From: Imre Deak <imre.deak@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH v2 3/4] drm/i915/gen9: Disable DC states if power well support is disabled
Date: Mon, 29 Feb 2016 22:49:04 +0200 [thread overview]
Message-ID: <1456778945-5411-3-git-send-email-imre.deak@intel.com> (raw)
In-Reply-To: <1456778945-5411-1-git-send-email-imre.deak@intel.com>
If power well support is disabled via the i915.disable_power_well module
option we should never enable DC states. Currently we would enable DC
states even in this case during system suspend, where we need to disable
all power wells regardless of the disable_power_well option.
CC: Patrik Jakobsson <patrik.jakobsson@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
drivers/gpu/drm/i915/intel_runtime_pm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 30df9de..f0ca5134 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -2034,6 +2034,9 @@ static uint32_t get_allowed_dc_mask(const struct drm_i915_private *dev_priv,
mask = 0;
}
+ if (!i915.disable_power_well)
+ max_dc = 0;
+
if (enable_dc >= 0 && enable_dc <= max_dc) {
requested_dc = enable_dc;
} else if (enable_dc == -1) {
--
2.5.0
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next prev parent reply other threads:[~2016-02-29 20:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-29 20:49 [PATCH v2 1/4] drm/i915/skl: Fix power domain suspend sequence Imre Deak
2016-02-29 20:49 ` [PATCH v2 2/4] drm/i915/gen9: Sanitize handling of allowed DC states Imre Deak
2016-03-01 12:58 ` Patrik Jakobsson
2016-02-29 20:49 ` Imre Deak [this message]
2016-03-01 13:01 ` [PATCH v2 3/4] drm/i915/gen9: Disable DC states if power well support is disabled Patrik Jakobsson
2016-02-29 20:49 ` [PATCH v2 4/4] drm/i915/gen9: Remove state asserts when disabling DC states Imre Deak
2016-03-01 12:14 ` ✗ Fi.CI.BAT: warning for series starting with [v2,1/4] drm/i915/skl: Fix power domain suspend sequence Patchwork
2016-03-01 17:18 ` Imre Deak
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