From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E4C6CA0EEB for ; Sun, 24 Aug 2025 18:27:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=rKc3BDwPSI5vVhe+Fy8nCgEowT8FPjvxtLH5wzGc3uc=; b=NOYCypOJu3/uMNeSy7AH9vySGu gY51xpiM9+WImCOg4TopuzEqnzydPPJRCPwAg38Fy7SG3E2R5u5sF+LDgXQTMEZYunbB6j+MwcvmU HpufQOdAgft+XqBH6GpGnGqvTs4k1AqVBQpXyr8x2zCHBQ4v6MPxxHv1Aexi5NpprEca9F7YwMq3h E8YCgPphrC7x7vJcj8LStEO/7Mc4RExZqfa4kng1obi3VeIVgwwXYIWC+jlGudFV0A8zAj9aNLsma hOemYbtPVsZ0BLz+lKNgE2nTiLhUb2w1pVt7MIpkVMaq+bOyayCQy/UNQppt0G/Ji3DND5Gc3/hq1 T4CdWMkg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uqFRI-00000006Rcv-2xcc; Sun, 24 Aug 2025 18:27:36 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uqF9X-00000006Pys-23ZJ for linux-arm-kernel@lists.infradead.org; Sun, 24 Aug 2025 18:09:16 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 37CC74171B; Sun, 24 Aug 2025 18:09:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2105AC4CEF4; Sun, 24 Aug 2025 18:09:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756058955; bh=np+VrBVospNSVz3iEYSM8cUG8EfYPYLfyDd/NbXqYT8=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=QllgAN/35E0N/fl3OlfDYFxmkkjUQq8LaArzXX6nlr85KfEQTpilF3S+9ZIWD0cSW lz0RAgL0ZVGJYHk6x8vqogdd0c8ATf3HKxG1nLyhsxeGb5jLo6OaOEPmFSXveqcBB8 Lj2t47+67V0Agu+b/qlUPLZucnLpqUY5h/JoDVeUjfcjHqDxv/zVDDxwxxLlV3Ouel 2fcIs9NAffNwAC/SyxdR/zrCXZ5eMhV/aMGSJVoc04udjSFOBItNUPrVaK1P2VkQvo 1dmjonveLmM5kfc8w+ahlPEr8Nj50Gp87W06s/gc9lWAdUbOSwjtxc8E0dfJB/pnCQ ahfo1RTB0SZxA== Message-ID: Date: Sun, 24 Aug 2025 19:11:38 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] firmware: exynos-acpm: add DVFS protocol To: Tudor Ambarus , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Peter Griffin , =?UTF-8?Q?Andr=C3=A9_Draszik?= , Michael Turquette , Stephen Boyd , Alim Akhtar , Sylwester Nawrocki , Chanwoo Choi Cc: linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, willmcvicker@google.com, kernel-team@android.com References: <20250819-acpm-clk-v1-0-6bbd97474671@linaro.org> <20250819-acpm-clk-v1-2-6bbd97474671@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; keydata= xsFNBFVDQq4BEAC6KeLOfFsAvFMBsrCrJ2bCalhPv5+KQF2PS2+iwZI8BpRZoV+Bd5kWvN79 cFgcqTTuNHjAvxtUG8pQgGTHAObYs6xeYJtjUH0ZX6ndJ33FJYf5V3yXqqjcZ30FgHzJCFUu JMp7PSyMPzpUXfU12yfcRYVEMQrmplNZssmYhiTeVicuOOypWugZKVLGNm0IweVCaZ/DJDIH gNbpvVwjcKYrx85m9cBVEBUGaQP6AT7qlVCkrf50v8bofSIyVa2xmubbAwwFA1oxoOusjPIE J3iadrwpFvsZjF5uHAKS+7wHLoW9hVzOnLbX6ajk5Hf8Pb1m+VH/E8bPBNNYKkfTtypTDUCj NYcd27tjnXfG+SDs/EXNUAIRefCyvaRG7oRYF3Ec+2RgQDRnmmjCjoQNbFrJvJkFHlPeHaeS BosGY+XWKydnmsfY7SSnjAzLUGAFhLd/XDVpb1Een2XucPpKvt9ORF+48gy12FA5GduRLhQU vK4tU7ojoem/G23PcowM1CwPurC8sAVsQb9KmwTGh7rVz3ks3w/zfGBy3+WmLg++C2Wct6nM Pd8/6CBVjEWqD06/RjI2AnjIq5fSEH/BIfXXfC68nMp9BZoy3So4ZsbOlBmtAPvMYX6U8VwD TNeBxJu5Ex0Izf1NV9CzC3nNaFUYOY8KfN01X5SExAoVTr09ewARAQABzSVLcnp5c3p0b2Yg S296bG93c2tpIDxrcnprQGtlcm5lbC5vcmc+wsGVBBMBCgA/AhsDBgsJCAcDAgYVCAIJCgsE FgIDAQIeAQIXgBYhBJvQfg4MUfjVlne3VBuTQ307QWKbBQJoF1BKBQkWlnSaAAoJEBuTQ307 QWKbHukP/3t4tRp/bvDnxJfmNdNVn0gv9ep3L39IntPalBFwRKytqeQkzAju0whYWg+R/rwp +r2I1Fzwt7+PTjsnMFlh1AZxGDmP5MFkzVsMnfX1lGiXhYSOMP97XL6R1QSXxaWOpGNCDaUl ajorB0lJDcC0q3xAdwzRConxYVhlgmTrRiD8oLlSCD5baEAt5Zw17UTNDnDGmZQKR0fqLpWy 786Lm5OScb7DjEgcA2PRm17st4UQ1kF0rQHokVaotxRM74PPDB8bCsunlghJl1DRK9s1aSuN hL1Pv9VD8b4dFNvCo7b4hfAANPU67W40AaaGZ3UAfmw+1MYyo4QuAZGKzaP2ukbdCD/DYnqi tJy88XqWtyb4UQWKNoQqGKzlYXdKsldYqrLHGoMvj1UN9XcRtXHST/IaLn72o7j7/h/Ac5EL 8lSUVIG4TYn59NyxxAXa07Wi6zjVL1U11fTnFmE29ALYQEXKBI3KUO1A3p4sQWzU7uRmbuxn naUmm8RbpMcOfa9JjlXCLmQ5IP7Rr5tYZUCkZz08LIfF8UMXwH7OOEX87Y++EkAB+pzKZNNd hwoXulTAgjSy+OiaLtuCys9VdXLZ3Zy314azaCU3BoWgaMV0eAW/+gprWMXQM1lrlzvwlD/k whyy9wGf0AEPpLssLVt9VVxNjo6BIkt6d1pMg6mHsUEVzsFNBFVDXDQBEADNkrQYSREUL4D3 Gws46JEoZ9HEQOKtkrwjrzlw/tCmqVzERRPvz2Xg8n7+HRCrgqnodIYoUh5WsU84N03KlLue MNsWLJBvBaubYN4JuJIdRr4dS4oyF1/fQAQPHh8Thpiz0SAZFx6iWKB7Qrz3OrGCjTPcW6ei OMheesVS5hxietSmlin+SilmIAPZHx7n242u6kdHOh+/SyLImKn/dh9RzatVpUKbv34eP1wA GldWsRxbf3WP9pFNObSzI/Bo3kA89Xx2rO2roC+Gq4LeHvo7ptzcLcrqaHUAcZ3CgFG88CnA 6z6lBZn0WyewEcPOPdcUB2Q7D/NiUY+HDiV99rAYPJztjeTrBSTnHeSBPb+qn5ZZGQwIdUW9 YegxWKvXXHTwB5eMzo/RB6vffwqcnHDoe0q7VgzRRZJwpi6aMIXLfeWZ5Wrwaw2zldFuO4Dt 91pFzBSOIpeMtfgb/Pfe/a1WJ/GgaIRIBE+NUqckM+3zJHGmVPqJP/h2Iwv6nw8U+7Yyl6gU BLHFTg2hYnLFJI4Xjg+AX1hHFVKmvl3VBHIsBv0oDcsQWXqY+NaFahT0lRPjYtrTa1v3tem/ JoFzZ4B0p27K+qQCF2R96hVvuEyjzBmdq2esyE6zIqftdo4MOJho8uctOiWbwNNq2U9pPWmu 4vXVFBYIGmpyNPYzRm0QPwARAQABwsF8BBgBCgAmAhsMFiEEm9B+DgxR+NWWd7dUG5NDfTtB YpsFAmgXUF8FCRaWWyoACgkQG5NDfTtBYptO0w//dlXJs5/42hAXKsk+PDg3wyEFb4NpyA1v qmx7SfAzk9Hf6lWwU1O6AbqNMbh6PjEwadKUk1m04S7EjdQLsj/MBSgoQtCT3MDmWUUtHZd5 RYIPnPq3WVB47GtuO6/u375tsxhtf7vt95QSYJwCB+ZUgo4T+FV4hquZ4AsRkbgavtIzQisg Dgv76tnEv3YHV8Jn9mi/Bu0FURF+5kpdMfgo1sq6RXNQ//TVf8yFgRtTUdXxW/qHjlYURrm2 H4kutobVEIxiyu6m05q3e9eZB/TaMMNVORx+1kM3j7f0rwtEYUFzY1ygQfpcMDPl7pRYoJjB dSsm0ZuzDaCwaxg2t8hqQJBzJCezTOIkjHUsWAK+tEbU4Z4SnNpCyM3fBqsgYdJxjyC/tWVT AQ18NRLtPw7tK1rdcwCl0GFQHwSwk5pDpz1NH40e6lU+NcXSeiqkDDRkHlftKPV/dV+lQXiu jWt87ecuHlpL3uuQ0ZZNWqHgZoQLXoqC2ZV5KrtKWb/jyiFX/sxSrodALf0zf+tfHv0FZWT2 zHjUqd0t4njD/UOsuIMOQn4Ig0SdivYPfZukb5cdasKJukG1NOpbW7yRNivaCnfZz6dTawXw XRIV/KDsHQiyVxKvN73bThKhONkcX2LWuD928tAR6XMM2G5ovxLe09vuOzzfTWQDsm++9UKF a/A= In-Reply-To: <20250819-acpm-clk-v1-2-6bbd97474671@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250824_110915_574915_3914F388 X-CRM114-Status: GOOD ( 15.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 19/08/2025 13:45, Tudor Ambarus wrote: > Add ACPM DVFS protocol handler. It constructs DVFS messages that > the APM firmware can understand. > > Signed-off-by: Tudor Ambarus > --- > drivers/firmware/samsung/Makefile | 4 +- > drivers/firmware/samsung/exynos-acpm-dvfs.c | 85 ++++++++++++++++++++++ > drivers/firmware/samsung/exynos-acpm-dvfs.h | 21 ++++++ > drivers/firmware/samsung/exynos-acpm.c | 5 ++ > .../linux/firmware/samsung/exynos-acpm-protocol.h | 10 +++ > 5 files changed, 124 insertions(+), 1 deletion(-) > > diff --git a/drivers/firmware/samsung/Makefile b/drivers/firmware/samsung/Makefile > index 7b4c9f6f34f54fd731886d97a615fe1aa97ba9a0..80d4f89b33a9558b68c9083da675c70ec3d05f19 100644 > --- a/drivers/firmware/samsung/Makefile > +++ b/drivers/firmware/samsung/Makefile > @@ -1,4 +1,6 @@ > # SPDX-License-Identifier: GPL-2.0-only > > -acpm-protocol-objs := exynos-acpm.o exynos-acpm-pmic.o > +acpm-protocol-objs := exynos-acpm.o > +acpm-protocol-objs += exynos-acpm-pmic.o > +acpm-protocol-objs += exynos-acpm-dvfs.o > obj-$(CONFIG_EXYNOS_ACPM_PROTOCOL) += acpm-protocol.o > diff --git a/drivers/firmware/samsung/exynos-acpm-dvfs.c b/drivers/firmware/samsung/exynos-acpm-dvfs.c > new file mode 100644 > index 0000000000000000000000000000000000000000..ee457c1a3de2ff2e4395d9fc3ff4c13294473b2d > --- /dev/null > +++ b/drivers/firmware/samsung/exynos-acpm-dvfs.c > @@ -0,0 +1,85 @@ > +// SPDX-License-Identifier: GPL-2.0-only > +/* > + * Copyright 2020 Samsung Electronics Co., Ltd. > + * Copyright 2020 Google LLC. > + * Copyright 2025 Linaro Ltd. > + */ > + > +#include > +#include > +#include > +#include > +#include > + > +#include "exynos-acpm.h" > +#include "exynos-acpm-dvfs.h" > + > +#define ACPM_DVFS_ID GENMASK(11, 0) > +#define ACPM_DVFS_REQ_TYPE GENMASK(15, 0) > + > +enum exynos_acpm_dvfs_func { > + ACPM_DVFS_FREQ_REQ, > + ACPM_DVFS_FREQ_GET, > +}; These are actual values for hardware/firmware? If so, please use rather defines. Rest looks good. Best regards, Krzysztof