summaryrefslogtreecommitdiff
path: root/drivers/i2c/busses/i2c-imx.c
diff options
context:
space:
mode:
authorH. Peter Anvin <hpa@zytor.com>2010-02-22 16:20:34 -0800
committerH. Peter Anvin <hpa@zytor.com>2010-02-22 16:20:34 -0800
commitd02e30c31c57683a66ed68a1bcff900ca78f6d56 (patch)
treec3ce99a00061bcc1199b50fa838147d876c56717 /drivers/i2c/busses/i2c-imx.c
parent0fdc7a8022c3eaff6b5ee27ffb9e913e5e58d8e9 (diff)
parentaef55d4922e62a0d887e60d87319f3718aec6ced (diff)
Merge branch 'x86/irq' into x86/apic
Merge reason: Conflicts in arch/x86/kernel/apic/io_apic.c Resolved Conflicts: arch/x86/kernel/apic/io_apic.c Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'drivers/i2c/busses/i2c-imx.c')
-rw-r--r--drivers/i2c/busses/i2c-imx.c26
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index e3654d683e15..75bf820e7ccb 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -226,7 +226,6 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx)
temp = readb(i2c_imx->base + IMX_I2C_I2CR);
temp &= ~(I2CR_MSTA | I2CR_MTX);
writeb(temp, i2c_imx->base + IMX_I2C_I2CR);
- i2c_imx->stopped = 1;
}
if (cpu_is_mx1()) {
/*
@@ -236,8 +235,10 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx)
udelay(i2c_imx->disable_delay);
}
- if (!i2c_imx->stopped)
+ if (!i2c_imx->stopped) {
i2c_imx_bus_busy(i2c_imx, 0);
+ i2c_imx->stopped = 1;
+ }
/* Disable I2C controller */
writeb(0, i2c_imx->base + IMX_I2C_I2CR);
@@ -496,22 +497,23 @@ static int __init i2c_imx_probe(struct platform_device *pdev)
}
res_size = resource_size(res);
+
+ if (!request_mem_region(res->start, res_size, DRIVER_NAME)) {
+ ret = -EBUSY;
+ goto fail0;
+ }
+
base = ioremap(res->start, res_size);
if (!base) {
dev_err(&pdev->dev, "ioremap failed\n");
ret = -EIO;
- goto fail0;
+ goto fail1;
}
i2c_imx = kzalloc(sizeof(struct imx_i2c_struct), GFP_KERNEL);
if (!i2c_imx) {
dev_err(&pdev->dev, "can't allocate interface\n");
ret = -ENOMEM;
- goto fail1;
- }
-
- if (!request_mem_region(res->start, res_size, DRIVER_NAME)) {
- ret = -EBUSY;
goto fail2;
}
@@ -582,11 +584,11 @@ fail5:
fail4:
clk_put(i2c_imx->clk);
fail3:
- release_mem_region(i2c_imx->res->start, resource_size(res));
-fail2:
kfree(i2c_imx);
-fail1:
+fail2:
iounmap(base);
+fail1:
+ release_mem_region(res->start, resource_size(res));
fail0:
if (pdata && pdata->exit)
pdata->exit(&pdev->dev);
@@ -618,8 +620,8 @@ static int __exit i2c_imx_remove(struct platform_device *pdev)
clk_put(i2c_imx->clk);
- release_mem_region(i2c_imx->res->start, resource_size(i2c_imx->res));
iounmap(i2c_imx->base);
+ release_mem_region(i2c_imx->res->start, resource_size(i2c_imx->res));
kfree(i2c_imx);
return 0;
}