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From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Subject: [PATCH] reset: reset-socfpga: sync driver with linux
Date: Wed, 10 Jan 2018 09:31:21 +0100	[thread overview]
Message-ID: <20180110083121.4540-1-s.trumtrar@pengutronix.de> (raw)

Sync the SoCFPGA reset driver with Linux v4.14-rc1.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
 drivers/reset/reset-socfpga.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/reset/reset-socfpga.c b/drivers/reset/reset-socfpga.c
index 9214197e627d..dd081ee84f72 100644
--- a/drivers/reset/reset-socfpga.c
+++ b/drivers/reset/reset-socfpga.c
@@ -22,12 +22,12 @@
 #include <linux/spinlock.h>
 #include <linux/types.h>
 
-#define NR_BANKS		4
+#define BANK_INCREMENT		4
+#define NR_BANKS		8
 
 struct socfpga_reset_data {
 	spinlock_t			lock;
 	void __iomem			*membase;
-	u32				modrst_offset;
 	struct reset_controller_dev	rcdev;
 };
 
@@ -44,9 +44,8 @@ static int socfpga_reset_assert(struct reset_controller_dev *rcdev,
 
 	spin_lock_irqsave(&data->lock, flags);
 
-	reg = readl(data->membase + data->modrst_offset + (bank * NR_BANKS));
-	writel(reg | BIT(offset), data->membase + data->modrst_offset +
-				 (bank * NR_BANKS));
+	reg = readl(data->membase + (bank * BANK_INCREMENT));
+	writel(reg | BIT(offset), data->membase + (bank * BANK_INCREMENT));
 	spin_unlock_irqrestore(&data->lock, flags);
 
 	return 0;
@@ -66,9 +65,8 @@ static int socfpga_reset_deassert(struct reset_controller_dev *rcdev,
 
 	spin_lock_irqsave(&data->lock, flags);
 
-	reg = readl(data->membase + data->modrst_offset + (bank * NR_BANKS));
-	writel(reg & ~BIT(offset), data->membase + data->modrst_offset +
-				  (bank * NR_BANKS));
+	reg = readl(data->membase + (bank * BANK_INCREMENT));
+	writel(reg & ~BIT(offset), data->membase + (bank * BANK_INCREMENT));
 
 	spin_unlock_irqrestore(&data->lock, flags);
 
@@ -85,6 +83,7 @@ static int socfpga_reset_probe(struct device_d *dev)
 	struct socfpga_reset_data *data;
 	struct resource *res;
 	struct device_node *np = dev->device_node;
+	u32 modrst_offset;
 
 	data = xzalloc(sizeof(*data));
 
@@ -93,10 +92,11 @@ static int socfpga_reset_probe(struct device_d *dev)
 	if (IS_ERR(data->membase))
 		return PTR_ERR(data->membase);
 
-	if (of_property_read_u32(np, "altr,modrst-offset", &data->modrst_offset)) {
+	if (of_property_read_u32(np, "altr,modrst-offset", &modrst_offset)) {
 		dev_warn(dev, "missing altr,modrst-offset property, assuming 0x10!\n");
-		data->modrst_offset = 0x10;
+		modrst_offset = 0x10;
 	}
+	data->membase += modrst_offset;
 
 	spin_lock_init(&data->lock);
 
-- 
2.11.0


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             reply	other threads:[~2018-01-10  8:31 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-10  8:31 Steffen Trumtrar [this message]
2018-01-11  8:42 ` Sascha Hauer

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