All of lore.kernel.org
 help / color / mirror / Atom feed
From: Pramod Gurav <pramod.gurav@smartplayin.com>
To: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Pramod Gurav <pramod.gurav@smartplayin.com>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Paul Gortmaker <paul.gortmaker@windriver.com>
Subject: [PATCH] Input: jornada720_ts: Switch to using Managed resources
Date: Wed, 30 Jul 2014 17:39:43 +0530	[thread overview]
Message-ID: <1406722183-22678-1-git-send-email-pramod.gurav@smartplayin.com> (raw)

This switches the driver to using managed resources to simplify
error handling and to do away with remove function.

Also fixes some indentations by replacing spaces with tabs.

CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: Paul Gortmaker <paul.gortmaker@windriver.com>

Signed-off-by: Pramod Gurav <pramod.gurav@smartplayin.com>
---
 drivers/input/touchscreen/jornada720_ts.c |   62 ++++++++++-------------------
 1 file changed, 20 insertions(+), 42 deletions(-)

diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 7324c5c..0c23bba 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -37,21 +37,21 @@ struct jornada_ts {
 static void jornada720_ts_collect_data(struct jornada_ts *jornada_ts)
 {
 
-    /* 3 low word X samples */
-    jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
+	/* 3 low word X samples */
+	jornada_ts->x_data[0] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->x_data[1] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->x_data[2] = jornada_ssp_byte(TXDUMMY);
 
-    /* 3 low word Y samples */
-    jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
-    jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
+	/* 3 low word Y samples */
+	jornada_ts->y_data[0] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->y_data[1] = jornada_ssp_byte(TXDUMMY);
+	jornada_ts->y_data[2] = jornada_ssp_byte(TXDUMMY);
 
-    /* combined x samples bits */
-    jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
+	/* combined x samples bits */
+	jornada_ts->x_data[3] = jornada_ssp_byte(TXDUMMY);
 
-    /* combined y samples bits */
-    jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
+	/* combined y samples bits */
+	jornada_ts->y_data[3] = jornada_ssp_byte(TXDUMMY);
 }
 
 static int jornada720_ts_average(int coords[4])
@@ -104,13 +104,10 @@ static int jornada720_ts_probe(struct platform_device *pdev)
 	struct input_dev *input_dev;
 	int error;
 
-	jornada_ts = kzalloc(sizeof(struct jornada_ts), GFP_KERNEL);
-	input_dev = input_allocate_device();
-
-	if (!jornada_ts || !input_dev) {
-		error = -ENOMEM;
-		goto fail1;
-	}
+	jornada_ts = devm_kzalloc(&pdev->dev, sizeof(*jornada_ts), GFP_KERNEL);
+	input_dev = devm_input_allocate_device(&pdev->dev);
+	if (!jornada_ts || !input_dev)
+		return -ENOMEM;
 
 	platform_set_drvdata(pdev, jornada_ts);
 
@@ -126,36 +123,18 @@ static int jornada720_ts_probe(struct platform_device *pdev)
 	input_set_abs_params(input_dev, ABS_X, 270, 3900, 0, 0);
 	input_set_abs_params(input_dev, ABS_Y, 180, 3700, 0, 0);
 
-	error = request_irq(IRQ_GPIO9,
+	error = devm_request_irq(&pdev->dev, IRQ_GPIO9,
 			jornada720_ts_interrupt,
 			IRQF_TRIGGER_RISING,
 			"HP7XX Touchscreen driver", pdev);
 	if (error) {
-		printk(KERN_INFO "HP7XX TS : Unable to acquire irq!\n");
-		goto fail1;
+		dev_err(&pdev->dev, "HP7XX TS : Unable to acquire irq!\n");
+		return error;
 	}
 
 	error = input_register_device(jornada_ts->dev);
 	if (error)
-		goto fail2;
-
-	return 0;
-
- fail2:
-	free_irq(IRQ_GPIO9, pdev);
- fail1:
-	input_free_device(input_dev);
-	kfree(jornada_ts);
-	return error;
-}
-
-static int jornada720_ts_remove(struct platform_device *pdev)
-{
-	struct jornada_ts *jornada_ts = platform_get_drvdata(pdev);
-
-	free_irq(IRQ_GPIO9, pdev);
-	input_unregister_device(jornada_ts->dev);
-	kfree(jornada_ts);
+		return error;
 
 	return 0;
 }
@@ -165,7 +144,6 @@ MODULE_ALIAS("platform:jornada_ts");
 
 static struct platform_driver jornada720_ts_driver = {
 	.probe		= jornada720_ts_probe,
-	.remove		= jornada720_ts_remove,
 	.driver		= {
 		.name	= "jornada_ts",
 		.owner	= THIS_MODULE,
-- 
1.7.9.5


             reply	other threads:[~2014-07-30 12:16 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-30 12:09 Pramod Gurav [this message]
2014-07-30 13:18 ` [PATCH] Input: jornada720_ts: Switch to using Managed resources Paul Gortmaker
2014-07-30 13:18   ` Paul Gortmaker
2014-07-30 13:28   ` Pramod Gurav

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=1406722183-22678-1-git-send-email-pramod.gurav@smartplayin.com \
    --to=pramod.gurav@smartplayin.com \
    --cc=dmitry.torokhov@gmail.com \
    --cc=linux-input@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=paul.gortmaker@windriver.com \
    /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.