[PATCH v4 8/9] PCI: imx6: Add i.MX8MQ i.MX8Q and i.MX95 PCIe PM support

Richard Zhu
2024-10-15T08:57:36Z

Add iMX8MQ i.MX8Q and i.MX95 PCIe suspend/resume support.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
drivers/pci/controller/dwc/pci-imx6.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index baa853d84b4d..1f873ac6eed2 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -1497,7 +1497,8 @@ static const struct imx_pcie_drvdata drvdata[] = {
[IMX8MQ] = {
.variant = IMX8MQ,
.flags = IMX_PCIE_FLAG_HAS_APP_RESET |
- IMX_PCIE_FLAG_HAS_PHY_RESET,
+ IMX_PCIE_FLAG_HAS_PHY_RESET |
+ IMX_PCIE_FLAG_SUPPORTS_SUSPEND,
.gpr = "fsl,imx8mq-iomuxc-gpr",
.clk_names = imx8mq_clks,
.clks_cnt = ARRAY_SIZE(imx8mq_clks),
@@ -1535,13 +1536,15 @@ static const struct imx_pcie_drvdata drvdata[] = {
[IMX8Q] = {
.variant = IMX8Q,
.flags = IMX_PCIE_FLAG_HAS_PHYDRV |
- IMX_PCIE_FLAG_CPU_ADDR_FIXUP,
+ IMX_PCIE_FLAG_CPU_ADDR_FIXUP |
+ IMX_PCIE_FLAG_SUPPORTS_SUSPEND,
.clk_names = imx8q_clks,
.clks_cnt = ARRAY_SIZE(imx8q_clks),
},
[IMX95] = {
.variant = IMX95,
- .flags = IMX_PCIE_FLAG_HAS_SERDES,
+ .flags = IMX_PCIE_FLAG_HAS_SERDES |
+ IMX_PCIE_FLAG_SUPPORTS_SUSPEND,
.clk_names = imx95_clks,
.clks_cnt = ARRAY_SIZE(imx95_clks),
.ltssm_off = IMX95_PE0_GEN_CTRL_3,
--
2.37.1