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add i2c

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This commit is contained in:
柯飞雄
2010-05-11 14:10:25 +00:00
committed by 黄涛
parent 99e8fe779d
commit 5308e48a9e
1 changed files with 3 additions and 3 deletions
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6
drivers/i2c/busses/i2c-rk2818.c
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@@ -278,7 +278,7 @@ static int rk2818_send_address(struct rk2818_i2c_data *i2c,
conr |= I2C_CONR_MTX_MODE;
conr &= I2C_CONR_ACK;
writel(conr, i2c->regs + I2C_CONR);
dev_info(i2c->dev, "send addr: %lx\n", addr_1st);
dev_dbg(i2c->dev, "send addr: %lx\n", addr_1st);
writel(addr_1st, i2c->regs + I2C_MTXR);
if(i2c->msg_idx == 0)
{
@@ -367,7 +367,7 @@ static int rk2818_xfer_msg(struct i2c_adapter *adap,
goto exit_disable;
}
msg->buf[i] = (uint8_t)readl(i2c->regs + I2C_MRXR);
dev_info(i2c->dev, "receive data=%u\n",msg->buf[i]);
dev_dbg(i2c->dev, "receive data=%u\n",msg->buf[i]);
if(i == msg->len - 1)
{
conr = readl(i2c->regs + I2C_CONR);
@@ -384,7 +384,7 @@ static int rk2818_xfer_msg(struct i2c_adapter *adap,
for(i = 0; i < msg->len; i++)
{
writel(msg->buf[i], i2c->regs + I2C_MTXR);
dev_info(i2c->dev, "send data =%u\n", msg->buf[i]);
dev_dbg(i2c->dev, "send data =%u\n", msg->buf[i]);
conr = readl(i2c->regs + I2C_CONR);
conr |= I2C_CONR_NAK;
writel(conr, i2c->regs + I2C_CONR);