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author | Thomas Gleixner <tglx@linutronix.de> | 2016-07-07 13:41:13 (GMT) |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2016-07-07 13:41:13 (GMT) |
commit | 3d93f42d449ace8e2dd8e2ec9790fdce31a14c9c (patch) | |
tree | 16abfc89c51a2cf0116eb692a591faf897e04297 /drivers/clocksource/mips-gic-timer.c | |
parent | 4b4b20852d1009c5e8bc357b22353b62e3a241c7 (diff) | |
parent | 34c720a915857f168b98ab03f97b33784286e4ad (diff) | |
download | linux-3d93f42d449ace8e2dd8e2ec9790fdce31a14c9c.tar.xz |
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/mips-gic-timer.c')
-rw-r--r-- | drivers/clocksource/mips-gic-timer.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c index 89d3e4d..1572c7a 100644 --- a/drivers/clocksource/mips-gic-timer.c +++ b/drivers/clocksource/mips-gic-timer.c @@ -146,7 +146,7 @@ static struct clocksource gic_clocksource = { .archdata = { .vdso_clock_mode = VDSO_CLOCK_GIC }, }; -static void __init __gic_clocksource_init(void) +static int __init __gic_clocksource_init(void) { int ret; @@ -159,6 +159,8 @@ static void __init __gic_clocksource_init(void) ret = clocksource_register_hz(&gic_clocksource, gic_frequency); if (ret < 0) pr_warn("GIC: Unable to register clocksource\n"); + + return ret; } void __init gic_clocksource_init(unsigned int frequency) @@ -179,31 +181,35 @@ static void __init gic_clocksource_of_init(struct device_node *node) struct clk *clk; int ret; - if (WARN_ON(!gic_present || !node->parent || - !of_device_is_compatible(node->parent, "mti,gic"))) - return; + if (!gic_present || !node->parent || + !of_device_is_compatible(node->parent, "mti,gic")) { + pr_warn("No DT definition for the mips gic driver"); + return -ENXIO; + } clk = of_clk_get(node, 0); if (!IS_ERR(clk)) { if (clk_prepare_enable(clk) < 0) { pr_err("GIC failed to enable clock\n"); clk_put(clk); - return; + return PTR_ERR(clk); } gic_frequency = clk_get_rate(clk); } else if (of_property_read_u32(node, "clock-frequency", &gic_frequency)) { pr_err("GIC frequency not specified.\n"); - return; + return -EINVAL;; } gic_timer_irq = irq_of_parse_and_map(node, 0); if (!gic_timer_irq) { pr_err("GIC timer IRQ not specified.\n"); - return; + return -EINVAL;; } - __gic_clocksource_init(); + ret = __gic_clocksource_init(); + if (ret) + return ret; ret = gic_clockevent_init(); if (!ret && !IS_ERR(clk)) { @@ -213,6 +219,8 @@ static void __init gic_clocksource_of_init(struct device_node *node) /* And finally start the counter */ gic_start_count(); + + return 0; } CLOCKSOURCE_OF_DECLARE(mips_gic_timer, "mti,gic-timer", gic_clocksource_of_init); |