diff mbox series

[v2,2/4] PCI: mediatek-gen3: rely on clk_bulk_prepare_enable() in mtk_pcie_en7581_power_up()

Message ID 20241109-pcie-en7581-fixes-v2-2-0ea3a4af994f@kernel.org
State New
Headers show
Series PCI: mediatek-gen3: mtk_pcie_en7581_power_up() code refactoring | expand

Commit Message

Lorenzo Bianconi Nov. 9, 2024, 9:28 a.m. UTC
Squash clk_bulk_prepare() and clk_bulk_enable() in
clk_bulk_prepare_enable() in mtk_pcie_en7581_power_up() routine

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
 drivers/pci/controller/pcie-mediatek-gen3.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

Comments

Manivannan Sadhasivam Nov. 15, 2024, 8:59 a.m. UTC | #1
On Sat, Nov 09, 2024 at 10:28:38AM +0100, Lorenzo Bianconi wrote:
> Squash clk_bulk_prepare() and clk_bulk_enable() in
> clk_bulk_prepare_enable() in mtk_pcie_en7581_power_up() routine
> 

Perhaps use something like,

"Replace clk_bulk_prepare() and clk_bulk_enable() with clk_bulk_prepare_enable()
in mtk_pcie_en7581_power_up()."

'Squash' doesn't sound right since you are not squashing any code.

> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
>  drivers/pci/controller/pcie-mediatek-gen3.c | 14 +++-----------
>  1 file changed, 3 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/pci/controller/pcie-mediatek-gen3.c b/drivers/pci/controller/pcie-mediatek-gen3.c
> index 0fac0b9fd785e463d26d29d695b923db41eef9cc..8c8c733a145634cdbfefd339f4a692f25a6e24de 100644
> --- a/drivers/pci/controller/pcie-mediatek-gen3.c
> +++ b/drivers/pci/controller/pcie-mediatek-gen3.c
> @@ -903,12 +903,6 @@ static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
>  	pm_runtime_enable(dev);
>  	pm_runtime_get_sync(dev);
>  
> -	err = clk_bulk_prepare(pcie->num_clks, pcie->clks);
> -	if (err) {
> -		dev_err(dev, "failed to prepare clock\n");
> -		goto err_clk_prepare;
> -	}
> -
>  	val = FIELD_PREP(PCIE_VAL_LN0_DOWNSTREAM, 0x47) |
>  	      FIELD_PREP(PCIE_VAL_LN1_DOWNSTREAM, 0x47) |
>  	      FIELD_PREP(PCIE_VAL_LN0_UPSTREAM, 0x41) |
> @@ -921,17 +915,15 @@ static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
>  	      FIELD_PREP(PCIE_K_FINETUNE_MAX, 0xf);
>  	writel_relaxed(val, pcie->base + PCIE_PIPE4_PIE8_REG);
>  
> -	err = clk_bulk_enable(pcie->num_clks, pcie->clks);
> +	err = clk_bulk_prepare_enable(pcie->num_clks, pcie->clks);
>  	if (err) {
>  		dev_err(dev, "failed to prepare clock\n");
> -		goto err_clk_enable;
> +		goto err_clk_init;

err_clk_prepare_enable?

But I usually prefer err labels to be named after their purpose. Like here,
'err_runtime_put_reset' so it gives the reader a sense of what the label is
supposed to do.

However, to keep the existing sematics, you can just name it
err_clk_prepare_enable.

- Mani

>  	}
>  
>  	return 0;
>  
> -err_clk_enable:
> -	clk_bulk_unprepare(pcie->num_clks, pcie->clks);
> -err_clk_prepare:
> +err_clk_init:
>  	pm_runtime_put_sync(dev);
>  	pm_runtime_disable(dev);
>  	reset_control_assert(pcie->mac_reset);
> 
> -- 
> 2.47.0
>
diff mbox series

Patch

diff --git a/drivers/pci/controller/pcie-mediatek-gen3.c b/drivers/pci/controller/pcie-mediatek-gen3.c
index 0fac0b9fd785e463d26d29d695b923db41eef9cc..8c8c733a145634cdbfefd339f4a692f25a6e24de 100644
--- a/drivers/pci/controller/pcie-mediatek-gen3.c
+++ b/drivers/pci/controller/pcie-mediatek-gen3.c
@@ -903,12 +903,6 @@  static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
 	pm_runtime_enable(dev);
 	pm_runtime_get_sync(dev);
 
-	err = clk_bulk_prepare(pcie->num_clks, pcie->clks);
-	if (err) {
-		dev_err(dev, "failed to prepare clock\n");
-		goto err_clk_prepare;
-	}
-
 	val = FIELD_PREP(PCIE_VAL_LN0_DOWNSTREAM, 0x47) |
 	      FIELD_PREP(PCIE_VAL_LN1_DOWNSTREAM, 0x47) |
 	      FIELD_PREP(PCIE_VAL_LN0_UPSTREAM, 0x41) |
@@ -921,17 +915,15 @@  static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
 	      FIELD_PREP(PCIE_K_FINETUNE_MAX, 0xf);
 	writel_relaxed(val, pcie->base + PCIE_PIPE4_PIE8_REG);
 
-	err = clk_bulk_enable(pcie->num_clks, pcie->clks);
+	err = clk_bulk_prepare_enable(pcie->num_clks, pcie->clks);
 	if (err) {
 		dev_err(dev, "failed to prepare clock\n");
-		goto err_clk_enable;
+		goto err_clk_init;
 	}
 
 	return 0;
 
-err_clk_enable:
-	clk_bulk_unprepare(pcie->num_clks, pcie->clks);
-err_clk_prepare:
+err_clk_init:
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
 	reset_control_assert(pcie->mac_reset);