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drm/radeon: fix runpm handling on APUs (v4)

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Don't try and runtime suspend the APU in PX systems.  We
only want to power down the dGPU.

v2: fix harder
v3: fix stupid typo
v4: consolidate runpm enablement to a single flag

bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=75127
https://bugzilla.kernel.org/show_bug.cgi?id=72701

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Alex Deucher
2014-04-10 22:29:01 -04:00
committed by Christian König
parent 57700ad1f2
commit 90c4cde9d5
6 changed files with 27 additions and 34 deletions
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19
drivers/gpu/drm/radeon/radeon_device.c
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@@ -102,11 +102,14 @@ static const char radeon_family_name[][16] = {
"LAST",
};
#if defined(CONFIG_VGA_SWITCHEROO)
bool radeon_is_px(void);
#else
static inline bool radeon_is_px(void) { return false; }
#endif
bool radeon_is_px(struct drm_device *dev)
{
struct radeon_device *rdev = dev->dev_private;
if (rdev->flags & RADEON_IS_PX)
return true;
return false;
}
/**
* radeon_program_register_sequence - program an array of registers.
@@ -1082,7 +1085,7 @@ static void radeon_switcheroo_set_state(struct pci_dev *pdev, enum vga_switchero
{
struct drm_device *dev = pci_get_drvdata(pdev);
if (radeon_is_px() && state == VGA_SWITCHEROO_OFF)
if (radeon_is_px(dev) && state == VGA_SWITCHEROO_OFF)
return;
if (state == VGA_SWITCHEROO_ON) {
@@ -1301,9 +1304,7 @@ int radeon_device_init(struct radeon_device *rdev,
* ignore it */
vga_client_register(rdev->pdev, rdev, NULL, radeon_vga_set_decode);
if (radeon_runtime_pm == 1)
runtime = true;
if ((radeon_runtime_pm == -1) && radeon_is_px())
if (rdev->flags & RADEON_IS_PX)
runtime = true;
vga_switcheroo_register_client(rdev->pdev, &radeon_switcheroo_ops, runtime);
if (runtime)