mei: use non cached hcsr for interrupt enablement
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index ec4ab89..ed61659 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -106,8 +106,9 @@
*/
void mei_clear_interrupts(struct mei_device *dev)
{
- if ((dev->host_hw_state & H_IS) == H_IS)
- mei_reg_write(dev, H_CSR, dev->host_hw_state);
+ u32 hcsr = mei_hcsr_read(dev);
+ if ((hcsr & H_IS) == H_IS)
+ mei_reg_write(dev, H_CSR, hcsr);
}
/**
@@ -117,8 +118,10 @@
*/
void mei_enable_interrupts(struct mei_device *dev)
{
- dev->host_hw_state |= H_IE;
- mei_hcsr_set(dev);
+ u32 hcsr = mei_hcsr_read(dev);
+ hcsr |= H_IE;
+ hcsr &= ~H_IS;
+ mei_reg_write(dev, H_CSR, hcsr);
}
/**
@@ -128,8 +131,10 @@
*/
void mei_disable_interrupts(struct mei_device *dev)
{
- dev->host_hw_state &= ~H_IE;
- mei_hcsr_set(dev);
+ u32 hcsr = mei_hcsr_read(dev);
+ hcsr &= ~H_IE;
+ hcsr &= ~H_IS;
+ mei_reg_write(dev, H_CSR, hcsr);
}
/**