mtd: rawnand: denali: remove DENALI_NR_BANKS macro

Use the runtime-detected denali->nbanks instead of hard-coded
DENALI_NR_BANKS (=4).

The actual number of banks depends on the IP configuration, and
can be less than DENALI_NR_BANKS. It is pointless to touch
registers of unsupported banks.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

drivers/mtd/nand/raw/denali.c

@@ -40,7 +40,6 @@
 #define DENALI_BANK(denali)	((denali)->active_bank << 24)
 
 #define DENALI_INVALID_BANK	-1
-#define DENALI_NR_BANKS		4
 
 static struct denali_chip *to_denali_chip(struct nand_chip *chip)
 {
@@ -92,7 +91,7 @@ static void denali_enable_irq(struct denali_controller *denali)
 {
 	int i;
 
-	for (i = 0; i < DENALI_NR_BANKS; i++)
+	for (i = 0; i < denali->nbanks; i++)
 		iowrite32(U32_MAX, denali->reg + INTR_EN(i));
 	iowrite32(GLOBAL_INT_EN_FLAG, denali->reg + GLOBAL_INT_ENABLE);
 }
@@ -101,7 +100,7 @@ static void denali_disable_irq(struct denali_controller *denali)
 {
 	int i;
 
-	for (i = 0; i < DENALI_NR_BANKS; i++)
+	for (i = 0; i < denali->nbanks; i++)
 		iowrite32(0, denali->reg + INTR_EN(i));
 	iowrite32(0, denali->reg + GLOBAL_INT_ENABLE);
 }
@@ -117,7 +116,7 @@ static void denali_clear_irq_all(struct denali_controller *denali)
 {
 	int i;
 
-	for (i = 0; i < DENALI_NR_BANKS; i++)
+	for (i = 0; i < denali->nbanks; i++)
 		denali_clear_irq(denali, i, U32_MAX);
 }
 
@@ -130,7 +129,7 @@ static irqreturn_t denali_isr(int irq, void *dev_id)
 
 	spin_lock(&denali->irq_lock);
 
-	for (i = 0; i < DENALI_NR_BANKS; i++) {
+	for (i = 0; i < denali->nbanks; i++) {
 		irq_status = ioread32(denali->reg + INTR_STATUS(i));
 		if (irq_status)
 			ret = IRQ_HANDLED;