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yaml
---
r: 77352
b: refs/heads/master
c: 4bd28eb
h: refs/heads/master
v: v3
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Jon Smirl authored and Jean Delvare committed Jan 27, 2008
1 parent b8a410b commit 6992696
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Showing 2 changed files with 17 additions and 13 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: e9f1373b643887f63878d1169b310c9acc534cd5
refs/heads/master: 4bd28ebda2d48f16c1f16ff936a6927a4ef2194d
28 changes: 16 additions & 12 deletions trunk/drivers/i2c/busses/i2c-mpc.c
Original file line number Diff line number Diff line change
Expand Up @@ -180,7 +180,7 @@ static void mpc_i2c_stop(struct mpc_i2c *i2c)
static int mpc_write(struct mpc_i2c *i2c, int target,
const u8 * data, int length, int restart)
{
int i;
int i, result;
unsigned timeout = i2c->adap.timeout;
u32 flags = restart ? CCR_RSTA : 0;

Expand All @@ -192,15 +192,17 @@ static int mpc_write(struct mpc_i2c *i2c, int target,
/* Write target byte */
writeb((target << 1), i2c->base + MPC_I2C_DR);

if (i2c_wait(i2c, timeout, 1) < 0)
return -1;
result = i2c_wait(i2c, timeout, 1);
if (result < 0)
return result;

for (i = 0; i < length; i++) {
/* Write data byte */
writeb(data[i], i2c->base + MPC_I2C_DR);

if (i2c_wait(i2c, timeout, 1) < 0)
return -1;
result = i2c_wait(i2c, timeout, 1);
if (result < 0)
return result;
}

return 0;
Expand All @@ -210,7 +212,7 @@ static int mpc_read(struct mpc_i2c *i2c, int target,
u8 * data, int length, int restart)
{
unsigned timeout = i2c->adap.timeout;
int i;
int i, result;
u32 flags = restart ? CCR_RSTA : 0;

/* Start with MEN */
Expand All @@ -221,8 +223,9 @@ static int mpc_read(struct mpc_i2c *i2c, int target,
/* Write target address byte - this time with the read flag set */
writeb((target << 1) | 1, i2c->base + MPC_I2C_DR);

if (i2c_wait(i2c, timeout, 1) < 0)
return -1;
result = i2c_wait(i2c, timeout, 1);
if (result < 0)
return result;

if (length) {
if (length == 1)
Expand All @@ -234,8 +237,9 @@ static int mpc_read(struct mpc_i2c *i2c, int target,
}

for (i = 0; i < length; i++) {
if (i2c_wait(i2c, timeout, 0) < 0)
return -1;
result = i2c_wait(i2c, timeout, 0);
if (result < 0)
return result;

/* Generate txack on next to last byte */
if (i == length - 2)
Expand Down Expand Up @@ -320,9 +324,9 @@ static int fsl_i2c_probe(struct platform_device *pdev)

pdata = (struct fsl_i2c_platform_data *) pdev->dev.platform_data;

if (!(i2c = kzalloc(sizeof(*i2c), GFP_KERNEL))) {
i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
if (!i2c)
return -ENOMEM;
}

i2c->irq = platform_get_irq(pdev, 0);
if (i2c->irq < 0) {
Expand Down

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