Attachment 87033 Details for Bug 70053 – force battery state on DC

[patch] force battery state on DC

0001-drm-radeon-automatically-switch-between-states-on-ac.patch (text/plain), 1.54 KB, created by Alex Deucher on 2013-10-03 14:11:17 UTC

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Creator: Alex Deucher

Created: 2013-10-03 14:11:17 UTC

Size: 1.54 KB

patch

obsolete

>From 54e87d28be07e4edf37b9285fc918bc4cdaee0b9 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Thu, 3 Oct 2013 10:08:20 -0400
>Subject: [PATCH] drm/radeon: automatically switch between states on ac power
> events
>
>Some laptops require automatic switching to battery states
>when on DC power to avoid going over their power envelop.
>
>Fixes:
>https://bugs.freedesktop.org/show_bug.cgi?id=70053
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>---
> drivers/gpu/drm/radeon/radeon_pm.c | 8 ++++++--
> 1 file changed, 6 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
>index 4f6b7fc..be79b78 100644
>--- a/drivers/gpu/drm/radeon/radeon_pm.c
>+++ b/drivers/gpu/drm/radeon/radeon_pm.c
>@@ -69,13 +69,17 @@ void radeon_pm_acpi_event_handler(struct radeon_device *rdev)
> {
> 	if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
> 		mutex_lock(&rdev->pm.mutex);
>-		if (power_supply_is_system_supplied() > 0)
>+		if (power_supply_is_system_supplied() > 0) {
> 			rdev->pm.dpm.ac_power = true;
>-		else
>+			rdev->pm.dpm.user_state = POWER_STATE_TYPE_BALANCED;
>+		} else {
> 			rdev->pm.dpm.ac_power = false;
>+			rdev->pm.dpm.user_state = POWER_STATE_TYPE_BATTERY;
>+		}
> 		if (rdev->asic->dpm.enable_bapm)
> 			radeon_dpm_enable_bapm(rdev, rdev->pm.dpm.ac_power);
> 		mutex_unlock(&rdev->pm.mutex);
>+		radeon_pm_compute_clocks(rdev);
>         } else if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
> 		if (rdev->pm.profile == PM_PROFILE_AUTO) {
> 			mutex_lock(&rdev->pm.mutex);
>-- 
>1.8.3.1
>

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