2014-07-30 13:45:05

by Pramod Gurav

Subject: [PATCH 1/2] Input: jornada720_ts: Switch to using Managed resources

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

CC: Dmitry Torokhov <[email protected]>
CC: Paul Gortmaker <[email protected]>

Signed-off-by: Pramod Gurav <[email protected]>
---
drivers/input/touchscreen/jornada720_ts.c | 38 ++++++-----------------------
1 file changed, 8 insertions(+), 30 deletions(-)

diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 7324c5c..7422480 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -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

2014-07-30 13:45:31

by Pramod Gurav

Subject: [PATCH 2/2] Input: jornada720_ts: Get rid of space indentation and use tab

CC: Dmitry Torokhov <[email protected]>
CC: Paul Gortmaker <[email protected]>

Signed-off-by: Pramod Gurav <[email protected]>
---
drivers/input/touchscreen/jornada720_ts.c | 25 ++++++++++++-------------
1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 7422480..5d34e3d 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -36,22 +36,21 @@ 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])
--
1.7.9.5