From nobody Sun Apr 5 21:18:42 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 17CA9241C8C; Tue, 24 Feb 2026 01:45:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771897550; cv=none; b=lNbfmZvWhSUXtE3NrueNafhRFYXZjgwoNpb5b/Sej+cBU/SOziBY3ohbaUakvmTQC9/QmU5I68Mx7sEQ09pHNvYxppFoMjd1bYv7QXzQndNWWHSct/lr0hipBCQtCCUxK6gsFJToTe2FR7XWksgiWZYOOxxaxZrBlUECoWF5Q14= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771897550; c=relaxed/simple; bh=5L1aAyrT1CnMHAdDXtMxEsg5bTIoOtEBzpy9bU5cmQo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=SF/GtaD4DvmhgYspK49ojtsx5znNC+F7qwpSYbEsNFjydSUQDdF8WA7Vp4MGxTSyb3jtDYCfEhmw8RKTZ+vBzlIjhW3UMow167Nq6tRQhyKuAxkZwEhRNVWCkB9Z9wTlZLk84bj//zbfcKjddGPaYWBwLqLL7a5h2tSX7KQSyuQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TKPLSjH/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TKPLSjH/" Received: by smtp.kernel.org (Postfix) with ESMTPS id D8CBCC2BCB1; Tue, 24 Feb 2026 01:45:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771897549; bh=5L1aAyrT1CnMHAdDXtMxEsg5bTIoOtEBzpy9bU5cmQo=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=TKPLSjH/c+PwuUsFIn68NW22pTVvXtjFANLnf57LrWKTefqRb7xNrgjtpZa6vKHaL WB06NuukSE05liTUl3yY98iv3jxBQrITa2yP8e/opVUfOnj9EojDgwt/VAuosvXbV+ 7Cld1Lk6963QkwhZyLV+7TmWSrvnLjIHeRYWbGLtuIBh8pbPSQUIIFiKGaJo7Z+yOP W/2tRtkdXUcJBVWTuAKQX6mOWEHyrMCcuoqkHT0/q0gr9/tgceIB7c5f46jP/aljTE UKYbRY7pLuJYKeQCwi1q6TTeQAQmzBgeEppbbONT4afemMPFmJqylEEajCJHGtuSkV ARQqBA15/d6vw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id CEC2EEEC2BD; Tue, 24 Feb 2026 01:45:49 +0000 (UTC) From: Amit Sunil Dhamne via B4 Relay Date: Tue, 24 Feb 2026 01:45:34 +0000 Subject: [PATCH v8 4/6] lib/linear_ranges: Add linear_range_get_selector_high_array Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260224-max77759-charger-v8-4-eb86bd570e9c@google.com> References: <20260224-max77759-charger-v8-0-eb86bd570e9c@google.com> In-Reply-To: <20260224-max77759-charger-v8-0-eb86bd570e9c@google.com> To: Sebastian Reichel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Andr=C3=A9_Draszik?= , Lee Jones , Greg Kroah-Hartman , Badhri Jagan Sridharan , Heikki Krogerus , Peter Griffin , Tudor Ambarus , Alim Akhtar , Mark Brown , Matti Vaittinen , Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, RD Babiera , Kyle Tso , Amit Sunil Dhamne X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1771897548; l=3072; i=amitsd@google.com; s=20241031; h=from:subject:message-id; bh=66O0TCiwwg6+0syFe+iqI5+JzrTIE96SPH1q/Ujqi8Q=; b=4GTvO9+fSlJ7boox9mtma4Z4sebxG4g2OMV0N60dr+exeQ5F9ViEqWvrV9loY5IL2lUxUot6o 52/BR5Di6UQD5bTP6b1LeKgs5kRnIXP9dloPRuZUo/ZsoQgQNgV978G X-Developer-Key: i=amitsd@google.com; a=ed25519; pk=wD+XZSST4dmnNZf62/lqJpLm7fiyT8iv462zmQ3H6bI= X-Endpoint-Received: by B4 Relay for amitsd@google.com/20241031 with auth_id=262 X-Original-From: Amit Sunil Dhamne Reply-To: amitsd@google.com From: Amit Sunil Dhamne Add a helper function to find the selector for a given value in a linear range array. The selector should be such that the value it represents should be higher or equal to the given value. Signed-off-by: Amit Sunil Dhamne Reviewed-by: Matti Vaittinen Acked-by: Mark Brown --- include/linux/linear_range.h | 3 +++ lib/linear_ranges.c | 36 ++++++++++++++++++++++++++++++++++++ 2 files changed, 39 insertions(+) diff --git a/include/linux/linear_range.h b/include/linux/linear_range.h index 2e4f4c3539c075a6caa69f6ae750a556f41fce5d..0f3037f1a94f58667ca7c5200df= da78afafe0cfd 100644 --- a/include/linux/linear_range.h +++ b/include/linux/linear_range.h @@ -57,5 +57,8 @@ void linear_range_get_selector_within(const struct linear= _range *r, int linear_range_get_selector_low_array(const struct linear_range *r, int ranges, unsigned int val, unsigned int *selector, bool *found); +int linear_range_get_selector_high_array(const struct linear_range *r, + int ranges, unsigned int val, + unsigned int *selector, bool *found); =20 #endif diff --git a/lib/linear_ranges.c b/lib/linear_ranges.c index a1a7dfa881def894cc8cce8368cb6e9c21dcd6b1..c85583678f6b52a494f8c321ce2= d307bdb6845ce 100644 --- a/lib/linear_ranges.c +++ b/lib/linear_ranges.c @@ -241,6 +241,42 @@ int linear_range_get_selector_high(const struct linear= _range *r, } EXPORT_SYMBOL_GPL(linear_range_get_selector_high); =20 +/** + * linear_range_get_selector_high_array - return linear range selector for= value + * @r: pointer to array of linear ranges where selector is looked from + * @ranges: amount of ranges to scan from array + * @val: value for which the selector is searched + * @selector: address where found selector value is updated + * @found: flag to indicate that given value was in the range + * + * Scan array of ranges for selector for which range value matches given + * input value. Value is matching if it is equal or higher than given value + * If given value is found to be in a range scanning is stopped and @found= is + * set true. If a range with values greater than given value is found + * but the range min is being greater than given value, then the range's + * lowest selector is updated to @selector and scanning is stopped. + * + * Return: 0 on success, -EINVAL if range array is invalid or does not con= tain + * range with a value greater or equal to given value + */ +int linear_range_get_selector_high_array(const struct linear_range *r, + int ranges, unsigned int val, + unsigned int *selector, bool *found) +{ + int i; + int ret; + + for (i =3D 0; i < ranges; i++) { + ret =3D linear_range_get_selector_high(&r[i], val, selector, + found); + if (!ret) + return 0; + } + + return -EINVAL; +} +EXPORT_SYMBOL_GPL(linear_range_get_selector_high_array); + /** * linear_range_get_selector_within - return linear range selector for val= ue * @r: pointer to linear range where selector is looked from --=20 2.53.0.371.g1d285c8824-goog