From patchwork Sun Oct 18 12:52:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 285004 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=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 BD0D4C433DF for ; Sun, 18 Oct 2020 12:54:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7E60821582 for ; Sun, 18 Oct 2020 12:54:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mXv5e28H" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726851AbgJRMyM (ORCPT ); Sun, 18 Oct 2020 08:54:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57964 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726685AbgJRMwo (ORCPT ); Sun, 18 Oct 2020 08:52:44 -0400 Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 49FFCC0613CE; Sun, 18 Oct 2020 05:52:44 -0700 (PDT) Received: by mail-wm1-x342.google.com with SMTP id f21so7686834wml.3; Sun, 18 Oct 2020 05:52:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=7C8SiBUaBEB0Pue37zDv/bScOV6s5JvgTGv3JG0sNTs=; b=mXv5e28HeG6NbIF9f4SaNnUJPRintgungcBJrY4oBDWnmUKnbaD5krgrGvibfkm7V+ Bupood2YYnrLVw9rfz8Qg3ojEoOHOfoJ1CxTppeMMDcKw4Ozjzg/Z5b91h4J/ceeTHtv dPA+Ll1ySSfXrTG+qh3kEf7cidUwFp+3Mv50JyESuBMngVlZiiPkkqvJMbfl6uraZUYa cD/NBs4lhH8fhWKjVL1azo7RnBwyt2dtnxqdjCxrIVAPt1PNKCLPRxcWF80RLpjD0M5C UA8ccDNRqTXw2p3h2K06UEPTci2BQzWFd3R282VksM/IBcYOS6YiW4sAI7qzjYQ5tLoB 6fAg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=7C8SiBUaBEB0Pue37zDv/bScOV6s5JvgTGv3JG0sNTs=; b=QjpTC5vMPVg3SVBZwXiMDR1oRnfaWiMxt6LIRnAWhnkx9OBUX+dkZtGeegt5xFB0fc Gfk4KNwT96isfZN+5xWmLxwHWOq8h5Fs02at8gPJeQ+zV0CfTBdKOStCBvX8oSh+oOzL abM6sMygwlYvkc/sHcdb84Y315nCumKV+qYHDN2OJx4sEm/0apf1Y1v5mJb1BvkM6vhO LWMHgxswH2+YeqhiF9qoH6+IJftR50EHe6KBM7QCIqtL1HtEvanHmvdsfaR4oMXHm+O/ uoPoFGD/l76Cgaq/5u3K1vzkuYiz7Vuesw2W1sqBu6Z+3uhlQt6qC4jst2A1kEJhmLYv QGwg== X-Gm-Message-State: AOAM533nRKe2v41hnoOX40MdHOYpbRkbfbGu9FJJ/qHqhmkDFERlhsri We6L3pSA6Kv50BbZY00Zyw4= X-Google-Smtp-Source: ABdhPJzUPARLGYStpJTUUH6l/avm8hRmERNyuv8N7k87ehEqj7g9dz+8ec6EASatznb+mxcdVI8MZw== X-Received: by 2002:a05:600c:20c:: with SMTP id 12mr13531980wmi.144.1603025562892; Sun, 18 Oct 2020 05:52:42 -0700 (PDT) Received: from IcarusMOD.eternityproject.eu ([2.237.20.237]) by smtp.gmail.com with ESMTPSA id u2sm11940158wme.1.2020.10.18.05.52.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Oct 2020 05:52:42 -0700 (PDT) From: kholk11@gmail.com To: todor.too@gmail.com Cc: agross@kernel.org, bjorn.andersson@linaro.org, mchehab@kernel.org, robh+dt@kernel.org, marijns95@gmail.com, konradybcio@gmail.com, martin.botka1@gmail.com, linux-arm-msm@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, AngeloGioacchino Del Regno Subject: [PATCH 2/6] media: camss: ispif: Correctly reset based on the VFE ID Date: Sun, 18 Oct 2020 14:52:33 +0200 Message-Id: <20201018125237.16717-3-kholk11@gmail.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201018125237.16717-1-kholk11@gmail.com> References: <20201018125237.16717-1-kholk11@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: AngeloGioacchino Del Regno Resetting the ISPIF VFE0 context is wrong if we are using the VFE1 for dual-camera or simply because a secondary camera is connected to it: in this case the reset will always happen on the VFE0 ctx of the ISPIF, which is .. useless. Fix this usecase by adding the ISPIF_RST_CMD_1 address and choose where to do the (or what to) reset based on the VFE line id. Signed-off-by: AngeloGioacchino Del Regno --- .../media/platform/qcom/camss/camss-ispif.c | 87 ++++++++++++------- .../media/platform/qcom/camss/camss-ispif.h | 2 +- 2 files changed, 57 insertions(+), 32 deletions(-) diff --git a/drivers/media/platform/qcom/camss/camss-ispif.c b/drivers/media/platform/qcom/camss/camss-ispif.c index db94cfd6c508..252db6b33dab 100644 --- a/drivers/media/platform/qcom/camss/camss-ispif.c +++ b/drivers/media/platform/qcom/camss/camss-ispif.c @@ -26,6 +26,7 @@ #define MSM_ISPIF_NAME "msm_ispif" #define ISPIF_RST_CMD_0 0x008 +#define ISPIF_RST_CMD_1 0x00c #define ISPIF_RST_CMD_0_STROBED_RST_EN (1 << 0) #define ISPIF_RST_CMD_0_MISC_LOGIC_RST (1 << 1) #define ISPIF_RST_CMD_0_SW_REG_RST (1 << 2) @@ -179,7 +180,10 @@ static irqreturn_t ispif_isr_8x96(int irq, void *dev) writel(0x1, ispif->base + ISPIF_IRQ_GLOBAL_CLEAR_CMD); if ((value0 >> 27) & 0x1) - complete(&ispif->reset_complete); + complete(&ispif->reset_complete[0]); + + if ((value3 >> 27) & 0x1) + complete(&ispif->reset_complete[1]); if (unlikely(value0 & ISPIF_VFE_m_IRQ_STATUS_0_PIX0_OVERFLOW)) dev_err_ratelimited(to_device(ispif), "VFE0 pix0 overflow\n"); @@ -237,7 +241,7 @@ static irqreturn_t ispif_isr_8x16(int irq, void *dev) writel(0x1, ispif->base + ISPIF_IRQ_GLOBAL_CLEAR_CMD); if ((value0 >> 27) & 0x1) - complete(&ispif->reset_complete); + complete(&ispif->reset_complete[0]); if (unlikely(value0 & ISPIF_VFE_m_IRQ_STATUS_0_PIX0_OVERFLOW)) dev_err_ratelimited(to_device(ispif), "VFE0 pix0 overflow\n"); @@ -257,33 +261,17 @@ static irqreturn_t ispif_isr_8x16(int irq, void *dev) return IRQ_HANDLED; } -/* - * ispif_reset - Trigger reset on ISPIF module and wait to complete - * @ispif: ISPIF device - * - * Return 0 on success or a negative error code otherwise - */ -static int ispif_reset(struct ispif_device *ispif) +static int ispif_vfe_reset(struct ispif_device *ispif, u8 vfe_id) { - unsigned long time; u32 val; - int ret; - - ret = camss_pm_domain_on(to_camss(ispif), PM_DOMAIN_VFE0); - if (ret < 0) - return ret; - ret = camss_pm_domain_on(to_camss(ispif), PM_DOMAIN_VFE1); - if (ret < 0) - return ret; - - ret = camss_enable_clocks(ispif->nclocks_for_reset, - ispif->clock_for_reset, - to_device(ispif)); - if (ret < 0) - return ret; + if (vfe_id > (to_camss(ispif)->vfe_num - 1)) { + dev_err(to_device(ispif), + "Error: asked reset for invalid VFE%d\n", vfe_id); + return -ENOENT; + } - reinit_completion(&ispif->reset_complete); + reinit_completion(&ispif->reset_complete[vfe_id]); val = ISPIF_RST_CMD_0_STROBED_RST_EN | ISPIF_RST_CMD_0_MISC_LOGIC_RST | @@ -303,15 +291,51 @@ static int ispif_reset(struct ispif_device *ispif) ISPIF_RST_CMD_0_RDI_OUTPUT_1_MISR_RST | ISPIF_RST_CMD_0_RDI_OUTPUT_2_MISR_RST; - writel_relaxed(val, ispif->base + ISPIF_RST_CMD_0); + if (vfe_id == 1) + writel_relaxed(val, ispif->base + ISPIF_RST_CMD_1); + else + writel_relaxed(val, ispif->base + ISPIF_RST_CMD_0); - time = wait_for_completion_timeout(&ispif->reset_complete, + time = wait_for_completion_timeout(&ispif->reset_complete[vfe_id], msecs_to_jiffies(ISPIF_RESET_TIMEOUT_MS)); if (!time) { - dev_err(to_device(ispif), "ISPIF reset timeout\n"); - ret = -EIO; + dev_err(to_device(ispif), + "ISPIF for VFE%d reset timeout\n", vfe_id); + return -EIO; } + return 0; +} + +/* + * ispif_reset - Trigger reset on ISPIF module and wait to complete + * @ispif: ISPIF device + * + * Return 0 on success or a negative error code otherwise + */ +static int ispif_reset(struct ispif_device *ispif, u8 vfe_id) +{ + unsigned long time; + int ret; + + ret = camss_pm_domain_on(to_camss(ispif), PM_DOMAIN_VFE0); + if (ret < 0) + return ret; + + ret = camss_pm_domain_on(to_camss(ispif), PM_DOMAIN_VFE1); + if (ret < 0) + return ret; + + ret = camss_enable_clocks(ispif->nclocks_for_reset, + ispif->clock_for_reset, + to_device(ispif)); + if (ret < 0) + return ret; + + ret = ispif_vfe_reset(ispif, vfe_id); + if (ret) + dev_dbg(to_device(ispif), "ISPIF Reset failed\n"); + camss_disable_clocks(ispif->nclocks_for_reset, ispif->clock_for_reset); camss_pm_domain_off(to_camss(ispif), PM_DOMAIN_VFE0); @@ -355,7 +379,7 @@ static int ispif_set_power(struct v4l2_subdev *sd, int on) goto exit; } - ret = ispif_reset(ispif); + ret = ispif_reset(ispif, line->vfe_id); if (ret < 0) { pm_runtime_put_sync(dev); camss_disable_clocks(ispif->nclocks, ispif->clock); @@ -1192,7 +1216,8 @@ int msm_ispif_subdev_init(struct ispif_device *ispif, mutex_init(&ispif->config_lock); - init_completion(&ispif->reset_complete); + for (i = 0; i < MSM_ISPIF_VFE_NUM; i++) + init_completion(&ispif->reset_complete[i]); return 0; } diff --git a/drivers/media/platform/qcom/camss/camss-ispif.h b/drivers/media/platform/qcom/camss/camss-ispif.h index 1a5ba2425a42..4132174f7ea1 100644 --- a/drivers/media/platform/qcom/camss/camss-ispif.h +++ b/drivers/media/platform/qcom/camss/camss-ispif.h @@ -56,7 +56,7 @@ struct ispif_device { int nclocks; struct camss_clock *clock_for_reset; int nclocks_for_reset; - struct completion reset_complete; + struct completion reset_complete[MSM_ISPIF_VFE_NUM]; int power_count; struct mutex power_lock; struct ispif_intf_cmd_reg intf_cmd[MSM_ISPIF_VFE_NUM];