From: Denis Efremov <efremov@linux.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
Denis Efremov <efremov@linux.com>
Subject: [PATCH 2/4] PCI: pciehp: Switch LED indicators with a single write
Date: Sun, 11 Aug 2019 16:29:43 +0300 [thread overview]
Message-ID: <20190811132945.12426-3-efremov@linux.com> (raw)
In-Reply-To: <20190811132945.12426-1-efremov@linux.com>
This patch replaces all consecutive switches of power and attention
indicators with pciehp_set_indicators() call. Thus, performing only
single write to a register.
Signed-off-by: Denis Efremov <efremov@linux.com>
---
drivers/pci/hotplug/pciehp_ctrl.c | 14 +++++---------
drivers/pci/hotplug/pciehp_hpc.c | 3 +--
2 files changed, 6 insertions(+), 11 deletions(-)
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 631ced0ab28a..258a4060466d 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -42,8 +42,7 @@ static void set_slot_off(struct controller *ctrl)
msleep(1000);
}
- pciehp_green_led_off(ctrl);
- pciehp_set_attention_status(ctrl, 1);
+ pciehp_set_indicators(ctrl, PWR_OFF, ATTN_ON);
}
/**
@@ -90,8 +89,7 @@ static int board_added(struct controller *ctrl)
}
}
- pciehp_green_led_on(ctrl);
- pciehp_set_attention_status(ctrl, 0);
+ pciehp_set_indicators(ctrl, PWR_ON, ATTN_OFF);
return 0;
err_exit:
@@ -172,8 +170,7 @@ void pciehp_handle_button_press(struct controller *ctrl)
slot_name(ctrl));
}
/* blink green LED and turn off amber */
- pciehp_green_led_blink(ctrl);
- pciehp_set_attention_status(ctrl, 0);
+ pciehp_set_indicators(ctrl, PWR_BLINK, ATTN_OFF);
schedule_delayed_work(&ctrl->button_work, 5 * HZ);
break;
case BLINKINGOFF_STATE:
@@ -187,12 +184,11 @@ void pciehp_handle_button_press(struct controller *ctrl)
cancel_delayed_work(&ctrl->button_work);
if (ctrl->state == BLINKINGOFF_STATE) {
ctrl->state = ON_STATE;
- pciehp_green_led_on(ctrl);
+ pciehp_set_indicators(ctrl, PWR_ON, ATTN_OFF);
} else {
ctrl->state = OFF_STATE;
- pciehp_green_led_off(ctrl);
+ pciehp_set_indicators(ctrl, PWR_OFF, ATTN_OFF);
}
- pciehp_set_attention_status(ctrl, 0);
ctrl_info(ctrl, "Slot(%s): Action canceled due to button press\n",
slot_name(ctrl));
break;
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 027e3864f632..e90cb2152e8f 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -687,8 +687,7 @@ static irqreturn_t pciehp_ist(int irq, void *dev_id)
if ((events & PCI_EXP_SLTSTA_PFD) && !ctrl->power_fault_detected) {
ctrl->power_fault_detected = 1;
ctrl_err(ctrl, "Slot(%s): Power fault\n", slot_name(ctrl));
- pciehp_set_attention_status(ctrl, 1);
- pciehp_green_led_off(ctrl);
+ pciehp_set_indicators(ctrl, PWR_OFF, ATTN_ON);
}
/*
--
2.21.0
next prev parent reply other threads:[~2019-08-11 13:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-11 13:29 [PATCH 0/4] Simplify PCIe hotplug indicator control Denis Efremov
2019-08-11 13:29 ` [PATCH 1/4] PCI: pciehp: Add pciehp_set_indicators() to jointly set LED indicators Denis Efremov
2019-08-11 16:07 ` Lukas Wunner
2019-08-11 16:32 ` Lukas Wunner
2019-08-11 18:26 ` Denis Efremov
2019-08-11 13:29 ` Denis Efremov [this message]
2019-08-11 16:11 ` [PATCH 2/4] PCI: pciehp: Switch LED indicators with a single write Lukas Wunner
2019-08-11 13:29 ` [PATCH 3/4] PCI: pciehp: Replace pciehp_set_attention_status() Denis Efremov
2019-08-11 16:28 ` Lukas Wunner
2019-08-11 13:29 ` [PATCH 4/4] PCI: pciehp: Replace pciehp_green_led_{on,off,blink}() Denis Efremov
2019-08-11 16:29 ` Lukas Wunner
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