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CLOCKSOURCE: mips-gic: Enable the clock before using it
For the clock to be used (e.g. get its rate through clk_get_rate) it should be prepared and enabled first. Also, while the clock is enabled the driver must hold a reference to it, so let's remove the call to clk_put. Reviewed-by: Andrew Bresticker <abrestic@chromium.org> Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Cc: James Hartley <James.Hartley@imgtec.com> Cc: Govindraj Raja <Govindraj.Raja@imgtec.com> Cc: Damien Horsley <Damien.Horsley@imgtec.com> Cc: James Hogan <James.Hogan@imgtec.com> Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Patchwork: https://patchwork.linux-mips.org/patch/10779/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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@ -158,8 +158,13 @@ static void __init gic_clocksource_of_init(struct device_node *node)
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clk = of_clk_get(node, 0);
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if (!IS_ERR(clk)) {
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if (clk_prepare_enable(clk) < 0) {
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pr_err("GIC failed to enable clock\n");
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clk_put(clk);
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return;
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}
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gic_frequency = clk_get_rate(clk);
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clk_put(clk);
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} else if (of_property_read_u32(node, "clock-frequency",
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&gic_frequency)) {
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pr_err("GIC frequency not specified.\n");
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