diff options
author | Ingo Molnar <mingo@kernel.org> | 2016-07-27 12:35:35 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2016-07-27 12:35:35 +0200 |
commit | df15929f8f5c69e987c31bf016eca4a38dba46f0 (patch) | |
tree | cfb5fe5e8ebff4cabd70557a304f355546943cc9 /drivers/clocksource/timer-imx-gpt.c | |
parent | efaad554b4ffae1840a2759e09e21325ddbc8b05 (diff) | |
parent | 37e13a1ebe32c4fbfbdb5413f42eb6e71d8b28a4 (diff) |
Merge branch 'linus' into x86/microcode, to pick up merge window changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/clocksource/timer-imx-gpt.c')
-rw-r--r-- | drivers/clocksource/timer-imx-gpt.c | 51 |
1 files changed, 33 insertions, 18 deletions
diff --git a/drivers/clocksource/timer-imx-gpt.c b/drivers/clocksource/timer-imx-gpt.c index 99ec96769dda..f595460bfc58 100644 --- a/drivers/clocksource/timer-imx-gpt.c +++ b/drivers/clocksource/timer-imx-gpt.c @@ -407,8 +407,10 @@ static const struct imx_gpt_data imx6dl_gpt_data = { .set_next_event = v2_set_next_event, }; -static void __init _mxc_timer_init(struct imx_timer *imxtm) +static int __init _mxc_timer_init(struct imx_timer *imxtm) { + int ret; + switch (imxtm->type) { case GPT_TYPE_IMX1: imxtm->gpt = &imx1_gpt_data; @@ -423,12 +425,12 @@ static void __init _mxc_timer_init(struct imx_timer *imxtm) imxtm->gpt = &imx6dl_gpt_data; break; default: - BUG(); + return -EINVAL; } if (IS_ERR(imxtm->clk_per)) { pr_err("i.MX timer: unable to get clk\n"); - return; + return PTR_ERR(imxtm->clk_per); } if (!IS_ERR(imxtm->clk_ipg)) @@ -446,8 +448,11 @@ static void __init _mxc_timer_init(struct imx_timer *imxtm) imxtm->gpt->gpt_setup_tctl(imxtm); /* init and register the timer to the framework */ - mxc_clocksource_init(imxtm); - mxc_clockevent_init(imxtm); + ret = mxc_clocksource_init(imxtm); + if (ret) + return ret; + + return mxc_clockevent_init(imxtm); } void __init mxc_timer_init(unsigned long pbase, int irq, enum imx_gpt_type type) @@ -469,21 +474,27 @@ void __init mxc_timer_init(unsigned long pbase, int irq, enum imx_gpt_type type) _mxc_timer_init(imxtm); } -static void __init mxc_timer_init_dt(struct device_node *np, enum imx_gpt_type type) +static int __init mxc_timer_init_dt(struct device_node *np, enum imx_gpt_type type) { struct imx_timer *imxtm; static int initialized; + int ret; /* Support one instance only */ if (initialized) - return; + return 0; imxtm = kzalloc(sizeof(*imxtm), GFP_KERNEL); - BUG_ON(!imxtm); + if (!imxtm) + return -ENOMEM; imxtm->base = of_iomap(np, 0); - WARN_ON(!imxtm->base); + if (!imxtm->base) + return -ENXIO; + imxtm->irq = irq_of_parse_and_map(np, 0); + if (imxtm->irq <= 0) + return -EINVAL; imxtm->clk_ipg = of_clk_get_by_name(np, "ipg"); @@ -494,22 +505,26 @@ static void __init mxc_timer_init_dt(struct device_node *np, enum imx_gpt_type imxtm->type = type; - _mxc_timer_init(imxtm); + ret = _mxc_timer_init(imxtm); + if (ret) + return ret; initialized = 1; + + return 0; } -static void __init imx1_timer_init_dt(struct device_node *np) +static int __init imx1_timer_init_dt(struct device_node *np) { - mxc_timer_init_dt(np, GPT_TYPE_IMX1); + return mxc_timer_init_dt(np, GPT_TYPE_IMX1); } -static void __init imx21_timer_init_dt(struct device_node *np) +static int __init imx21_timer_init_dt(struct device_node *np) { - mxc_timer_init_dt(np, GPT_TYPE_IMX21); + return mxc_timer_init_dt(np, GPT_TYPE_IMX21); } -static void __init imx31_timer_init_dt(struct device_node *np) +static int __init imx31_timer_init_dt(struct device_node *np) { enum imx_gpt_type type = GPT_TYPE_IMX31; @@ -522,12 +537,12 @@ static void __init imx31_timer_init_dt(struct device_node *np) if (of_machine_is_compatible("fsl,imx6dl")) type = GPT_TYPE_IMX6DL; - mxc_timer_init_dt(np, type); + return mxc_timer_init_dt(np, type); } -static void __init imx6dl_timer_init_dt(struct device_node *np) +static int __init imx6dl_timer_init_dt(struct device_node *np) { - mxc_timer_init_dt(np, GPT_TYPE_IMX6DL); + return mxc_timer_init_dt(np, GPT_TYPE_IMX6DL); } CLOCKSOURCE_OF_DECLARE(imx1_timer, "fsl,imx1-gpt", imx1_timer_init_dt); |