diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-07-17 18:54:24 +0530 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-07-19 15:38:44 -0700 |
| commit | 62b2257899a98ac458f4cd0a71f78934b4ae229f (patch) | |
| tree | 5994d28d9a757d0a041ad76cba956519e7ef9db3 /drivers/i2c | |
| parent | 5642461e69a5a051a4f748c0330270982ada3d20 (diff) | |
Revert "i2c: tegra: Fix i2c unknown interrupt issue"
This reverts commit 021d8866c80fab07cb4cd2753ed67d0c1b49c174.
The reason for revert the change:
The readback is done at the time of i2c_writel() and hence
it is not require to have this in scattered manner.
This is towards the aligning driver with mainline.
Change-Id: I74184683301d7a3c26550d97fb1ce3596273a0bb
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/116470
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Tested-by: Bandi Krishna Chaitanya <bandik@nvidia.com>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-tegra.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 5961aa0f5fcb..429576d60527 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -599,12 +599,9 @@ static irqreturn_t tegra_i2c_isr(int irq, void *dev_id) } i2c_writel(i2c_dev, status, I2C_INT_STATUS); - i2c_readl(i2c_dev, I2C_INT_STATUS); - if (i2c_dev->is_dvc) { + if (i2c_dev->is_dvc) dvc_writel(i2c_dev, DVC_STATUS_I2C_DONE_INTR, DVC_STATUS); - dvc_readl(i2c_dev, DVC_STATUS); - } if (status & I2C_INT_PACKET_XFER_COMPLETE) { BUG_ON(i2c_dev->msg_buf_remaining); @@ -640,16 +637,13 @@ err: I2C_INT_RX_FIFO_DATA_REQ | I2C_INT_TX_FIFO_OVERFLOW); i2c_writel(i2c_dev, status, I2C_INT_STATUS); - i2c_readl(i2c_dev, I2C_INT_STATUS); /* An error occured, mask dvc interrupt */ if (i2c_dev->is_dvc) dvc_i2c_mask_irq(i2c_dev, DVC_CTRL_REG3_I2C_DONE_INTR_EN); - if (i2c_dev->is_dvc) { + if (i2c_dev->is_dvc) dvc_writel(i2c_dev, DVC_STATUS_I2C_DONE_INTR, DVC_STATUS); - dvc_readl(i2c_dev, DVC_STATUS); - } complete(&i2c_dev->msg_complete); return IRQ_HANDLED; |