linux-kernel - [PATCH v3 2/2] ASoC: ak4642: Simplify probe()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230831204734.104954-3-biju.das.jz@bp.renesas.com>
Date:   Thu, 31 Aug 2023 21:47:34 +0100
From:   Biju Das <biju.das.jz@...renesas.com>
To:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>
Cc:     Biju Das <biju.das.jz@...renesas.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v3 2/2] ASoC: ak4642: Simplify probe()

Simpilfy probe() by replacing of_device_get_match_data() and id lookup for
retrieving match data by i2c_get_match_data().

Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
---
v2->v3:
 * Removing local variable np is handled in patch#1.
v1->v2:
 * Removed forward declaration ak4642_of_match and ak4642_i2c_id.
 * Restored error EINVAL.
 * Used dev_fwnode() and replaced dev->of_node.
 * Removed comma in the terminator entry.
---
 sound/soc/codecs/ak4642.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 901014909c0f..8a40c6b3f4d8 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -628,32 +628,21 @@ static struct clk *ak4642_of_parse_mcko(struct device *dev)
 #define ak4642_of_parse_mcko(d) 0
 #endif
 
-static const struct of_device_id ak4642_of_match[];
-static const struct i2c_device_id ak4642_i2c_id[];
 static int ak4642_i2c_probe(struct i2c_client *i2c)
 {
 	struct device *dev = &i2c->dev;
-	const struct ak4642_drvdata *drvdata = NULL;
+	const struct ak4642_drvdata *drvdata;
 	struct regmap *regmap;
 	struct ak4642_priv *priv;
 	struct clk *mcko = NULL;
 
 	if (dev_fwnode(dev)) {
-		const struct of_device_id *of_id;
-
 		mcko = ak4642_of_parse_mcko(dev);
 		if (IS_ERR(mcko))
 			mcko = NULL;
-
-		of_id = of_match_device(ak4642_of_match, dev);
-		if (of_id)
-			drvdata = of_id->data;
-	} else {
-		const struct i2c_device_id *id =
-			i2c_match_id(ak4642_i2c_id, i2c);
-		drvdata = (const struct ak4642_drvdata *)id->driver_data;
 	}
 
+	drvdata = i2c_get_match_data(i2c);
 	if (!drvdata)
 		return dev_err_probe(dev, -EINVAL, "Unknown device type\n");
 
-- 
2.25.1