ARM: dts: stih407-clocks: Identify critical clocks
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 STiH407 development board unserviceable. Signed-off-by: Peter Griffin <peter.griffin@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com>
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@ -101,6 +101,7 @@
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clocks = <&clk_sysin>;
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clocks = <&clk_sysin>;
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clock-output-names = "clk-s-a0-pll-ofd-0";
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clock-output-names = "clk-s-a0-pll-ofd-0";
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clock-critical = <0>; /* clk-s-a0-pll-ofd-0 */
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};
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};
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clk_s_a0_flexgen: clk-s-a0-flexgen {
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clk_s_a0_flexgen: clk-s-a0-flexgen {
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@ -112,6 +113,7 @@
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<&clk_sysin>;
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<&clk_sysin>;
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clock-output-names = "clk-ic-lmi0";
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clock-output-names = "clk-ic-lmi0";
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clock-critical = <CLK_IC_LMI0>;
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};
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};
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};
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};
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@ -126,6 +128,7 @@
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"clk-s-c0-fs0-ch1",
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"clk-s-c0-fs0-ch1",
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"clk-s-c0-fs0-ch2",
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"clk-s-c0-fs0-ch2",
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"clk-s-c0-fs0-ch3";
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"clk-s-c0-fs0-ch3";
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clock-critical = <0>; /* clk-s-c0-fs0-ch0 */
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};
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};
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clk_s_c0: clockgen-c@09103000 {
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clk_s_c0: clockgen-c@09103000 {
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@ -139,6 +142,7 @@
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clocks = <&clk_sysin>;
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clocks = <&clk_sysin>;
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clock-output-names = "clk-s-c0-pll0-odf-0";
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clock-output-names = "clk-s-c0-pll0-odf-0";
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clock-critical = <0>; /* clk-s-c0-pll0-odf-0 */
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};
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};
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clk_s_c0_pll1: clk-s-c0-pll1 {
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clk_s_c0_pll1: clk-s-c0-pll1 {
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@ -194,6 +198,12 @@
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"clk-main-disp",
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"clk-main-disp",
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"clk-aux-disp",
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"clk-aux-disp",
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"clk-compo-dvp";
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"clk-compo-dvp";
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clock-critical = <CLK_PROC_STFE>,
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<CLK_ICN_CPU>,
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<CLK_TX_ICN_DMU>,
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<CLK_EXT2F_A9>,
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<CLK_ICN_LMI>,
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<CLK_ICN_SBC>;
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};
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};
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};
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};
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