[RFC PATCH v6 3/4] phy: rockchip-pcie: Enable all four lanes if required
Geraldo Nascimento
geraldogabriel at gmail.com
Fri Jun 20 18:48:45 PDT 2025
Current code enables only Lane 0 because pwr_cnt will be incremented on
first call to the function. Let's reorder the enablement code to enable
all 4 lanes through GRF.
Signed-off-by: Geraldo Nascimento <geraldogabriel at gmail.com>
---
drivers/phy/rockchip/phy-rockchip-pcie.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/phy/rockchip/phy-rockchip-pcie.c b/drivers/phy/rockchip/phy-rockchip-pcie.c
index bd44af36c67a..f22ffb41cdc2 100644
--- a/drivers/phy/rockchip/phy-rockchip-pcie.c
+++ b/drivers/phy/rockchip/phy-rockchip-pcie.c
@@ -160,6 +160,12 @@ static int rockchip_pcie_phy_power_on(struct phy *phy)
guard(mutex)(&rk_phy->pcie_mutex);
+ regmap_write(rk_phy->reg_base,
+ rk_phy->phy_data->pcie_laneoff,
+ HIWORD_UPDATE(!PHY_LANE_IDLE_OFF,
+ PHY_LANE_IDLE_MASK,
+ PHY_LANE_IDLE_A_SHIFT + inst->index));
+
if (rk_phy->pwr_cnt++) {
return 0;
}
@@ -176,12 +182,6 @@ static int rockchip_pcie_phy_power_on(struct phy *phy)
PHY_CFG_ADDR_MASK,
PHY_CFG_ADDR_SHIFT));
- regmap_write(rk_phy->reg_base,
- rk_phy->phy_data->pcie_laneoff,
- HIWORD_UPDATE(!PHY_LANE_IDLE_OFF,
- PHY_LANE_IDLE_MASK,
- PHY_LANE_IDLE_A_SHIFT + inst->index));
-
/*
* No documented timeout value for phy operation below,
* so we make it large enough here. And we use loop-break
--
2.49.0
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