lkml.org 
[lkml]   [2015]   [Jul]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v7 2/5] ARM: sti: stih410-clocks: Identify critical clocks
Date
Lots of platforms contain clocks which if turned off would prove fatal.
The only way to recover is to restart the board(s). This driver takes
references to clocks which are required to be always-on. The Common
Clk Framework will then take references to them. This way they will
not be turned off during the clk_disabled_unused() procedure.

In this patch we are identifying clocks, which if gated would render
the STiH410 development board unserviceable.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
arch/arm/boot/dts/stih410-clock.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/stih410-clock.dtsi b/arch/arm/boot/dts/stih410-clock.dtsi
index 6b5803a..0a72c56 100644
--- a/arch/arm/boot/dts/stih410-clock.dtsi
+++ b/arch/arm/boot/dts/stih410-clock.dtsi
@@ -103,6 +103,7 @@
clocks = <&clk_sysin>;

clock-output-names = "clk-s-a0-pll-ofd-0";
+ critical-clock = <0>; /* clk-s-a0-pll-ofd-0 */
};

clk_s_a0_flexgen: clk-s-a0-flexgen {
@@ -115,6 +116,8 @@

clock-output-names = "clk-ic-lmi0",
"clk-ic-lmi1";
+
+ critical-clock = <CLK_IC_LMI0>;
};
};

@@ -142,6 +145,7 @@
clocks = <&clk_sysin>;

clock-output-names = "clk-s-c0-pll0-odf-0";
+ critical-clock = <0>; /* clk-s-c0-pll0-odf-0 */
};

clk_s_c0_pll1: clk-s-c0-pll1 {
@@ -204,6 +208,12 @@
"clk-clust-hades",
"clk-hwpe-hades",
"clk-fc-hades";
+
+ critical-clock = <CLK_ICN_CPU>,
+ <CLK_TX_ICN_DMU>,
+ <CLK_EXT2F_A9>,
+ <CLK_ICN_LMI>,
+ <CLK_ICN_SBC>;
};
};

--
1.9.1


\
 
 \ /
  Last update: 2015-07-22 15:21    [W:0.232 / U:1.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site