i3c: mipi-i3c-hci: Remove nonexistent ring interrupt

Ring interrupt bit 7, INTR_WARN_INS_STOP_MODE was probably drafted at
some point but is marked as reserved in the MIPI I3C HCI specification
versions 1.1 and 1.2 that came out after the initial code and also in
the earlier specification versions so remove it.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250827103009.243771-3-jarkko.nikula@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Author: jhnikula

drivers/i3c/master/mipi-i3c-hci/dma.c

@@ -77,7 +77,6 @@
 #define INTR_TRANSFER_COMPLETION	BIT(11)
 #define INTR_RING_OP			BIT(10)
 #define INTR_TRANSFER_ERR		BIT(9)
-#define INTR_WARN_INS_STOP_MODE		BIT(7)
 #define INTR_IBI_RING_FULL		BIT(6)
 #define INTR_TRANSFER_ABORT		BIT(5)
 
@@ -278,7 +277,6 @@ static int hci_dma_init(struct i3c_hci *hci)
 						 INTR_TRANSFER_COMPLETION |
 						 INTR_RING_OP |
 						 INTR_TRANSFER_ERR |
-						 INTR_WARN_INS_STOP_MODE |
 						 INTR_IBI_RING_FULL |
 						 INTR_TRANSFER_ABORT);
 
@@ -795,9 +793,6 @@ static bool hci_dma_irq_handler(struct i3c_hci *hci)
 							   RING_CTRL_RUN_STOP);
 			}
 		}
-		if (status & INTR_WARN_INS_STOP_MODE)
-			dev_warn_ratelimited(&hci->master.dev,
-				"ring %d: Inserted Stop on Mode Change\n", i);
 		if (status & INTR_IBI_RING_FULL)
 			dev_err_ratelimited(&hci->master.dev,
 				"ring %d: IBI Ring Full Condition\n", i);