[RFC PATCH 2/2] PCI: rockchip-host: drop wait on PERST# toggle

Geraldo Nascimento
2025-11-03T06:27:32Z

With this change PCIe will complete link-training with a known quirky
device - Samsung OEM PM981a SSD. This is completely against the PCIe
spec and yet it works as long as the power regulator for 3v3 PCIe
power is not defined as always-on or boot-on.

Signed-off-by: Geraldo Nascimento <geraldogabriel@gmail.com>
---
drivers/pci/controller/pcie-rockchip-host.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/pci/controller/pcie-rockchip-host.c b/drivers/pci/controller/pcie-rockchip-host.c
index ee1822ca01db..6add0faf6dc9 100644
--- a/drivers/pci/controller/pcie-rockchip-host.c
+++ b/drivers/pci/controller/pcie-rockchip-host.c
@@ -314,7 +314,6 @@ static int rockchip_pcie_host_init_port(struct rockchip_pcie *rockchip)
rockchip_pcie_write(rockchip, PCIE_CLIENT_LINK_TRAIN_ENABLE,
PCIE_CLIENT_CONFIG);

- msleep(PCIE_T_PVPERL_MS);
gpiod_set_value_cansleep(rockchip->perst_gpio, 1);

msleep(PCIE_RESET_CONFIG_WAIT_MS);
--
2.49.0