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i2c: ismt: do not duplicate msi_enabled flag 

struct pci_dev already has a flag to track if MSI is enabled or not. Use it
directly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Andy Shevchenko 2015-09-16 17:24:00 +03:00 committed by Wolfram Sang
parent fb8918b2cf
commit f92d155d3e
1 changed files with 1 additions and 5 deletions
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6
drivers/i2c/busses/i2c-ismt.c
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@ -172,7 +172,6 @@ struct ismt_priv {
u8 head; /* ring buffer head pointer */
struct completion cmp; /* interrupt completion */
u8 dma_buffer[I2C_SMBUS_BLOCK_MAX + 1]; /* temp R/W data buffer */
bool using_msi; /* type of interrupt flag */
};
/**
@ -398,7 +397,7 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, read_write);
/* Initialize common control bits */
if (likely(priv->using_msi))
if (likely(pci_dev_msi_enabled(priv->pci_dev)))
desc->control = ISMT_DESC_INT | ISMT_DESC_FAIR;
else
desc->control = ISMT_DESC_FAIR;
@ -806,7 +805,6 @@ static int ismt_int_init(struct ismt_priv *priv)
goto intx;
}
priv->using_msi = true;
goto done;
/* Try using legacy interrupts */
@ -822,8 +820,6 @@ intx:
return -ENODEV;
}
priv->using_msi = false;
done:
return 0;
}