wil6210: fix for HW bug in interrupt setup logic
Hardware bug triggered by the MSI init while INTx asserted for some reason.
De-assert INTx prior to MSI set-up
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/wil6210/interrupt.c b/drivers/net/wireless/ath/wil6210/interrupt.c
index 10919f9..52c40e1 100644
--- a/drivers/net/wireless/ath/wil6210/interrupt.c
+++ b/drivers/net/wireless/ath/wil6210/interrupt.c
@@ -493,6 +493,23 @@
return rc;
}
+/* can't use wil_ioread32_and_clear because ICC value is not ser yet */
+static inline void wil_clear32(void __iomem *addr)
+{
+ u32 x = ioread32(addr);
+
+ iowrite32(x, addr);
+}
+
+void wil6210_clear_irq(struct wil6210_priv *wil)
+{
+ wil_clear32(wil->csr + HOSTADDR(RGF_DMA_EP_RX_ICR) +
+ offsetof(struct RGF_ICR, ICR));
+ wil_clear32(wil->csr + HOSTADDR(RGF_DMA_EP_TX_ICR) +
+ offsetof(struct RGF_ICR, ICR));
+ wil_clear32(wil->csr + HOSTADDR(RGF_DMA_EP_MISC_ICR) +
+ offsetof(struct RGF_ICR, ICR));
+}
int wil6210_init_irq(struct wil6210_priv *wil, int irq)
{