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PCI: pciehp: Remove pciehp_set_attention_status()

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Remove pciehp_set_attention_status() and use pciehp_set_indicators()
instead, since the code is mostly the same.

Link: https://lore.kernel.org/r/20190903111021.1559-4-efremov@linux.com
Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
This commit is contained in:
Denis Efremov 2019-09-03 14:10:20 +03:00 committed by Bjorn Helgaas
parent 94719ba090
commit 106feb2fdc
4 changed files with 8 additions and 28 deletions
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1
drivers/pci/hotplug/pciehp.h
View file

@ -170,7 +170,6 @@ void pciehp_get_power_status(struct controller *ctrl, u8 *status);
#define INDICATOR_NOOP -1 /* Leave indicator unchanged */
void pciehp_set_indicators(struct controller *ctrl, int pwr, int 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);

9
drivers/pci/hotplug/pciehp_core.c
View file

@ -95,15 +95,20 @@ static void cleanup_slot(struct controller *ctrl)
}
/*
* set_attention_status - Turns the Amber LED for a slot on, off or blink
* set_attention_status - Turns the Attention Indicator on, off or blinking
*/
static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
{
struct controller *ctrl = to_ctrl(hotplug_slot);
struct pci_dev *pdev = ctrl->pcie->port;
if (status)
status <<= PCI_EXP_SLTCTL_ATTN_IND_SHIFT;
else
status = PCI_EXP_SLTCTL_ATTN_IND_OFF;
pci_config_pm_runtime_get(pdev);
pciehp_set_attention_status(ctrl, status);
pciehp_set_indicators(ctrl, INDICATOR_NOOP, status);
pci_config_pm_runtime_put(pdev);
return 0;
}

25
drivers/pci/hotplug/pciehp_hpc.c
View file

@ -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);
}
/**
* pciehp_set_indicators() - set attention indicator, power indicator, or both
* @ctrl: PCIe hotplug controller

1
include/uapi/linux/pci_regs.h
View file

@ -591,6 +591,7 @@
#define PCI_EXP_SLTCTL_CCIE 0x0010 /* Command Completed Interrupt Enable */
#define PCI_EXP_SLTCTL_HPIE 0x0020 /* Hot-Plug Interrupt Enable */
#define PCI_EXP_SLTCTL_AIC 0x00c0 /* Attention Indicator Control */
#define PCI_EXP_SLTCTL_ATTN_IND_SHIFT 6 /* Attention Indicator shift */
#define PCI_EXP_SLTCTL_ATTN_IND_ON 0x0040 /* Attention Indicator on */
#define PCI_EXP_SLTCTL_ATTN_IND_BLINK 0x0080 /* Attention Indicator blinking */
#define PCI_EXP_SLTCTL_ATTN_IND_OFF 0x00c0 /* Attention Indicator off */