From patchwork Thu Apr 10 15:22:38 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sakari Ailus X-Patchwork-Id: 879813 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 36F7C1E5B94 for ; Thu, 10 Apr 2025 15:23:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.17 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744298582; cv=none; b=GEmHaX7r8NnGfDYCkKLSh7gLTt1oM/WYtcUxofDvTm9u+jrjJtCVQ5a5001WBjoB0j0n8yrAqW8KcR+uIPwgeckMc0//t5Nt0HH60fQrCCFVe6cXwFCjU8jo+GdamcVi1EiM9lLmF+Hlm8ll8rYLvGXcprkKcsQXXVV31d2PbYU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744298582; c=relaxed/simple; bh=1rmJxpqqkGXBWjcPvpAAKCZLWRdEQASHVQu+D1tpj9E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=VOUHbqPlepWUamnzBUbJ9zlDZZ2iLRVyQ6LHIClpZIKz+HXh9rO4QsDJzLm7+U+dz5C1WX/Y0fPIzOknJ6ucEpeoYpUOWU3qve2/Gfqe4EPlyJ4Ncdmb+ZRFM99G8FOc/bfxBxPgilMfNyVdamFCvxZqbOfDdlrYMAS/+IJ8ubo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=boE8mZOa; arc=none smtp.client-ip=192.198.163.17 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="boE8mZOa" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1744298580; x=1775834580; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=1rmJxpqqkGXBWjcPvpAAKCZLWRdEQASHVQu+D1tpj9E=; b=boE8mZOaGkZXeJsBpnrTXl/cA++karg5YvdrzXBdv7+qVshQAmjm6Zzu auWUznf0+XRoqseoSAOedI5RrS/drTHJI8eLnqAcBUaGWPnp90J/MW9bN S0bC0bWMTiewJtcebnYtyQXL6AHgcG8Y9e0SydCYTq65kipCdjXuwLe3V R8cnK3foYNOShRWWi5nWaF9s6VCDaZ7Bn/jTIPeOKRzSifOlfg/h491es dLEjuphVYinajIy+4O+gbsRBYXGZiFbSciw3qChsXvwqDBXdE0Py+yUG+ PaDzxRlkr9mWIadlEXgLVFzI3mSD/1C91RmufuPQtqNlihrlYkPoN6hPY w==; X-CSE-ConnectionGUID: nsI+5ynGQPSgtzAqAAjiVQ== X-CSE-MsgGUID: Sfy410ZBS6S4Jbu0izc+LQ== X-IronPort-AV: E=McAfee;i="6700,10204,11400"; a="45716300" X-IronPort-AV: E=Sophos;i="6.15,202,1739865600"; d="scan'208";a="45716300" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2025 08:22:56 -0700 X-CSE-ConnectionGUID: bC5JV7arSSy41yOILBG4rA== X-CSE-MsgGUID: VvkIrii3SNinWOPC6+RzqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,202,1739865600"; d="scan'208";a="134108199" Received: from turnipsi.fi.intel.com (HELO kekkonen.fi.intel.com) ([10.237.72.44]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2025 08:22:52 -0700 Received: from punajuuri.localdomain (punajuuri.localdomain [192.168.240.130]) by kekkonen.fi.intel.com (Postfix) with ESMTP id E87D411FB1F; Thu, 10 Apr 2025 18:22:49 +0300 (EEST) Received: from sailus by punajuuri.localdomain with local (Exim 4.96) (envelope-from ) id 1u2tjt-00HOc3-30; Thu, 10 Apr 2025 18:22:49 +0300 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo From: Sakari Ailus To: linux-crypto@vger.kernel.org Cc: Olivia Mackall , Herbert Xu , Nicolas Ferre , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , Avi Fishman , Tomer Maimon , Tali Perry , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, openbmc@lists.ozlabs.org Subject: [PATCH v2 2/3] hwrng: mtk - Add struct device pointer to device context struct Date: Thu, 10 Apr 2025 18:22:38 +0300 Message-Id: <20250410152239.4146166-3-sakari.ailus@linux.intel.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250410152239.4146166-1-sakari.ailus@linux.intel.com> References: <20250410152239.4146166-1-sakari.ailus@linux.intel.com> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add a struct device pointer field to the device's context struct. This makes using the unsigned long priv pointer in struct hwrng unnecessary, so remove that one as well. Signed-off-by: Sakari Ailus --- drivers/char/hw_random/mtk-rng.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c index 1e3048f2bb38..b7fa1bc1122b 100644 --- a/drivers/char/hw_random/mtk-rng.c +++ b/drivers/char/hw_random/mtk-rng.c @@ -36,6 +36,7 @@ struct mtk_rng { void __iomem *base; struct clk *clk; struct hwrng rng; + struct device *dev; }; static int mtk_rng_init(struct hwrng *rng) @@ -85,7 +86,7 @@ static int mtk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait) struct mtk_rng *priv = to_mtk_rng(rng); int retval = 0; - pm_runtime_get_sync((struct device *)priv->rng.priv); + pm_runtime_get_sync(priv->dev); while (max >= sizeof(u32)) { if (!mtk_rng_wait_ready(rng, wait)) @@ -97,8 +98,8 @@ static int mtk_rng_read(struct hwrng *rng, void *buf, size_t max, bool wait) max -= sizeof(u32); } - pm_runtime_mark_last_busy((struct device *)priv->rng.priv); - pm_runtime_put_sync_autosuspend((struct device *)priv->rng.priv); + pm_runtime_mark_last_busy(priv->dev); + pm_runtime_put_sync_autosuspend(priv->dev); return retval || !wait ? retval : -EIO; } @@ -112,13 +113,13 @@ static int mtk_rng_probe(struct platform_device *pdev) if (!priv) return -ENOMEM; + priv->dev = &pdev->dev; priv->rng.name = pdev->name; #ifndef CONFIG_PM priv->rng.init = mtk_rng_init; priv->rng.cleanup = mtk_rng_cleanup; #endif priv->rng.read = mtk_rng_read; - priv->rng.priv = (unsigned long)&pdev->dev; priv->rng.quality = 900; priv->clk = devm_clk_get(&pdev->dev, "rng");