diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2016-07-07 15:41:13 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2016-07-07 15:41:13 +0200 |
commit | 3d93f42d449ace8e2dd8e2ec9790fdce31a14c9c (patch) | |
tree | 16abfc89c51a2cf0116eb692a591faf897e04297 /drivers/clocksource/qcom-timer.c | |
parent | 4b4b20852d1009c5e8bc357b22353b62e3a241c7 (diff) | |
parent | 34c720a915857f168b98ab03f97b33784286e4ad (diff) |
Merge branch 'clockevents/4.8' of http://git.linaro.org/people/daniel.lezcano/linux into timers/core
Pull the clockevents/clocksource tree from Daniel Lezcano:
- Convert the clocksource-probe init functions to return a value in order to
prepare the consolidation of the drivers using the DT. It is a big patchset
but went through 01.org (kbuild bot), linux next and kernel-ci (continuous
integration) (Daniel Lezcano)
- Fix a bad error handling by returning the right value for cadence_ttc
(Christophe Jaillet)
- Fix typo in the Kconfig for the Samsung pwm (Alexandre Belloni)
- Change functions to static for armada-370-xp and digicolor (Ben Dooks)
- Add support for the rk3399 SoC timer by adding bindings and a slight
change in the base address. Take the opportunity to add the DYNIRQ flag
(Huang Tao)
- Fix endian accessors for the Samsung pwm timer (Matthew Leach)
- Add Oxford Semiconductor RPS Dual Timer driver (Neil Armstrong)
- Add a kernel parameter to swich on/off the event stream feature of the arch
arm timer (Will Deacon)
Diffstat (limited to 'drivers/clocksource/qcom-timer.c')
-rw-r--r-- | drivers/clocksource/qcom-timer.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/clocksource/qcom-timer.c b/drivers/clocksource/qcom-timer.c index f8e09f923651..662576339049 100644 --- a/drivers/clocksource/qcom-timer.c +++ b/drivers/clocksource/qcom-timer.c @@ -178,7 +178,7 @@ static struct delay_timer msm_delay_timer = { .read_current_timer = msm_read_current_timer, }; -static void __init msm_timer_init(u32 dgt_hz, int sched_bits, int irq, +static int __init msm_timer_init(u32 dgt_hz, int sched_bits, int irq, bool percpu) { struct clocksource *cs = &msm_clocksource; @@ -218,12 +218,14 @@ err: sched_clock_register(msm_sched_clock_read, sched_bits, dgt_hz); msm_delay_timer.freq = dgt_hz; register_current_timer_delay(&msm_delay_timer); + + return res; } -static void __init msm_dt_timer_init(struct device_node *np) +static int __init msm_dt_timer_init(struct device_node *np) { u32 freq; - int irq; + int irq, ret; struct resource res; u32 percpu_offset; void __iomem *base; @@ -232,34 +234,35 @@ static void __init msm_dt_timer_init(struct device_node *np) base = of_iomap(np, 0); if (!base) { pr_err("Failed to map event base\n"); - return; + return -ENXIO; } /* We use GPT0 for the clockevent */ irq = irq_of_parse_and_map(np, 1); if (irq <= 0) { pr_err("Can't get irq\n"); - return; + return -EINVAL; } /* We use CPU0's DGT for the clocksource */ if (of_property_read_u32(np, "cpu-offset", &percpu_offset)) percpu_offset = 0; - if (of_address_to_resource(np, 0, &res)) { + ret = of_address_to_resource(np, 0, &res); + if (ret) { pr_err("Failed to parse DGT resource\n"); - return; + return ret; } cpu0_base = ioremap(res.start + percpu_offset, resource_size(&res)); if (!cpu0_base) { pr_err("Failed to map source base\n"); - return; + return -EINVAL; } if (of_property_read_u32(np, "clock-frequency", &freq)) { pr_err("Unknown frequency\n"); - return; + return -EINVAL; } event_base = base + 0x4; @@ -268,7 +271,7 @@ static void __init msm_dt_timer_init(struct device_node *np) freq /= 4; writel_relaxed(DGT_CLK_CTL_DIV_4, source_base + DGT_CLK_CTL); - msm_timer_init(freq, 32, irq, !!percpu_offset); + return msm_timer_init(freq, 32, irq, !!percpu_offset); } CLOCKSOURCE_OF_DECLARE(kpss_timer, "qcom,kpss-timer", msm_dt_timer_init); CLOCKSOURCE_OF_DECLARE(scss_timer, "qcom,scss-timer", msm_dt_timer_init); |