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From: Anand Moon <linux.amoon@gmail.com>
To: Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	linux-phy@lists.infradead.org (open list:GENERIC PHY FRAMEWORK),
	linux-arm-kernel@lists.infradead.org (moderated
	list:ARM/Rockchip SoC support),
	linux-rockchip@lists.infradead.org (open list:ARM/Rockchip SoC
	support), linux-kernel@vger.kernel.org (open list)
Cc: Anand Moon <linux.amoon@gmail.com>,
	Dan Carpenter <dan.carpenter@linaro.org>
Subject: [PATCH v3 4/6] phy: rockchip-pcie: Refactor mutex handling in rockchip_pcie_phy_power_off()
Date: Sat, 12 Oct 2024 12:49:06 +0530	[thread overview]
Message-ID: <20241012071919.3726-5-linux.amoon@gmail.com> (raw)
In-Reply-To: <20241012071919.3726-1-linux.amoon@gmail.com>

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>
---
v3: New patch.
---
 drivers/phy/rockchip/phy-rockchip-pcie.c | 26 +++++++++++-------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-pcie.c b/drivers/phy/rockchip/phy-rockchip-pcie.c
index e60f24b0b363..c84a3c209315 100644
--- a/drivers/phy/rockchip/phy-rockchip-pcie.c
+++ b/drivers/phy/rockchip/phy-rockchip-pcie.c
@@ -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;
 }
-- 
2.44.0


-- 
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy

WARNING: multiple messages have this Message-ID (diff)
From: Anand Moon <linux.amoon@gmail.com>
To: Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	linux-phy@lists.infradead.org (open list:GENERIC PHY FRAMEWORK),
	linux-arm-kernel@lists.infradead.org (moderated
	list:ARM/Rockchip SoC support),
	linux-rockchip@lists.infradead.org (open list:ARM/Rockchip SoC
	support), linux-kernel@vger.kernel.org (open list)
Cc: Anand Moon <linux.amoon@gmail.com>,
	Dan Carpenter <dan.carpenter@linaro.org>
Subject: [PATCH v3 4/6] phy: rockchip-pcie: Refactor mutex handling in rockchip_pcie_phy_power_off()
Date: Sat, 12 Oct 2024 12:49:06 +0530	[thread overview]
Message-ID: <20241012071919.3726-5-linux.amoon@gmail.com> (raw)
In-Reply-To: <20241012071919.3726-1-linux.amoon@gmail.com>

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>
---
v3: New patch.
---
 drivers/phy/rockchip/phy-rockchip-pcie.c | 26 +++++++++++-------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-pcie.c b/drivers/phy/rockchip/phy-rockchip-pcie.c
index e60f24b0b363..c84a3c209315 100644
--- a/drivers/phy/rockchip/phy-rockchip-pcie.c
+++ b/drivers/phy/rockchip/phy-rockchip-pcie.c
@@ -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;
 }
-- 
2.44.0


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

WARNING: multiple messages have this Message-ID (diff)
From: Anand Moon <linux.amoon@gmail.com>
To: Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	Heiko Stuebner <heiko@sntech.de>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	linux-phy@lists.infradead.org (open list:GENERIC PHY FRAMEWORK),
	linux-arm-kernel@lists.infradead.org (moderated
	list:ARM/Rockchip SoC support),
	linux-rockchip@lists.infradead.org (open list:ARM/Rockchip SoC
	support), linux-kernel@vger.kernel.org (open list)
Cc: Anand Moon <linux.amoon@gmail.com>,
	Dan Carpenter <dan.carpenter@linaro.org>
Subject: [PATCH v3 4/6] phy: rockchip-pcie: Refactor mutex handling in rockchip_pcie_phy_power_off()
Date: Sat, 12 Oct 2024 12:49:06 +0530	[thread overview]
Message-ID: <20241012071919.3726-5-linux.amoon@gmail.com> (raw)
In-Reply-To: <20241012071919.3726-1-linux.amoon@gmail.com>

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>
---
v3: New patch.
---
 drivers/phy/rockchip/phy-rockchip-pcie.c | 26 +++++++++++-------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/drivers/phy/rockchip/phy-rockchip-pcie.c b/drivers/phy/rockchip/phy-rockchip-pcie.c
index e60f24b0b363..c84a3c209315 100644
--- a/drivers/phy/rockchip/phy-rockchip-pcie.c
+++ b/drivers/phy/rockchip/phy-rockchip-pcie.c
@@ -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;
 }
-- 
2.44.0



  parent reply	other threads:[~2024-10-12  7:25 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-12  7:19 [PATCH v3 0/6] RK3399: PCie Phy using new helper function Anand Moon
2024-10-12  7:19 ` Anand Moon
2024-10-12  7:19 ` Anand Moon
2024-10-12  7:19 ` [PATCH v3 1/6] phy: rockchip-pcie: Simplify error handling with dev_err_probe() Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19 ` [PATCH v3 2/6] phy: rockchip-pcie: Use devm_clk_get_enabled() helper Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19 ` [PATCH v3 3/6] phy: rockchip-pcie: Use regmap_read_poll_timeout() for PCIe reference clk PLL status Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19 ` Anand Moon [this message]
2024-10-12  7:19   ` [PATCH v3 4/6] phy: rockchip-pcie: Refactor mutex handling in rockchip_pcie_phy_power_off() Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19 ` [PATCH v3 5/6] phy: rockchip-pcie: Refactor mutex handling in rockchip_pcie_phy_power_on() Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19 ` [PATCH v3 6/6] phy: rockchip-pcie: Use guard notation when acquiring mutex Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-10-12  7:19   ` Anand Moon
2024-12-02 16:01 ` [PATCH v3 0/6] RK3399: PCie Phy using new helper function Anand Moon
2024-12-02 16:01   ` Anand Moon
2024-12-02 16:01   ` Anand Moon
2024-12-08 17:02 ` Vinod Koul
2024-12-08 17:02   ` Vinod Koul
2024-12-08 17:02   ` Vinod Koul

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