From patchwork Thu Jan 9 11:08:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kulkarni, Vandita" X-Patchwork-Id: 11325503 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A4E1E13A0 for ; Thu, 9 Jan 2020 11:42:09 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8CD692075D for ; Thu, 9 Jan 2020 11:42:09 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8CD692075D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 123446E901; Thu, 9 Jan 2020 11:42:09 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id AF09A6E901 for ; Thu, 9 Jan 2020 11:42:07 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 09 Jan 2020 03:42:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,413,1571727600"; d="scan'208";a="223264672" Received: from vandita-desktop.iind.intel.com ([10.223.74.218]) by orsmga006.jf.intel.com with ESMTP; 09 Jan 2020 03:42:06 -0800 From: Vandita Kulkarni To: intel-gfx@lists.freedesktop.org Date: Thu, 9 Jan 2020 16:38:35 +0530 Message-Id: <20200109110835.29764-10-vandita.kulkarni@intel.com> X-Mailer: git-send-email 2.21.0.5.gaeb582a In-Reply-To: <20200109110835.29764-1-vandita.kulkarni@intel.com> References: <20200109110835.29764-1-vandita.kulkarni@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [V6 9/9] drm/i915/dsi: Clear the DSI IIR X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Clear the DSI IIR as part of interrupt configuration. Signed-off-by: Vandita Kulkarni --- drivers/gpu/drm/i915/i915_irq.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 028d4d66da8a..fabba515c274 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2668,6 +2668,11 @@ static bool gen11_dsi_configure_te(struct drm_i915_private *dev_priv, tmp |= DSI_TE_EVENT; I915_WRITE(DSI_INTR_MASK_REG(port), tmp); + + /* FIXME: right place to clear this */ + tmp = I915_READ(DSI_INTR_IDENT_REG(port)); + I915_WRITE(DSI_INTR_IDENT_REG(port), tmp); + return true; }