linux-kernel - Re: [PATCH v2 3/4] PCI: pciehp: Replace pciehp_set_attention

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Message-ID: <50d00be6-c904-af0c-2704-389965aae666@linux.intel.com>
Date:   Mon, 12 Aug 2019 11:28:30 -0700
From:   sathyanarayanan kuppuswamy 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
To:     Denis Efremov <efremov@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     Lukas Wunner <lukas@...ner.de>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/4] PCI: pciehp: Replace pciehp_set_attention_status()

Hi,

On 8/11/19 12:59 PM, Denis Efremov wrote:
> This patch replaces pciehp_set_attention_status() with
> pciehp_set_indicators().
>
> Signed-off-by: Denis Efremov <efremov@...ux.com>
Reviewed-by: Kuppuswamy Sathyanarayanan 
<sathyanarayanan.kuppuswamy@...ux.intel.com>
> ---
>   drivers/pci/hotplug/pciehp.h     |  4 +++-
>   drivers/pci/hotplug/pciehp_hpc.c | 25 -------------------------
>   2 files changed, 3 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
> index 17305a6f01f1..9a2a2d0db9d2 100644
> --- a/drivers/pci/hotplug/pciehp.h
> +++ b/drivers/pci/hotplug/pciehp.h
> @@ -181,7 +181,6 @@ void pciehp_get_power_status(struct controller *ctrl, u8 *status);
>   void pciehp_set_indicators(struct controller *ctrl,
>   			   enum pciehp_indicator pwr,
>   			   enum pciehp_indicator attn);
> -void pciehp_set_attention_status(struct controller *ctrl, u8 status);
>   void pciehp_get_latch_status(struct controller *ctrl, u8 *status);
>   int pciehp_query_power_fault(struct controller *ctrl);
>   void pciehp_green_led_on(struct controller *ctrl);
> @@ -200,6 +199,9 @@ int pciehp_get_attention_status(struct hotplug_slot *hotplug_slot, u8 *status);
>   int pciehp_set_raw_indicator_status(struct hotplug_slot *h_slot, u8 status);
>   int pciehp_get_raw_indicator_status(struct hotplug_slot *h_slot, u8 *status);
>   
> +#define pciehp_set_attention_status(ctrl, status) \
> +	pciehp_set_indicators(ctrl, PWR_NONE, (status == 0 ? ATTN_OFF : status))
> +
>   static inline const char *slot_name(struct controller *ctrl)
>   {
>   	return hotplug_slot_name(&ctrl->hotplug_slot);
> diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
> index 68b880bc30db..fb4bea16063a 100644
> --- a/drivers/pci/hotplug/pciehp_hpc.c
> +++ b/drivers/pci/hotplug/pciehp_hpc.c
> @@ -418,31 +418,6 @@ int pciehp_set_raw_indicator_status(struct hotplug_slot *hotplug_slot,
>   	return 0;
>   }
>   
> -void pciehp_set_attention_status(struct controller *ctrl, u8 value)
> -{
> -	u16 slot_cmd;
> -
> -	if (!ATTN_LED(ctrl))
> -		return;
> -
> -	switch (value) {
> -	case 0:		/* turn off */
> -		slot_cmd = PCI_EXP_SLTCTL_ATTN_IND_OFF;
> -		break;
> -	case 1:		/* turn on */
> -		slot_cmd = PCI_EXP_SLTCTL_ATTN_IND_ON;
> -		break;
> -	case 2:		/* turn blink */
> -		slot_cmd = PCI_EXP_SLTCTL_ATTN_IND_BLINK;
> -		break;
> -	default:
> -		return;
> -	}
> -	pcie_write_cmd_nowait(ctrl, slot_cmd, PCI_EXP_SLTCTL_AIC);
> -	ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
> -		 pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL, slot_cmd);
> -}
> -
>   void pciehp_set_indicators(struct controller *ctrl,
>   			   enum pciehp_indicator pwr,
>   			   enum pciehp_indicator attn)

-- 
Sathyanarayanan Kuppuswamy
Linux kernel developer