From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 7604DC10F15 for ; Mon, 22 Apr 2024 18:48:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To: Subject:MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=XYacQVtb0zA5iD+nGBoExLdPG7fBb7Q5ry70I61P6Zk=; b=nU7kLaKu7qHaNq yw3bYI1ZhoMxn8cz1j0LViERu6kBPe8HHSlgouuiaGc9lmBzVV/VgGTGV9jx3ybYedlF+bfWkKD6U mRvk4kwdofF2GNgVrb2PMJImum1qoZDDGgvl3xSjyqnLxwOOeKXIYm1rNQsLEjDXS8Gks//vnVJwh uLwm4B7NSGwwryDkiygn4g6WI4w9YdXrR6dGQMhmN0xw/YJnAeCridewV0Z0N/3GpfKXqWl5p7TAx 2L9X6m5Oi2aHnkNh0Rb3Yvj3Aisrrog+DBedk5PvSQjjuUKiOTPV/LB9wlx4ryPsVGkdMUuINT0eP 405cOewkeV1spl2Kadjw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1ryyie-0000000Eg53-2YRH; Mon, 22 Apr 2024 18:48:48 +0000 Received: from out-177.mta0.migadu.com ([91.218.175.177]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1ryyiA-0000000EfuI-33rn for linux-arm-kernel@lists.infradead.org; Mon, 22 Apr 2024 18:48:20 +0000 Message-ID: <4cfbbbd5-fd76-4426-a6be-ad6a82dae8bf@linux.dev> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1713811695; 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=XEt+IUNNZ0s58xLemUV9lCabZNCE/TtBPyT3EKRdZWM=; b=PxXZV2b564EDYUZ1cMNfuPA3OWIDzAXHwpCVn9d5yL26gmg5e/sP0UhkD+uek5jr3Zs5u4 6xKjAZ8B9lK6jeZJ6Uz89ckvuGiQ+NYt0bpU8AiZGzU20cQ5D7SQ6xsJr5AtBludBQf8U9 +68nXwN+aEtknkmVAbIUP9zzmmEbyLM= Date: Mon, 22 Apr 2024 14:48:11 -0400 MIME-Version: 1.0 Subject: Re: [PATCH v3 00/13] drm: zynqmp_dp: IRQ cleanups and debugfs support To: Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , dri-devel@lists.freedesktop.org, Tomi Valkeinen Cc: David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Michal Simek References: <20240422184553.3573009-1-sean.anderson@linux.dev> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Sean Anderson In-Reply-To: <20240422184553.3573009-1-sean.anderson@linux.dev> X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240422_114818_997250_7096727D X-CRM114-Status: GOOD ( 17.40 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 4/22/24 14:45, Sean Anderson wrote: > This series cleans up the zyqnmp_dp IRQ and locking situation. Once > that's done, it adds debugfs support. The intent is to enable compliance > testing or to help debug signal-integrity issues. > > Last time I discussed converting the HPD work(s) to a threaded IRQ. I > did not end up doing that for this series since the steps would be > > - Add locking > - Move link retraining to a work function > - Harden the IRQ > - Merge the works into a threaded IRQ (omitted) > > Which with the exception of the final step is the same as leaving those > works as-is. Conversion to a threaded IRQ can be done as a follow-up. > > Changes in v3: > - Store base pointers in zynqmp_disp directly > - Don't delay work > - Convert to a hard IRQ > - Use AUX IRQs instead of polling > - Take dp->lock in zynqmp_dp_hpd_work_func > > Changes in v2: > - Fix kerneldoc > - Rearrange zynqmp_dp for better padding > - Split off the HPD IRQ work into another commit > - Expand the commit message > - Document hpd_irq_work > - Document debugfs files > - Add ignore_aux_errors and ignore_hpd debugfs files to replace earlier > implicit functionality > - Attempt to fix unreproducable, spurious build warning > - Drop "Optionally ignore DPCD errors" in favor of a debugfs file > directly affecting zynqmp_dp_aux_transfer. > > Sean Anderson (13): > drm: xlnx: Store base pointers in zynqmp_disp directly > drm: xlnx: Fix kerneldoc > drm: zynqmp_dp: Downgrade log level for aux retries message > drm: zynqmp_dp: Adjust training values per-lane > drm: zynqmp_dp: Rearrange zynqmp_dp for better padding > drm: zynqmp_dp: Don't delay work > drm: zynqmp_dp: Add locking > drm: zynqmp_dp: Don't retrain the link in our IRQ > drm: zynqmp_dp: Convert to a hard IRQ > drm: zynqmp_dp: Use AUX IRQs instead of polling > drm: zynqmp_dp: Split off several helper functions > drm: zynqmp_dp: Take dp->lock in zynqmp_dp_hpd_work_func > drm: zynqmp_dp: Add debugfs interface for compliance testing > > Documentation/gpu/drivers.rst | 1 + > Documentation/gpu/zynqmp.rst | 149 +++++ > MAINTAINERS | 1 + > drivers/gpu/drm/xlnx/zynqmp_disp.c | 44 +- > drivers/gpu/drm/xlnx/zynqmp_dp.c | 909 +++++++++++++++++++++++++--- > drivers/gpu/drm/xlnx/zynqmp_dpsub.h | 1 + > drivers/gpu/drm/xlnx/zynqmp_kms.h | 4 +- > 7 files changed, 1000 insertions(+), 109 deletions(-) > create mode 100644 Documentation/gpu/zynqmp.rst > +CC Tomi, who I forgot to add initially... _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel