From 6f183e869e4e1f42c0f0587883661b780bcbee4f Mon Sep 17 00:00:00 2001
From: Przemyslaw Marczak
Date: Wed, 30 Sep 2015 13:14:51 +0200
Subject: gpio: s5p: call: dev_get_addr() instead of fdtdec_get_addr()
After rework in lib/fdtdec.c, the function fdtdec_get_addr()
doesn't work for nodes with #size-cells property set to 0.
To get GPIO's 'reg' property, the code should use one of:
fdtdec_get_addr_size_auto_no/parent() function.
Fortunately dm core provides a function to get the property.
This commit reworks function gpio_exynos_bind(), to properly
use dev_get_addr() for GPIO device.
This prevents setting a wrong base register for Exynos GPIOs.
Tested on: Odroid U3/X2, Trats, Trats2, Odroid XU3, Snow (by Simon).
Signed-off-by: Przemyslaw Marczak
Acked-by: Stephen Warren
Acked-by: Simon Glass
Tested-by: Simon Glass
---
drivers/gpio/s5p_gpio.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
(limited to 'drivers/gpio/s5p_gpio.c')
diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c
index 17fcfbf..0f22b23 100644
--- a/drivers/gpio/s5p_gpio.c
+++ b/drivers/gpio/s5p_gpio.c
@@ -341,18 +341,22 @@ static int gpio_exynos_bind(struct udevice *parent)
plat = calloc(1, sizeof(*plat));
if (!plat)
return -ENOMEM;
- reg = fdtdec_get_addr(blob, node, "reg");
- if (reg != FDT_ADDR_T_NONE)
- bank = (struct s5p_gpio_bank *)((ulong)base + reg);
- plat->bank = bank;
- plat->bank_name = fdt_get_name(blob, node, NULL);
- debug("dev at %p: %s\n", bank, plat->bank_name);
+ plat->bank_name = fdt_get_name(blob, node, NULL);
ret = device_bind(parent, parent->driver,
- plat->bank_name, plat, -1, &dev);
+ plat->bank_name, plat, -1, &dev);
if (ret)
return ret;
+
dev->of_offset = node;
+
+ reg = dev_get_addr(dev);
+ if (reg != FDT_ADDR_T_NONE)
+ bank = (struct s5p_gpio_bank *)((ulong)base + reg);
+
+ plat->bank = bank;
+
+ debug("dev at %p: %s\n", bank, plat->bank_name);
}
return 0;
--
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