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Commit fbce1c23 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6 

Changes queued in gpio/next for the start of the 3.3 merge window

* tag 'gpio-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6:
  gpio: Add decode of WM8994 GPIO configuration
  gpio: Convert GPIO drivers to module_platform_driver
  gpio: Fix typo in comment in Samsung driver
  gpio: Explicitly index samsung_gpio_cfgs
  gpio: Add Linus Walleij as gpio co-maintainer
  of: Add device tree selftests
  of: create of_phandle_args to simplify return of phandle parsing data
  gpio/powerpc: Eliminate duplication of of_get_named_gpio_flags()
  gpio/microblaze: Eliminate duplication of of_get_named_gpio_flags()
  gpiolib: output basic details and consolidate gpio device drivers
  pch_gpio: Change company name OKI SEMICONDUCTOR to LAPIS Semiconductor
  pch_gpio: Support new device LAPIS Semiconductor ML7831 IOH
  spi/pl022: make the chip deselect handling thread safe
  spi/pl022: add support for pm_runtime autosuspend
  spi/pl022: disable the PL022 block when unused
  spi/pl022: move device disable to workqueue thread
  spi/pl022: skip default configuration before suspending
  spi/pl022: fix build warnings
  spi/pl022: only enable RX interrupts when TX is complete
parents 7affca35 d0ad5e89

MAINTAINERS

+1 −0
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@@ -2912,6 +2912,7 @@ F: include/linux/gigaset_dev.h 


GPIO SUBSYSTEM

M:	Grant Likely <grant.likely@secretlab.ca>

M:	Linus Walleij <linus.walleij@stericsson.com>

S:	Maintained

T:	git git://git.secretlab.ca/git/linux-2.6.git

F:	Documentation/gpio.txt

arch/arm/boot/dts/testcases/tests-phandle.dtsi

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/ {

	testcase-data {

		phandle-tests {

			provider0: provider0 {

				#phandle-cells = <0>;

			};



			provider1: provider1 {

				#phandle-cells = <1>;

			};



			provider2: provider2 {

				#phandle-cells = <2>;

			};



			provider3: provider3 {

				#phandle-cells = <3>;

			};



			consumer-a {

				phandle-list =	<&provider1 1>,

						<&provider2 2 0>,

						<0>,

						<&provider3 4 4 3>,

						<&provider2 5 100>,

						<&provider0>,

						<&provider1 7>;

				phandle-list-names = "first", "second", "third";



				phandle-list-bad-phandle = <12345678 0 0>;

				phandle-list-bad-args = <&provider2 1 0>,

							<&provider3 0>;

			};

		};

	};

};

arch/arm/boot/dts/testcases/tests.dtsi

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/include/ "tests-phandle.dtsi"

arch/arm/boot/dts/versatile-pb.dts

+2 −0
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@@ -46,3 +46,5 @@ 
		};

	};

};



/include/ "testcases/tests.dtsi"

arch/microblaze/kernel/reset.c

+2 −41
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@@ -19,50 +19,11 @@ 
static int handle; /* reset pin handle */

static unsigned int reset_val;



static int of_reset_gpio_handle(void)

{

	int ret; /* variable which stored handle reset gpio pin */

	struct device_node *root; /* root node */

	struct device_node *gpio; /* gpio node */

	struct gpio_chip *gc;

	u32 flags;

	const void *gpio_spec;



	/* find out root node */

	root = of_find_node_by_path("/");



	/* give me handle for gpio node to be possible allocate pin */

	ret = of_parse_phandles_with_args(root, "hard-reset-gpios",

				"#gpio-cells", 0, &gpio, &gpio_spec);

	if (ret) {

		pr_debug("%s: can't parse gpios property\n", __func__);

		goto err0;

	}



	gc = of_node_to_gpiochip(gpio);

	if (!gc) {

		pr_debug("%s: gpio controller %s isn't registered\n",

			 root->full_name, gpio->full_name);

		ret = -ENODEV;

		goto err1;

	}



	ret = gc->of_xlate(gc, root, gpio_spec, &flags);

	if (ret < 0)

		goto err1;



	ret += gc->base;

err1:

	of_node_put(gpio);

err0:

	pr_debug("%s exited with status %d\n", __func__, ret);

	return ret;

}



void of_platform_reset_gpio_probe(void)

{

	int ret;

	handle = of_reset_gpio_handle();

	handle = of_get_named_gpio(of_find_node_by_path("/"),

				   "hard-reset-gpios", 0);



	if (!gpio_is_valid(handle)) {

		printk(KERN_INFO "Skipping unavailable RESET gpio %d (%s)\n",