From mboxrd@z Thu Jan 1 00:00:00 1970 From: Aaron Lu Subject: [PATCH v6 7/7] libata: acpi: respect may_power_off flag Date: Tue, 4 Sep 2012 22:24:40 +0800 Message-ID: <1346768680-7287-8-git-send-email-aaron.lwe@gmail.com> References: <1346768680-7287-1-git-send-email-aaron.lwe@gmail.com> Return-path: Received: from mail-pb0-f46.google.com ([209.85.160.46]:44458 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932277Ab2IDO0D (ORCPT ); Tue, 4 Sep 2012 10:26:03 -0400 In-Reply-To: <1346768680-7287-1-git-send-email-aaron.lwe@gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Alan Stern , James Bottomley , Jeff Garzik Cc: linux-scsi@vger.kernel.org, linux-ide@vger.kernel.org, linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org, Aaron Lu , Aaron Lu From: Aaron Lu If user does not want the device being powered off when runtime suspended by setting may_power_off flag to 0, we will not choose D3 cold ACPI D-State for it. Signed-off-by: Aaron Lu --- drivers/ata/libata-acpi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 6c8f89c..774180d 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -869,7 +869,9 @@ void ata_acpi_set_state(struct ata_port *ap, pm_message_t state) if (state.event != PM_EVENT_ON) { acpi_state = acpi_pm_device_sleep_state( - &dev->sdev->sdev_gendev, NULL, ACPI_STATE_D3); + &dev->sdev->sdev_gendev, NULL, + dev->sdev->may_power_off ? + ACPI_STATE_D3_COLD : ACPI_STATE_D3_HOT); if (acpi_state > 0) acpi_bus_set_power(handle, acpi_state); /* TBD: need to check if it's runtime pm request */ -- 1.7.11.3