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| author | Paul Mundt <lethal@linux-sh.org> | 2010-10-02 19:43:40 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-10-02 19:43:40 +0900 |
| commit | 742759eae6b58a172d8f79ff0938d1e25dc9abc5 (patch) | |
| tree | 455f25ce9eb3a15ba4d35b7f45140d5506a81b45 /arch | |
| parent | 720a6bd785f92782921a1d0f00f15d60997f4037 (diff) | |
| download | kernel_samsung_smdk4412-742759eae6b58a172d8f79ff0938d1e25dc9abc5.tar.gz kernel_samsung_smdk4412-742759eae6b58a172d8f79ff0938d1e25dc9abc5.tar.bz2 kernel_samsung_smdk4412-742759eae6b58a172d8f79ff0938d1e25dc9abc5.zip | |
sh: Handle pinmux for SH-X3 proto IRQ/IRL modes.
The SH-X3 proto CPU has all of the external IRQ and IRL pins muxed, make
sure that we're able to grab them before attempting to register their
respective IRQ controllers.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/Kconfig | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/setup-shx3.c | 24 |
2 files changed, 25 insertions, 0 deletions
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index e46b61d64c7..803f0c1f29f 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -466,6 +466,7 @@ config CPU_SUBTYPE_SHX3 select CPU_SH4A select CPU_SHX3 select GENERIC_CLOCKEVENTS_BROADCAST if SMP + select ARCH_REQUIRE_GPIOLIB # SH4AL-DSP Processor Support diff --git a/arch/sh/kernel/cpu/sh4a/setup-shx3.c b/arch/sh/kernel/cpu/sh4a/setup-shx3.c index 04a487445aa..f159ea2cebc 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-shx3.c +++ b/arch/sh/kernel/cpu/sh4a/setup-shx3.c @@ -12,7 +12,9 @@ #include <linux/serial.h> #include <linux/serial_sci.h> #include <linux/io.h> +#include <linux/gpio.h> #include <linux/sh_timer.h> +#include <cpu/shx3.h> #include <asm/mmzone.h> /* @@ -440,11 +442,33 @@ static DECLARE_INTC_DESC(intc_desc_irl, "shx3-irl", vectors_irl, groups, void __init plat_irq_setup_pins(int mode) { + int ret = 0; + switch (mode) { case IRQ_MODE_IRQ: + ret |= gpio_request(GPIO_FN_IRQ3, intc_desc_irq.name); + ret |= gpio_request(GPIO_FN_IRQ2, intc_desc_irq.name); + ret |= gpio_request(GPIO_FN_IRQ1, intc_desc_irq.name); + ret |= gpio_request(GPIO_FN_IRQ0, intc_desc_irq.name); + + if (unlikely(ret)) { + pr_err("Failed to set IRQ mode\n"); + return; + } + register_intc_controller(&intc_desc_irq); break; case IRQ_MODE_IRL3210: + ret |= gpio_request(GPIO_FN_IRL3, intc_desc_irl.name); + ret |= gpio_request(GPIO_FN_IRL2, intc_desc_irl.name); + ret |= gpio_request(GPIO_FN_IRL1, intc_desc_irl.name); + ret |= gpio_request(GPIO_FN_IRL0, intc_desc_irl.name); + + if (unlikely(ret)) { + pr_err("Failed to set IRL mode\n"); + return; + } + register_intc_controller(&intc_desc_irl); break; default: |