ARM: 8245/1: pcmcia: soc-common: enable/disable socket clocks
Call clk_prepare_enable() during hw_init() and clk_disable_unprepare() during hw_shutdown() to ensure that the clock rates returned by clk_get_rate() are correct. It is safe to call enable/disable functions even on NULL clock, so this patch will not break cases when the socket clock is not set. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -120,6 +120,8 @@ static void __soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt,
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if (skt->ops->hw_shutdown)
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skt->ops->hw_shutdown(skt);
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clk_disable_unprepare(skt->clk);
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}
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static void soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt)
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@ -131,6 +133,8 @@ static int soc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
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{
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int ret = 0, i;
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clk_prepare_enable(skt->clk);
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if (skt->ops->hw_init) {
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ret = skt->ops->hw_init(skt);
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if (ret)
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