Re: [PATCH v3 4/4] PCI: pciehp: Remove pciehp_green_led_{on,off,blink}()

From: Kuppuswamy Sathyanarayanan
Date: Tue Aug 27 2019 - 18:52:08 EST


On Mon, Aug 19, 2019 at 07:06:43PM +0300, Denis Efremov wrote:
> Remove pciehp_green_led_{on,off,blink}() and use pciehp_set_indicators()
> instead, since the code is mostly the same.
>
> Signed-off-by: Denis Efremov <efremov@xxxxxxxxx>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx>
> ---
> drivers/pci/hotplug/pciehp.h | 3 ---
> drivers/pci/hotplug/pciehp_ctrl.c | 12 ++++++++---
> drivers/pci/hotplug/pciehp_hpc.c | 36 -------------------------------
> 3 files changed, 9 insertions(+), 42 deletions(-)
>
> diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
> index acda513f37d7..da429345cf70 100644
> --- a/drivers/pci/hotplug/pciehp.h
> +++ b/drivers/pci/hotplug/pciehp.h
> @@ -170,9 +170,6 @@ void pciehp_get_power_status(struct controller *ctrl, u8 *status);
> void pciehp_set_indicators(struct controller *ctrl, int pwr, int attn);
> 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);
> -void pciehp_green_led_off(struct controller *ctrl);
> -void pciehp_green_led_blink(struct controller *ctrl);
> bool pciehp_card_present(struct controller *ctrl);
> bool pciehp_card_present_or_link_active(struct controller *ctrl);
> int pciehp_check_link_status(struct controller *ctrl);
> diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
> index 232f7bfcfce9..862fe86e87cc 100644
> --- a/drivers/pci/hotplug/pciehp_ctrl.c
> +++ b/drivers/pci/hotplug/pciehp_ctrl.c
> @@ -65,7 +65,9 @@ static int board_added(struct controller *ctrl)
> return retval;
> }
>
> - pciehp_green_led_blink(ctrl);
> + pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_BLINK,
> + PCI_EXP_SLTCTL_ATTN_IND_NONE);
> +
>
> /* Check link training status */
> retval = pciehp_check_link_status(ctrl);
> @@ -124,7 +126,9 @@ static void remove_board(struct controller *ctrl, bool safe_removal)
> }
>
> /* turn off Green LED */
> - pciehp_green_led_off(ctrl);
> + pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF,
> + PCI_EXP_SLTCTL_ATTN_IND_NONE);
> +
> }
>
> static int pciehp_enable_slot(struct controller *ctrl);
> @@ -311,7 +315,9 @@ static int pciehp_enable_slot(struct controller *ctrl)
> pm_runtime_get_sync(&ctrl->pcie->port->dev);
> ret = __pciehp_enable_slot(ctrl);
> if (ret && ATTN_BUTTN(ctrl))
> - pciehp_green_led_off(ctrl); /* may be blinking */
> + /* may be blinking */
> + pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF,
> + PCI_EXP_SLTCTL_ATTN_IND_NONE);
> pm_runtime_put(&ctrl->pcie->port->dev);
>
> mutex_lock(&ctrl->state_lock);
> diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
> index 8f894fd5cd27..9dc1ecd703b9 100644
> --- a/drivers/pci/hotplug/pciehp_hpc.c
> +++ b/drivers/pci/hotplug/pciehp_hpc.c
> @@ -447,42 +447,6 @@ void pciehp_set_indicators(struct controller *ctrl, int pwr, int attn)
> }
> }
>
> -void pciehp_green_led_on(struct controller *ctrl)
> -{
> - if (!PWR_LED(ctrl))
> - return;
> -
> - pcie_write_cmd_nowait(ctrl, PCI_EXP_SLTCTL_PWR_IND_ON,
> - PCI_EXP_SLTCTL_PIC);
> - ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
> - pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL,
> - PCI_EXP_SLTCTL_PWR_IND_ON);
> -}
> -
> -void pciehp_green_led_off(struct controller *ctrl)
> -{
> - if (!PWR_LED(ctrl))
> - return;
> -
> - pcie_write_cmd_nowait(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF,
> - PCI_EXP_SLTCTL_PIC);
> - ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
> - pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL,
> - PCI_EXP_SLTCTL_PWR_IND_OFF);
> -}
> -
> -void pciehp_green_led_blink(struct controller *ctrl)
> -{
> - if (!PWR_LED(ctrl))
> - return;
> -
> - pcie_write_cmd_nowait(ctrl, PCI_EXP_SLTCTL_PWR_IND_BLINK,
> - PCI_EXP_SLTCTL_PIC);
> - ctrl_dbg(ctrl, "%s: SLOTCTRL %x write cmd %x\n", __func__,
> - pci_pcie_cap(ctrl->pcie->port) + PCI_EXP_SLTCTL,
> - PCI_EXP_SLTCTL_PWR_IND_BLINK);
> -}
> -
> int pciehp_power_on_slot(struct controller *ctrl)
> {
> struct pci_dev *pdev = ctrl_dev(ctrl);
> --
> 2.21.0
>

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Sathyanarayanan Kuppuswamy
Linux kernel developer