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phy: rockchip-pcie: Refactor mutex handling in rockchip_pcie_phy_power_off()

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Refactor the mutex handling in the rockchip_pcie_phy_power_off() function
to improve code readability and maintainability. The goto statement has
been removed, and the mutex_unlock call is now directly within the
conditional block.

Return the result of reset_control_assert() function, with 0 indicating
success and an error code indicating failure

Signed-off-by: Anand Moon <linux.amoon@gmail.com>
Link: https://lore.kernel.org/r/20241012071919.3726-5-linux.amoon@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Anand Moon 2024-10-12 12:49:06 +05:30 committed by Vinod Koul
parent cb0ba26ad0
commit bb70d1aae5
1 changed files with 12 additions and 14 deletions
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26
drivers/phy/rockchip/phy-rockchip-pcie.c
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@ -132,26 +132,24 @@ static int rockchip_pcie_phy_power_off(struct phy *phy)
PHY_LANE_IDLE_MASK,
PHY_LANE_IDLE_A_SHIFT + inst->index));
if (--rk_phy->pwr_cnt)
goto err_out;
if (--rk_phy->pwr_cnt) {
mutex_unlock(&rk_phy->pcie_mutex);
return 0;
}
err = reset_control_assert(rk_phy->phy_rst);
if (err) {
dev_err(&phy->dev, "assert phy_rst err %d\n", err);
goto err_restore;
rk_phy->pwr_cnt++;
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));
mutex_unlock(&rk_phy->pcie_mutex);
return err;
}
err_out:
mutex_unlock(&rk_phy->pcie_mutex);
return 0;
err_restore:
rk_phy->pwr_cnt++;
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));
mutex_unlock(&rk_phy->pcie_mutex);
return err;
}