diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
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committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
commit | d0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch) | |
tree | 7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /drivers/clocksource/time-pistachio.c | |
parent | e914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff) |
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'drivers/clocksource/time-pistachio.c')
-rw-r--r-- | drivers/clocksource/time-pistachio.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/clocksource/time-pistachio.c b/drivers/clocksource/time-pistachio.c index 376e59bc5..a8e6c7df8 100644 --- a/drivers/clocksource/time-pistachio.c +++ b/drivers/clocksource/time-pistachio.c @@ -148,7 +148,7 @@ static struct pistachio_clocksource pcs_gpt = { }, }; -static void __init pistachio_clksrc_of_init(struct device_node *node) +static int __init pistachio_clksrc_of_init(struct device_node *node) { struct clk *sys_clk, *fast_clk; struct regmap *periph_regs; @@ -158,61 +158,61 @@ static void __init pistachio_clksrc_of_init(struct device_node *node) pcs_gpt.base = of_iomap(node, 0); if (!pcs_gpt.base) { pr_err("cannot iomap\n"); - return; + return -ENXIO; } periph_regs = syscon_regmap_lookup_by_phandle(node, "img,cr-periph"); if (IS_ERR(periph_regs)) { pr_err("cannot get peripheral regmap (%ld)\n", PTR_ERR(periph_regs)); - return; + return PTR_ERR(periph_regs); } /* Switch to using the fast counter clock */ ret = regmap_update_bits(periph_regs, PERIP_TIMER_CONTROL, 0xf, 0x0); if (ret) - return; + return ret; sys_clk = of_clk_get_by_name(node, "sys"); if (IS_ERR(sys_clk)) { pr_err("clock get failed (%ld)\n", PTR_ERR(sys_clk)); - return; + return PTR_ERR(sys_clk); } fast_clk = of_clk_get_by_name(node, "fast"); if (IS_ERR(fast_clk)) { pr_err("clock get failed (%lu)\n", PTR_ERR(fast_clk)); - return; + return PTR_ERR(fast_clk); } ret = clk_prepare_enable(sys_clk); if (ret < 0) { pr_err("failed to enable clock (%d)\n", ret); - return; + return ret; } ret = clk_prepare_enable(fast_clk); if (ret < 0) { pr_err("failed to enable clock (%d)\n", ret); clk_disable_unprepare(sys_clk); - return; + return ret; } rate = clk_get_rate(fast_clk); /* Disable irq's for clocksource usage */ - gpt_writel(&pcs_gpt.base, 0, TIMER_IRQ_MASK, 0); - gpt_writel(&pcs_gpt.base, 0, TIMER_IRQ_MASK, 1); - gpt_writel(&pcs_gpt.base, 0, TIMER_IRQ_MASK, 2); - gpt_writel(&pcs_gpt.base, 0, TIMER_IRQ_MASK, 3); + gpt_writel(pcs_gpt.base, 0, TIMER_IRQ_MASK, 0); + gpt_writel(pcs_gpt.base, 0, TIMER_IRQ_MASK, 1); + gpt_writel(pcs_gpt.base, 0, TIMER_IRQ_MASK, 2); + gpt_writel(pcs_gpt.base, 0, TIMER_IRQ_MASK, 3); /* Enable timer block */ writel(TIMER_ME_GLOBAL, pcs_gpt.base); raw_spin_lock_init(&pcs_gpt.lock); sched_clock_register(pistachio_read_sched_clock, 32, rate); - clocksource_register_hz(&pcs_gpt.cs, rate); + return clocksource_register_hz(&pcs_gpt.cs, rate); } CLOCKSOURCE_OF_DECLARE(pistachio_gptimer, "img,pistachio-gptimer", pistachio_clksrc_of_init); |