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mfd/gpio: add a GPIO interface to the UCB1400 MFD chip driver via gpiolib

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Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Brownell <david-b@pacbell.net>
Cc: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Marek Vasut
2009-09-22 16:46:35 -07:00
committed by Linus Torvalds
parent 1e5db00687
commit 4cf8e53b3b
5 changed files with 184 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/mfd/ucb1400_core.c
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@@ -48,9 +48,11 @@ static int ucb1400_core_probe(struct device *dev)
int err;
struct ucb1400 *ucb;
struct ucb1400_ts ucb_ts;
struct ucb1400_gpio ucb_gpio;
struct snd_ac97 *ac97;
memset(&ucb_ts, 0, sizeof(ucb_ts));
memset(&ucb_gpio, 0, sizeof(ucb_gpio));
ucb = kzalloc(sizeof(struct ucb1400), GFP_KERNEL);
if (!ucb) {
@@ -68,25 +70,44 @@ static int ucb1400_core_probe(struct device *dev)
goto err0;
}
/* GPIO */
ucb_gpio.ac97 = ac97;
ucb->ucb1400_gpio = platform_device_alloc("ucb1400_gpio", -1);
if (!ucb->ucb1400_gpio) {
err = -ENOMEM;
goto err0;
}
err = platform_device_add_data(ucb->ucb1400_gpio, &ucb_gpio,
sizeof(ucb_gpio));
if (err)
goto err1;
err = platform_device_add(ucb->ucb1400_gpio);
if (err)
goto err1;
/* TOUCHSCREEN */
ucb_ts.ac97 = ac97;
ucb->ucb1400_ts = platform_device_alloc("ucb1400_ts", -1);
if (!ucb->ucb1400_ts) {
err = -ENOMEM;
goto err0;
goto err2;
}
err = platform_device_add_data(ucb->ucb1400_ts, &ucb_ts,
sizeof(ucb_ts));
if (err)
goto err1;
goto err3;
err = platform_device_add(ucb->ucb1400_ts);
if (err)
goto err1;
goto err3;
return 0;
err1:
err3:
platform_device_put(ucb->ucb1400_ts);
err2:
platform_device_unregister(ucb->ucb1400_gpio);
err1:
platform_device_put(ucb->ucb1400_gpio);
err0:
kfree(ucb);
err:
@@ -98,6 +119,8 @@ static int ucb1400_core_remove(struct device *dev)
struct ucb1400 *ucb = dev_get_drvdata(dev);
platform_device_unregister(ucb->ucb1400_ts);
platform_device_unregister(ucb->ucb1400_gpio);
kfree(ucb);
return 0;
}