stable inclusion
from stable-5.10.52
commit 12d84de59da09da82e2c020de701affcc1e1b11e
bugzilla: 175542 https://gitee.com/openeuler/kernel/issues/I4DTKU

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=12d84de59da09da82e2c020de701affcc1e1b11e

--------------------------------

[ Upstream commit 655832d1 ]

The legacy PCI interrupt lines need to be enabled using PCIE_APP_IRNEN bits
13 (INTA), 14 (INTB), 15 (INTC) and 16 (INTD). The old code however was
taking (for example) "13" as raw value instead of taking BIT(13).  Define
the legacy PCI interrupt bits using the BIT() macro and then use these in
PCIE_APP_IRN_INT.

Link: https://lore.kernel.org/r/20210106135540.48420-1-martin.blumenstingl@googlemail.com
Fixes: ed22aaae ("PCI: dwc: intel: PCIe RC controller driver")
Signed-off-by: NMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NRahul Tanwar <rtanwar@maxlinear.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NWeilong Chen <chenweilong@huawei.com>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>