/*
- * 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>
*
#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>
u32 cntl_bits;
void __iomem *reg_base;
u32 reg_base_p;
+ u32 reg_size;
u32 addr1;
u32 addr2;
u32 bytes_left;
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;
}
{
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;
drv_data->adapter.id = I2C_HW_MV64XXX;
drv_data->adapter.algo = &mv64xxx_i2c_algo;
drv_data->adapter.owner = THIS_MODULE;
- drv_data->adapter.class = I2C_CLASS_HWMON;
+ drv_data->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
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);