From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Griffin Subject: [PATCH] ARM: sti: stih410-clocks: Add PROC_STFE as a critical clock Date: Tue, 18 Oct 2016 16:35:57 +0100 Message-ID: <1476804957-24000-1-git-send-email-peter.griffin@linaro.org> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, kernel-F5mvAk5X5gdBDgjK7y7TUQ@public.gmane.org, patrice.chotard-qxv4g6HH51o@public.gmane.org Cc: peter.griffin-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org Once the ST frontend demux HW IP has been enabled, the clock can't be disabled otherwise the system will hang and the board will be unserviceable. To allow balanced clock enable/disable calls in the driver we use the critical clock infrastructure to take an extra reference on the clock so the clock will never actually be disabled. Signed-off-by: Peter Griffin --- arch/arm/boot/dts/stih410-clock.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/stih410-clock.dtsi b/arch/arm/boot/dts/stih410-clock.dtsi index 8598eff..07c8ef9 100644 --- a/arch/arm/boot/dts/stih410-clock.dtsi +++ b/arch/arm/boot/dts/stih410-clock.dtsi @@ -208,7 +208,8 @@ "clk-clust-hades", "clk-hwpe-hades", "clk-fc-hades"; - clock-critical = , + clock-critical = , + , , , , -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html