linux-kernel - [PATCH v6 8/9] ARM: dts: bcm2166x-common: Add matching bus clocks for peripheral clocks

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Message-Id: <20250813-kona-bus-clock-v6-8-f5a63d4920a4@gmail.com>
Date: Wed, 13 Aug 2025 13:00:14 +0200
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, linux-arm-kernel@...ts.infradead.org, 
 Artur Weber <aweber.kernel@...il.com>
Subject: [PATCH v6 8/9] 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>
---
Changes in v4:
- Change commit summary to match equivalent BCM281xx commit
---
 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 f535212cb52fec0668abfc06e7268bead70d958a..b8a6b81d2b7cac00cf393ee37aae4dcc379e487c 100644
--- a/arch/arm/boot/dts/broadcom/bcm2166x-common.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm2166x-common.dtsi
@@ -148,7 +148,7 @@ 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";
@@ -253,12 +253,6 @@ 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";
@@ -306,7 +300,8 @@ 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 {
@@ -319,7 +314,15 @@ 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 {
@@ -333,7 +336,12 @@ 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";
 		};
 	};
 };

-- 
2.50.1