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author | 2024-08-06 17:55:48 +0200 | |
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committer | 2024-08-29 23:48:51 +0530 | |
commit | 7f7315db3d262298ab33d198d3f0b09cabfa7b6b (patch) | |
tree | 6f75218183146208cc0e9312f218f8df724add92 | |
parent | dt-bindings: phy: socionext,uniphier: add top-level constraints (diff) | |
download | wireguard-linux-7f7315db3d262298ab33d198d3f0b09cabfa7b6b.tar.xz wireguard-linux-7f7315db3d262298ab33d198d3f0b09cabfa7b6b.zip |
phy: airoha: adjust initialization delay in airoha_pcie_phy_init()
Align phy-pcie initialization delay to the vendor sdk in
airoha_pcie_phy_init routine and allow the hw to complete required
configuration before proceeding
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/8af6f27857619f1e0dd227f08b8584ae8fb22fb2.1722959625.git.lorenzo@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to '')
-rw-r--r-- | drivers/phy/phy-airoha-pcie.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/phy/phy-airoha-pcie.c b/drivers/phy/phy-airoha-pcie.c index bd3edaa986c8..1e410eb41058 100644 --- a/drivers/phy/phy-airoha-pcie.c +++ b/drivers/phy/phy-airoha-pcie.c @@ -18,6 +18,9 @@ #define LEQ_LEN_CTRL_MAX_VAL 7 #define FREQ_LOCK_MAX_ATTEMPT 10 +/* PCIe-PHY initialization time in ms needed by the hw to complete */ +#define PHY_HW_INIT_TIME_MS 30 + enum airoha_pcie_port_gen { PCIE_PORT_GEN1 = 1, PCIE_PORT_GEN2, @@ -1181,7 +1184,8 @@ static int airoha_pcie_phy_init(struct phy *phy) airoha_phy_pma1_set_bits(pcie_phy, REG_PCIE_PMA_SS_DA_XPON_PWDB0, PCIE_DA_XPON_CDR_PR_PWDB); - usleep_range(100, 200); + /* Wait for the PCIe PHY to complete initialization before returning */ + msleep(PHY_HW_INIT_TIME_MS); return 0; } |