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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-01-28 13:21:30 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-01-28 13:21:30 +0000
commitc00d4ffdbace1bdc9fdd888e4ba6d207ffa3b679 (patch)
tree2c9ddd5ae9cd899758b0785d4c7eb4bc200d66df /drivers/i2c
parentd0d42df2a440003d96c8bf29991c2afb691ef720 (diff)
parent8f86dda3ed8f05748f2351ae967926227a91ca2a (diff)
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Merge branch 'orion' into devel
* orion: (26 commits) [ARM] Orion: implement power-off method for QNAP TS-109/209 [ARM] Orion: add support for QNAP TS-109/TS-209 [ARM] Orion: I2C support [I2C] i2c-mv64xxx: Don't set i2c_adapter.retries [I2C] Split mv643xx I2C platform support [ARM] Orion: enable CONFIG_RTC_DRV_M41T80 for D-Link DNS-323 [ARM] Orion defconfig [ARM] Orion: add support for Orion/MV88F5181 based D-Link DNS-323 [ARM] Orion: MV88F5181 support bits [ARM] Orion: Buffalo/Revogear Kurobox Pro support [ARM] OrionNAS RD board support [ARM] Orion: support for Marvell Orion-2 (88F5281) Development Board [ARM] Orion: common platform setup for Gigabit Ethernet port [ARM] Orion: platform device registration for UART, USB and NAND [ARM] Orion: system timer support [ARM] Orion edge GPIO IRQ support [ARM] Orion: IRQ support [ARM] Orion: provide GPIO method for enabling hardware assisted blinking [ARM] Orion: GPIO support [ARM] Orion: programable address map support ... Conflicts: arch/arm/Kconfig arch/arm/Makefile Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/Kconfig2
-rw-r--r--drivers/i2c/busses/i2c-mv64xxx.c32
2 files changed, 18 insertions, 16 deletions
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 8d12b26bb6c6..b61f56b6f311 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -643,7 +643,7 @@ config I2C_PCA_ISA
config I2C_MV64XXX
tristate "Marvell mv64xxx I2C Controller"
- depends on MV64X60 && EXPERIMENTAL
+ depends on (MV64X60 || ARCH_ORION) && EXPERIMENTAL
help
If you say yes to this option, support will be included for the
built-in I2C interface on the Marvell 64xxx line of host bridges.
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index bb7bf68a7fb6..036e6a883e67 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -1,6 +1,6 @@
/*
- * Driver for the i2c controller on the Marvell line of host bridges for MIPS
- * and PPC (e.g, gt642[46]0, mv643[46]0, mv644[46]0).
+ * Driver for the i2c controller on the Marvell line of host bridges
+ * (e.g, gt642[46]0, mv643[46]0, mv644[46]0, and Orion SoC family).
*
* Author: Mark A. Greer <mgreer@mvista.com>
*
@@ -14,7 +14,7 @@
#include <linux/spinlock.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
-#include <linux/mv643xx.h>
+#include <linux/mv643xx_i2c.h>
#include <linux/platform_device.h>
#include <asm/io.h>
@@ -86,6 +86,7 @@ struct mv64xxx_i2c_data {
u32 cntl_bits;
void __iomem *reg_base;
u32 reg_base_p;
+ u32 reg_size;
u32 addr1;
u32 addr2;
u32 bytes_left;
@@ -463,17 +464,20 @@ static int __devinit
mv64xxx_i2c_map_regs(struct platform_device *pd,
struct mv64xxx_i2c_data *drv_data)
{
- struct resource *r;
+ int size;
+ struct resource *r = platform_get_resource(pd, IORESOURCE_MEM, 0);
- if ((r = platform_get_resource(pd, IORESOURCE_MEM, 0)) &&
- request_mem_region(r->start, MV64XXX_I2C_REG_BLOCK_SIZE,
- drv_data->adapter.name)) {
+ if (!r)
+ return -ENODEV;
- drv_data->reg_base = ioremap(r->start,
- MV64XXX_I2C_REG_BLOCK_SIZE);
- drv_data->reg_base_p = r->start;
- } else
- return -ENOMEM;
+ size = r->end - r->start + 1;
+
+ if (!request_mem_region(r->start, size, drv_data->adapter.name))
+ return -EBUSY;
+
+ drv_data->reg_base = ioremap(r->start, size);
+ drv_data->reg_base_p = r->start;
+ drv_data->reg_size = size;
return 0;
}
@@ -483,8 +487,7 @@ mv64xxx_i2c_unmap_regs(struct mv64xxx_i2c_data *drv_data)
{
if (drv_data->reg_base) {
iounmap(drv_data->reg_base);
- release_mem_region(drv_data->reg_base_p,
- MV64XXX_I2C_REG_BLOCK_SIZE);
+ release_mem_region(drv_data->reg_base_p, drv_data->reg_size);
}
drv_data->reg_base = NULL;
@@ -529,7 +532,6 @@ mv64xxx_i2c_probe(struct platform_device *pd)
drv_data->adapter.owner = THIS_MODULE;
drv_data->adapter.class = I2C_CLASS_HWMON;
drv_data->adapter.timeout = pdata->timeout;
- drv_data->adapter.retries = pdata->retries;
drv_data->adapter.nr = pd->id;
platform_set_drvdata(pd, drv_data);
i2c_set_adapdata(&drv_data->adapter, drv_data);