target/linux/ath79/patches-6.6/810-ath79-ignore-the-abused-interrupt-map-on-pcie-node.patch

   1 From: Shiji Yang <yangshiji66@outlook.com>
   2 Date: Wed, 31 May 2023 00:15:23 +0000
   3 Subject: [PATCH] ath79: ignore the abused interrupt-map on pcie node
   4
   5 ath79 PCIe interrupt controller has stopped working correctly. This
   6 is because the DT exposing a non-sensical interrupt-map property,
   7 and their drivers relying on the kernel ignoring this property[1].
   8
   9 This patch fix the pcie init error:
  10 ath9k 0000:00:00.0: of_irq_parse_pci: failed with rc=-14
  11
  12 Notice:
  13 This is just a workaround, not a fix. PCIe driver and related dts
  14 node need to be rewritten.
  15
  16 [1] https://lore.kernel.org/all/20211201114102.13446-1-maz@kernel.org/
  17
  18 Signed-off-by: Shiji Yang <yangshiji66@outlook.com>
  19 ---
  20  drivers/of/irq.c | 2 ++
  21  1 file changed, 2 insertions(+)
  22
  23 --- a/drivers/of/irq.c
  24 +++ b/drivers/of/irq.c
  25 @@ -86,6 +86,8 @@ EXPORT_SYMBOL_GPL(of_irq_find_parent);
  26   * drawing board.
  27   */
  28  static const char * const of_irq_imap_abusers[] = {
  29 +       "qca,ar7100-pci",
  30 +       "qcom,ar7240-pci",
  31         "CBEA,platform-spider-pic",
  32         "sti,platform-spider-pic",
  33         "realtek,rtl-intc",