From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f49.google.com (mail-ej1-f49.google.com [209.85.218.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B8A5F34AB08 for ; Fri, 17 Oct 2025 11:21:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760700120; cv=none; b=OxVoe8XyvzsY5Yuk7nLRErssi3Ya45msQn4614yeKDCwogTs6j3rtSIHzyaMykdKVyQJxNQAl5TSP4bLJt9cazDfvG2vpbvOMDctZJpeiWx9Gia/d6bXxbQQBXRiIcnJ7cFkfeG4Bs2Aa0bd+zNGSGcZnyVJpxEvUZDPt8a4Pf0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760700120; c=relaxed/simple; bh=PNvlbSmiUvii0S6TXSvE0jwb+kfCR5BIL73WNeuBgrs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=haloxPJuDgyyjZ25t6Xg3vmbEc6egKP/dzfof6Iy/fnK6liZ1snh05Vkk4nG29QallLeNfmsGS1CGIpIbzIeBE3znh3nZQ2HXlKYmXbizNU1f41KYVIPftILAQsrUvD6FltMPAX3Ii1rBuh8fUCOTcMw/iXoMkK/+Tvz1LSKZm0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=nAEmCo/F; arc=none smtp.client-ip=209.85.218.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="nAEmCo/F" Received: by mail-ej1-f49.google.com with SMTP id a640c23a62f3a-b48d8deafaeso379767866b.1 for ; Fri, 17 Oct 2025 04:21:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1760700117; x=1761304917; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=GPdqo0alu4iQYdIv2XuXRfTnuhzF5tbpLw/kkpI0JfQ=; b=nAEmCo/FVNHalnJWmZJ7ZDKCA8YdTCOqRZyssZEq/egsgk5+6Uw873PoZqcVssGvTW cTq7zwQnsnbZw6B0k1krR4lbbcexzhTPXnAqItVqlCLOh/JBCyTyQBCmCjJ61bnro7qS AZsX3y/k2JIPpahka38gvt1V03BS86WY792GOJ7aeKDlhzonKa8fYIxyI1lY49djiwcD VOatmncwg9aYIL/Rvqd9z+bFjmAhEPxGjL7wqeTK7cR/1gOgpb4DDRTkIgsuaXxSfXf+ Vqqrwbv/M5arpGW7zphWtFrZ105oZfRtZwPC9PTOGO8DCE4JQFlimBazZuU3/4WH73jB BHeQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1760700117; x=1761304917; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=GPdqo0alu4iQYdIv2XuXRfTnuhzF5tbpLw/kkpI0JfQ=; b=qg8zG7yP6mweZGltiP4vp1vHTcZbIk8ke53rQ6WZ9it7yi9oqfuDBeV/kWe+wlsyWA +YGSxQDLKCR7bG916100TGP81m5CNdah+hpvd1fahUV6cwmQ04PPh5Lrc6dkFzXOpExf UFoS9hVY7+TO5Kph/FUCf0sf4A7UVYM09p+LTzLgZ0k1cy4dyWJt9ULOlHX4Ix32bu0v chHlkT9SVMfIYkCjZNojxl9ok2GUNJUEbyQQommyUzjELt6zSMu04xeMGZgq36ZSqLu8 4QSf76v/VkegOSYNiDhO08MvXfp0gBvjNcNvdxAuxnB1C9UHULGryQrZXll75X5vsMsI AZjw== X-Forwarded-Encrypted: i=1; AJvYcCX216ml/FDeHpUMjkL8TZFaFStp/iFFvkynAKJ/8i8wt8H+FpHsIXsMdardJN6XkZThtFUPn8CdF+Mk@vger.kernel.org X-Gm-Message-State: AOJu0YyNqcHZHsi8BPxrHeZmcdcBriPzku+wTF8OKNsQEYHiBqWm6lsr b8V5yrdnamGAaOu8NEnrRb5iIy7qJwMdjFrsXj3FQPLEG6Sye9ubpyOk X-Gm-Gg: ASbGncuaUDOUxg9uNMLFdh7NCd0nQmjtyxRhYy3bEvQ43IWPKWJLpkkPwmt9bH1AV4d 1IZ9NnVb0sSYP+2kQGDJTHMYiAgN21C5wJ15OT+ldKHuqFK8m+auWA2EXtLbMQsFlYAVvpOVLPO k0XMS84SrHlBpEvIIvKU9XejUVuFZPeY931H8WPLDN81jkpwYQ0rEB+kC1Eqd3jQdynRKp5TsQZ qKmjBWRFGmyXvC1w4BNrY+UNVNUCyr7QvO2ccRqSu8zU9hp/+alxKLUFsQnUxc6ayRNLmoOHsCx yuJhCqEFOF3b8xY020VINsi7WRuPl+NSmXXTb+fjU5vBgVFz7gsuFBXfx2fWPU44EQObQ6zBJSg q9qM6+edq+c8V+oHrzdzquF/vWmIJ3zdGT3USXtGXIf0wyytUYj2JwNGn7QZCht6yMz/Xq7CE99 4ArmIAeAmyASWFd9uiN158oscuh/Y= X-Google-Smtp-Source: AGHT+IHVLr79Aj1wmFsQfBf8luDTxUDCNFd8nKuGaUsCgVTKbksjEKUTdzlfSjzx9IgrO6A4BqLrMw== X-Received: by 2002:a17:906:f1c9:b0:b64:8464:68ca with SMTP id a640c23a62f3a-b64846468e0mr277225466b.19.1760700117100; Fri, 17 Oct 2025 04:21:57 -0700 (PDT) Received: from SMW024614.wbi.nxp.com ([128.77.115.157]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b5ccd1af35fsm788256166b.60.2025.10.17.04.21.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Oct 2025 04:21:56 -0700 (PDT) From: Laurentiu Mihalcea To: Abel Vesa , Peng Fan , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Shawn Guo , Fabio Estevam , Philipp Zabel , Daniel Baluta , Shengjiu Wang Cc: linux-clk@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Pengutronix Kernel Team Subject: [PATCH v2 6/8] reset: imx8mp-audiomix: Extend the driver usage Date: Fri, 17 Oct 2025 04:20:23 -0700 Message-ID: <20251017112025.11997-7-laurentiumihalcea111@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251017112025.11997-1-laurentiumihalcea111@gmail.com> References: <20251017112025.11997-1-laurentiumihalcea111@gmail.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Laurentiu Mihalcea Some NXP SoCs integrate one or more, per-subsystem, block control IPs, which allow users to control the assertion and de-assertion of the reset lines tied to some peripherals present in said subsystems. Some examples of such SoCs include i.MX8MP with AUDIOMIX block control and i.MX8ULP with SIM LPAV. Some of the aformentioned block control IPs exhibit a common pattern with respect to the assertion and de-assertion of the reset lines. Namely, the user is able to control the state of the reset line by toggling a bit from one of the IP's registers. Linux can take advantage of this pattern and, instead of having one driver for each block control IP, a single, more generic driver could be used. To allow this to happen, the previous approach, in which a single reset map is used, is replaced by a per-driver approach, in which each auxiliary device driver holds a reference to a certain reset map. Reviewed-by: Daniel Baluta Signed-off-by: Laurentiu Mihalcea --- drivers/reset/reset-imx8mp-audiomix.c | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) diff --git a/drivers/reset/reset-imx8mp-audiomix.c b/drivers/reset/reset-imx8mp-audiomix.c index c74ce6e04177..c370913107f5 100644 --- a/drivers/reset/reset-imx8mp-audiomix.c +++ b/drivers/reset/reset-imx8mp-audiomix.c @@ -24,7 +24,12 @@ struct imx8mp_reset_map { bool active_low; }; -static const struct imx8mp_reset_map reset_map[] = { +struct imx8mp_reset_info { + const struct imx8mp_reset_map *map; + int num_lines; +}; + +static const struct imx8mp_reset_map imx8mp_reset_map[] = { [IMX8MP_AUDIOMIX_EARC_RESET] = { .offset = IMX8MP_AUDIOMIX_EARC_RESET_OFFSET, .mask = BIT(0), @@ -45,10 +50,16 @@ static const struct imx8mp_reset_map reset_map[] = { }, }; +static const struct imx8mp_reset_info imx8mp_reset_info = { + .map = imx8mp_reset_map, + .num_lines = ARRAY_SIZE(imx8mp_reset_map), +}; + struct imx8mp_audiomix_reset { struct reset_controller_dev rcdev; void __iomem *base; struct regmap *regmap; + const struct imx8mp_reset_info *rinfo; }; static struct imx8mp_audiomix_reset *to_imx8mp_audiomix_reset(struct reset_controller_dev *rcdev) @@ -60,6 +71,7 @@ static int imx8mp_audiomix_update(struct reset_controller_dev *rcdev, unsigned long id, bool assert) { struct imx8mp_audiomix_reset *priv = to_imx8mp_audiomix_reset(rcdev); + const struct imx8mp_reset_map *reset_map = priv->rinfo->map; unsigned int mask, offset, active_low, shift, val; mask = reset_map[id].mask; @@ -144,7 +156,8 @@ static int imx8mp_audiomix_reset_probe(struct auxiliary_device *adev, return -ENOMEM; priv->rcdev.owner = THIS_MODULE; - priv->rcdev.nr_resets = ARRAY_SIZE(reset_map); + priv->rinfo = (const struct imx8mp_reset_info *)id->driver_data; + priv->rcdev.nr_resets = priv->rinfo->num_lines; priv->rcdev.ops = &imx8mp_audiomix_reset_ops; priv->rcdev.of_node = dev->parent->of_node; priv->rcdev.dev = dev; @@ -168,6 +181,7 @@ static int imx8mp_audiomix_reset_probe(struct auxiliary_device *adev, static const struct auxiliary_device_id imx8mp_audiomix_reset_ids[] = { { .name = "clk_imx8mp_audiomix.reset", + .driver_data = (kernel_ulong_t)&imx8mp_reset_info, }, { } }; -- 2.43.0