diff options
Diffstat (limited to 'arch/arm/mach-spear/time.c')
| -rw-r--r-- | arch/arm/mach-spear/time.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/arch/arm/mach-spear/time.c b/arch/arm/mach-spear/time.c index 289e036c9c30..5371c824786d 100644 --- a/arch/arm/mach-spear/time.c +++ b/arch/arm/mach-spear/time.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * arch/arm/plat-spear/time.c * * Copyright (C) 2010 ST Microelectronics * Shiraz Hashim<shiraz.linux.kernel@gmail.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #include <linux/clk.h> @@ -93,7 +90,7 @@ static void __init spear_clocksource_init(void) 200, 16, clocksource_mmio_readw_up); } -static inline void timer_shutdown(struct clock_event_device *evt) +static inline void spear_timer_shutdown(struct clock_event_device *evt) { u16 val = readw(gpt_base + CR(CLKEVT)); @@ -104,7 +101,7 @@ static inline void timer_shutdown(struct clock_event_device *evt) static int spear_shutdown(struct clock_event_device *evt) { - timer_shutdown(evt); + spear_timer_shutdown(evt); return 0; } @@ -114,7 +111,7 @@ static int spear_set_oneshot(struct clock_event_device *evt) u16 val; /* stop the timer */ - timer_shutdown(evt); + spear_timer_shutdown(evt); val = readw(gpt_base + CR(CLKEVT)); val |= CTRL_ONE_SHOT; @@ -129,7 +126,7 @@ static int spear_set_periodic(struct clock_event_device *evt) u16 val; /* stop the timer */ - timer_shutdown(evt); + spear_timer_shutdown(evt); period = clk_get_rate(gpt_clk) / HZ; period >>= CTRL_PRESCALER16; @@ -181,12 +178,6 @@ static irqreturn_t spear_timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction spear_timer_irq = { - .name = "timer", - .flags = IRQF_TIMER, - .handler = spear_timer_interrupt -}; - static void __init spear_clockevent_init(int irq) { u32 tick_rate; @@ -201,7 +192,8 @@ static void __init spear_clockevent_init(int irq) clockevents_config_and_register(&clkevt, tick_rate, 3, 0xfff0); - setup_irq(irq, &spear_timer_irq); + if (request_irq(irq, spear_timer_interrupt, IRQF_TIMER, "timer", NULL)) + pr_err("Failed to request irq %d (timer)\n", irq); } static const struct of_device_id timer_of_match[] __initconst = { @@ -223,13 +215,13 @@ void __init spear_setup_of_timer(void) irq = irq_of_parse_and_map(np, 0); if (!irq) { pr_err("%s: No irq passed for timer via DT\n", __func__); - return; + goto err_put_np; } gpt_base = of_iomap(np, 0); if (!gpt_base) { pr_err("%s: of iomap failed\n", __func__); - return; + goto err_put_np; } gpt_clk = clk_get_sys("gpt0", NULL); @@ -244,6 +236,8 @@ void __init spear_setup_of_timer(void) goto err_prepare_enable_clk; } + of_node_put(np); + spear_clockevent_init(irq); spear_clocksource_init(); @@ -253,4 +247,6 @@ err_prepare_enable_clk: clk_put(gpt_clk); err_iomap: iounmap(gpt_base); +err_put_np: + of_node_put(np); } |