From mboxrd@z Thu Jan 1 00:00:00 1970 From: festevam@gmail.com (Fabio Estevam) Date: Tue, 1 Jul 2014 02:55:28 -0300 Subject: [PATCH 4/5] ARM: imx: clk-gate2: Use post decrement for share_count In-Reply-To: <1404194129-25543-1-git-send-email-festevam@gmail.com> References: <1404194129-25543-1-git-send-email-festevam@gmail.com> Message-ID: <1404194129-25543-4-git-send-email-festevam@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Fabio Estevam SSI clocks use the share_count mechanism since SSI and SPDIF share the same clock gate bits. When using the share_count for the SSI clock we notice that it gets disabled due to the usage of pre-decrement operation in the clk_gate2_disable() function. Use the post-decrement operation so that the correct share_count is used and the SSI clock does not get disable when an audio file needs to be played. Signed-off-by: Fabio Estevam --- arch/arm/mach-imx/clk-gate2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/clk-gate2.c b/arch/arm/mach-imx/clk-gate2.c index 4ba587d..463083c 100644 --- a/arch/arm/mach-imx/clk-gate2.c +++ b/arch/arm/mach-imx/clk-gate2.c @@ -67,7 +67,7 @@ static void clk_gate2_disable(struct clk_hw *hw) spin_lock_irqsave(gate->lock, flags); - if (gate->share_count && --(*gate->share_count) > 0) + if (gate->share_count && (*gate->share_count)-- > 0) goto out; reg = readl(gate->reg); -- 1.8.3.2