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authorMarek Szyprowski <m.szyprowski@samsung.com>2011-03-15 21:17:43 +0900
committerKukjin Kim <kgene.kim@samsung.com>2011-03-15 21:17:43 +0900
commita43efddc3bf8b143ff9352763cd39d425db14d27 (patch)
tree250d9987ae00298c9f63735728b8dd6d2b1fe4e4 /arch/arm/plat-samsung/include/plat/gpio-cfg.h
parent2de0926204b100409bcd51465404ae846c7f48fd (diff)
ARM: S5P: Add function to register gpio interrupt bank data
This patch removes all global data from common s5p gpio interrupt handler code. This enables to reuse this code on EXYNOS4 platform. Instead of global data (IRQ_GPIOINT interrupt number, S5P_GPIOINT_GROUP_MAXNR groups count), a s5p_register_gpioint_bank() function is introduced. It is aimed to be called from gpiolib init. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/gpio-cfg.h')
-rw-r--r--arch/arm/plat-samsung/include/plat/gpio-cfg.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
index e4b5cf126fa..5e04fa6eda7 100644
--- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h
+++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h
@@ -225,4 +225,20 @@ extern int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr);
*/
extern int s5p_register_gpio_interrupt(int pin);
+/** s5p_register_gpioint_bank() - add gpio bank for further gpio interrupt
+ * registration (see s5p_register_gpio_interrupt function)
+ * @chain_irq: chained irq number for the gpio int handler for this bank
+ * @start: start gpio group number of this bank
+ * @nr_groups: number of gpio groups handled by this bank
+ *
+ * This functions registers initial information about gpio banks that
+ * can be later used by the s5p_register_gpio_interrupt() function to
+ * enable support for gpio interrupt for particular gpio group.
+ */
+#ifdef CONFIG_S5P_GPIO_INT
+extern int s5p_register_gpioint_bank(int chain_irq, int start, int nr_groups);
+#else
+#define s5p_register_gpioint_bank(chain_irq, start, nr_groups) do { } while (0)
+#endif
+
#endif /* __PLAT_GPIO_CFG_H */