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Revert "cw1200: Don't perform SPI transfers in interrupt context"

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This reverts commit aec8e88c94.

This solution turned out to cause interrupt delivery problems, and
rather than trying to fix this approach, it has been scrapped in favor
of an alternative (and far simpler) implementation.

Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Solomon Peachy
2013-09-23 16:00:03 -04:00
committed by John W. Linville
parent b7be1522de
commit c4fb19d21b
4 changed files with 4 additions and 33 deletions
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15
drivers/net/wireless/cw1200/hwio.c
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@@ -273,21 +273,6 @@ int __cw1200_irq_enable(struct cw1200_common *priv, int enable)
u16 val16;
int ret;
/* We need to do this hack because the SPI layer can sleep on I/O
and the general path involves I/O to the device in interrupt
context.
However, the initial enable call needs to go to the hardware.
We don't worry about shutdown because we do a full reset which
clears the interrupt enabled bits.
*/
if (priv->hwbus_ops->irq_enable) {
ret = priv->hwbus_ops->irq_enable(priv->hwbus_priv, enable);
if (ret || enable < 2)
return ret;
}
if (HIF_8601_SILICON == priv->hw_type) {
ret = __cw1200_reg_read_32(priv, ST90TDS_CONFIG_REG_ID, &val32);
if (ret < 0) {