linux-kernel - [PATCH v3 3/9] dt-bindings: clock: brcm,kona-ccu: Add BCM21664 bus clocks

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Message-Id: <20250308-kona-bus-clock-v3-3-d6fb5bfc3b67@gmail.com>
Date: Sat, 08 Mar 2025 08:50:41 +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 v3 3/9] dt-bindings: clock: brcm,kona-ccu: Add BCM21664 bus
 clocks

Add bus clocks for hub_timer, sdio, bsc, uart and usb_otg_ahb to the
allowed clock output names for BCM21664 CCUs and add the relevant
clock IDs to the clock/bcm21664.h dt-bindings header.

Signed-off-by: Artur Weber <aweber.kernel@...il.com>
---
Changes in v3:
- Fix UARTBx_APB clocks being out of order in DT binding header
- Drop CLOCK_COUNT defines from DT binding header

Changes in v2:
- Move clock ID dt-bindings header changes into this commit
---
 .../devicetree/bindings/clock/brcm,kona-ccu.yaml       | 18 ++++++++++++++++--
 include/dt-bindings/clock/bcm21664.h                   | 13 +++++++++++++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/brcm,kona-ccu.yaml b/Documentation/devicetree/bindings/clock/brcm,kona-ccu.yaml
index e5656950b3bd0ad44ba47f0ada84b558e71df590..dff04e24e92829b890bf7cd336f0e083bdb30fa6 100644
--- a/Documentation/devicetree/bindings/clock/brcm,kona-ccu.yaml
+++ b/Documentation/devicetree/bindings/clock/brcm,kona-ccu.yaml
@@ -40,7 +40,7 @@ properties:
 
   clock-output-names:
     minItems: 1
-    maxItems: 10
+    maxItems: 14
 
 required:
   - compatible
@@ -124,7 +124,9 @@ allOf:
     then:
       properties:
         clock-output-names:
-          const: hub_timer
+          items:
+            - const: hub_timer
+            - const: hub_timer_apb
   - if:
       properties:
         compatible:
@@ -142,6 +144,11 @@ allOf:
             - const: sdio2_sleep
             - const: sdio3_sleep
             - const: sdio4_sleep
+            - const: sdio1_ahb
+            - const: sdio2_ahb
+            - const: sdio3_ahb
+            - const: sdio4_ahb
+            - const: usb_otg_ahb
   - if:
       properties:
         compatible:
@@ -158,6 +165,13 @@ allOf:
             - const: bsc2
             - const: bsc3
             - const: bsc4
+            - const: uartb_apb
+            - const: uartb2_apb
+            - const: uartb3_apb
+            - const: bsc1_apb
+            - const: bsc2_apb
+            - const: bsc3_apb
+            - const: bsc4_apb
 
 additionalProperties: false
 
diff --git a/include/dt-bindings/clock/bcm21664.h b/include/dt-bindings/clock/bcm21664.h
index 7a380a51848ce100cbf94f9da2b997dbe3a65230..9f3614eb9036b5ce36b610fd7437338655a9cf97 100644
--- a/include/dt-bindings/clock/bcm21664.h
+++ b/include/dt-bindings/clock/bcm21664.h
@@ -25,6 +25,7 @@
 /* aon CCU clock ids */
 
 #define BCM21664_AON_CCU_HUB_TIMER		0
+#define BCM21664_AON_CCU_HUB_TIMER_APB		1
 
 /* master CCU clock ids */
 
@@ -36,6 +37,11 @@
 #define BCM21664_MASTER_CCU_SDIO2_SLEEP		5
 #define BCM21664_MASTER_CCU_SDIO3_SLEEP		6
 #define BCM21664_MASTER_CCU_SDIO4_SLEEP		7
+#define BCM21664_MASTER_CCU_SDIO1_AHB		8
+#define BCM21664_MASTER_CCU_SDIO2_AHB		9
+#define BCM21664_MASTER_CCU_SDIO3_AHB		10
+#define BCM21664_MASTER_CCU_SDIO4_AHB		11
+#define BCM21664_MASTER_CCU_USB_OTG_AHB		12
 
 /* slave CCU clock ids */
 
@@ -46,5 +52,12 @@
 #define BCM21664_SLAVE_CCU_BSC2			4
 #define BCM21664_SLAVE_CCU_BSC3			5
 #define BCM21664_SLAVE_CCU_BSC4			6
+#define BCM21664_SLAVE_CCU_UARTB_APB		7
+#define BCM21664_SLAVE_CCU_UARTB2_APB		8
+#define BCM21664_SLAVE_CCU_UARTB3_APB		9
+#define BCM21664_SLAVE_CCU_BSC1_APB		10
+#define BCM21664_SLAVE_CCU_BSC2_APB		11
+#define BCM21664_SLAVE_CCU_BSC3_APB		12
+#define BCM21664_SLAVE_CCU_BSC4_APB		13
 
 #endif /* _CLOCK_BCM21664_H */

-- 
2.48.1