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From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: linux-mtd@lists.infradead.org, Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Boris Brezillon <bbrezillon@kernel.org>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Brian Norris <computersforpeace@gmail.com>,
	linux-kernel@vger.kernel.org, Marek Vasut <marek.vasut@gmail.com>,
	Richard Weinberger <richard@nod.at>,
	David Woodhouse <dwmw2@infradead.org>
Subject: [PATCH 10/11] mtd: rawnand: denali: remove DENALI_NR_BANKS macro
Date: Fri,  8 Feb 2019 17:08:54 +0900	[thread overview]
Message-ID: <1549613335-30319-11-git-send-email-yamada.masahiro@socionext.com> (raw)
In-Reply-To: <1549613335-30319-1-git-send-email-yamada.masahiro@socionext.com>

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>
---

 drivers/mtd/nand/raw/denali.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
index 84dac9f..ce3a4bb 100644
--- a/drivers/mtd/nand/raw/denali.c
+++ b/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_stat = ioread32(denali->reg + INTR_STATUS(i));
 		if (irq_stat)
 			ret = IRQ_HANDLED;
-- 
2.7.4


  parent reply	other threads:[~2019-02-08  8:10 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-08  8:08 [PATCH 00/11] mtd: rawnand: denali: exec_op(), controller/chip separation, and cleanups Masahiro Yamada
2019-02-08  8:08 ` [PATCH 01/11] mtd: rawnand: denali: use nand_chip pointer more for internal functions Masahiro Yamada
2019-02-08  8:08 ` [PATCH 02/11] mtd: rawnand: denali: refactor syndrome layout handling for raw access Masahiro Yamada
2019-02-08  8:08 ` [PATCH 03/11] mtd: rawnand: denali: remove unneeded casts in denali_{read,write}_pio Masahiro Yamada
2019-02-08  8:08 ` [PATCH 04/11] mtd: rawnand: denali: switch over to ->exec_op() from legacy hooks Masahiro Yamada
2019-02-08  9:49   ` Masahiro Yamada
2019-02-08  8:08 ` [PATCH 05/11] mtd: rawnand: denali: rename irq_status to irq_stat Masahiro Yamada
2019-02-08 21:57   ` Miquel Raynal
2019-02-11  1:15     ` Masahiro Yamada
2019-02-08  8:08 ` [PATCH 06/11] mtd: rawnand: denali: use more precise timeout for NAND_OP_WAITRDT_INSTR Masahiro Yamada
2019-02-08 22:05   ` Miquel Raynal
2019-02-11  1:26     ` Masahiro Yamada
2019-02-08  8:08 ` [PATCH 07/11] mtd: rawnand: denali: use bool type instead of int where appropriate Masahiro Yamada
2019-02-08  9:23   ` Joe Perches
2019-02-08  9:33     ` Masahiro Yamada
2019-02-08 22:11     ` Miquel Raynal
2019-02-08  8:08 ` [PATCH 08/11] mtd: rawnand: denali_pci: rename goto labels Masahiro Yamada
2019-02-08  8:08 ` [PATCH 09/11] mtd: rawnand: denali: decouple controller and NAND chips Masahiro Yamada
2019-02-08  8:08 ` Masahiro Yamada [this message]
2019-02-08  8:08 ` [PATCH 11/11] mtd: rawnand: denali: clean up coding style Masahiro Yamada
2019-02-08 21:55 ` [PATCH 00/11] mtd: rawnand: denali: exec_op(), controller/chip separation, and cleanups Miquel Raynal

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