From: Alex Deucher Date: Mon, 18 Mar 2013 21:12:50 +0000 (-0400) Subject: drm/radeon: don't use get_engine_clock() on APUs X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bf05d9985111f85ed6922c134567b96eb789283b;p=linux-beck.git drm/radeon: don't use get_engine_clock() on APUs It doesn't work reliably. Just report back the currently selected engine clock. Partially fixes: https://bugs.freedesktop.org/show_bug.cgi?id=62493 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 338fd6a74e87..788c64cb4b47 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -843,7 +843,11 @@ static int radeon_debugfs_pm_info(struct seq_file *m, void *data) struct radeon_device *rdev = dev->dev_private; seq_printf(m, "default engine clock: %u0 kHz\n", rdev->pm.default_sclk); - seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev)); + /* radeon_get_engine_clock is not reliable on APUs so just print the current clock */ + if ((rdev->family >= CHIP_PALM) && (rdev->flags & RADEON_IS_IGP)) + seq_printf(m, "current engine clock: %u0 kHz\n", rdev->pm.current_sclk); + else + seq_printf(m, "current engine clock: %u0 kHz\n", radeon_get_engine_clock(rdev)); seq_printf(m, "default memory clock: %u0 kHz\n", rdev->pm.default_mclk); if (rdev->asic->pm.get_memory_clock) seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev));