From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792773855; b=OuL9D6BjqnpxS6D9emdxWnClzBdLA4dHnkny0ZYL49v2RmW40N+9a7CVrKan5eRvf8Ix WzPG9e9cgVrvOJoRcJZrMJgouq+2tr+q7L0DW7mbaQ+kfB3/adli1zxI2R/u8ygaMmGHD n6ZAmVd6A5wcjhMSosVsZWwZA0nlUkJ8UI/xRuh9YAZH4/ROvPcdYW2/lbee0k3BxCXd1 fzZLFhIr3zlbztROSgAAiFCBM57/QNekG2RQ+ZrAQxlXGAkmv6Rq6foHfQH53F6eF4dcC bOoxsVOi0tL3PbYORD3lM6v4zQ/DHeq3UVb2VXDJ3KyIAEObcd3KkF7mad/+LlQAVog== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792773855; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=BGVE8uSb08IX4tyvDbhrs8usVYaxfzrTpmvCN7htH+c=; b=BviAd87jvos41kMDKR8mdvxIDNvZ2MYV/UqAYyodZwmbQ9mt6VSEmpvbo4bw4DaICctB A5263+mybD/9Lqi/rLppmJuVAlVIZG3+pPNCNcW++2KcJHI8iRdORRFNIVqey9r6d0ypn EiHH14bcPy0lB7rvS34Aj7lmpx87ss5sRWtNPMVHoDn4iFcv4sxbQIjEhY3b2pIe/03f8 59K4gKOrlNlzgSQt6YpVnHNZtcuzibawN1HurA0/Fd54mrcL5rG+UuC6msmPPVafdkdAI 0L925IdPRNvhq6ibVaGvUm3+xs3eMe7QbVx7ziUX3xstD2nwEAhxlfTdUFSyqRszjFA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=tDvyxVGa; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3890260A2604; Fri, 23 Oct 2026 16:44:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=tDvyxVGa Received: by smtp.kernel.org (Postfix) with ESMTPSA id 533C61F01828; Fri, 23 Oct 2026 16:44:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1792773854; bh=BGVE8uSb08IX4tyvDbhrs8usVYaxfzrTpmvCN7htH+c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=tDvyxVGa4n7BjNcTbAF035k+C7DALn7Mzzf9T/lCVdMovMxRgrCSgHd5FZWmuJ0ga B/4kPyvU0i/5v7Pv3Wm2UB+gOihJXEaK5HJik0tJb47l3xfV4LK+zcgRsxWbr4ooW3 +YYxy33HEOApcSrTTfoPgWoG+RX+My1uwuP7xIuQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Andy Shevchenko , Charles Keepax , Mark Brown , Sasha Levin Subject: [PATCH 6.18 038/193] regcache: Add ->populate() callback to separate from ->init() Date: Fri, 23 Oct 2026 18:35:15 +0200 Message-ID: <20261023163715.104520614@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261023163714.201276352@linuxfoundation.org> References: <20261023163714.201276352@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Andy Shevchenko [ Upstream commit 94a3a95f03154d8d4c6206950a7f6ef9a30baec6 ] In the future changes we would like to change the flow of the cache handling. Add ->populate() callback in order to prepare for that. Signed-off-by: Andy Shevchenko Reviewed-by: Charles Keepax Link: https://patch.msgid.link/20251031080540.3970776-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown Stable-dep-of: abff0a48b110 ("regmap: Drop map lock during cache init and exit") Signed-off-by: Sasha Levin --- drivers/base/regmap/internal.h | 1 + drivers/base/regmap/regcache.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h index 6f31240ee4a9a..6efed02c21c5f 100644 --- a/drivers/base/regmap/internal.h +++ b/drivers/base/regmap/internal.h @@ -186,6 +186,7 @@ struct regcache_ops { enum regcache_type type; int (*init)(struct regmap *map); int (*exit)(struct regmap *map); + int (*populate)(struct regmap *map); #ifdef CONFIG_DEBUG_FS void (*debugfs_init)(struct regmap *map); #endif diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index c7650fa434add..149945690cdf1 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -221,8 +221,24 @@ int regcache_init(struct regmap *map, const struct regmap_config *config) if (ret) goto err_free; } + + if (map->num_reg_defaults && map->cache_ops->populate) { + dev_dbg(map->dev, "Populating %s cache\n", map->cache_ops->name); + map->lock(map->lock_arg); + ret = map->cache_ops->populate(map); + map->unlock(map->lock_arg); + if (ret) + goto err_exit; + } return 0; +err_exit: + if (map->cache_ops->exit) { + dev_dbg(map->dev, "Destroying %s cache\n", map->cache_ops->name); + map->lock(map->lock_arg); + ret = map->cache_ops->exit(map); + map->unlock(map->lock_arg); + } err_free: kfree(map->reg_defaults); if (map->cache_free) -- 2.53.0