diff options
author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/staging/iio/adc/ad7606_par.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/staging/iio/adc/ad7606_par.c')
-rw-r--r-- | kernel/drivers/staging/iio/adc/ad7606_par.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/kernel/drivers/staging/iio/adc/ad7606_par.c b/kernel/drivers/staging/iio/adc/ad7606_par.c new file mode 100644 index 000000000..9e24b4d44 --- /dev/null +++ b/kernel/drivers/staging/iio/adc/ad7606_par.c @@ -0,0 +1,152 @@ +/* + * AD7606 Parallel Interface ADC driver + * + * Copyright 2011 Analog Devices Inc. + * + * Licensed under the GPL-2. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/types.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <linux/iio/iio.h> +#include "ad7606.h" + +static int ad7606_par16_read_block(struct device *dev, + int count, void *buf) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct ad7606_state *st = iio_priv(indio_dev); + + insw((unsigned long) st->base_address, buf, count); + + return 0; +} + +static const struct ad7606_bus_ops ad7606_par16_bops = { + .read_block = ad7606_par16_read_block, +}; + +static int ad7606_par8_read_block(struct device *dev, + int count, void *buf) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct ad7606_state *st = iio_priv(indio_dev); + + insb((unsigned long) st->base_address, buf, count * 2); + + return 0; +} + +static const struct ad7606_bus_ops ad7606_par8_bops = { + .read_block = ad7606_par8_read_block, +}; + +static int ad7606_par_probe(struct platform_device *pdev) +{ + struct resource *res; + struct iio_dev *indio_dev; + void __iomem *addr; + resource_size_t remap_size; + int irq; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + dev_err(&pdev->dev, "no irq\n"); + return -ENODEV; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + addr = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(addr)) + return PTR_ERR(addr); + + remap_size = resource_size(res); + + indio_dev = ad7606_probe(&pdev->dev, irq, addr, + platform_get_device_id(pdev)->driver_data, + remap_size > 1 ? &ad7606_par16_bops : + &ad7606_par8_bops); + + if (IS_ERR(indio_dev)) + return PTR_ERR(indio_dev); + + platform_set_drvdata(pdev, indio_dev); + + return 0; +} + +static int ad7606_par_remove(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + + ad7606_remove(indio_dev, platform_get_irq(pdev, 0)); + + return 0; +} + +#ifdef CONFIG_PM +static int ad7606_par_suspend(struct device *dev) +{ + struct iio_dev *indio_dev = dev_get_drvdata(dev); + + ad7606_suspend(indio_dev); + + return 0; +} + +static int ad7606_par_resume(struct device *dev) +{ + struct iio_dev *indio_dev = dev_get_drvdata(dev); + + ad7606_resume(indio_dev); + + return 0; +} + +static const struct dev_pm_ops ad7606_pm_ops = { + .suspend = ad7606_par_suspend, + .resume = ad7606_par_resume, +}; +#define AD7606_PAR_PM_OPS (&ad7606_pm_ops) + +#else +#define AD7606_PAR_PM_OPS NULL +#endif /* CONFIG_PM */ + +static struct platform_device_id ad7606_driver_ids[] = { + { + .name = "ad7606-8", + .driver_data = ID_AD7606_8, + }, { + .name = "ad7606-6", + .driver_data = ID_AD7606_6, + }, { + .name = "ad7606-4", + .driver_data = ID_AD7606_4, + }, + { } +}; + +MODULE_DEVICE_TABLE(platform, ad7606_driver_ids); + +static struct platform_driver ad7606_driver = { + .probe = ad7606_par_probe, + .remove = ad7606_par_remove, + .id_table = ad7606_driver_ids, + .driver = { + .name = "ad7606", + .pm = AD7606_PAR_PM_OPS, + }, +}; + +module_platform_driver(ad7606_driver); + +MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); +MODULE_DESCRIPTION("Analog Devices AD7606 ADC"); +MODULE_LICENSE("GPL v2"); |