From patchwork Mon Jan 24 02:31:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adam Ford X-Patchwork-Id: 12721433 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 772EEC433EF for ; Mon, 24 Jan 2022 02:32:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240858AbiAXCc3 (ORCPT ); Sun, 23 Jan 2022 21:32:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43210 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240814AbiAXCbj (ORCPT ); Sun, 23 Jan 2022 21:31:39 -0500 Received: from mail-il1-x12b.google.com (mail-il1-x12b.google.com [IPv6:2607:f8b0:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 78F27C06173B; Sun, 23 Jan 2022 18:31:39 -0800 (PST) Received: by mail-il1-x12b.google.com with SMTP id i14so12607346ila.11; Sun, 23 Jan 2022 18:31:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=iSXId6wFOcwUDpkasr+brcXkI4I0RStdwVThOM4wpW8=; b=BnwEBpGlnINz8w3TiMumEaouU8bPBS6KOItmirQXtnhLsoURAZc8PHjjPkSjqotUoc 45NrFzUtmnouqQ6b1OJxkiA1UNAD9HEabiXaKF15P2YijbYTyzx2OI29wJSib3+nNnXB yY8lKWB0mLRZbvfIB+JfS7DlMsYWsKzA9v4lN+YBey03ESkHhNDTD4VHWxKh/1OMA6mF ZB0WG05kJckrvepULbvD+zT18ipBV6SpGcQt5tfRkP1Ug9xDcHWNjwRup8exlU9XdF+l +oiWYPTbXjqAKGvfqcEWzZUosTxnyLtDgysY8V9XcMTYlooZ2ne3AH7j4ya/NhmR7IKQ +BTw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=iSXId6wFOcwUDpkasr+brcXkI4I0RStdwVThOM4wpW8=; b=RhgOf6eFs3J/59HEhP8wC/qJM+zClxrvJGWRek6wiIT16xPxYjntTv4HviJ8sTQ8Ks Zrn3ofNd+ZrtCA8bkIq504H0YUEqVwOnhhAxBoVJPblWxigio1MAf/pGD7PNpejc4mtD jEZpZ7JVs9DX2iFSWC2bh0MoE55/srC0R8SF/r4taZPG0bL80ySU+fSWhrCqCotVt/PV xjrihmZiuktfW8XTvUkz0Nj5vFDxiS19D+dyaX6Xz2tOgWHVqTl1eDusduF2+WrnUPDw 0q7a21kpTQHTvcey9w9ikfLcZ8wfy1UjDmwISqLlmb07yJpnlLocrgnBdyib3UWT1ddn 9G0Q== X-Gm-Message-State: AOAM530hfKrZiDwHd+eoUbqe8UfjcRwQ3zT93IW0xxkT1NxPWsau2zcf SmfCzyIC+s995kCcmUcPOiNbJKPeO68= X-Google-Smtp-Source: ABdhPJy0iip0YA6qcDdY9zJrChTlccm57oyzXUHPMs4hm8x42fbzYT8Wltv4BmDQw6enkSBWBNRI6g== X-Received: by 2002:a05:6e02:1648:: with SMTP id v8mr7455887ilu.286.1642991498331; Sun, 23 Jan 2022 18:31:38 -0800 (PST) Received: from aford-IdeaCentre-A730.lan ([2601:448:8400:9e8:582d:ad0e:e5a6:94b6]) by smtp.gmail.com with ESMTPSA id w4sm6625633ilq.56.2022.01.23.18.31.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 23 Jan 2022 18:31:37 -0800 (PST) From: Adam Ford To: linux-media@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, shawnguo@kernel.org, aford@beaconembedded.com, Lucas Stach , Adam Ford , Ezequiel Garcia , Philipp Zabel , Mauro Carvalho Chehab , Rob Herring , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Greg Kroah-Hartman , linux-rockchip@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev Subject: [PATCH V3 03/10] soc: imx: imx8m-blk-ctrl: add i.MX8MQ VPU blk-ctrl Date: Sun, 23 Jan 2022 20:31:17 -0600 Message-Id: <20220124023125.414794-4-aford173@gmail.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220124023125.414794-1-aford173@gmail.com> References: <20220124023125.414794-1-aford173@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Lucas Stach This adds the necessary bits to drive the VPU blk-ctrl on the i.MX8MQ, to avoid putting more of this functionality into the decoder driver. Signed-off-by: Lucas Stach Signed-off-by: Adam Ford diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c index 511e74f0db8a..122f9c884b38 100644 --- a/drivers/soc/imx/imx8m-blk-ctrl.c +++ b/drivers/soc/imx/imx8m-blk-ctrl.c @@ -15,6 +15,7 @@ #include #include +#include #define BLK_SFT_RSTN 0x0 #define BLK_CLK_EN 0x4 @@ -589,6 +590,68 @@ static const struct imx8m_blk_ctrl_data imx8mn_disp_blk_ctl_dev_data = { .num_domains = ARRAY_SIZE(imx8mn_disp_blk_ctl_domain_data), }; +static int imx8mq_vpu_power_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl, + power_nb); + + if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF) + return NOTIFY_OK; + + /* + * The ADB in the VPUMIX domain has no separate reset and clock + * enable bits, but is ungated and reset together with the VPUs. The + * reset and clock enable inputs to the ADB is a logical OR of the + * VPU bits. In order to set the G2 fuse bits, the G2 clock must + * also be enabled. + */ + regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(0) | BIT(1)); + regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(0) | BIT(1)); + + if (action == GENPD_NOTIFY_ON) { + /* + * On power up we have no software backchannel to the GPC to + * wait for the ADB handshake to happen, so we just delay for a + * bit. On power down the GPC driver waits for the handshake. + */ + udelay(5); + + /* set "fuse" bits to enable the VPUs */ + regmap_set_bits(bc->regmap, 0x8, 0xffffffff); + regmap_set_bits(bc->regmap, 0xc, 0xffffffff); + regmap_set_bits(bc->regmap, 0x10, 0xffffffff); + } + + return NOTIFY_OK; +} + +static const struct imx8m_blk_ctrl_domain_data imx8mq_vpu_blk_ctl_domain_data[] = { + [IMX8MQ_VPUBLK_PD_G1] = { + .name = "vpublk-g1", + .clk_names = (const char *[]){ "g1", }, + .num_clks = 1, + .gpc_name = "g1", + .rst_mask = BIT(1), + .clk_mask = BIT(1), + }, + [IMX8MQ_VPUBLK_PD_G2] = { + .name = "vpublk-g2", + .clk_names = (const char *[]){ "g2", }, + .num_clks = 1, + .gpc_name = "g2", + .rst_mask = BIT(0), + .clk_mask = BIT(0), + }, +}; + +static const struct imx8m_blk_ctrl_data imx8mq_vpu_blk_ctl_dev_data = { + .max_reg = 0x14, + .power_notifier_fn = imx8mq_vpu_power_notifier, + .domains = imx8mq_vpu_blk_ctl_domain_data, + .num_domains = ARRAY_SIZE(imx8mq_vpu_blk_ctl_domain_data), +}; + static const struct of_device_id imx8m_blk_ctrl_of_match[] = { { .compatible = "fsl,imx8mm-vpu-blk-ctrl", @@ -599,6 +662,9 @@ static const struct of_device_id imx8m_blk_ctrl_of_match[] = { }, { .compatible = "fsl,imx8mn-disp-blk-ctrl", .data = &imx8mn_disp_blk_ctl_dev_data + }, { + .compatible = "fsl,imx8mq-vpu-blk-ctrl", + .data = &imx8mq_vpu_blk_ctl_dev_data }, { /* Sentinel */ }