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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel…
…/git/vapier/blackfin * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin: (88 commits) Blackfin: Convert BUG() to use unreachable() Blackfin: define __NR_recvmmsg Blackfin: drop duplicate sched_clock Blackfin: NOMPU: skip DMA ICPLB hole when it is redundant Blackfin: MPU: add missing __init markings Blackfin: add support for TIF_NOTIFY_RESUME Blackfin: kgdb_test: clean up code a bit Blackfin: convert kgdbtest to proc_fops Blackfin: convert cyc2ns() to clocksource_cyc2ns() Blackfin: ip0x: pull in asm/portmux.h for P_xxx defines Blackfin: drop unused ax88180 resources Blackfin: bf537-stamp: add ADF702x network driver resources Blackfin: bf537-stamp: add CAN resources Blackfin: bf537-stamp: add AD5258 i2c address Blackfin: bf537-stamp: add adau1761 i2c address Blackfin: bf537-stamp: add adau1371 i2c address Blackfin: bf537-stamp: add ADP8870 resources Blackfin: bf537-stamp: kill AD714x board-specific Kconfigs Blackfin: bf537-stamp: update ADP5520 resources Blackfin: bf537-stamp: add ADXL346 orientation sensing support ...
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| obj-m := gptimers-example.o | ||
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| all: modules | ||
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| modules clean: | ||
| $(MAKE) -C ../.. SUBDIRS=$(PWD) $@ |
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| /* | ||
| * Simple gptimers example | ||
| * http://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:drivers:gptimers | ||
| * | ||
| * Copyright 2007-2009 Analog Devices Inc. | ||
| * | ||
| * Licensed under the GPL-2 or later. | ||
| */ | ||
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| #include <linux/interrupt.h> | ||
| #include <linux/module.h> | ||
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| #include <asm/gptimers.h> | ||
| #include <asm/portmux.h> | ||
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| /* ... random driver includes ... */ | ||
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| #define DRIVER_NAME "gptimer_example" | ||
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| struct gptimer_data { | ||
| uint32_t period, width; | ||
| }; | ||
| static struct gptimer_data data; | ||
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| /* ... random driver state ... */ | ||
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| static irqreturn_t gptimer_example_irq(int irq, void *dev_id) | ||
| { | ||
| struct gptimer_data *data = dev_id; | ||
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| /* make sure it was our timer which caused the interrupt */ | ||
| if (!get_gptimer_intr(TIMER5_id)) | ||
| return IRQ_NONE; | ||
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| /* read the width/period values that were captured for the waveform */ | ||
| data->width = get_gptimer_pwidth(TIMER5_id); | ||
| data->period = get_gptimer_period(TIMER5_id); | ||
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| /* acknowledge the interrupt */ | ||
| clear_gptimer_intr(TIMER5_id); | ||
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| /* tell the upper layers we took care of things */ | ||
| return IRQ_HANDLED; | ||
| } | ||
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| /* ... random driver code ... */ | ||
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| static int __init gptimer_example_init(void) | ||
| { | ||
| int ret; | ||
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| /* grab the peripheral pins */ | ||
| ret = peripheral_request(P_TMR5, DRIVER_NAME); | ||
| if (ret) { | ||
| printk(KERN_NOTICE DRIVER_NAME ": peripheral request failed\n"); | ||
| return ret; | ||
| } | ||
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| /* grab the IRQ for the timer */ | ||
| ret = request_irq(IRQ_TIMER5, gptimer_example_irq, IRQF_SHARED, DRIVER_NAME, &data); | ||
| if (ret) { | ||
| printk(KERN_NOTICE DRIVER_NAME ": IRQ request failed\n"); | ||
| peripheral_free(P_TMR5); | ||
| return ret; | ||
| } | ||
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| /* setup the timer and enable it */ | ||
| set_gptimer_config(TIMER5_id, WDTH_CAP | PULSE_HI | PERIOD_CNT | IRQ_ENA); | ||
| enable_gptimers(TIMER5bit); | ||
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| return 0; | ||
| } | ||
| module_init(gptimer_example_init); | ||
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| static void __exit gptimer_example_exit(void) | ||
| { | ||
| disable_gptimers(TIMER5bit); | ||
| free_irq(IRQ_TIMER5, &data); | ||
| peripheral_free(P_TMR5); | ||
| } | ||
| module_exit(gptimer_example_exit); | ||
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| MODULE_LICENSE("BSD"); |
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