From patchwork Fri Feb 25 21:49:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 12761005 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 2BC41C4332F for ; Fri, 25 Feb 2022 21:50:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C68BA10E980; Fri, 25 Feb 2022 21:50:36 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 907BC10E957 for ; Fri, 25 Feb 2022 21:50:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1645825833; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Dy2T/qK/l4Qm/1tXB2oDxtdVoj2vfg4TjNqn9kq5m9Q=; b=FbIawBvLGcFbqqqd+GJ3YglDAvsHH+rY4bFYxXz+fCxd1zakAoW0FDV5bAIXmxw0uZt4eA KniqdBEdA36FVUgCvzh4KdbLacMtmf7gxMiQS0MQmtLWgPPfdhUBC8ltjV678grj5ZfWT/ 7TUEfHShH/uGH/viOWyj1fQCIocRZN4= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-569-WC_f2qU4PqGnCa8xgzooUA-1; Fri, 25 Feb 2022 16:50:30 -0500 X-MC-Unique: WC_f2qU4PqGnCa8xgzooUA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0A3A7180FD71; Fri, 25 Feb 2022 21:50:29 +0000 (UTC) Received: from x1.localdomain (unknown [10.39.192.23]) by smtp.corp.redhat.com (Postfix) with ESMTP id CB7B487BB5; Fri, 25 Feb 2022 21:49:56 +0000 (UTC) From: Hans de Goede To: Jani Nikula , Joonas Lahtinen , =?utf-8?b?VmlsbGUgU3ly?= =?utf-8?b?asOkbMOk?= Subject: [PATCH 3/5] drm/i915/dsi: Add some debug logging to mipi_exec_i2c Date: Fri, 25 Feb 2022 22:49:32 +0100 Message-Id: <20220225214934.383168-3-hdegoede@redhat.com> In-Reply-To: <20220225214934.383168-1-hdegoede@redhat.com> References: <20220225214934.383168-1-hdegoede@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=hdegoede@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx , Javier Martinez Canillas , dri-devel@lists.freedesktop.org, Vivek Kasireddy , Hans de Goede Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add some debug logging to mipi_exec_i2c, to make debugging various issues seen with it easier. Signed-off-by: Hans de Goede Reviewed-by: Javier Martinez Canillas --- drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c index 0da91849efde..215dbfc0af0f 100644 --- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c +++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c @@ -464,6 +464,10 @@ static const u8 *mipi_exec_i2c(struct intel_dsi *intel_dsi, const u8 *data) u8 payload_size = *(data + 6); u8 *payload_data; + drm_dbg_kms(&i915->drm, "%s bus %d client-addr 0x%02x reg 0x%02x data %*ph\n", + __func__, vbt_i2c_bus_num, slave_addr, reg_offset, + payload_size, data + 7); + if (intel_dsi->i2c_bus_num < 0) { intel_dsi->i2c_bus_num = vbt_i2c_bus_num; i2c_acpi_find_adapter(intel_dsi, slave_addr);