All of lore.kernel.org
 help / color / mirror / Atom feed
From: Biju Das <biju.das.jz@bp.renesas.com>
To: cip-dev@lists.cip-project.org,
	Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>,
	Pavel Machek <pavel@denx.de>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Subject: [PATCH 5.10.y-cip 04/15] i2c: Add i2c_get_match_data()
Date: Mon, 11 Sep 2023 15:46:51 +0100	[thread overview]
Message-ID: <20230911144702.948246-5-biju.das.jz@bp.renesas.com> (raw)
In-Reply-To: <20230911144702.948246-1-biju.das.jz@bp.renesas.com>

commit 564d73c4d9201526bd976b9379d2aaf1a7133e84 upstream.

Add i2c_get_match_data() to get match data for I2C, ACPI and
DT-based matching, so that we can optimize the driver code.

Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
[wsa: simplified var initialization]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/i2c/i2c-core-base.c | 19 +++++++++++++++++++
 include/linux/i2c.h         |  2 ++
 2 files changed, 21 insertions(+)

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 34fecf97a355..09f9193eee43 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -92,6 +92,25 @@ const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
 }
 EXPORT_SYMBOL_GPL(i2c_match_id);
 
+const void *i2c_get_match_data(const struct i2c_client *client)
+{
+	struct i2c_driver *driver = to_i2c_driver(client->dev.driver);
+	const struct i2c_device_id *match;
+	const void *data;
+
+	data = device_get_match_data(&client->dev);
+	if (!data) {
+		match = i2c_match_id(driver->id_table, client);
+		if (!match)
+			return NULL;
+
+		data = (const void *)match->driver_data;
+	}
+
+	return data;
+}
+EXPORT_SYMBOL(i2c_get_match_data);
+
 static int i2c_device_match(struct device *dev, struct device_driver *drv)
 {
 	struct i2c_client	*client = i2c_verify_client(dev);
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index a670ae129f4b..7523ebad9151 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -342,6 +342,8 @@ struct i2c_adapter *i2c_verify_adapter(struct device *dev);
 const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
 					 const struct i2c_client *client);
 
+const void *i2c_get_match_data(const struct i2c_client *client);
+
 static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
 {
 	struct device * const dev = kobj_to_dev(kobj);
-- 
2.25.1



  parent reply	other threads:[~2023-09-11 14:47 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-11 14:46 [PATCH 5.10.y-cip 00/15] Enable Renesas PMIC RAA215300 and RTC builtin support Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 01/15] rtc: isl1208: Fix clock tick timed out message Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 02/15] rtc: destroy mutex when releasing the device Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 03/15] clk: fixed-rate: add devm_clk_hw_register_fixed_rate Biju Das
2023-09-11 14:46 ` Biju Das [this message]
2023-09-11 14:46 ` [PATCH 5.10.y-cip 05/15] regulator: raa215300: Update help description Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 06/15] regulator: raa215300: Change the scope of the variables {clkin_name, xin_name} Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 07/15] regulator: raa215300: Fix resource leak in case of error Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 08/15] regulator: raa215300: Add const definition Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 09/15] regulator: raa215300: Change rate from 32000->32768 Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 10/15] regulator: raa215300: Add missing blank space Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 11/15] rtc: isl1208: Simplify probe() Biju Das
2023-09-11 14:46 ` [PATCH 5.10.y-cip 12/15] rtc: isl1208: Fix incorrect logic in isl1208_set_xtoscb() Biju Das
2023-09-11 14:47 ` [PATCH 5.10.y-cip 13/15] arm64: defconfig: Enable PMIC RAA215300 and RTC ISL 1208 configs Biju Das
2023-09-11 14:47 ` [PATCH 5.10.y-cip 14/15] arm64: dts: renesas: rzg2l-smarc-som: Enable PMIC and built-in RTC Biju Das
2023-09-11 14:47 ` [PATCH 5.10.y-cip 15/15] arm64: dts: renesas: rzg2lc-smarc-som: " Biju Das
2023-09-12 21:09 ` [PATCH 5.10.y-cip 00/15] Enable Renesas PMIC RAA215300 and RTC builtin support Pavel Machek
2023-09-13  2:25   ` nobuhiro1.iwamatsu
2023-09-13 13:55     ` Pavel Machek

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=20230911144702.948246-5-biju.das.jz@bp.renesas.com \
    --to=biju.das.jz@bp.renesas.com \
    --cc=cip-dev@lists.cip-project.org \
    --cc=claudiu.beznea.uj@bp.renesas.com \
    --cc=nobuhiro1.iwamatsu@toshiba.co.jp \
    --cc=pavel@denx.de \
    /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
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.