From: Arnd Bergmann Date: Tue, 9 Apr 2013 20:07:37 +0000 (+0200) Subject: Merge tag 'mct-exynos-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git... X-Git-Tag: v3.10-rc1~102^2~13 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=228e3023eb0430b4b9ed0736f8f87c96a6cd9c7a;p=profile%2Fivi%2Fkernel-x86-ivi.git Merge tag 'mct-exynos-for-v3.10' of git://git./linux/kernel/git/kgene/linux-samsung into next/drivers From Kukjin Kim : add support exynos mct device tree and move into drivers/clocksource * tag 'mct-exynos-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: clocksource: mct: Add terminating entry for exynos_mct_ids table clocksource: mct: Add missing semicolons in exynos_mct.c ARM: EXYNOS: move mct driver to drivers/clocksource ARM: EXYNOS: remove static io-remapping of mct registers for Exynos5 ARM: dts: add mct device tree node for all supported Exynos SoC's ARM: EXYNOS: allow dt based discovery of mct controller using clocksource_of_init ARM: EXYNOS: add device tree support for MCT controller driver ARM: EXYNOS: prepare an array of MCT interrupt numbers and use it ARM: EXYNOS: add a register base address variable in mct controller driver Conflicts: drivers/clocksource/Makefile drivers/clocksource/exynos_mct.c [arnd: adapt to CLOCKSOURCE_OF_DECLARE interface change] Signed-off-by: Arnd Bergmann --- 228e3023eb0430b4b9ed0736f8f87c96a6cd9c7a diff --cc drivers/clocksource/Makefile index e74c8ce,1c1b15d..cd1f09c --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@@ -19,7 -19,7 +19,8 @@@ obj-$(CONFIG_ARCH_BCM2835) += bcm2835_t obj-$(CONFIG_SUNXI_TIMER) += sunxi_timer.o obj-$(CONFIG_ARCH_TEGRA) += tegra20_timer.o obj-$(CONFIG_VT8500_TIMER) += vt8500_timer.o - obj-$(CONFIG_CADENCE_TTC_TIMER) += cadence_ttc_timer.o ++obj-$(CONFIG_CADENCE_TTC_TIMER) += cadence_ttc_timer.o + obj-$(CONFIG_CLKSRC_EXYNOS_MCT) += exynos_mct.o obj-$(CONFIG_ARM_ARCH_TIMER) += arm_arch_timer.o obj-$(CONFIG_CLKSRC_METAG_GENERIC) += metag_generic.o diff --cc drivers/clocksource/exynos_mct.c index c9d6650,d3f1327..957af86 --- a/drivers/clocksource/exynos_mct.c +++ b/drivers/clocksource/exynos_mct.c @@@ -445,13 -477,17 +477,17 @@@ static struct local_timer_ops exynos4_m }; #endif /* CONFIG_LOCAL_TIMERS */ - static void __init exynos4_timer_resources(void) -static void __init exynos4_timer_resources(struct device_node *np) ++static void __init exynos4_timer_resources(void __iomem *base) { struct clk *mct_clk; mct_clk = clk_get(NULL, "xtal"); clk_rate = clk_get_rate(mct_clk); - reg_base = np ? of_iomap(np, 0) : S5P_VA_SYSTIMER; ++ reg_base = base; + if (!reg_base) + panic("%s: unable to ioremap mct address space\n", __func__); + #ifdef CONFIG_LOCAL_TIMERS if (mct_int_type == MCT_INT_PPI) { int err; @@@ -467,19 -503,49 +503,54 @@@ #endif /* CONFIG_LOCAL_TIMERS */ } - void __init exynos4_timer_init(void) -static const struct of_device_id exynos_mct_ids[] = { - { .compatible = "samsung,exynos4210-mct", .data = (void *)MCT_INT_SPI }, - { .compatible = "samsung,exynos4412-mct", .data = (void *)MCT_INT_PPI }, - { } -}; - + void __init mct_init(void) { - if (soc_is_exynos5440()) { - arch_timer_of_register(); - return; - struct device_node *np = NULL; - const struct of_device_id *match; - u32 nr_irqs, i; - -#ifdef CONFIG_OF - np = of_find_matching_node_and_match(NULL, exynos_mct_ids, &match); -#endif - if (np) { - mct_int_type = (u32)(match->data); - - /* This driver uses only one global timer interrupt */ - mct_irqs[MCT_G0_IRQ] = irq_of_parse_and_map(np, MCT_G0_IRQ); - - /* - * Find out the number of local irqs specified. The local - * timer irqs are specified after the four global timer - * irqs are specified. - */ -#ifdef CONFIG_OF - nr_irqs = of_irq_count(np); -#endif - for (i = MCT_L0_IRQ; i < nr_irqs; i++) - mct_irqs[i] = irq_of_parse_and_map(np, i); - } else if (soc_is_exynos4210()) { ++ if (soc_is_exynos4210()) { + mct_irqs[MCT_G0_IRQ] = EXYNOS4_IRQ_MCT_G0; + mct_irqs[MCT_L0_IRQ] = EXYNOS4_IRQ_MCT_L0; + mct_irqs[MCT_L1_IRQ] = EXYNOS4_IRQ_MCT_L1; + mct_int_type = MCT_INT_SPI; + } else { + panic("unable to determine mct controller type\n"); } - if ((soc_is_exynos4210()) || (soc_is_exynos5250())) - mct_int_type = MCT_INT_SPI; - else - mct_int_type = MCT_INT_PPI; - exynos4_timer_resources(np); ++ exynos4_timer_resources(S5P_VA_SYSTIMER); + exynos4_clocksource_init(); + exynos4_clockevent_init(); + } -CLOCKSOURCE_OF_DECLARE(exynos4210, "samsung,exynos4210-mct", mct_init); -CLOCKSOURCE_OF_DECLARE(exynos4412, "samsung,exynos4412-mct", mct_init); + - exynos4_timer_resources(); ++static void __init mct_init_dt(struct device_node *np, unsigned int int_type) ++{ ++ u32 nr_irqs, i; ++ ++ mct_int_type = int_type; ++ ++ /* This driver uses only one global timer interrupt */ ++ mct_irqs[MCT_G0_IRQ] = irq_of_parse_and_map(np, MCT_G0_IRQ); ++ ++ /* ++ * Find out the number of local irqs specified. The local ++ * timer irqs are specified after the four global timer ++ * irqs are specified. ++ */ ++ nr_irqs = of_irq_count(np); ++ for (i = MCT_L0_IRQ; i < nr_irqs; i++) ++ mct_irqs[i] = irq_of_parse_and_map(np, i); ++ ++ exynos4_timer_resources(of_iomap(np, 0)); + exynos4_clocksource_init(); + exynos4_clockevent_init(); +} ++ ++ ++static void __init mct_init_spi(struct device_node *np) ++{ ++ return mct_init_dt(np, MCT_INT_SPI); ++} ++ ++static void __init mct_init_ppi(struct device_node *np) ++{ ++ return mct_init_dt(np, MCT_INT_PPI); ++} ++CLOCKSOURCE_OF_DECLARE(exynos4210, "samsung,exynos4210-mct", mct_init_spi); ++CLOCKSOURCE_OF_DECLARE(exynos4412, "samsung,exynos4412-mct", mct_init_ppi);