All of lore.kernel.org
 help / color / mirror / Atom feed
From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Robin van der Gracht <robin@protonic.nl>,
	Miguel Ojeda <ojeda@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	Paul Burton <paulburton@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Pavel Machek <pavel@ucw.cz>, Marek Behun <marek.behun@nic.cz>,
	devicetree@vger.kernel.org, linux-leds@vger.kernel.org,
	linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
	Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH v5 13/19] auxdisplay: ht16k33: Add helper variable dev
Date: Wed, 11 Aug 2021 11:57:53 +0200	[thread overview]
Message-ID: <20210811095759.1281480-14-geert@linux-m68k.org> (raw)
In-Reply-To: <20210811095759.1281480-1-geert@linux-m68k.org>

This driver has many users of "client->dev".  Add shorthands to simplify
the code.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Robin van der Gracht <robin@protonic.nl>
---
v5:
  - No changes,

v4:
  - No changes,

v3:
  - No changes,

v2:
  - Add Acked-by,
  - Rebased.
---
 drivers/auxdisplay/ht16k33.c | 43 ++++++++++++++++++------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index 8c1689b77db95676..75d326a823543898 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -316,7 +316,8 @@ static void ht16k33_keypad_stop(struct input_dev *dev)
 static int ht16k33_keypad_probe(struct i2c_client *client,
 				struct ht16k33_keypad *keypad)
 {
-	struct device_node *node = client->dev.of_node;
+	struct device *dev = &client->dev;
+	struct device_node *node = dev->of_node;
 	u32 rows = HT16K33_MATRIX_KEYPAD_MAX_ROWS;
 	u32 cols = HT16K33_MATRIX_KEYPAD_MAX_COLS;
 	int err;
@@ -324,7 +325,7 @@ static int ht16k33_keypad_probe(struct i2c_client *client,
 	keypad->client = client;
 	init_waitqueue_head(&keypad->wait);
 
-	keypad->dev = devm_input_allocate_device(&client->dev);
+	keypad->dev = devm_input_allocate_device(dev);
 	if (!keypad->dev)
 		return -ENOMEM;
 
@@ -341,17 +342,17 @@ static int ht16k33_keypad_probe(struct i2c_client *client,
 	err = of_property_read_u32(node, "debounce-delay-ms",
 				   &keypad->debounce_ms);
 	if (err) {
-		dev_err(&client->dev, "key debounce delay not specified\n");
+		dev_err(dev, "key debounce delay not specified\n");
 		return err;
 	}
 
-	err = matrix_keypad_parse_of_params(&client->dev, &rows, &cols);
+	err = matrix_keypad_parse_of_params(dev, &rows, &cols);
 	if (err)
 		return err;
 	if (rows > HT16K33_MATRIX_KEYPAD_MAX_ROWS ||
 	    cols > HT16K33_MATRIX_KEYPAD_MAX_COLS) {
-		dev_err(&client->dev, "%u rows or %u cols out of range in DT\n",
-			rows, cols);
+		dev_err(dev, "%u rows or %u cols out of range in DT\n", rows,
+			cols);
 		return -ERANGE;
 	}
 
@@ -362,17 +363,17 @@ static int ht16k33_keypad_probe(struct i2c_client *client,
 	err = matrix_keypad_build_keymap(NULL, NULL, rows, cols, NULL,
 					 keypad->dev);
 	if (err) {
-		dev_err(&client->dev, "failed to build keymap\n");
+		dev_err(dev, "failed to build keymap\n");
 		return err;
 	}
 
-	err = devm_request_threaded_irq(&client->dev, client->irq,
-					NULL, ht16k33_keypad_irq_thread,
+	err = devm_request_threaded_irq(dev, client->irq, NULL,
+					ht16k33_keypad_irq_thread,
 					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
 					DRIVER_NAME, keypad);
 	if (err) {
-		dev_err(&client->dev, "irq request failed %d, error %d\n",
-			client->irq, err);
+		dev_err(dev, "irq request failed %d, error %d\n", client->irq,
+			err);
 		return err;
 	}
 
@@ -389,14 +390,15 @@ static int ht16k33_probe(struct i2c_client *client)
 	struct backlight_properties bl_props;
 	struct ht16k33_priv *priv;
 	struct ht16k33_fbdev *fbdev;
-	struct device_node *node = client->dev.of_node;
+	struct device *dev = &client->dev;
+	struct device_node *node = dev->of_node;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		dev_err(&client->dev, "i2c_check_functionality error\n");
+		dev_err(dev, "i2c_check_functionality error\n");
 		return -EIO;
 	}
 
-	priv = devm_kzalloc(&client->dev, sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
@@ -413,11 +415,10 @@ static int ht16k33_probe(struct i2c_client *client)
 	bl_props.type = BACKLIGHT_RAW;
 	bl_props.max_brightness = MAX_BRIGHTNESS;
 
-	bl = devm_backlight_device_register(&client->dev, DRIVER_NAME"-bl",
-					    &client->dev, priv,
+	bl = devm_backlight_device_register(dev, DRIVER_NAME"-bl", dev, priv,
 					    &ht16k33_bl_ops, &bl_props);
 	if (IS_ERR(bl)) {
-		dev_err(&client->dev, "failed to register backlight\n");
+		dev_err(dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
 	}
 
@@ -426,7 +427,7 @@ static int ht16k33_probe(struct i2c_client *client)
 	if (err) {
 		dft_brightness = MAX_BRIGHTNESS;
 	} else if (dft_brightness > MAX_BRIGHTNESS) {
-		dev_warn(&client->dev,
+		dev_warn(dev,
 			 "invalid default brightness level: %u, using %u\n",
 			 dft_brightness, MAX_BRIGHTNESS);
 		dft_brightness = MAX_BRIGHTNESS;
@@ -441,13 +442,13 @@ static int ht16k33_probe(struct i2c_client *client)
 	if (!fbdev->buffer)
 		return -ENOMEM;
 
-	fbdev->cache = devm_kmalloc(&client->dev, HT16K33_FB_SIZE, GFP_KERNEL);
+	fbdev->cache = devm_kmalloc(dev, HT16K33_FB_SIZE, GFP_KERNEL);
 	if (!fbdev->cache) {
 		err = -ENOMEM;
 		goto err_fbdev_buffer;
 	}
 
-	fbdev->info = framebuffer_alloc(0, &client->dev);
+	fbdev->info = framebuffer_alloc(0, dev);
 	if (!fbdev->info) {
 		err = -ENOMEM;
 		goto err_fbdev_buffer;
@@ -456,7 +457,7 @@ static int ht16k33_probe(struct i2c_client *client)
 	err = of_property_read_u32(node, "refresh-rate-hz",
 		&fbdev->refresh_rate);
 	if (err) {
-		dev_err(&client->dev, "refresh rate not specified\n");
+		dev_err(dev, "refresh rate not specified\n");
 		goto err_fbdev_info;
 	}
 	fb_bl_default_curve(fbdev->info, 0, MIN_BRIGHTNESS, MAX_BRIGHTNESS);
-- 
2.25.1


  parent reply	other threads:[~2021-08-11  9:58 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-11  9:57 [PATCH v5 00/19] auxdisplay: ht16k33: Add character display support Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 01/19] uapi: Add <linux/map_to_14segment.h> Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 02/19] dt-bindings: auxdisplay: ht16k33: Document Adafruit segment displays Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 03/19] auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 04/19] auxdisplay: img-ascii-lcd: Add helper variable dev Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 05/19] auxdisplay: img-ascii-lcd: Convert device attribute to sysfs_emit() Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 06/19] auxdisplay: Extract character line display core support Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 07/19] auxdisplay: linedisp: Use kmemdup_nul() helper Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 08/19] auxdisplay: linedisp: Add support for changing scroll rate Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 09/19] auxdisplay: ht16k33: Connect backlight to fbdev Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 10/19] auxdisplay: ht16k33: Use HT16K33_FB_SIZE in ht16k33_initialize() Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 11/19] auxdisplay: ht16k33: Remove unneeded error check in keypad probe() Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 12/19] auxdisplay: ht16k33: Convert to simple i2c probe function Geert Uytterhoeven
2021-08-11  9:57 ` Geert Uytterhoeven [this message]
2021-08-11  9:57 ` [PATCH v5 14/19] auxdisplay: ht16k33: Move delayed work Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 15/19] auxdisplay: ht16k33: Extract ht16k33_brightness_set() Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 16/19] auxdisplay: ht16k33: Extract frame buffer probing Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 17/19] auxdisplay: ht16k33: Add support for segment displays Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 18/19] dt-bindings: auxdisplay: ht16k33: Document LED subnode Geert Uytterhoeven
2021-08-11  9:57 ` [PATCH v5 19/19] auxdisplay: ht16k33: Add LED support Geert Uytterhoeven
2021-08-11 10:47   ` Marek Behún
2021-08-11 11:29     ` Geert Uytterhoeven
     [not found]       ` <CAHp75VeNyHUmcU7GPnP8woRcDErDNQ5M3FHQGpLnhUoL5qTnLQ@mail.gmail.com>
2021-08-13 12:52         ` Geert Uytterhoeven
2021-08-13 13:59           ` Andy Shevchenko

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=20210811095759.1281480-14-geert@linux-m68k.org \
    --to=geert@linux-m68k.org \
    --cc=devicetree@vger.kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-leds@vger.kernel.org \
    --cc=linux-mips@vger.kernel.org \
    --cc=marek.behun@nic.cz \
    --cc=ojeda@kernel.org \
    --cc=paulburton@kernel.org \
    --cc=pavel@ucw.cz \
    --cc=robh+dt@kernel.org \
    --cc=robin@protonic.nl \
    /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.