From 94719ba090e2c111272eb97c053c6cc47a7b8856 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Tue, 3 Sep 2019 14:10:19 +0300 Subject: PCI: pciehp: Combine adjacent indicator updates Combine adjacent updates of power and attention indicators into a single pciehp_set_indicators() call. This sends one command to the hotplug controller instead of two. Link: https://lore.kernel.org/r/20190903111021.1559-3-efremov@linux.com Signed-off-by: Denis Efremov Signed-off-by: Bjorn Helgaas Reviewed-by: Kuppuswamy Sathyanarayanan Reviewed-by: Lukas Wunner --- drivers/pci/hotplug/pciehp_ctrl.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) (limited to 'drivers/pci/hotplug/pciehp_ctrl.c') diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c index 631ced0ab28a..b10c71493ffa 100644 --- a/drivers/pci/hotplug/pciehp_ctrl.c +++ b/drivers/pci/hotplug/pciehp_ctrl.c @@ -30,7 +30,10 @@ static void set_slot_off(struct controller *ctrl) { - /* turn off slot, turn on Amber LED, turn off Green LED if supported*/ + /* + * Turn off slot, turn on attention indicator, turn off power + * indicator + */ if (POWER_CTRL(ctrl)) { pciehp_power_off_slot(ctrl); @@ -42,8 +45,8 @@ 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, PCI_EXP_SLTCTL_PWR_IND_OFF, + PCI_EXP_SLTCTL_ATTN_IND_ON); } /** @@ -90,8 +93,8 @@ static int board_added(struct controller *ctrl) } } - pciehp_green_led_on(ctrl); - pciehp_set_attention_status(ctrl, 0); + pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_ON, + PCI_EXP_SLTCTL_ATTN_IND_OFF); return 0; err_exit: @@ -171,9 +174,9 @@ void pciehp_handle_button_press(struct controller *ctrl) ctrl_info(ctrl, "Slot(%s) Powering on due to button press\n", slot_name(ctrl)); } - /* blink green LED and turn off amber */ - pciehp_green_led_blink(ctrl); - pciehp_set_attention_status(ctrl, 0); + /* blink power indicator and turn off attention */ + pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_BLINK, + PCI_EXP_SLTCTL_ATTN_IND_OFF); schedule_delayed_work(&ctrl->button_work, 5 * HZ); break; case BLINKINGOFF_STATE: @@ -187,12 +190,13 @@ 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, PCI_EXP_SLTCTL_PWR_IND_ON, + PCI_EXP_SLTCTL_ATTN_IND_OFF); } else { ctrl->state = OFF_STATE; - pciehp_green_led_off(ctrl); + pciehp_set_indicators(ctrl, PCI_EXP_SLTCTL_PWR_IND_OFF, + PCI_EXP_SLTCTL_ATTN_IND_OFF); } - pciehp_set_attention_status(ctrl, 0); ctrl_info(ctrl, "Slot(%s): Action canceled due to button press\n", slot_name(ctrl)); break; -- cgit v1.2.3