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authorLinus Torvalds <torvalds@linux-foundation.org>2014-01-21 22:14:10 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-01-21 22:14:10 +0400
commita547df99aad777c1807e23991fa2471693c0e4cc (patch)
tree8e0a198648483580c9a7aa40efa4927c282fa4b1 /drivers/pinctrl/sh-pfc/gpio.c
parent8e5096607280d4e103389bfe8f8b7decbf538ff6 (diff)
parentfa8cf57c923e86a693a85aff1df579245a27cbb3 (diff)
downloadlinux-a547df99aad777c1807e23991fa2471693c0e4cc.tar.xz
Merge tag 'pinctrl-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull bulk pin control changes from Linus Walleij: "This has been queued and tested for a while. Lots of action here, like in the GPIO tree, embedded stuff like this is really hot now it seems. Details in the signed tag. I'm especially happy about the Qualcomm driver as it is used in such a huge subset of mobile handsets out there, and these platforms in general need better upstream support - New driver for the Qualcomm TLMM pin controller and its msm8x74 subdriver. - New driver for the Broadcom Capri BCM281xx SoC. - New subdriver for the imx25 pin controller. - New subdriver for the Tegra124 pin controller. - Lock GPIO lines as IRQs for select combined pin control and GPIO drivers for baytrail and sirf. - Some semi-big refactorings and extenstions to the sirf driver. - Lots of patching, cleanup and fixing in the Renesas "PFC" driver and associated subdrivers as usual. It is settling down a little bit now it seems. - Minor fixes and incremental updates here and there as usual" * tag 'pinctrl-v3.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits) pinctrl: sunxi: Honor GPIO output initial vaules pinctrl: capri: add dependency on OF ARM: bcm11351: Enable pinctrl for Broadcom Capri SoCs ARM: pinctrl: Add Broadcom Capri pinctrl driver pinctrl: Add pinctrl binding for Broadcom Capri SoCs pinctrl: Add void * to pinctrl_pin_desc pinctrl: st: Fix a typo in probe pinctrl: Fix some typos and grammar issues in the documentation pinctrl: sirf: lock IRQs when starting them pinctrl: sirf: put gpio interrupt pin into input status automatically pinctrl: sirf: use only one irq_domain for the whole device node pinctrl: single: fix infinite loop caused by bad mask pinctrl: single: fix pcs_disable with bits_per_mux pinctrl: single: fix DT bindings documentation pinctrl: as3722: Set pin to output mode for some function pinctrl: sirf: add pin group for USP0 with only RX or TX frame sync pinctrl: sirf: fix the pins of sdmmc5 connected with TriG pinctrl: sirf: add lost usp1_uart_nostreamctrl group for atlas6 pinctrl: sunxi: Add Allwinner A20 clock output pin functions pinctrl/lantiq: fix typo ...
Diffstat (limited to 'drivers/pinctrl/sh-pfc/gpio.c')
-rw-r--r--drivers/pinctrl/sh-pfc/gpio.c24
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/pinctrl/sh-pfc/gpio.c b/drivers/pinctrl/sh-pfc/gpio.c
index 04bf52b64fb3..a9288ab01f7b 100644
--- a/drivers/pinctrl/sh-pfc/gpio.c
+++ b/drivers/pinctrl/sh-pfc/gpio.c
@@ -204,18 +204,24 @@ static void gpio_pin_set(struct gpio_chip *gc, unsigned offset, int value)
static int gpio_pin_to_irq(struct gpio_chip *gc, unsigned offset)
{
struct sh_pfc *pfc = gpio_to_pfc(gc);
- int i, k;
+ unsigned int i, k;
for (i = 0; i < pfc->info->gpio_irq_size; i++) {
- unsigned short *gpios = pfc->info->gpio_irq[i].gpios;
+ const short *gpios = pfc->info->gpio_irq[i].gpios;
- for (k = 0; gpios[k]; k++) {
+ for (k = 0; gpios[k] >= 0; k++) {
if (gpios[k] == offset)
- return pfc->info->gpio_irq[i].irq;
+ goto found;
}
}
return -ENOSYS;
+
+found:
+ if (pfc->num_irqs)
+ return pfc->irqs[i];
+ else
+ return pfc->info->gpio_irq[i].irq;
}
static int gpio_pin_setup(struct sh_pfc_chip *chip)
@@ -347,7 +353,7 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
* GPIOs.
*/
for (i = 0; i < pfc->num_windows; ++i) {
- struct sh_pfc_window *window = &pfc->window[i];
+ struct sh_pfc_window *window = &pfc->windows[i];
if (pfc->info->data_regs[0].reg >= window->phys &&
pfc->info->data_regs[0].reg < window->phys + window->size)
@@ -357,8 +363,14 @@ int sh_pfc_register_gpiochip(struct sh_pfc *pfc)
if (i == pfc->num_windows)
return 0;
+ /* If we have IRQ resources make sure their number is correct. */
+ if (pfc->num_irqs && pfc->num_irqs != pfc->info->gpio_irq_size) {
+ dev_err(pfc->dev, "invalid number of IRQ resources\n");
+ return -EINVAL;
+ }
+
/* Register the real GPIOs chip. */
- chip = sh_pfc_add_gpiochip(pfc, gpio_pin_setup, &pfc->window[i]);
+ chip = sh_pfc_add_gpiochip(pfc, gpio_pin_setup, &pfc->windows[i]);
if (IS_ERR(chip))
return PTR_ERR(chip);