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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 16:05:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 16:05:10 -0700
commitdff8360a4a079692e65e55fbaa6c5dc605528403 (patch)
tree0ab8ef7595cdfb918b3fd9a8364c6ea6c9c2798f /drivers/gpio/gpio-pxa.c
parent916082b073ebb7f4e064cebce0768e34cacde508 (diff)
parent901acf5b2910434501c221a363bb3486b647b5c4 (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.c13
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);