wl18xx: wlan_irq: support platform dependent interrupt types
* Interrupt request need to happen when the wilink chip is powered on and
driving the wlan_irq line. This avoids spurious interrupt issues that
are a result of different external pulls configuration on different
platforms
* Allow working with wl18xx level-low and falling edge irqs by configuring
wl18xx to invert the device interrupt
Signed-off-by: Eyal Reizer <eyalr@ti.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 717c4f5..dc48448 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -24,6 +24,7 @@
#include <linux/ip.h>
#include <linux/firmware.h>
#include <linux/etherdevice.h>
+#include <linux/irq.h>
#include "../wlcore/wlcore.h"
#include "../wlcore/debug.h"
@@ -578,7 +579,7 @@
static const struct wlcore_partition_set wl18xx_ptable[PART_TABLE_LEN] = {
[PART_TOP_PRCM_ELP_SOC] = {
- .mem = { .start = 0x00A02000, .size = 0x00010000 },
+ .mem = { .start = 0x00A00000, .size = 0x00012000 },
.reg = { .start = 0x00807000, .size = 0x00005000 },
.mem2 = { .start = 0x00800000, .size = 0x0000B000 },
.mem3 = { .start = 0x00000000, .size = 0x00000000 },
@@ -862,6 +863,7 @@
{
u32 tmp;
int ret;
+ u16 irq_invert;
BUILD_BUG_ON(sizeof(struct wl18xx_mac_and_phy_params) >
WL18XX_PHY_INIT_MEM_SIZE);
@@ -911,6 +913,28 @@
/* re-enable FDSP clock */
ret = wlcore_write32(wl, WL18XX_PHY_FPGA_SPARE_1,
MEM_FDSP_CLK_120_ENABLE);
+ if (ret < 0)
+ goto out;
+
+ ret = irq_get_trigger_type(wl->irq);
+ if ((ret == IRQ_TYPE_LEVEL_LOW) || (ret == IRQ_TYPE_EDGE_FALLING)) {
+ wl1271_info("using inverted interrupt logic: %d", ret);
+ ret = wlcore_set_partition(wl,
+ &wl->ptable[PART_TOP_PRCM_ELP_SOC]);
+ if (ret < 0)
+ goto out;
+
+ ret = wl18xx_top_reg_read(wl, TOP_FN0_CCCR_REG_32, &irq_invert);
+ if (ret < 0)
+ goto out;
+
+ irq_invert |= BIT(1);
+ ret = wl18xx_top_reg_write(wl, TOP_FN0_CCCR_REG_32, irq_invert);
+ if (ret < 0)
+ goto out;
+
+ ret = wlcore_set_partition(wl, &wl->ptable[PART_PHY_INIT]);
+ }
out:
return ret;