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From: Bjorn Helgaas <helgaas-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Shawn Lin <shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
Cc: Bjorn Helgaas <bhelgaas-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
	Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	linux-pci-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	Wenrui Li <wenrui.li-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
	Brian Norris
	<briannorris-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
	Jeffy Chen <jeffy.chen-TNX95d0MmH7DzftRWevZcw@public.gmane.org>,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [RESEND PATCH 1/2] PCI: rockchip: cleanup bit definition for PCIE_RC_CONFIG_LCS
Date: Mon, 14 Nov 2016 16:50:19 -0600	[thread overview]
Message-ID: <20161114225019.GM9868@bhelgaas-glaptop.roam.corp.google.com> (raw)
In-Reply-To: <1479096666-112668-1-git-send-email-shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>

On Mon, Nov 14, 2016 at 12:11:05PM +0800, Shawn Lin wrote:
> PCIE_RC_CONFIG_LCS contains control and status bits specific
> to the PCIe link. The layout for this register looks the same
> as the existed PCI_EXP_LNKCTL and PCI_EXP_LNKSTA. So let's
> reuse them.
> 
> Signed-off-by: Shawn Lin <shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>

I applied both to pci/host-rockchip, thanks!

> ---
> 
>  drivers/pci/host/pcie-rockchip.c | 14 ++++----------
>  1 file changed, 4 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
> index 7f238af..1dba698 100644
> --- a/drivers/pci/host/pcie-rockchip.c
> +++ b/drivers/pci/host/pcie-rockchip.c
> @@ -141,12 +141,6 @@
>  #define   PCIE_RC_CONFIG_DCR_CSPL_LIMIT		0xff
>  #define   PCIE_RC_CONFIG_DCR_CPLS_SHIFT		26
>  #define PCIE_RC_CONFIG_LCS		(PCIE_RC_CONFIG_BASE + 0xd0)
> -#define   PCIE_RC_CONFIG_LCS_RETRAIN_LINK	BIT(5)
> -#define   PCIE_RC_CONFIG_LCS_CCC		BIT(6)
> -#define   PCIE_RC_CONFIG_LCS_LBMIE		BIT(10)
> -#define   PCIE_RC_CONFIG_LCS_LABIE		BIT(11)
> -#define   PCIE_RC_CONFIG_LCS_LBMS		BIT(30)
> -#define   PCIE_RC_CONFIG_LCS_LAMS		BIT(31)
>  #define PCIE_RC_CONFIG_L1_SUBSTATE_CTRL2 (PCIE_RC_CONFIG_BASE + 0x90c)
>  #define PCIE_RC_CONFIG_THP_CAP		(PCIE_RC_CONFIG_BASE + 0x274)
>  #define   PCIE_RC_CONFIG_THP_CAP_NEXT_MASK	GENMASK(31, 20)
> @@ -229,7 +223,7 @@ static void rockchip_pcie_enable_bw_int(struct rockchip_pcie *rockchip)
>  	u32 status;
>  
>  	status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS);
> -	status |= (PCIE_RC_CONFIG_LCS_LBMIE | PCIE_RC_CONFIG_LCS_LABIE);
> +	status |= (PCI_EXP_LNKCTL_LBMIE | PCI_EXP_LNKCTL_LABIE);
>  	rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS);
>  }
>  
> @@ -238,7 +232,7 @@ static void rockchip_pcie_clr_bw_int(struct rockchip_pcie *rockchip)
>  	u32 status;
>  
>  	status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS);
> -	status |= (PCIE_RC_CONFIG_LCS_LBMS | PCIE_RC_CONFIG_LCS_LAMS);
> +	status |= (PCI_EXP_LNKSTA_LBMS | PCI_EXP_LNKSTA_LABS) << 16;
>  	rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS);
>  }
>  
> @@ -540,7 +534,7 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
>  
>  	/* Set RC's clock architecture as common clock */
>  	status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS);
> -	status |= PCIE_RC_CONFIG_LCS_CCC;
> +	status |= PCI_EXP_LNKCTL_CCC;
>  	rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS);
>  
>  	/* Enable Gen1 training */
> @@ -575,7 +569,7 @@ static int rockchip_pcie_init_port(struct rockchip_pcie *rockchip)
>  		 * gen1 finished.
>  		 */
>  		status = rockchip_pcie_read(rockchip, PCIE_RC_CONFIG_LCS);
> -		status |= PCIE_RC_CONFIG_LCS_RETRAIN_LINK;
> +		status |= PCI_EXP_LNKCTL_RL;
>  		rockchip_pcie_write(rockchip, status, PCIE_RC_CONFIG_LCS);
>  
>  		timeout = jiffies + msecs_to_jiffies(500);
> -- 
> 1.9.1
> 
> 
> --
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      parent reply	other threads:[~2016-11-14 22:50 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-14  4:11 [RESEND PATCH 1/2] PCI: rockchip: cleanup bit definition for PCIE_RC_CONFIG_LCS Shawn Lin
     [not found] ` <1479096666-112668-1-git-send-email-shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-11-14  4:11   ` [RESEND PATCH 2/2] PCI: rockchip: Add quirk to disable RC's ASPM L0s Shawn Lin
     [not found]     ` <1479096666-112668-2-git-send-email-shawn.lin-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-11-15 22:26       ` Rob Herring
2016-11-16  0:52         ` Shawn Lin
2016-11-29 15:34       ` Rob Herring
     [not found]         ` <CAL_JsqKkK15Jb3tWh1Mw7RU6d8=6RYMjSEs-c4EQySaUAwnFUA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-11-29 17:25           ` Bjorn Helgaas
2016-11-30  0:41           ` Shawn Lin
2016-11-14 22:26   ` [RESEND PATCH 1/2] PCI: rockchip: cleanup bit definition for PCIE_RC_CONFIG_LCS Bjorn Helgaas
     [not found]     ` <20161114222604.GJ9868-1RhO1Y9PlrlHTL0Zs8A6p5iNqAH0jzoTYJqu5kTmcBRl57MIdRCFDg@public.gmane.org>
2016-11-15  1:09       ` Shawn Lin
2016-11-14 22:50   ` Bjorn Helgaas [this message]

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