From mboxrd@z Thu Jan 1 00:00:00 1970 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 9F8A7330B26; Wed, 18 Feb 2026 21:59:23 +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=1771451963; cv=none; b=RLNvXCdR33HN/1UKuAuN6Egq4vAM/eLyYp+JLqMhzHULhlnf9sxbjoXajubCtCTXq7uU+3t9FhvH5iyP6X+Av88lR62fgbehSHGkDOaU12bJwq/+rEiX0uPXzReKJXzuTAYYflXKBDX7pYbuN9xjY18rbX/VZ6Wy6zqOrIRQqNA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771451963; c=relaxed/simple; bh=TN/mvnq4+/WSb/ePlH/UChrJy7IeIXksiBl2R5d8uos=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=O1x/Pi+3cMtOdW15vijxzO5HyQXQfTQW3xYIXxKjKjsFo7Zuyq6zXRKePbgHh17bQDXcyKDIDWomSVe30l1oNsfIuJ6BN6+WsZgG/4o/XimX4FjiMUfpAb4HtOYSx8VLZfPvJVfPVjbxaRCXaDNKV4W1x45kYgBxHrcYeMXXp9g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fA/WbAIH; 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="fA/WbAIH" Received: by smtp.kernel.org (Postfix) with ESMTPS id 3BAA1C116D0; Wed, 18 Feb 2026 21:59:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771451963; bh=TN/mvnq4+/WSb/ePlH/UChrJy7IeIXksiBl2R5d8uos=; h=From:Subject:Date:To:Cc:Reply-To:From; b=fA/WbAIHvfni0zEoowhzwNdnUjnLFGvFZIr4HbkhLhuD20CNx/sSwjoEKy/2LrLPU AK73LYhQukKwO55Xi1vIimT0L9T/l70Krtx8kIyiL9yW3D4oIY82zlBXkXP4lQZwZ4 9atmvWt8suFj5gXKQDxO1eIAxPCNb6DidESTEM92XSrtdB+Xow1NA9/VRMxoJz21oj o1o6JfaS4jFyk7SBDCGG97vw6Bq+PSbTJaEhIGv/qXJf3vXaXNWHGdOktw/++x2vrR s6p14W3JT6nmTGcugd8/T1FjplamkQNA9Zf4RMFFrsygzkTwvMNvGW37Hn6wJm2tKn 4QCkYyeqWLvAg== 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 2549FE9A047; Wed, 18 Feb 2026 21:59:23 +0000 (UTC) From: Amit Sunil Dhamne via B4 Relay Subject: [PATCH v7 0/6] Introduce MAX77759 charger driver Date: Wed, 18 Feb 2026 21:59:08 +0000 Message-Id: <20260218-max77759-charger-v7-0-e8d907ce69c5@google.com> 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: 8bit X-B4-Tracking: v=1; b=H4sIAC02lmkC/23QQW7DIBAF0KtErEsFAzNAV71H1QUYcJCaUOHKS hX57sVRq6Sylx/EG+Zf2ZRaSRN7OVxZS3OZSj33YJ4ObDj685h4iT0zEIBSCuQnfzHGoOP9uo2 pcYsQCCgSSc/6s8+WcrncyLf3no9l+qrt+zZhluvpLwZqi82SC04Bkg42m4z6dax1/EjPQz2xV ZvhLoC0OwJ0AQKgc1Z4srQR1IMAZkdQXUCdiHTGwTvYCPpPINE/sSPodQunQenBxhTlRsC7AGK vB+xCQKEcKkMe80agB0HqHYHWHuwgXIje6PC/yWVZfgDOhRFO+wEAAA== X-Change-ID: 20251105-max77759-charger-852b626d661a 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 , Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1771451962; l=5921; i=amitsd@google.com; s=20241031; h=from:subject:message-id; bh=TN/mvnq4+/WSb/ePlH/UChrJy7IeIXksiBl2R5d8uos=; b=EZAtrGQYncnl+kfu0WnW0wIhMLOGKATlGjIL0kW5M1Z95qM99t+1By0oKEKj+t1WLgYKD3mA+ LL1hUkr0ZnpBhwr8Nz9f2kVFeq0hWFu4/090gmAT54QwNWtRsGgxS39 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 MAX77759 PMIC is used in Pixel 6 and 6 Pro (Oriole/Raven) boards. One of the functions of the MAX77759 PMIC is a battery charger. This patchset introduces a driver for this function. One of the unique features of this charger driver is that it works with a USB input where the Type-C controller is TCPCI based. Changes to the board files will follow soon once this patchset is reviewed. For reference to the MAX77759 MFD based patchset (present in upstream): https://lore.kernel.org/all/20250509-max77759-mfd-v10-0-962ac15ee3ef@linaro.org/ Dependency list for patches (directionality indicates depends on): [6] -> [5] -> [4] & [3] Signed-off-by: Amit Sunil Dhamne --- Changes in v7: - Add register relock for protected registers in fail path. (André Draszik) - Switch to usage of scoped_guard instead of guard. (LKP test bot) - Link to v6: https://lore.kernel.org/r/20260214-max77759-charger-v6-0-28c09bda74b4@google.com Changes in v6: - Linear Range usage (André Draszik): - Dedicate individual arrays for inlim, chgcc & chg_cv_prm to simplify code. - Use numerical values instead of macros for linear_range array init. - Remove macros defining current and voltage limits due to above. - Didn't use Reviewed-by tag for Patch 3 due to the above. - Add new linear_ranges api to leverage it for obtaining selector values. - Improve voltage and current getters and setters functions by leveraging existing and new linear_ranges API. - IRQ related changes (André Draszik) - Dedicated names for individual irqs. - Refactor irq handlers. - Ratelimit prints - Retry mechanism (André Draszik): - Initialize error retry counter to 0 when psy work is scheduled on a new notifier event. - Protect the counter using a lock. - Add appropriate prints. - Link to v5: https://lore.kernel.org/r/20260203-max77759-charger-v5-0-b50395376a5f@google.com Changes in v5: - Use linear_range library instead of reinventing it. (André Draszik) - This requires a selector_max value so modified mfd/max77759.h to include it for CHGCC and CHG_ILIM. - Removed "reviewed-by" for Patch 3 (mfd) due to above - Use asnyc probe type. (André Draszik) - Retry mechanism for psy_work. (André Draszik) - Minor nits (André Draszik): - Use named initializers for instantiating structs. - Use static qualifier for `psy_name` variable. - Refactor if-else ladder to remove else handling if return in prior "if" loop. - Remove redundant `unlikely`. - Link to v4: https://lore.kernel.org/r/20260121-max77759-charger-v4-0-694234c8ded1@google.com Changes in v4: - Removed a stray tabspace in mfd/max77759.h. (André Draszik) - Fixed the following issues in Patch 4/5 (André Draszik): - Re-order Kconfig entry - Refactored to not use global variable - Use of clamp() to clamp values instead of duplicating logic - Return IRQ_NONE for unhandled irqs or error conditions - Remove debug messages in irq handler - Refactor code to use dev_err_probe in *_init_irqhandler() - Remove unneeded irq_flags - Check return values of regmap ops - Other nits like newlines, not using greedy init, using print stmnts - Link to v3: https://lore.kernel.org/r/20251227-max77759-charger-v3-0-54e664f5ca92@google.com Changes in v3: - Had incorrectly folded the charger sub-device with the pmic parent. Corrected it. (Krzysztof Kozlowski) - Link to v2: https://lore.kernel.org/r/20251218-max77759-charger-v2-0-2b259980a686@google.com Changes in v2: - Fold charger binding in maxim,max77759-charger.yaml to its parent node. (Krzysztof Kozlowski) - Renamed regulator supplier & consumer. (Krzysztof Kozlowski & Heikki Krogerus) - Removed explicit setting of irq trigger types in max77759 driver. (André Draszik & Krzysztof Kozlowski) - Complete bit definitions for IRQ registers. (André Draszik) - Consolidate all bit definitions for charger IP in mfd/max77759.h. (André Draszik) - Modify the handling of charger IRQs such that regmap IRQ chip handles masking, de-mux and acking of interrupts. (André Draszik) - Remove unused macro definitions relating to Charger modes in tcpci maxim driver (André Draszik) - Add dependency on Regulator class in Kconfig definition for max77759 chg. (Kernel Test Robot) - Link to v1: https://lore.kernel.org/r/20251123-max77759-charger-v1-0-6b2e4b8f7f54@google.com --- Amit Sunil Dhamne (6): dt-bindings: mfd: maxim,max77759: reference power-supply schema and add regulator property dt-bindings: usb: maxim,max33359: Add supply property for vbus mfd: max77759: add register bitmasks and modify irq configs for charger lib/linear_ranges: Add linear_range_get_selector_high_array power: supply: max77759: add charger driver usb: typec: tcpm/tcpci_maxim: deprecate WAR for setting charger mode .../devicetree/bindings/mfd/maxim,max77759.yaml | 16 +- .../devicetree/bindings/usb/maxim,max33359.yaml | 4 + MAINTAINERS | 6 + drivers/mfd/max77759.c | 91 ++- drivers/power/supply/Kconfig | 11 + drivers/power/supply/Makefile | 1 + drivers/power/supply/max77759_charger.c | 774 +++++++++++++++++++++ drivers/usb/typec/tcpm/tcpci_maxim.h | 1 + drivers/usb/typec/tcpm/tcpci_maxim_core.c | 54 +- include/linux/linear_range.h | 3 + include/linux/mfd/max77759.h | 176 ++++- lib/linear_ranges.c | 36 + 12 files changed, 1114 insertions(+), 59 deletions(-) --- base-commit: 8dfce8991b95d8625d0a1d2896e42f93b9d7f68d change-id: 20251105-max77759-charger-852b626d661a Best regards, -- Amit Sunil Dhamne