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Date: Wed, 30 Jul 2014 18:58:08 +0530
From: Pramod Gurav <pramod.gurav.etc@...il.com>
To: Paul Gortmaker <paul.gortmaker@...driver.com>
Cc: Pramod Gurav <pramod.gurav@...rtplayin.com>,
linux-input@...r.kernel.org,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>
Subject: Re: [PATCH] Input: jornada720_ts: Switch to using Managed resources
On Wed, Jul 30, 2014 at 6:48 PM, Paul Gortmaker
<paul.gortmaker@...driver.com> wrote:
> On 14-07-30 08:09 AM, Pramod Gurav wrote:
>> 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@...il.com>
>> CC: Paul Gortmaker <paul.gortmaker@...driver.com>
>>
>> Signed-off-by: Pramod Gurav <pramod.gurav@...rtplayin.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);
>
> Please don't mix pure whitespace changes with technical changes.
> While I can't fault you for wanting to get rid of the 4 space
> tabs, it makes review more complicated when they are mixed in
> a single commit.
Thanks for highlighting that. Will send two patches then.
>
> P.
> --
>
>>
>> - /* 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,
>>
> --
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--
Thanks and Regards
Pramod
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