android/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

ath10k: do not enforce interrupt trigger type

Browse Source 
[ Upstream commit 1ee6c5abebd3cacf2ac4378d0ed4f57fd4850421 ]

Interrupt line can be configured on different hardware in different way,
even inverted.  Therefore driver should not enforce specific trigger
type - edge rising - but instead rely on Devicetree to configure it.

All Qualcomm DTSI with WCN3990 define the interrupt type as level high,
so the mismatch between DTSI and driver causes rebind issues:

  $ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/unbind
  $ echo 18800000.wifi > /sys/bus/platform/drivers/ath10k_snoc/bind
  [   44.763114] irq: type mismatch, failed to map hwirq-446 for interrupt-controller@17a00000!
  [   44.763130] ath10k_snoc 18800000.wifi: error -ENXIO: IRQ index 0 not found
  [   44.763140] ath10k_snoc 18800000.wifi: failed to initialize resource: -6

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.3.2.0.c8-00009-QCAHLSWSC8180XMTPLZ-1
Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1

Fixes: c963a683e7 ("ath10k: add resource init and deinit for WCN3990")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220513151516.357549-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2022-05-18 10:27:26 +03:00 committed by Greg Kroah-Hartman
parent bcc05372a2
commit fd98ccda50
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/wireless/ath/ath10k/snoc.c
View File

@ -1205,13 +1205,12 @@ static void ath10k_snoc_init_napi(struct ath10k *ar)
static int ath10k_snoc_request_irq(struct ath10k *ar)
{
struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
int irqflags = IRQF_TRIGGER_RISING;
int ret, id;
for (id = 0; id < CE_COUNT_MAX; id++) {
ret = request_irq(ar_snoc->ce_irqs[id].irq_line,
ath10k_snoc_per_engine_handler,
irqflags, ce_name[id], ar);
ath10k_snoc_per_engine_handler, 0,
ce_name[id], ar);
if (ret) {
ath10k_err(ar,
"failed to register IRQ handler for CE %d: %d\n",