Merge tag 'i3c/for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c updates from Alexandre Belloni:
 "Not much this cycle with only three patches.

  Core:
   - i3c_bus_type is now const

  Drivers:
   - dw: disabling IBI is only allowed when hot join and SIR are disabled"

* tag 'i3c/for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: Make i3c_bus_type const
  i3c: dw: Disable IBI IRQ depends on hot-join and SIR enabling
  dt-bindings: i3c: drop "master" node name suffix

Author: torvalds

Documentation/devicetree/bindings/i3c/aspeed,ast2600-i3c.yaml

@@ -57,7 +57,7 @@ examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
 
-    i3c-master@2000 {
+    i3c@2000 {
         compatible = "aspeed,ast2600-i3c";
         reg = <0x2000 0x1000>;
         #address-cells = <3>;

Documentation/devicetree/bindings/i3c/cdns,i3c-master.yaml

@@ -41,7 +41,7 @@ unevaluatedProperties: false
 
 examples:
   - |
-    i3c-master@d040000 {
+    i3c@d040000 {
         compatible = "cdns,i3c-master";
         clocks = <&coreclock>, <&i3csysclock>;
         clock-names = "pclk", "sysclk";

Documentation/devicetree/bindings/i3c/i3c.yaml

@@ -17,7 +17,7 @@ description: |
 
 properties:
   $nodename:
-    pattern: "^i3c-master@[0-9a-f]+$"
+    pattern: "^i3c@[0-9a-f]+$"
 
   "#address-cells":
     const: 3
@@ -153,7 +153,7 @@ additionalProperties: true
 
 examples:
   - |
-    i3c-master@d040000 {
+    i3c@d040000 {
         compatible = "cdns,i3c-master";
         clocks = <&coreclock>, <&i3csysclock>;
         clock-names = "pclk", "sysclk";

Documentation/devicetree/bindings/i3c/mipi-i3c-hci.yaml

@@ -43,7 +43,7 @@ unevaluatedProperties: false
 
 examples:
   - |
-    i3c-master@a0000000 {
+    i3c@a0000000 {
       compatible = "mipi-i3c-hci";
       reg = <0xa0000000 0x2000>;
       interrupts = <89>;

Documentation/devicetree/bindings/i3c/silvaco,i3c-master.yaml

@@ -48,7 +48,7 @@ unevaluatedProperties: false
 
 examples:
   - |
-    i3c-master@a0000000 {
+    i3c@a0000000 {
         compatible = "silvaco,i3c-master-v1";
         clocks = <&zynqmp_clk 71>, <&fclk>, <&sclk>;
         clock-names = "pclk", "fast_clk", "slow_clk";

Documentation/devicetree/bindings/i3c/snps,dw-i3c-master.yaml

@@ -35,7 +35,7 @@ unevaluatedProperties: false
 
 examples:
   - |
-    i3c-master@2000 {
+    i3c@2000 {
         compatible = "snps,dw-i3c-master-1.00a";
         #address-cells = <3>;
         #size-cells = <0>;

drivers/i3c/internals.h

@@ -10,7 +10,7 @@
 
 #include <linux/i3c/master.h>
 
-extern struct bus_type i3c_bus_type;
+extern const struct bus_type i3c_bus_type;
 
 void i3c_bus_normaluse_lock(struct i3c_bus *bus);
 void i3c_bus_normaluse_unlock(struct i3c_bus *bus);

drivers/i3c/master.c

@@ -335,7 +335,7 @@ static void i3c_device_remove(struct device *dev)
 	i3c_device_free_ibi(i3cdev);
 }
 
-struct bus_type i3c_bus_type = {
+const struct bus_type i3c_bus_type = {
 	.name = "i3c",
 	.match = i3c_device_match,
 	.probe = i3c_device_probe,

drivers/i3c/master/dw-i3c-master.c

@@ -1163,8 +1163,10 @@ static void dw_i3c_master_set_sir_enabled(struct dw_i3c_master *master,
 		global = reg == 0xffffffff;
 		reg &= ~BIT(idx);
 	} else {
-		global = reg == 0;
+		bool hj_rejected = !!(readl(master->regs + DEVICE_CTRL) & DEV_CTRL_HOT_JOIN_NACK);
+
 		reg |= BIT(idx);
+		global = (reg == 0xffffffff) && hj_rejected;
 	}
 	writel(reg, master->regs + IBI_SIR_REQ_REJECT);