linux-kernel - [PATCH RFC 5/5] ARM: dts: bcm2166x-common: Add matching bus clocks for peripheral clocks

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Message-Id: <20250216-kona-bus-clock-v1-5-e8779d77a6f2@gmail.com>
Date: Sun, 16 Feb 2025 17:12:40 +0100
From: Artur Weber <aweber.kernel@...il.com>
To: Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, 
 Florian Fainelli <florian.fainelli@...adcom.com>, 
 Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Alex Elder <elder@...nel.org>, 
 Stanislav Jakubek <stano.jakubek@...il.com>, linux-clk@...r.kernel.org, 
 linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 ~postmarketos/upstreaming@...ts.sr.ht, 
 Artur Weber <aweber.kernel@...il.com>
Subject: [PATCH RFC 5/5] ARM: dts: bcm2166x-common: Add matching bus clocks
 for peripheral clocks

Following changes in the clock driver, add bus clocks for timer, SDIO,
BSC and UART to the DTS clock output names. Replace the usb_otg_ahb
fixed clock with the real bus clock.

Signed-off-by: Artur Weber <aweber.kernel@...il.com>
---
 arch/arm/boot/dts/broadcom/bcm2166x-common.dtsi | 28 ++++++++++++++++---------
 1 file changed, 18 insertions(+), 10 deletions(-)

diff --git a/arch/arm/boot/dts/broadcom/bcm2166x-common.dtsi b/arch/arm/boot/dts/broadcom/bcm2166x-common.dtsi
index 87180b7fd695e65b52c52743e6315cbcca385fba..ab6ad8c6d326171a6da1762ecd839bd82e9da482 100644
--- a/arch/arm/boot/dts/broadcom/bcm2166x-common.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2166x-common.dtsi
@@ -143,7 +143,7 @@ usbotg: usb@...000 {
 			compatible = "snps,dwc2";
 			reg = <0x00e20000 0x10000>;
 			interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
-			clocks = <&usb_otg_ahb_clk>;
+			clocks = <&master_ccu BCM21664_MASTER_CCU_USB_OTG_AHB>;
 			clock-names = "otg";
 			phys = <&usbphy>;
 			phy-names = "usb2-phy";
@@ -248,12 +248,6 @@ var_52m_clk: var_52m {
 			clock-frequency = <52000000>;
 		};
 
-		usb_otg_ahb_clk: usb_otg_ahb {
-			#clock-cells = <0>;
-			compatible = "fixed-clock";
-			clock-frequency = <52000000>;
-		};
-
 		ref_96m_clk: ref_96m {
 			#clock-cells = <0>;
 			compatible = "fixed-clock";
@@ -301,7 +295,8 @@ aon_ccu: aon_ccu@...02000 {
 			compatible = "brcm,bcm21664-aon-ccu";
 			reg = <0x35002000 0x0f00>;
 			#clock-cells = <1>;
-			clock-output-names = "hub_timer";
+			clock-output-names = "hub_timer",
+					     "hub_timer_apb";
 		};
 
 		slave_ccu: slave_ccu@...11000 {
@@ -314,7 +309,15 @@ slave_ccu: slave_ccu@...11000 {
 					     "bsc1",
 					     "bsc2",
 					     "bsc3",
-					     "bsc4";
+					     "bsc4",
+					     "uartb_apb",
+					     "uartb2_apb",
+					     "uartb3_apb",
+					     "bsc1_apb",
+					     "bsc2_apb",
+					     "bsc3_apb",
+					     "bsc4_apb";
+
 		};
 
 		master_ccu: master_ccu@...01000 {
@@ -328,7 +331,12 @@ master_ccu: master_ccu@...01000 {
 					     "sdio1_sleep",
 					     "sdio2_sleep",
 					     "sdio3_sleep",
-					     "sdio4_sleep";
+					     "sdio4_sleep",
+					     "sdio1_ahb",
+					     "sdio2_ahb",
+					     "sdio3_ahb",
+					     "sdio4_ahb",
+					     "usb_otg_ahb";
 		};
 	};
 };

-- 
2.48.1