[v8,3/6] remoteproc: pru: Add enum for PRU Core Indentifiers.

Commit Message

MD Danish Anwar Nov. 16, 2022, 12:16 p.m. UTC

Introducing enum pruss_pru_id for PRU Core Identifiers.
PRUSS_PRU0 indicates PRU Core 0.
PRUSS_PRU1 indicates PRU Core 1.
PRUSS_NUM_PRUS indicates the total number of PRU Cores.

Signed-off-by: MD Danish Anwar <[e-mail]>
---
 drivers/remoteproc/pru_rproc.c | 6 +++---
 include/linux/pruss.h          | 9 +++++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c
index 4769ade9c316..7d4ed39b3772 100644
--- a/drivers/remoteproc/pru_rproc.c
+++ b/drivers/remoteproc/pru_rproc.c
@@ -564,7 +564,7 @@  static void *pru_d_da_to_va(struct pru_rproc *pru, u32 da, size_t len)
 	dram0 = pruss->mem_regions[PRUSS_MEM_DRAM0];
 	dram1 = pruss->mem_regions[PRUSS_MEM_DRAM1];
 	/* PRU1 has its local RAM addresses reversed */
-	if (pru->id == 1)
+	if (pru->id == PRUSS_PRU1)
 		swap(dram0, dram1);
 	shrd_ram = pruss->mem_regions[PRUSS_MEM_SHRD_RAM2];
 
@@ -873,14 +873,14 @@  static int pru_rproc_set_id(struct pru_rproc *pru)
 	case RTU0_IRAM_ADDR_MASK:
 		fallthrough;
 	case PRU0_IRAM_ADDR_MASK:
-		pru->id = 0;
+		pru->id = PRUSS_PRU0;
 		break;
 	case TX_PRU1_IRAM_ADDR_MASK:
 		fallthrough;
 	case RTU1_IRAM_ADDR_MASK:
 		fallthrough;
 	case PRU1_IRAM_ADDR_MASK:
-		pru->id = 1;
+		pru->id = PRUSS_PRU1;
 		break;
 	default:
 		ret = -EINVAL;
diff --git a/include/linux/pruss.h b/include/linux/pruss.h
index 4909226f14a9..fdc719b43db0 100644
--- a/include/linux/pruss.h
+++ b/include/linux/pruss.h
@@ -14,6 +14,15 @@ 
 
 #define PRU_RPROC_DRVNAME "pru-rproc"
 
+/*
+ * enum pruss_pru_id - PRU core identifiers
+ */
+enum pruss_pru_id {
+	PRUSS_PRU0 = 0,
+	PRUSS_PRU1,
+	PRUSS_NUM_PRUS,
+};
+
 struct device_node;
 
 #if IS_ENABLED(CONFIG_PRU_REMOTEPROC)