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author | Olof Johansson <olof@lixom.net> | 2012-09-06 00:35:48 +0200 |
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committer | Olof Johansson <olof@lixom.net> | 2012-09-06 00:35:48 +0200 |
commit | 1875962377574b4edb7b164001e3e341c25290d5 (patch) | |
tree | 374a5299403ec21e2d9a66a6548ce876a388b589 /drivers/gpio/gpio-pxa.c | |
parent | Merge branch 'dt' of git://github.com/hzhuang1/linux into next/dt (diff) | |
parent | ARM: mach-shmobile: Add compilation support for dtbs using 'make dtbs' (diff) | |
download | linux-1875962377574b4edb7b164001e3e341c25290d5.tar.xz linux-1875962377574b4edb7b164001e3e341c25290d5.zip |
Merge branch 'soc-core' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt
* 'soc-core' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: mach-shmobile: Add compilation support for dtbs using 'make dtbs'
+ sync to 3.6-rc3
Diffstat (limited to 'drivers/gpio/gpio-pxa.c')
-rw-r--r-- | drivers/gpio/gpio-pxa.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index db5c2958f973..9528779ca463 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -65,6 +65,7 @@ static int irq_base; #ifdef CONFIG_OF static struct irq_domain *domain; +static struct device_node *pxa_gpio_of_node; #endif struct pxa_gpio_chip { @@ -231,6 +232,24 @@ static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value) (value ? GPSR_OFFSET : GPCR_OFFSET)); } +#ifdef CONFIG_OF_GPIO +static int pxa_gpio_of_xlate(struct gpio_chip *gc, + const struct of_phandle_args *gpiospec, + u32 *flags) +{ + if (gpiospec->args[0] > pxa_last_gpio) + return -EINVAL; + + if (gc != &pxa_gpio_chips[gpiospec->args[0] / 32].chip) + return -EINVAL; + + if (flags) + *flags = gpiospec->args[1]; + + return gpiospec->args[0] % 32; +} +#endif + static int __devinit pxa_init_gpio_chip(int gpio_end, int (*set_wake)(unsigned int, unsigned int)) { @@ -258,6 +277,11 @@ static int __devinit pxa_init_gpio_chip(int gpio_end, c->get = pxa_gpio_get; c->set = pxa_gpio_set; c->to_irq = pxa_gpio_to_irq; +#ifdef CONFIG_OF_GPIO + c->of_node = pxa_gpio_of_node; + c->of_xlate = pxa_gpio_of_xlate; + c->of_gpio_n_cells = 2; +#endif /* number of GPIOs on last bank may be less than 32 */ c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32; @@ -447,6 +471,7 @@ static int pxa_gpio_nums(void) return count; } +#ifdef CONFIG_OF static struct of_device_id pxa_gpio_dt_ids[] = { { .compatible = "mrvl,pxa-gpio" }, { .compatible = "mrvl,mmp-gpio", .data = (void *)MMP_GPIO }, @@ -464,9 +489,9 @@ static int pxa_irq_domain_map(struct irq_domain *d, unsigned int irq, const struct irq_domain_ops pxa_irq_domain_ops = { .map = pxa_irq_domain_map, + .xlate = irq_domain_xlate_twocell, }; -#ifdef CONFIG_OF static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev) { int ret, nr_banks, nr_gpios; @@ -504,6 +529,7 @@ static int __devinit pxa_gpio_probe_dt(struct platform_device *pdev) } domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0, &pxa_irq_domain_ops, NULL); + pxa_gpio_of_node = np; return 0; err: iounmap(gpio_reg_base); @@ -622,7 +648,7 @@ static struct platform_driver pxa_gpio_driver = { .probe = pxa_gpio_probe, .driver = { .name = "pxa-gpio", - .of_match_table = pxa_gpio_dt_ids, + .of_match_table = of_match_ptr(pxa_gpio_dt_ids), }, }; |