Merge branch 'bugzilla-14483' into release

[pandora-kernel.git] / drivers / i2c / busses / i2c-bfin-twi.c

diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index 26d8987..fe3fb56 100644 (file)
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -12,6 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/io.h>
 #include <linux/mm.h>
 #include <linux/timer.h>
 #include <linux/spinlock.h>
@@ -651,7 +652,7 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
                goto out_error_get_res;
        }
 
-       iface->regs_base = ioremap(res->start, res->end - res->start + 1);
+       iface->regs_base = ioremap(res->start, resource_size(res));
        if (iface->regs_base == NULL) {
                dev_err(&pdev->dev, "Cannot map IO\n");
                rc = -ENXIO;
@@ -692,13 +693,13 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
        }
 
        /* Set TWI internal clock as 10MHz */
-       write_CONTROL(iface, ((get_sclk() / 1024 / 1024 + 5) / 10) & 0x7F);
+       write_CONTROL(iface, ((get_sclk() / 1000 / 1000 + 5) / 10) & 0x7F);
 
        /*
         * We will not end up with a CLKDIV=0 because no one will specify
-        * 20kHz SCL or less in Kconfig now. (5 * 1024 / 20 = 0x100)
+        * 20kHz SCL or less in Kconfig now. (5 * 1000 / 20 = 250)
         */
-       clkhilow = 5 * 1024 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ;
+       clkhilow = ((10 * 1000 / CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ) + 1) / 2;
 
        /* Set Twi interface clock as specified */
        write_CLKDIV(iface, (clkhilow << 8) | clkhilow);