From patchwork Tue Sep 18 07:20:08 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10603795 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3E4A1112B for ; Tue, 18 Sep 2018 07:22:44 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2695A2A4C0 for ; Tue, 18 Sep 2018 07:22:44 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1B20F2A4D1; Tue, 18 Sep 2018 07:22:44 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BC0B32A4C0 for ; Tue, 18 Sep 2018 07:22:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3CC556E374; Tue, 18 Sep 2018 07:22:41 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id CA2AF6E372 for ; Tue, 18 Sep 2018 07:22:38 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Sep 2018 00:22:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,389,1531810800"; d="scan'208";a="89722032" Received: from dk-chv.jf.intel.com ([10.54.75.52]) by fmsmga004.fm.intel.com with ESMTP; 18 Sep 2018 00:22:37 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Tue, 18 Sep 2018 00:20:08 -0700 Message-Id: <20180918072009.4836-4-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20180918072009.4836-1-dhinakaran.pandiyan@intel.com> References: <20180918072009.4836-1-dhinakaran.pandiyan@intel.com> Subject: [Intel-gfx] [PATCH 4/5] drm/i915/dp: Fix duplication of DEVICE_SERVICE_IRQ handling X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dhinakaran Pandiyan MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP There are two copies of the same code called from long and short pulse handlers. Signed-off-by: Dhinakaran Pandiyan --- drivers/gpu/drm/i915/intel_dp.c | 59 +++++++++++++++-------------------------- 1 file changed, 22 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index d06bf4303814..123c2eafafab 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4038,13 +4038,6 @@ intel_dp_configure_mst(struct intel_dp *intel_dp) intel_dp->is_mst); } -static bool -intel_dp_get_sink_irq(struct intel_dp *intel_dp, u8 *sink_irq_vector) -{ - return drm_dp_dpcd_readb(&intel_dp->aux, DP_DEVICE_SERVICE_IRQ_VECTOR, - sink_irq_vector) == 1; -} - static bool intel_dp_get_sink_irq_esi(struct intel_dp *intel_dp, u8 *sink_irq_vector) { @@ -4432,6 +4425,26 @@ static bool intel_dp_hotplug(struct intel_encoder *encoder, return changed; } +static void intel_dp_check_service_irq(struct intel_dp *intel_dp) +{ + u8 val; + + if (intel_dp->dpcd[DP_DPCD_REV] < 0x11) + return; + + if (drm_dp_dpcd_readb(&intel_dp->aux, + DP_DEVICE_SERVICE_IRQ_VECTOR, &val) != 1 || !val) + return; + + drm_dp_dpcd_writeb(&intel_dp->aux, DP_DEVICE_SERVICE_IRQ_VECTOR, val); + + if (val & DP_AUTOMATED_TEST_REQUEST) + intel_dp_handle_test_request(intel_dp); + + if (val & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ)) + DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); +} + /* * According to DP spec * 5.1.2: @@ -4449,7 +4462,6 @@ static bool intel_dp_short_pulse(struct intel_dp *intel_dp) { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); - u8 sink_irq_vector = 0; u8 old_sink_count = intel_dp->sink_count; bool ret; @@ -4472,20 +4484,7 @@ intel_dp_short_pulse(struct intel_dp *intel_dp) return false; } - /* Try to read the source of the interrupt */ - if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 && - intel_dp_get_sink_irq(intel_dp, &sink_irq_vector) && - sink_irq_vector != 0) { - /* Clear interrupt source */ - drm_dp_dpcd_writeb(&intel_dp->aux, - DP_DEVICE_SERVICE_IRQ_VECTOR, - sink_irq_vector); - - if (sink_irq_vector & DP_AUTOMATED_TEST_REQUEST) - intel_dp_handle_test_request(intel_dp); - if (sink_irq_vector & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ)) - DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); - } + intel_dp_check_service_irq(intel_dp); /* Handle CEC interrupts, if any */ drm_dp_cec_irq(&intel_dp->aux); @@ -5019,7 +5018,6 @@ intel_dp_detect(struct drm_connector *connector, struct drm_i915_private *dev_priv = to_i915(connector->dev); struct intel_dp *intel_dp = intel_attached_dp(connector); int status; - u8 sink_irq_vector = 0; struct drm_crtc *crtc; DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", @@ -5109,20 +5107,7 @@ intel_dp_detect(struct drm_connector *connector, to_intel_connector(connector)->detect_edid) status = connector_status_connected; - /* Try to read the source of the interrupt */ - if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 && - intel_dp_get_sink_irq(intel_dp, &sink_irq_vector) && - sink_irq_vector != 0) { - /* Clear interrupt source */ - drm_dp_dpcd_writeb(&intel_dp->aux, - DP_DEVICE_SERVICE_IRQ_VECTOR, - sink_irq_vector); - - if (sink_irq_vector & DP_AUTOMATED_TEST_REQUEST) - intel_dp_handle_test_request(intel_dp); - if (sink_irq_vector & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ)) - DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); - } + intel_dp_check_service_irq(intel_dp); out: if (status != connector_status_connected && !intel_dp->is_mst)