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authorOlof Johansson <olof@lixom.net>2013-06-11 11:21:46 +0400
committerOlof Johansson <olof@lixom.net>2013-06-11 11:21:46 +0400
commit620fa619a9aace41c21330d38fa045576ce3caff (patch)
tree100fd9e4a39aaa6378ef948f8dd063ab1e4240c4 /drivers/gpio
parented3d27feccacf38299c244e9c0912e884a752b1d (diff)
parent5fcf4a3c3a5bc08bf72a50ef1332501a3c1b96bb (diff)
downloadlinux-620fa619a9aace41c21330d38fa045576ce3caff.tar.xz
Merge tag 'renesas-pinmux-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
From Simon Horman: Renesas ARM based SoC pinmux and GPIO update for v3.11 SH-PFC: * Entries for INTC external IRQs * Remove dependency on GPIOLIB * PFC support for r8a7790 SoC * Pinmux support for r8a7778 SoC * Increase pin group and function coverage for sh7372, r8a7740, r8a7778, r8a7779 and r8a7790 SoCs * Use pinctrl mapping on mackerel, ap4evb, armadillo800eva, bonito, bockw, lager boards * Use RCAR_GP_PIN macro in marzen board * Remove unused GPIOs for sh7372, sh73a0, r8a7740 and r8a7790 SoCs * Add bias (pull-up/down) pinconf support for r8a7740 SoC * Add VCCQ support for sh73a0 GPIO car: * Add RCAR_GP_PIN macro * Add support for IRQ_TYPE_EDGE_BOTH * Make the platform data gpio_base field signed The GPIO changes have been included as the RCAR_GP_PIN and IRQ_TYPE_EDGE_BOTH changes are depended on by SH-PFC changes. * tag 'renesas-pinmux-for-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (132 commits) ARM: shmobile: marzen: Use RCAR_GP_PIN macro ARM: shmobile: lager: Initialize pinmux ARM: shmobile: bockw: add pinctrl support ARM: shmobile: kzm9g: tidyup FSI pinctrl ARM: shmobile: r8a7740 pinmux platform device cleanup ARM: shmobile: r8a7790: Configure R-Car GPIO for IRQ_TYPE_EDGE_BOTH pinctrl: sh-pfc: r8a7779: Fix missing MOD_SEL2 entry Revert "ARM: shmobile: Disallow PINCTRL without GPIOLIB" pinctrl: r8a7790: add pinmux data for MMCIF and SDHI interfaces sh-pfc: r8a7778: add MMCIF pin groups sh-pfc: r8a7778: add HSPI pin groups sh-pfc: r8a7778: add I2C pin groups pinctrl: sh-pfc: fix a typo in pfc-r8a7790 pinctrl: sh-pfc: fix r8a7790 Function Select register tables sh-pfc: r8a7778: fixup IRQ1A settings sh-pfc: r8a7779: add Ether pin groups sh-pfc: r8a7778: add Ether pin groups sh-pfc: r8a7778: add VIN pin groups sh-pfc: sh73a0: Remove function GPIOs sh-pfc: r8a7790: Add TPU pin groups and functions ...
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-rcar.c28
1 files changed, 22 insertions, 6 deletions
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index b4ca450947b8..d173d56dbb8c 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -49,6 +49,7 @@ struct gpio_rcar_priv {
#define POSNEG 0x20
#define EDGLEVEL 0x24
#define FILONOFF 0x28
+#define BOTHEDGE 0x4c
static inline u32 gpio_rcar_read(struct gpio_rcar_priv *p, int offs)
{
@@ -91,7 +92,8 @@ static void gpio_rcar_irq_enable(struct irq_data *d)
static void gpio_rcar_config_interrupt_input_mode(struct gpio_rcar_priv *p,
unsigned int hwirq,
bool active_high_rising_edge,
- bool level_trigger)
+ bool level_trigger,
+ bool both)
{
unsigned long flags;
@@ -108,6 +110,10 @@ static void gpio_rcar_config_interrupt_input_mode(struct gpio_rcar_priv *p,
/* Configure edge or level trigger in EDGLEVEL */
gpio_rcar_modify_bit(p, EDGLEVEL, hwirq, !level_trigger);
+ /* Select one edge or both edges in BOTHEDGE */
+ if (p->config.has_both_edge_trigger)
+ gpio_rcar_modify_bit(p, BOTHEDGE, hwirq, both);
+
/* Select "Interrupt Input Mode" in IOINTSEL */
gpio_rcar_modify_bit(p, IOINTSEL, hwirq, true);
@@ -127,16 +133,26 @@ static int gpio_rcar_irq_set_type(struct irq_data *d, unsigned int type)
switch (type & IRQ_TYPE_SENSE_MASK) {
case IRQ_TYPE_LEVEL_HIGH:
- gpio_rcar_config_interrupt_input_mode(p, hwirq, true, true);
+ gpio_rcar_config_interrupt_input_mode(p, hwirq, true, true,
+ false);
break;
case IRQ_TYPE_LEVEL_LOW:
- gpio_rcar_config_interrupt_input_mode(p, hwirq, false, true);
+ gpio_rcar_config_interrupt_input_mode(p, hwirq, false, true,
+ false);
break;
case IRQ_TYPE_EDGE_RISING:
- gpio_rcar_config_interrupt_input_mode(p, hwirq, true, false);
+ gpio_rcar_config_interrupt_input_mode(p, hwirq, true, false,
+ false);
break;
case IRQ_TYPE_EDGE_FALLING:
- gpio_rcar_config_interrupt_input_mode(p, hwirq, false, false);
+ gpio_rcar_config_interrupt_input_mode(p, hwirq, false, false,
+ false);
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ if (!p->config.has_both_edge_trigger)
+ return -EINVAL;
+ gpio_rcar_config_interrupt_input_mode(p, hwirq, true, false,
+ true);
break;
default:
return -EINVAL;
@@ -333,7 +349,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
}
if (devm_request_irq(&pdev->dev, irq->start,
- gpio_rcar_irq_handler, 0, name, p)) {
+ gpio_rcar_irq_handler, IRQF_SHARED, name, p)) {
dev_err(&pdev->dev, "failed to request IRQ\n");
ret = -ENOENT;
goto err1;