linux-kernel - [PATCH v2 3/4] ARM: dts: am33xx-clocks: add spread spectrum support

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Message-Id: <20210318172627.12173-4-dariobin@libero.it>
Date:   Thu, 18 Mar 2021 18:26:25 +0100
From:   Dario Binacchi <dariobin@...ero.it>
To:     linux-kernel@...r.kernel.org
Cc:     Dario Binacchi <dariobin@...ero.it>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Benoît Cousson <bcousson@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Tony Lindgren <tony@...mide.com>, devicetree@...r.kernel.org,
        linux-omap@...r.kernel.org
Subject: [PATCH v2 3/4] ARM: dts: am33xx-clocks: add spread spectrum support

Registers for adjusting the spread spectrum clocking (SSC) have been
added. As reported by the TI spruh73x RM, SSC is supported only for
LCD and MPU PLLs.

Signed-off-by: Dario Binacchi <dariobin@...ero.it>

---

Changes in v2:
- Remove SSC registers from dpll_core_ck@490 node (SSC is not supported)
- Add SSC registers to dpll_mpu_ck@488 node.

 arch/arm/boot/dts/am33xx-clocks.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/am33xx-clocks.dtsi b/arch/arm/boot/dts/am33xx-clocks.dtsi
index dced92a8970e..a02e0b1229a4 100644
--- a/arch/arm/boot/dts/am33xx-clocks.dtsi
+++ b/arch/arm/boot/dts/am33xx-clocks.dtsi
@@ -204,7 +204,7 @@
 		#clock-cells = <0>;
 		compatible = "ti,am3-dpll-clock";
 		clocks = <&sys_clkin_ck>, <&sys_clkin_ck>;
-		reg = <0x0488>, <0x0420>, <0x042c>;
+		reg = <0x0488>, <0x0420>, <0x042c>, <0x0424>, <0x0428>;
 	};
 
 	dpll_mpu_m2_ck: dpll_mpu_m2_ck@4a8 {
@@ -244,7 +244,7 @@
 		#clock-cells = <0>;
 		compatible = "ti,am3-dpll-no-gate-clock";
 		clocks = <&sys_clkin_ck>, <&sys_clkin_ck>;
-		reg = <0x0498>, <0x0448>, <0x0454>;
+		reg = <0x0498>, <0x0448>, <0x0454>, <0x044c>, <0x0450>;
 	};
 
 	dpll_disp_m2_ck: dpll_disp_m2_ck@4a4 {
-- 
2.17.1