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Handle failure to enable the clock or obtain its frequency.

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This commit is contained in:
Ian Lepore 2019-06-15 16:59:03 +00:00
parent 1bf4afc527
commit 4d7ef8a2be
1 changed files with 8 additions and 0 deletions
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8
sys/arm/allwinner/aw_pwm.c
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@ -150,8 +150,16 @@ aw_pwm_attach(device_t dev)
goto fail;
}
error = clk_enable(sc->clk);
if (error != 0) {
device_printf(dev, "cannot enable clock\n");
goto fail;
}
error = clk_get_freq(sc->clk, &sc->clk_freq);
if (error != 0) {
device_printf(dev, "cannot get clock frequency\n");
goto fail;
}
if (bus_alloc_resources(dev, aw_pwm_spec, &sc->res) != 0) {
device_printf(dev, "cannot allocate resources for device\n");