[v3,4/9] ARM: S3C24XX: move s3c2416 irq init to common irq code

Message ID	201301190407.12684.heiko@sntech.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> From: Heiko =?utf-8?q?St=C3=BCbner?= <heiko@sntech.de> To: Kukjin Kim <kgene.kim@samsung.com> Subject: [PATCH v3 4/9] ARM: S3C24XX: move s3c2416 irq init to common irq code Date: Sat, 19 Jan 2013 04:07:12 +0100 User-Agent: KMail/1.13.7 (Linux/3.2.0-3-686-pae; KDE/4.8.4; i686; ; ) References: <201301190403.50317.heiko@sntech.de> In-Reply-To: <201301190403.50317.heiko@sntech.de> MIME-Version: 1.0 Message-Id: <201301190407.12684.heiko@sntech.de> summary: Content analysis details: (-2.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, ben-linux@fluff.org Precedence: list Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org

diff --git a/arch/arm/mach-s3c24xx/Makefile b/arch/arm/mach-s3c24xx/Makefile index 0ab6ab1..4d512cb 100644 --- a/arch/arm/mach-s3c24xx/Makefile +++ b/arch/arm/mach-s3c24xx/Makefile @@ -25,7 +25,7 @@ obj-$(CONFIG_S3C2412_DMA) += dma-s3c2412.o obj-$(CONFIG_S3C2412_PM) += pm-s3c2412.o obj-$(CONFIG_S3C2412_PM_SLEEP) += sleep-s3c2412.o -obj-$(CONFIG_CPU_S3C2416) += s3c2416.o irq-s3c2416.o clock-s3c2416.o +obj-$(CONFIG_CPU_S3C2416) += s3c2416.o clock-s3c2416.o obj-$(CONFIG_S3C2416_PM) += pm-s3c2416.o obj-$(CONFIG_CPU_S3C2440) += s3c2440.o irq-s3c2440.o clock-s3c2440.o diff --git a/arch/arm/mach-s3c24xx/irq-pm.c b/arch/arm/mach-s3c24xx/irq-pm.c index 640ec91..e119959 100644 --- a/arch/arm/mach-s3c24xx/irq-pm.c +++ b/arch/arm/mach-s3c24xx/irq-pm.c @@ -99,3 +99,26 @@ struct syscore_ops s3c24xx_irq_syscore_ops = { .suspend = s3c24xx_irq_suspend, .resume = s3c24xx_irq_resume, }; + +#ifdef CONFIG_CPU_S3C2416 +static struct sleep_save s3c2416_irq_save[] = { + SAVE_ITEM(S3C2416_INTMSK2), +}; + +static int s3c2416_irq_suspend(void) +{ + s3c_pm_do_save(s3c2416_irq_save, ARRAY_SIZE(s3c2416_irq_save)); + + return 0; +} + +static void s3c2416_irq_resume(void) +{ + s3c_pm_do_restore(s3c2416_irq_save, ARRAY_SIZE(s3c2416_irq_save)); +} + +struct syscore_ops s3c2416_irq_syscore_ops = { + .suspend = s3c2416_irq_suspend, + .resume = s3c2416_irq_resume, +}; +#endif diff --git a/arch/arm/mach-s3c24xx/irq-s3c2416.c b/arch/arm/mach-s3c24xx/irq-s3c2416.c deleted file mode 100644 index ff141b0..0000000 --- a/arch/arm/mach-s3c24xx/irq-s3c2416.c +++ /dev/null @@ -1,348 +0,0 @@ -/* linux/arch/arm/mach-s3c2416/irq.c - * - * Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>, - * as part of OpenInkpot project - * Copyright (c) 2009 Promwad Innovation Company - * Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * -*/ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/interrupt.h> -#include <linux/ioport.h> -#include <linux/device.h> -#include <linux/io.h> -#include <linux/syscore_ops.h> - -#include <mach/hardware.h> -#include <asm/irq.h> - -#include <asm/mach/irq.h> - -#include <mach/regs-irq.h> -#include <mach/regs-gpio.h> - -#include <plat/cpu.h> -#include <plat/pm.h> -#include <plat/irq.h> - -#define INTMSK(start, end) ((1 << ((end) + 1 - (start))) - 1) - -static inline void s3c2416_irq_demux(unsigned int irq, unsigned int len) -{ - unsigned int subsrc, submsk; - unsigned int end; - - /* read the current pending interrupts, and the mask - * for what it is available */ - - subsrc = __raw_readl(S3C2410_SUBSRCPND); - submsk = __raw_readl(S3C2410_INTSUBMSK); - - subsrc &= ~submsk; - subsrc >>= (irq - S3C2410_IRQSUB(0)); - subsrc &= (1 << len)-1; - - end = len + irq; - - for (; irq < end && subsrc; irq++) { - if (subsrc & 1) - generic_handle_irq(irq); - - subsrc >>= 1; - } -} - -/* WDT/AC97 sub interrupts */ - -static void s3c2416_irq_demux_wdtac97(unsigned int irq, struct irq_desc *desc) -{ - s3c2416_irq_demux(IRQ_S3C2443_WDT, 4); -} - -#define INTMSK_WDTAC97 (1UL << (IRQ_WDT - IRQ_EINT0)) -#define SUBMSK_WDTAC97 INTMSK(IRQ_S3C2443_WDT, IRQ_S3C2443_AC97) - -static void s3c2416_irq_wdtac97_mask(struct irq_data *data) -{ - s3c_irqsub_mask(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97); -} - -static void s3c2416_irq_wdtac97_unmask(struct irq_data *data) -{ - s3c_irqsub_unmask(data->irq, INTMSK_WDTAC97); -} - -static void s3c2416_irq_wdtac97_ack(struct irq_data *data) -{ - s3c_irqsub_maskack(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97); -} - -static struct irq_chip s3c2416_irq_wdtac97 = { - .irq_mask = s3c2416_irq_wdtac97_mask, - .irq_unmask = s3c2416_irq_wdtac97_unmask, - .irq_ack = s3c2416_irq_wdtac97_ack, -}; - -/* LCD sub interrupts */ - -static void s3c2416_irq_demux_lcd(unsigned int irq, struct irq_desc *desc) -{ - s3c2416_irq_demux(IRQ_S3C2443_LCD1, 4); -} - -#define INTMSK_LCD (1UL << (IRQ_LCD - IRQ_EINT0)) -#define SUBMSK_LCD INTMSK(IRQ_S3C2443_LCD1, IRQ_S3C2443_LCD4) - -static void s3c2416_irq_lcd_mask(struct irq_data *data) -{ - s3c_irqsub_mask(data->irq, INTMSK_LCD, SUBMSK_LCD); -} - -static void s3c2416_irq_lcd_unmask(struct irq_data *data) -{ - s3c_irqsub_unmask(data->irq, INTMSK_LCD); -} - -static void s3c2416_irq_lcd_ack(struct irq_data *data) -{ - s3c_irqsub_maskack(data->irq, INTMSK_LCD, SUBMSK_LCD); -} - -static struct irq_chip s3c2416_irq_lcd = { - .irq_mask = s3c2416_irq_lcd_mask, - .irq_unmask = s3c2416_irq_lcd_unmask, - .irq_ack = s3c2416_irq_lcd_ack, -}; - -/* DMA sub interrupts */ - -static void s3c2416_irq_demux_dma(unsigned int irq, struct irq_desc *desc) -{ - s3c2416_irq_demux(IRQ_S3C2443_DMA0, 6); -} - -#define INTMSK_DMA (1UL << (IRQ_S3C2443_DMA - IRQ_EINT0)) -#define SUBMSK_DMA INTMSK(IRQ_S3C2443_DMA0, IRQ_S3C2443_DMA5) - - -static void s3c2416_irq_dma_mask(struct irq_data *data) -{ - s3c_irqsub_mask(data->irq, INTMSK_DMA, SUBMSK_DMA); -} - -static void s3c2416_irq_dma_unmask(struct irq_data *data) -{ - s3c_irqsub_unmask(data->irq, INTMSK_DMA); -} - -static void s3c2416_irq_dma_ack(struct irq_data *data) -{ - s3c_irqsub_maskack(data->irq, INTMSK_DMA, SUBMSK_DMA); -} - -static struct irq_chip s3c2416_irq_dma = { - .irq_mask = s3c2416_irq_dma_mask, - .irq_unmask = s3c2416_irq_dma_unmask, - .irq_ack = s3c2416_irq_dma_ack, -}; - -/* UART3 sub interrupts */ - -static void s3c2416_irq_demux_uart3(unsigned int irq, struct irq_desc *desc) -{ - s3c2416_irq_demux(IRQ_S3C2443_RX3, 3); -} - -#define INTMSK_UART3 (1UL << (IRQ_S3C2443_UART3 - IRQ_EINT0)) -#define SUBMSK_UART3 (0x7 << (IRQ_S3C2443_RX3 - S3C2410_IRQSUB(0))) - -static void s3c2416_irq_uart3_mask(struct irq_data *data) -{ - s3c_irqsub_mask(data->irq, INTMSK_UART3, SUBMSK_UART3); -} - -static void s3c2416_irq_uart3_unmask(struct irq_data *data) -{ - s3c_irqsub_unmask(data->irq, INTMSK_UART3); -} - -static void s3c2416_irq_uart3_ack(struct irq_data *data) -{ - s3c_irqsub_maskack(data->irq, INTMSK_UART3, SUBMSK_UART3); -} - -static struct irq_chip s3c2416_irq_uart3 = { - .irq_mask = s3c2416_irq_uart3_mask, - .irq_unmask = s3c2416_irq_uart3_unmask, - .irq_ack = s3c2416_irq_uart3_ack, -}; - -/* second interrupt register */ - -static inline void s3c2416_irq_ack_second(struct irq_data *data) -{ - unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D); - - __raw_writel(bitval, S3C2416_SRCPND2); - __raw_writel(bitval, S3C2416_INTPND2); -} - -static void s3c2416_irq_mask_second(struct irq_data *data) -{ - unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D); - unsigned long mask; - - mask = __raw_readl(S3C2416_INTMSK2); - mask |= bitval; - __raw_writel(mask, S3C2416_INTMSK2); -} - -static void s3c2416_irq_unmask_second(struct irq_data *data) -{ - unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D); - unsigned long mask; - - mask = __raw_readl(S3C2416_INTMSK2); - mask &= ~bitval; - __raw_writel(mask, S3C2416_INTMSK2); -} - -static struct irq_chip s3c2416_irq_second = { - .irq_ack = s3c2416_irq_ack_second, - .irq_mask = s3c2416_irq_mask_second, - .irq_unmask = s3c2416_irq_unmask_second, -}; - - -/* IRQ initialisation code */ - -static int s3c2416_add_sub(unsigned int base, - void (*demux)(unsigned int, - struct irq_desc *), - struct irq_chip *chip, - unsigned int start, unsigned int end) -{ - unsigned int irqno; - - irq_set_chip_and_handler(base, &s3c_irq_level_chip, handle_level_irq); - irq_set_chained_handler(base, demux); - - for (irqno = start; irqno <= end; irqno++) { - irq_set_chip_and_handler(irqno, chip, handle_level_irq); - set_irq_flags(irqno, IRQF_VALID); - } - - return 0; -} - -static void s3c2416_irq_add_second(void) -{ - unsigned long pend; - unsigned long last; - int irqno; - int i; - - /* first, clear all interrupts pending... */ - last = 0; - for (i = 0; i < 4; i++) { - pend = __raw_readl(S3C2416_INTPND2); - - if (pend == 0 || pend == last) - break; - - __raw_writel(pend, S3C2416_SRCPND2); - __raw_writel(pend, S3C2416_INTPND2); - printk(KERN_INFO "irq: clearing pending status %08x\n", - (int)pend); - last = pend; - } - - for (irqno = IRQ_S3C2416_2D; irqno <= IRQ_S3C2416_I2S1; irqno++) { - switch (irqno) { - case IRQ_S3C2416_RESERVED2: - case IRQ_S3C2416_RESERVED3: - /* no IRQ here */ - break; - default: - irq_set_chip_and_handler(irqno, &s3c2416_irq_second, - handle_edge_irq); - set_irq_flags(irqno, IRQF_VALID); - } - } -} - -static int s3c2416_irq_add(struct device *dev, - struct subsys_interface *sif) -{ - printk(KERN_INFO "S3C2416: IRQ Support\n"); - - s3c2416_add_sub(IRQ_LCD, s3c2416_irq_demux_lcd, &s3c2416_irq_lcd, - IRQ_S3C2443_LCD2, IRQ_S3C2443_LCD4); - - s3c2416_add_sub(IRQ_S3C2443_DMA, s3c2416_irq_demux_dma, - &s3c2416_irq_dma, IRQ_S3C2443_DMA0, IRQ_S3C2443_DMA5); - - s3c2416_add_sub(IRQ_S3C2443_UART3, s3c2416_irq_demux_uart3, - &s3c2416_irq_uart3, - IRQ_S3C2443_RX3, IRQ_S3C2443_ERR3); - - s3c2416_add_sub(IRQ_WDT, s3c2416_irq_demux_wdtac97, - &s3c2416_irq_wdtac97, - IRQ_S3C2443_WDT, IRQ_S3C2443_AC97); - - s3c2416_irq_add_second(); - - return 0; -} - -static struct subsys_interface s3c2416_irq_interface = { - .name = "s3c2416_irq", - .subsys = &s3c2416_subsys, - .add_dev = s3c2416_irq_add, -}; - -static int __init s3c2416_irq_init(void) -{ - return subsys_interface_register(&s3c2416_irq_interface); -} - -arch_initcall(s3c2416_irq_init); - -#ifdef CONFIG_PM -static struct sleep_save irq_save[] = { - SAVE_ITEM(S3C2416_INTMSK2), -}; - -static int s3c2416_irq_suspend(void) -{ - s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save)); - - return 0; -} - -static void s3c2416_irq_resume(void) -{ - s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save)); -} - -struct syscore_ops s3c2416_irq_syscore_ops = { - .suspend = s3c2416_irq_suspend, - .resume = s3c2416_irq_resume, -}; -#endif diff --git a/arch/arm/plat-s3c24xx/irq.c b/arch/arm/plat-s3c24xx/irq.c index adb4358..137dc16 100644 --- a/arch/arm/plat-s3c24xx/irq.c +++ b/arch/arm/plat-s3c24xx/irq.c @@ -626,3 +626,289 @@ void __init s3c24xx_init_irq(void) s3c24xx_init_intc(NULL, &init_subint[0], main_intc, 0x4a000018); s3c24xx_init_intc(NULL, &init_eint[0], main_intc, 0x560000a4); } + +#ifdef CONFIG_CPU_S3C2416 +#define INTMSK(start, end) ((1 << ((end) + 1 - (start))) - 1) + +static inline void s3c2416_irq_demux(unsigned int irq, unsigned int len) +{ + unsigned int subsrc, submsk; + unsigned int end; + + /* read the current pending interrupts, and the mask + * for what it is available */ + + subsrc = __raw_readl(S3C2410_SUBSRCPND); + submsk = __raw_readl(S3C2410_INTSUBMSK); + + subsrc &= ~submsk; + subsrc >>= (irq - S3C2410_IRQSUB(0)); + subsrc &= (1 << len)-1; + + end = len + irq; + + for (; irq < end && subsrc; irq++) { + if (subsrc & 1) + generic_handle_irq(irq); + + subsrc >>= 1; + } +} + +/* WDT/AC97 sub interrupts */ + +static void s3c2416_irq_demux_wdtac97(unsigned int irq, struct irq_desc *desc) +{ + s3c2416_irq_demux(IRQ_S3C2443_WDT, 4); +} + +#define INTMSK_WDTAC97 (1UL << (IRQ_WDT - IRQ_EINT0)) +#define SUBMSK_WDTAC97 INTMSK(IRQ_S3C2443_WDT, IRQ_S3C2443_AC97) + +static void s3c2416_irq_wdtac97_mask(struct irq_data *data) +{ + s3c_irqsub_mask(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97); +} + +static void s3c2416_irq_wdtac97_unmask(struct irq_data *data) +{ + s3c_irqsub_unmask(data->irq, INTMSK_WDTAC97); +} + +static void s3c2416_irq_wdtac97_ack(struct irq_data *data) +{ + s3c_irqsub_maskack(data->irq, INTMSK_WDTAC97, SUBMSK_WDTAC97); +} + +static struct irq_chip s3c2416_irq_wdtac97 = { + .irq_mask = s3c2416_irq_wdtac97_mask, + .irq_unmask = s3c2416_irq_wdtac97_unmask, + .irq_ack = s3c2416_irq_wdtac97_ack, +}; + +/* LCD sub interrupts */ + +static void s3c2416_irq_demux_lcd(unsigned int irq, struct irq_desc *desc) +{ + s3c2416_irq_demux(IRQ_S3C2443_LCD1, 4); +} + +#define INTMSK_LCD (1UL << (IRQ_LCD - IRQ_EINT0)) +#define SUBMSK_LCD INTMSK(IRQ_S3C2443_LCD1, IRQ_S3C2443_LCD4) + +static void s3c2416_irq_lcd_mask(struct irq_data *data) +{ + s3c_irqsub_mask(data->irq, INTMSK_LCD, SUBMSK_LCD); +} + +static void s3c2416_irq_lcd_unmask(struct irq_data *data) +{ + s3c_irqsub_unmask(data->irq, INTMSK_LCD); +} + +static void s3c2416_irq_lcd_ack(struct irq_data *data) +{ + s3c_irqsub_maskack(data->irq, INTMSK_LCD, SUBMSK_LCD); +} + +static struct irq_chip s3c2416_irq_lcd = { + .irq_mask = s3c2416_irq_lcd_mask, + .irq_unmask = s3c2416_irq_lcd_unmask, + .irq_ack = s3c2416_irq_lcd_ack, +}; + +/* DMA sub interrupts */ + +static void s3c2416_irq_demux_dma(unsigned int irq, struct irq_desc *desc) +{ + s3c2416_irq_demux(IRQ_S3C2443_DMA0, 6); +} + +#define INTMSK_DMA (1UL << (IRQ_S3C2443_DMA - IRQ_EINT0)) +#define SUBMSK_DMA INTMSK(IRQ_S3C2443_DMA0, IRQ_S3C2443_DMA5) + + +static void s3c2416_irq_dma_mask(struct irq_data *data) +{ + s3c_irqsub_mask(data->irq, INTMSK_DMA, SUBMSK_DMA); +} + +static void s3c2416_irq_dma_unmask(struct irq_data *data) +{ + s3c_irqsub_unmask(data->irq, INTMSK_DMA); +} + +static void s3c2416_irq_dma_ack(struct irq_data *data) +{ + s3c_irqsub_maskack(data->irq, INTMSK_DMA, SUBMSK_DMA); +} + +static struct irq_chip s3c2416_irq_dma = { + .irq_mask = s3c2416_irq_dma_mask, + .irq_unmask = s3c2416_irq_dma_unmask, + .irq_ack = s3c2416_irq_dma_ack, +}; + +/* UART3 sub interrupts */ + +static void s3c2416_irq_demux_uart3(unsigned int irq, struct irq_desc *desc) +{ + s3c2416_irq_demux(IRQ_S3C2443_RX3, 3); +} + +#define INTMSK_UART3 (1UL << (IRQ_S3C2443_UART3 - IRQ_EINT0)) +#define SUBMSK_UART3 (0x7 << (IRQ_S3C2443_RX3 - S3C2410_IRQSUB(0))) + +static void s3c2416_irq_uart3_mask(struct irq_data *data) +{ + s3c_irqsub_mask(data->irq, INTMSK_UART3, SUBMSK_UART3); +} + +static void s3c2416_irq_uart3_unmask(struct irq_data *data) +{ + s3c_irqsub_unmask(data->irq, INTMSK_UART3); +} + +static void s3c2416_irq_uart3_ack(struct irq_data *data) +{ + s3c_irqsub_maskack(data->irq, INTMSK_UART3, SUBMSK_UART3); +} + +static struct irq_chip s3c2416_irq_uart3 = { + .irq_mask = s3c2416_irq_uart3_mask, + .irq_unmask = s3c2416_irq_uart3_unmask, + .irq_ack = s3c2416_irq_uart3_ack, +}; + +/* second interrupt register */ + +static inline void s3c2416_irq_ack_second(struct irq_data *data) +{ + unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D); + + __raw_writel(bitval, S3C2416_SRCPND2); + __raw_writel(bitval, S3C2416_INTPND2); +} + +static void s3c2416_irq_mask_second(struct irq_data *data) +{ + unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D); + unsigned long mask; + + mask = __raw_readl(S3C2416_INTMSK2); + mask |= bitval; + __raw_writel(mask, S3C2416_INTMSK2); +} + +static void s3c2416_irq_unmask_second(struct irq_data *data) +{ + unsigned long bitval = 1UL << (data->irq - IRQ_S3C2416_2D); + unsigned long mask; + + mask = __raw_readl(S3C2416_INTMSK2); + mask &= ~bitval; + __raw_writel(mask, S3C2416_INTMSK2); +} + +static struct irq_chip s3c2416_irq_second = { + .irq_ack = s3c2416_irq_ack_second, + .irq_mask = s3c2416_irq_mask_second, + .irq_unmask = s3c2416_irq_unmask_second, +}; + + +/* IRQ initialisation code */ + +static int s3c2416_add_sub(unsigned int base, + void (*demux)(unsigned int, + struct irq_desc *), + struct irq_chip *chip, + unsigned int start, unsigned int end) +{ + unsigned int irqno; + + irq_set_chip_and_handler(base, &s3c_irq_level_chip, handle_level_irq); + irq_set_chained_handler(base, demux); + + for (irqno = start; irqno <= end; irqno++) { + irq_set_chip_and_handler(irqno, chip, handle_level_irq); + set_irq_flags(irqno, IRQF_VALID); + } + + return 0; +} + +static void s3c2416_irq_add_second(void) +{ + unsigned long pend; + unsigned long last; + int irqno; + int i; + + /* first, clear all interrupts pending... */ + last = 0; + for (i = 0; i < 4; i++) { + pend = __raw_readl(S3C2416_INTPND2); + + if (pend == 0 || pend == last) + break; + + __raw_writel(pend, S3C2416_SRCPND2); + __raw_writel(pend, S3C2416_INTPND2); + printk(KERN_INFO "irq: clearing pending status %08x\n", + (int)pend); + last = pend; + } + + for (irqno = IRQ_S3C2416_2D; irqno <= IRQ_S3C2416_I2S1; irqno++) { + switch (irqno) { + case IRQ_S3C2416_RESERVED2: + case IRQ_S3C2416_RESERVED3: + /* no IRQ here */ + break; + default: + irq_set_chip_and_handler(irqno, &s3c2416_irq_second, + handle_edge_irq); + set_irq_flags(irqno, IRQF_VALID); + } + } +} + +static int s3c2416_irq_add(struct device *dev, + struct subsys_interface *sif) +{ + printk(KERN_INFO "S3C2416: IRQ Support\n"); + + s3c2416_add_sub(IRQ_LCD, s3c2416_irq_demux_lcd, &s3c2416_irq_lcd, + IRQ_S3C2443_LCD2, IRQ_S3C2443_LCD4); + + s3c2416_add_sub(IRQ_S3C2443_DMA, s3c2416_irq_demux_dma, + &s3c2416_irq_dma, IRQ_S3C2443_DMA0, IRQ_S3C2443_DMA5); + + s3c2416_add_sub(IRQ_S3C2443_UART3, s3c2416_irq_demux_uart3, + &s3c2416_irq_uart3, + IRQ_S3C2443_RX3, IRQ_S3C2443_ERR3); + + s3c2416_add_sub(IRQ_WDT, s3c2416_irq_demux_wdtac97, + &s3c2416_irq_wdtac97, + IRQ_S3C2443_WDT, IRQ_S3C2443_AC97); + + s3c2416_irq_add_second(); + + return 0; +} + +static struct subsys_interface s3c2416_irq_interface = { + .name = "s3c2416_irq", + .subsys = &s3c2416_subsys, + .add_dev = s3c2416_irq_add, +}; + +static int __init s3c2416_irq_init(void) +{ + return subsys_interface_register(&s3c2416_irq_interface); +} + +arch_initcall(s3c2416_irq_init); + +#endif

[v3,4/9] ARM: S3C24XX: move s3c2416 irq init to common irq code

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Patch