linux-kernel - [PATCH V4 4/6] ARM: dts: AM33XX: add clock nodes for CPU

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Message-ID: <1365807278-554-5-git-send-email-nm@ti.com>
Date:	Fri, 12 Apr 2013 17:54:36 -0500
From:	Nishanth Menon <nm@...com>
To:	<linux-omap@...r.kernel.org>
CC:	<devicetree-discuss@...ts.ozlabs.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	Benoît Cousson <b-cousson@...com>,
	Tony Lindgren <tony@...mide.com>,
	Paul Walmsley <paul@...an.com>,
	Kevin Hilman <khilman@...prootsystems.com>,
	Mike Turquette <mturquette@...aro.org>,
	Nishanth Menon <nm@...com>
Subject: [PATCH V4 4/6] ARM: dts: AM33XX: add clock nodes for CPU

AM33XX based platforms use dpll_mpu clock. Add same to common dtsi
and remove the dummy clock node entry as AM33XX platform supports
only device tree based boot.

Cc: Benoit Cousson <b-cousson@...com>
Cc: Kevin Hilman <khilman@...prootsystems.com>
Cc: Paul Walmsley <paul@...an.com>
Cc: Tony Lindgren <tony@...mide.com>
Signed-off-by: Nishanth Menon <nm@...com>
---
RFC of this patch was discussed in http://marc.info/?t=136370325600009&r=1&w=2
along with the detailed context as to why this is an intermediate step.

previous revisions of cpufreq-cpu0 support do not use this approach.

[Probably belongs to Benoit/Tony/Paul tree?]

 arch/arm/boot/dts/am33xx.dtsi         |    7 +++++++
 arch/arm/mach-omap2/cclock33xx_data.c |    1 -
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index df62830..3aed044 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -42,6 +42,8 @@
 				275000  1125000
 			>;
 			voltage-tolerance = <2>; /* 2 percentage */
+			clocks = <&dpll_mpu>;
+			clock-names = "cpu";
 			clock-latency = <300000>; /* From omap-cpufreq driver */
 		};
 	};
@@ -89,6 +91,11 @@
 			reg = <0x48200000 0x1000>;
 		};
 
+		dpll_mpu: dpll_mpu {
+			#clock-cells = <0>;
+			compatible = "ti,omap-clock";
+		};
+
 		gpio0: gpio@...07000 {
 			compatible = "ti,omap4-gpio";
 			ti,hwmods = "gpio1";
diff --git a/arch/arm/mach-omap2/cclock33xx_data.c b/arch/arm/mach-omap2/cclock33xx_data.c
index 7f091c8..8be6832 100644
--- a/arch/arm/mach-omap2/cclock33xx_data.c
+++ b/arch/arm/mach-omap2/cclock33xx_data.c
@@ -852,7 +852,6 @@ static struct omap_clk am33xx_clks[] = {
 	CLK(NULL,	"dpll_core_m5_ck",	&dpll_core_m5_ck,	CK_AM33XX),
 	CLK(NULL,	"dpll_core_m6_ck",	&dpll_core_m6_ck,	CK_AM33XX),
 	CLK(NULL,	"dpll_mpu_ck",		&dpll_mpu_ck,	CK_AM33XX),
-	CLK("cpu0",	NULL,			&dpll_mpu_ck,	CK_AM33XX),
 	CLK(NULL,	"dpll_mpu_m2_ck",	&dpll_mpu_m2_ck,	CK_AM33XX),
 	CLK(NULL,	"dpll_ddr_ck",		&dpll_ddr_ck,	CK_AM33XX),
 	CLK(NULL,	"dpll_ddr_m2_ck",	&dpll_ddr_m2_ck,	CK_AM33XX),
-- 
1.7.9.5

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