From 0821c3bc5df805aef1f5989b7a7dacc2491a0e5b Mon Sep 17 00:00:00 2001 From: Dmitry Eremin-Solenikov Date: Wed, 3 Dec 2014 18:37:10 +0100 Subject: [PATCH] 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 Signed-off-by: Russell King --- drivers/pcmcia/soc_common.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c index a2bc6ee1702e..933f4657515b 100644 --- a/drivers/pcmcia/soc_common.c +++ b/drivers/pcmcia/soc_common.c @@ -120,6 +120,8 @@ static void __soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt, if (skt->ops->hw_shutdown) skt->ops->hw_shutdown(skt); + + clk_disable_unprepare(skt->clk); } static void soc_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) @@ -131,6 +133,8 @@ static int soc_pcmcia_hw_init(struct soc_pcmcia_socket *skt) { int ret = 0, i; + clk_prepare_enable(skt->clk); + if (skt->ops->hw_init) { ret = skt->ops->hw_init(skt); if (ret)