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phy: airoha: adjust initialization delay in airoha_pcie_phy_init()

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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>
This commit is contained in:
Lorenzo Bianconi
2024-08-06 17:55:48 +02:00
committed by Vinod Koul
parent 45a4237b9b
commit 7f7315db3d
1 changed files with 5 additions and 1 deletions
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6
drivers/phy/phy-airoha-pcie.c
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@@ -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;
}