[PATCH v2 3/4] irqchip/sg2042-msi: Fix broken affinity setting

[Inochi Amaoto <inochiama@gmail.com>]

When using NVME on SG2044, the NVME always complains "I/O tag XXX
(XXX) QID XX timeout, completion polled", which is caused by the
broken handler of the sg2042-msi driver.

As PLIC driver can only set affinity when enabling, the sg2042-msi
does not properly handled affinity setting previously and enables
irq in an unexpected executing path.

Since the PCI template domain supports irq_startup()/irq_shutdown(),
set irq_chip_[startup/shutdown]_parent() for irq_startup() and
irq_shutdown(). So the irq can be started properly.

Fixes: e96b93a97c90 ("irqchip/sg2042-msi: Add the Sophgo SG2044 MSI interrupt controller")
Reported-by: Han Gao <rabenda.cn@gmail.com>
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
---
 drivers/irqchip/irq-sg2042-msi.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/irqchip/irq-sg2042-msi.c b/drivers/irqchip/irq-sg2042-msi.c
index bcfddc51bc6a..2fd4d94f9bd7 100644
--- a/drivers/irqchip/irq-sg2042-msi.c
+++ b/drivers/irqchip/irq-sg2042-msi.c
@@ -85,6 +85,8 @@ static void sg2042_msi_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *m
 
 static const struct irq_chip sg2042_msi_middle_irq_chip = {
 	.name			= "SG2042 MSI",
+	.irq_startup		= irq_chip_startup_parent,
+	.irq_shutdown		= irq_chip_shutdown_parent,
 	.irq_ack		= sg2042_msi_irq_ack,
 	.irq_mask		= irq_chip_mask_parent,
 	.irq_unmask		= irq_chip_unmask_parent,
@@ -114,6 +116,8 @@ static void sg2044_msi_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *m
 
 static struct irq_chip sg2044_msi_middle_irq_chip = {
 	.name			= "SG2044 MSI",
+	.irq_startup		= irq_chip_startup_parent,
+	.irq_shutdown		= irq_chip_shutdown_parent,
 	.irq_ack		= sg2044_msi_irq_ack,
 	.irq_mask		= irq_chip_mask_parent,
 	.irq_unmask		= irq_chip_unmask_parent,
@@ -185,8 +189,10 @@ static const struct irq_domain_ops sg204x_msi_middle_domain_ops = {
 	.select	= msi_lib_irq_domain_select,
 };
 
-#define SG2042_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS |	\
-				   MSI_FLAG_USE_DEF_CHIP_OPS)
+#define SG2042_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS |		\
+				   MSI_FLAG_USE_DEF_CHIP_OPS |		\
+				   MSI_FLAG_PCI_MSI_MASK_PARENT |	\
+				   MSI_FLAG_PCI_MSI_STARTUP_PARENT)
 
 #define SG2042_MSI_FLAGS_SUPPORTED MSI_GENERIC_FLAGS_MASK
 
@@ -200,10 +206,12 @@ static const struct msi_parent_ops sg2042_msi_parent_ops = {
 	.init_dev_msi_info	= msi_lib_init_dev_msi_info,
 };
 
-#define SG2044_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS |	\
-				   MSI_FLAG_USE_DEF_CHIP_OPS)
+#define SG2044_MSI_FLAGS_REQUIRED (MSI_FLAG_USE_DEF_DOM_OPS |		\
+				   MSI_FLAG_USE_DEF_CHIP_OPS |		\
+				   MSI_FLAG_PCI_MSI_MASK_PARENT |	\
+				   MSI_FLAG_PCI_MSI_STARTUP_PARENT)
 
-#define SG2044_MSI_FLAGS_SUPPORTED (MSI_GENERIC_FLAGS_MASK |	\
+#define SG2044_MSI_FLAGS_SUPPORTED (MSI_GENERIC_FLAGS_MASK |		\
 				    MSI_FLAG_PCI_MSIX)
 
 static const struct msi_parent_ops sg2044_msi_parent_ops = {
-- 
2.50.1