diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-02 16:05:10 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-02 16:05:10 -0700 |
commit | dff8360a4a079692e65e55fbaa6c5dc605528403 (patch) | |
tree | 0ab8ef7595cdfb918b3fd9a8364c6ea6c9c2798f /drivers/gpio/gpio-pxa.c | |
parent | 916082b073ebb7f4e064cebce0768e34cacde508 (diff) | |
parent | 901acf5b2910434501c221a363bb3486b647b5c4 (diff) |
Merge tag 'gpio-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO changes from Linus Walleij:
"So this is the LW GPIO patch stack for v3.7:
- refactoring from Thierry Redding at Arnd Bergmann's request to use
the seq_file iterator interface in gpiolib.
- A new driver for Avionic Design's N-bit GPIO expander.
- Two instances of mutexes replaced by spinlocks from Axel Lin to
code that is supposed to be fastpath compliant.
- IRQ demuxer and gpio_to_irq() support for pcf857x by Kuninori
Morimoto.
- Dynamic GPIO numbers, device tree support, daisy chaining and some
other fixes for the 74x164 driver by Maxime Ripard.
- IRQ domain and device tree support for the tc3589x driver by Lee
Jones.
- Some conversion to use managed resources devm_* code.
- Some instances of clk_prepare() or clk_prepare_enable() added to
support the new, stricter common clock framework.
- Some for_each_set_bit() simplifications.
- Then a lot of fixes as we fixed up all of the above tripping over
our own shoelaces and that kind of thing."
* tag 'gpio-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (34 commits)
gpio: pcf857x: select IRQ_DOMAIN
gpio: Document device_node's det_debounce
gpio-lpc32xx: Add GPI_28
gpio: adnp: dt: Reference generic interrupt binding
gpio: Add Avionic Design N-bit GPIO expander support
gpio: pxa: using for_each_set_bit to simplify the code
gpio_msm: using for_each_set_bit to simplify the code
gpio: Enable the tc3298x GPIO expander driver for Device Tree
gpio: Provide the tc3589x GPIO expander driver with an IRQ domain
ARM: shmobile: kzm9g: use gpio-keys instead of gpio-keys-polled
gpio: pcf857x: fixup smatch WARNING
gpio: 74x164: Add support for the daisy-chaining
gpio: 74x164: dts: Add documentation for the dt binding
dt: Fix incorrect reference in gpio-led documentation
gpio: 74x164: Add device tree support
gpio: 74x164: Use dynamic gpio number assignment if no pdata is present
gpio: 74x164: Use devm_kzalloc
gpio: 74x164: Use module_spi_driver boiler plate function
gpio: sx150x: Use irq_data_get_irq_chip_data() at appropriate places
gpio: em: Use irq_data_get_irq_chip_data() at appropriate places
...
Diffstat (limited to 'drivers/gpio/gpio-pxa.c')
-rw-r--r-- | drivers/gpio/gpio-pxa.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index 9528779ca46..98d52cb3fd1 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -370,12 +370,10 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc) gedr = gedr & c->irq_mask; writel_relaxed(gedr, c->regbase + GEDR_OFFSET); - n = find_first_bit(&gedr, BITS_PER_LONG); - while (n < BITS_PER_LONG) { + for_each_set_bit(n, &gedr, BITS_PER_LONG) { loop = 1; generic_handle_irq(gpio_to_irq(gpio_base + n)); - n = find_next_bit(&gedr, BITS_PER_LONG, n + 1); } } } while (loop); @@ -589,19 +587,12 @@ static int __devinit pxa_gpio_probe(struct platform_device *pdev) iounmap(gpio_reg_base); return PTR_ERR(clk); } - ret = clk_prepare(clk); + ret = clk_prepare_enable(clk); if (ret) { clk_put(clk); iounmap(gpio_reg_base); return ret; } - ret = clk_enable(clk); - if (ret) { - clk_unprepare(clk); - clk_put(clk); - iounmap(gpio_reg_base); - return ret; - } /* Initialize GPIO chips */ info = dev_get_platdata(&pdev->dev); |