From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eugeni Dodonov Subject: [PATCH 12/24] drm/i915: add LPT PCH checks Date: Thu, 26 Apr 2012 15:21:07 -0300 Message-ID: <1335464479-648-13-git-send-email-eugeni.dodonov@intel.com> References: <1335464479-648-1-git-send-email-eugeni.dodonov@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga03.intel.com (mga03.intel.com [143.182.124.21]) by gabe.freedesktop.org (Postfix) with ESMTP id F10E19EC9F for ; Thu, 26 Apr 2012 11:21:49 -0700 (PDT) In-Reply-To: <1335464479-648-1-git-send-email-eugeni.dodonov@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Eugeni Dodonov List-Id: intel-gfx@lists.freedesktop.org Avoid bogus asserts on Lynx Point. Signed-off-by: Eugeni Dodonov --- drivers/gpu/drm/i915/intel_display.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8308da0..ca0edbf 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -917,6 +917,11 @@ static void assert_pch_pll(struct drm_i915_private *dev_priv, u32 val; bool cur_state; + if (HAS_PCH_LPT(dev_priv->dev)) { + DRM_DEBUG_DRIVER("LPT detected: skipping PCH PLL test\n"); + return; + } + if (!intel_crtc->pch_pll) { WARN(1, "asserting PCH PLL enabled with no PLL\n"); return; @@ -1102,6 +1107,11 @@ static void assert_pch_refclk_enabled(struct drm_i915_private *dev_priv) u32 val; bool enabled; + if (HAS_PCH_LPT(dev_priv->dev)) { + DRM_DEBUG_DRIVER("LPT does not has PCH refclk, skipping check\n"); + return; + } + val = I915_READ(PCH_DREF_CONTROL); enabled = !!(val & (DREF_SSC_SOURCE_MASK | DREF_NONSPREAD_SOURCE_MASK | DREF_SUPERSPREAD_SOURCE_MASK)); -- 1.7.10