samples: move blackfin gptimers-example from Documentation

Move blackfin gptimers-example to samples and remove it from Documentation
Makefile. Update samples Kconfig and Makefile to build gptimers-example.

blackfin is the last CONFIG_BUILD_DOCSRC target in Documentation/Makefile.
Hence this patch also includes changes to remove CONFIG_BUILD_DOCSRC from
Makefile and lib/Kconfig.debug and updates VIDEO_PCI_SKELETON dependency
on BUILD_DOCSRC.

Documentation/Makefile is not deleted to avoid braking make htmldocs and
make distclean.

Acked-by: Michal Marek <mmarek@suse.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reported-by: Valentin Rothberg <valentinrothberg@gmail.com>
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>

4 files changed, 1 insertions, 101 deletions

diff --git a/Documentation/Makefile b/Documentation/Makefile
index 84359654cfcb..c2a469112c37 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -1 +1 @@
-subdir-y := blackfin
+subdir-y :=
diff --git a/Documentation/blackfin/00-INDEX b/Documentation/blackfin/00-INDEX
index c54fcdd4ae9f..265a1effebde 100644
--- a/Documentation/blackfin/00-INDEX
+++ b/Documentation/blackfin/00-INDEX
@@ -1,10 +1,6 @@
 00-INDEX
 	- This file
-Makefile
-	- Makefile for gptimers example file.
 bfin-gpio-notes.txt
 	- Notes in developing/using bfin-gpio driver.
 bfin-spi-notes.txt
 	- Notes for using bfin spi bus driver.
-gptimers-example.c
-	- gptimers example
diff --git a/Documentation/blackfin/Makefile b/Documentation/blackfin/Makefile
deleted file mode 100644
index 6782c58fbc29..000000000000
--- a/Documentation/blackfin/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-ifneq ($(CONFIG_BLACKFIN),)
-ifneq ($(CONFIG_BFIN_GPTIMERS),)
-obj-m := gptimers-example.o
-endif
-endif
diff --git a/Documentation/blackfin/gptimers-example.c b/Documentation/blackfin/gptimers-example.c
deleted file mode 100644
index 283eba993d9d..000000000000
--- a/Documentation/blackfin/gptimers-example.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * 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.
- */
-
-#include <linux/interrupt.h>
-#include <linux/module.h>
-
-#include <asm/gptimers.h>
-#include <asm/portmux.h>
-
-/* ... random driver includes ... */
-
-#define DRIVER_NAME "gptimer_example"
-
-#ifdef IRQ_TIMER5
-#define SAMPLE_IRQ_TIMER IRQ_TIMER5
-#else
-#define SAMPLE_IRQ_TIMER IRQ_TIMER2
-#endif
-
-struct gptimer_data {
-	uint32_t period, width;
-};
-static struct gptimer_data data;
-
-/* ... random driver state ... */
-
-static irqreturn_t gptimer_example_irq(int irq, void *dev_id)
-{
-	struct gptimer_data *data = dev_id;
-
-	/* make sure it was our timer which caused the interrupt */
-	if (!get_gptimer_intr(TIMER5_id))
-		return IRQ_NONE;
-
-	/* 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);
-
-	/* acknowledge the interrupt */
-	clear_gptimer_intr(TIMER5_id);
-
-	/* tell the upper layers we took care of things */
-	return IRQ_HANDLED;
-}
-
-/* ... random driver code ... */
-
-static int __init gptimer_example_init(void)
-{
-	int ret;
-
-	/* grab the peripheral pins */
-	ret = peripheral_request(P_TMR5, DRIVER_NAME);
-	if (ret) {
-		printk(KERN_NOTICE DRIVER_NAME ": peripheral request failed\n");
-		return ret;
-	}
-
-	/* grab the IRQ for the timer */
-	ret = request_irq(SAMPLE_IRQ_TIMER, 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;
-	}
-
-	/* setup the timer and enable it */
-	set_gptimer_config(TIMER5_id,
-			WDTH_CAP | PULSE_HI | PERIOD_CNT | IRQ_ENA);
-	enable_gptimers(TIMER5bit);
-
-	return 0;
-}
-module_init(gptimer_example_init);
-
-static void __exit gptimer_example_exit(void)
-{
-	disable_gptimers(TIMER5bit);
-	free_irq(SAMPLE_IRQ_TIMER, &data);
-	peripheral_free(P_TMR5);
-}
-module_exit(gptimer_example_exit);
-
-MODULE_LICENSE("BSD");