[PATCH 2/4] ARM: sti: stih410-clocks: Identify critical clocks as always-on
STALE4202d
From: Lee Jones <hidden>
Date: 2015-02-27 21:23:31
Also in:
linux-devicetree, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
Revision v1 of 4 in this series.
Revisions (4)
- v1 current
- v5 [diff vs current]
- v6 [diff vs current]
- v7 [diff vs current]
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 in order to prevent the common clk framework from trying to turn them 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 <redacted> --- 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..7b257c2 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"; + clock-always-on = "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"; + + clock-always-on = "clk-ic-lmi0"; }; };
@@ -142,6 +145,7 @@ clocks = <&clk_sysin>; clock-output-names = "clk-s-c0-pll0-odf-0"; + clock-always-on = "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"; + + clock-always-on = "clk-icn-cpu", + "clk-tx-icn-dmu", + "clk-ext2fa9", + "clk-icn-lmi", + "clk-icn-sbc"; }; };
--
1.9.1