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From: Lee Jones <lee.jones@linaro.org>
To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: lee.jones@linaro.org, kernel@stlinux.com, mturquette@linaro.org,
	sboyd@codeaurora.org, devicetree@vger.kernel.org
Subject: [PATCH v2 2/4] ARM: sti: stih407-family: Provide Clock Domain information
Date: Wed, 18 Feb 2015 16:14:59 +0000	[thread overview]
Message-ID: <1424276101-30137-3-git-send-email-lee.jones@linaro.org> (raw)
In-Reply-To: <1424276101-30137-1-git-send-email-lee.jones@linaro.org>

Certain clocks should not be turned of by clk_disable_unused.  Until
now we have been using the kernel command-line of the same name to
prevent common clk from turning off all clocks without a reference,
as this would ensure hardware lockup.  This patch lists each clock
which need to stay on to prevent the aforementioned issue from
arising.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 arch/arm/boot/dts/stih407-family.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
index 3e31d32..49af509 100644
--- a/arch/arm/boot/dts/stih407-family.dtsi
+++ b/arch/arm/boot/dts/stih407-family.dtsi
@@ -34,6 +34,19 @@
 		reg = <0x08761000 0x1000>, <0x08760100 0x100>;
 	};
 
+	clk-domain {
+		compatible = "always-on-clk-domain";
+		clocks = <&clk_s_c0_flexgen CLK_EXT2F_A9>,
+			 <&clk_s_c0_flexgen CLK_COMPO_DVP>,
+			 <&clk_s_c0_flexgen CLK_MMC_1>,
+			 <&clk_s_c0_flexgen CLK_ICN_SBC>,
+			 <&clk_s_c0_flexgen CLK_ICN_LMI>,
+			 <&clk_s_c0_flexgen CLK_ICN_CPU>,
+			 <&clk_s_c0_flexgen CLK_TX_ICN_DMU>,
+			 <&clk_s_a0_flexgen CLK_IC_LMI0>,
+			 <&clk_m_a9>;
+	};
+
 	scu@08760000 {
 		compatible = "arm,cortex-a9-scu";
 		reg = <0x08760000 0x1000>;
-- 
1.9.1

  parent reply	other threads:[~2015-02-18 16:14 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-18 16:14 (unknown), Lee Jones
2015-02-18 16:14 ` [PATCH v2 1/4] ARM: sti: stih407-family: Supply defines for CLOCKGEN A0 Lee Jones
2015-02-18 16:14 ` Lee Jones [this message]
     [not found] ` <1424276101-30137-1-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-02-18 16:15   ` [PATCH v2 3/4] clk: Provide an always-on clock domain framework Lee Jones
2015-02-23 10:34     ` [STLinux Kernel] " Peter Griffin
2015-02-23 17:23     ` Mike Turquette
2015-02-24 11:04       ` Lee Jones
2015-02-25 15:24       ` Rob Herring
     [not found]         ` <CAL_Jsq+N4D8fUCwrYwxLaRpbhsgi5eZy5cLpsSmp8VoTQZUqow-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-02-25 15:48           ` Lee Jones
2015-02-25 18:26             ` Mike Turquette
2015-02-25 18:23         ` Mike Turquette
2015-02-18 16:15 ` [PATCH v2 4/4] clk: dt: Introduce always-on clock domain documentation Lee Jones
     [not found]   ` <1424276101-30137-5-git-send-email-lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2015-02-18 16:54     ` Rob Herring
2015-02-18 17:12       ` Lee Jones
2015-02-18 18:50         ` Rob Herring
2015-02-18 21:54           ` Lee Jones
2015-02-18 23:45             ` Rob Herring
2015-02-19 10:05               ` Lee Jones
2015-02-19  9:27             ` Geert Uytterhoeven
2015-02-19  9:42               ` Lee Jones
2015-02-19  9:55                 ` Geert Uytterhoeven
     [not found]                   ` <CAMuHMdW+np0_zUhBOXVBN_7ztM5Z=xN5-mE-P_wR35BggQxerQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-02-19 10:11                     ` Lee Jones
2015-02-19 10:18                       ` Geert Uytterhoeven
     [not found]                         ` <CAMuHMdW=kV+zx=Uq7y7SyrH3eQyWsdfWjuLFMAKQjPhX-QaPPA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-02-19 10:28                           ` Lee Jones
2015-02-19 10:35                             ` Geert Uytterhoeven
2015-02-19 10:43                               ` Lee Jones
2015-02-19 11:01                                 ` Geert Uytterhoeven
2015-02-19 11:13                                   ` Lee Jones
2015-02-19 16:53                                     ` Rob Herring

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