[PATCH RESEND v3 05/10] PCI: dwc: Drop duplicated fast-link-mode flag unsetting

Serge Semin posted 10 patches 2 years, 10 months ago
There is a newer version of this series
[PATCH RESEND v3 05/10] PCI: dwc: Drop duplicated fast-link-mode flag unsetting
Posted by Serge Semin 2 years, 10 months ago
Most likely by mistake the PORT_LINK_FAST_LINK_MODE flag unsetting was
added twice in the commit cff9244432e8 ("PCI: dwc: Ensure FAST_LINK_MODE
is cleared"): first it is cleared right after the content of the
PCIE_PORT_LINK_CONTROL register is read, second it's cleared in the
framework of the link-mode initialization procedure. The later action is
redundant. Let's drop it.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
---
 drivers/pci/controller/dwc/pcie-designware.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
index 8e33e6e59e68..e55b7b387eb6 100644
--- a/drivers/pci/controller/dwc/pcie-designware.c
+++ b/drivers/pci/controller/dwc/pcie-designware.c
@@ -1019,7 +1019,6 @@ void dw_pcie_setup(struct dw_pcie *pci)
 	}
 
 	/* Set the number of lanes */
-	val &= ~PORT_LINK_FAST_LINK_MODE;
 	val &= ~PORT_LINK_MODE_MASK;
 	switch (pci->num_lanes) {
 	case 1:
-- 
2.40.0
Re: [PATCH RESEND v3 05/10] PCI: dwc: Drop duplicated fast-link-mode flag unsetting
Posted by Manivannan Sadhasivam 2 years, 10 months ago
On Tue, Apr 11, 2023 at 06:39:23AM +0300, Serge Semin wrote:
> Most likely by mistake the PORT_LINK_FAST_LINK_MODE flag unsetting was
> added twice in the commit cff9244432e8 ("PCI: dwc: Ensure FAST_LINK_MODE
> is cleared"): first it is cleared right after the content of the
> PCIE_PORT_LINK_CONTROL register is read, second it's cleared in the
> framework of the link-mode initialization procedure. The later action is
> redundant. Let's drop it.
> 
> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

- Mani

> ---
>  drivers/pci/controller/dwc/pcie-designware.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
> index 8e33e6e59e68..e55b7b387eb6 100644
> --- a/drivers/pci/controller/dwc/pcie-designware.c
> +++ b/drivers/pci/controller/dwc/pcie-designware.c
> @@ -1019,7 +1019,6 @@ void dw_pcie_setup(struct dw_pcie *pci)
>  	}
>  
>  	/* Set the number of lanes */
> -	val &= ~PORT_LINK_FAST_LINK_MODE;
>  	val &= ~PORT_LINK_MODE_MASK;
>  	switch (pci->num_lanes) {
>  	case 1:
> -- 
> 2.40.0
> 
> 

-- 
மணிவண்ணன் சதாசிவம்