From patchwork Tue Apr 20 12:04:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 424804 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5044BC43461 for ; Tue, 20 Apr 2021 12:05:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 19368613BF for ; Tue, 20 Apr 2021 12:05:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232136AbhDTMF4 (ORCPT ); Tue, 20 Apr 2021 08:05:56 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:57972 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232164AbhDTMFy (ORCPT ); Tue, 20 Apr 2021 08:05:54 -0400 Received: from deskari.lan (91-157-208-71.elisa-laajakaista.fi [91.157.208.71]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 8ED2D1235; Tue, 20 Apr 2021 14:05:20 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1618920321; bh=O2PDnD5Nq3B16OPnLY/br3cUjv6h4spforr2yL++pr0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IfgoNDGpipJ9unSqs4QHe7ClWppj/0rALXONwGr+eZBTHybqhU/DQhB6+t+G8bb/W GFgMaxOVOSa1Bo6KOjzhaiTiBht5/DMapCPjy1oFbVXFcXAw4Yr2UOOE71VbkMm9V6 /k2eKwQ8euFEYEdDGlnj2bmdKusQG+Tu9OrriDyU= From: Tomi Valkeinen To: Benoit Parrot , Laurent Pinchart , Pratyush Yadav , Lokesh Vutla , linux-media@vger.kernel.org Cc: Tomi Valkeinen Subject: [PATCH v2 14/35] media: ti-vpe: cal: catch VC errors Date: Tue, 20 Apr 2021 15:04:12 +0300 Message-Id: <20210420120433.902394-15-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210420120433.902394-1-tomi.valkeinen@ideasonboard.com> References: <20210420120433.902394-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org CAL driver currently ignores VC related errors. To help catch error conditions, enable all the VC error interrupts and handle them in the interrupt handler by printing an error. Signed-off-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart --- drivers/media/platform/ti-vpe/cal-camerarx.c | 25 ++++++++++++++++---- drivers/media/platform/ti-vpe/cal.c | 10 ++++++++ 2 files changed, 31 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal-camerarx.c b/drivers/media/platform/ti-vpe/cal-camerarx.c index 9591a0c8a215..043e462c1d36 100644 --- a/drivers/media/platform/ti-vpe/cal-camerarx.c +++ b/drivers/media/platform/ti-vpe/cal-camerarx.c @@ -226,24 +226,41 @@ static void cal_camerarx_enable_irqs(struct cal_camerarx *phy) CAL_CSI2_COMPLEXIO_IRQ_FIFO_OVR_MASK | CAL_CSI2_COMPLEXIO_IRQ_SHORT_PACKET_MASK | CAL_CSI2_COMPLEXIO_IRQ_ECC_NO_CORRECTION_MASK; - - /* Enable CIO error IRQs. */ + const u32 vc_err_mask = + CAL_CSI2_VC_IRQ_CS_IRQ_MASK(0) | + CAL_CSI2_VC_IRQ_CS_IRQ_MASK(1) | + CAL_CSI2_VC_IRQ_CS_IRQ_MASK(2) | + CAL_CSI2_VC_IRQ_CS_IRQ_MASK(3) | + CAL_CSI2_VC_IRQ_ECC_CORRECTION_IRQ_MASK(0) | + CAL_CSI2_VC_IRQ_ECC_CORRECTION_IRQ_MASK(1) | + CAL_CSI2_VC_IRQ_ECC_CORRECTION_IRQ_MASK(2) | + CAL_CSI2_VC_IRQ_ECC_CORRECTION_IRQ_MASK(3); + + /* Enable CIO & VC error IRQs. */ cal_write(phy->cal, CAL_HL_IRQENABLE_SET(0), - CAL_HL_IRQ_CIO_MASK(phy->instance)); + CAL_HL_IRQ_CIO_MASK(phy->instance) | + CAL_HL_IRQ_VC_MASK(phy->instance)); cal_write(phy->cal, CAL_CSI2_COMPLEXIO_IRQENABLE(phy->instance), cio_err_mask); + cal_write(phy->cal, CAL_CSI2_VC_IRQENABLE(phy->instance), + vc_err_mask); } static void cal_camerarx_disable_irqs(struct cal_camerarx *phy) { /* Disable CIO error irqs */ cal_write(phy->cal, CAL_HL_IRQENABLE_CLR(0), - CAL_HL_IRQ_CIO_MASK(phy->instance)); + CAL_HL_IRQ_CIO_MASK(phy->instance) | + CAL_HL_IRQ_VC_MASK(phy->instance)); cal_write(phy->cal, CAL_CSI2_COMPLEXIO_IRQENABLE(phy->instance), 0); + cal_write(phy->cal, CAL_CSI2_VC_IRQENABLE(phy->instance), 0); } static void cal_camerarx_ppi_enable(struct cal_camerarx *phy) { + cal_write_field(phy->cal, CAL_CSI2_PPI_CTRL(phy->instance), + 1, CAL_CSI2_PPI_CTRL_ECC_EN_MASK); + cal_write_field(phy->cal, CAL_CSI2_PPI_CTRL(phy->instance), 1, CAL_CSI2_PPI_CTRL_IF_EN_MASK); } diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 01363294b882..0568677674b4 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -577,6 +577,16 @@ static irqreturn_t cal_irq(int irq_cal, void *data) cal_write(cal, CAL_CSI2_COMPLEXIO_IRQSTATUS(i), cio_stat); } + + if (status & CAL_HL_IRQ_VC_MASK(i)) { + u32 vc_stat = cal_read(cal, CAL_CSI2_VC_IRQSTATUS(i)); + + dev_err_ratelimited(cal->dev, + "CIO%u VC error: %#08x\n", + i, vc_stat); + + cal_write(cal, CAL_CSI2_VC_IRQSTATUS(i), vc_stat); + } } }