ` [PATCH v1 4/5] ARM: boards: skov-imx6: make use of of_fixup_machine_compatible() Oleksij Rempel
2022-04-27  7:37 ` [PATCH v1 5/5] ARM: boards: protonic-imx6: add HW revision specific machine compatible Oleksij Rempel
2022-04-27  8:00   ` Ahmad Fatoum

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20220427073724.3126601-3-o.rempel@pengutronix.de \
    --to=o.rempel@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    --subject='Re: [PATCH v1 3/5] of: add generic of_fixup_machine_compatible()' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox