From patchwork Wed Apr 24 10:28:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kelvin Zhang via B4 Relay X-Patchwork-Id: 13641700 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 E8260C4345F for ; Wed, 24 Apr 2024 10:29:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References: Message-Id:MIME-Version:Subject:Date:From:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=xuS8g8CbOm9r1kKMaNuBQLF/AovBHBy6q+jQZ4gOSFk=; b=L3IKwc+FrmzGZ5 y5L0IbRpejFue3AiCUhQa2MwHX56ilnXCfAdHVbQsAFmEIcCAfc56uw5MimsNsmPANpwiFlfxc+nD APP8Ac0y/YBjHDphDmEFD/t8CBrG0EwuEaLYo7GfpDQsDiScJFinA08U1lGoJxK4vRCdi2xS8LR8H gjmJDgsizWikteY4tLV8ATeQ6oAmrotCg8JuOnjDSvFDE9OHm7pxpfwVUMSQTmj0FApGQ5B/jWHhf /mkjx772isU9URQcdmigi8Ewb42RIA70/f6aM8HHF1yAkiBpUdskYcf686vMpzWoFDQ6oC/M77R80 1OzxTCDLeiTMU5Lh+rbg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rzZsC-00000003hFh-2raT; Wed, 24 Apr 2024 10:29:08 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rzZs8-00000003hBn-1Wc2; Wed, 24 Apr 2024 10:29:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Reply-To:Cc:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Sender:Content-ID:Content-Description; bh=/lpv7brR0RF76hxqPeDFsv+yMIPET6CiXSOh/uaU9JU=; b=GrpoZB4uG8S6dKytlvnU5Ohx/9 tP0e3aW/3NDeqy6tgwC27dR7DDrW3/JgVAoxytYSnLWnd2MXXV4r8ZpqBBgef6eBR9Q5CpjB0lxeO oQLX29RoqhKLYN4dxk6HfAH3geuL94DZPkavfgOdsFib0zcSc4Qm9UncXucXuyk6TRWR+azwOrgBF MOtwdIqb0GNd4CJYf3uWpA74vM9FoTUXfm0/OdH9C0JXy1olnBUXrgkqXIbzKKusUCXD4poIkGLgR lfvGj6mfxTB0dvt6E4mWbNWMg+ELA11gW0kT8QSFEWwrKDdK3agYEcxzVl6MEX/da6OZaiItN41yd JY8jfpzg==; Received: from dfw.source.kernel.org ([139.178.84.217]) by desiato.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rzZs4-0000000EM83-09gG; Wed, 24 Apr 2024 10:29:02 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 6897A619F8; Wed, 24 Apr 2024 10:28:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 10352C32781; Wed, 24 Apr 2024 10:28:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1713954525; bh=8ajJMJwApKqgCf9f89bVvjuzXAt5v7XkRoPUav8YUV4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=YMbrlT3q971srEC/EdzXQzYg9th7O/dE3TBkPX+5C9rd86TwGXVoGLBlzixIqn32q gqOFkCj/BOHOUaIWbP5Bpb4Wb6Wc9C4iJyztdGYGbigDAqNU63SzWRH/IMdfVcrlcd p4fdK0b2XnSJEmO5V5Eg9FKu+OLwbhJiFolk3SfNlTlylYcVcsn68USIYn3mqgzRvv VSotiIsqhReg5aL8SgoZoetk+PRnQWcaYSmaHVr4mjqXssEe6cUuR/A2YeQH3k35F/ jcoHjcduJZlSNl4FAPAYSwpUjJdSqn+u6Tl2BS0B77ZVJlwsO4n7KYujFAQfzf2nx/ VUza5eFYjAORw== 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 E4DE9C10F15; Wed, 24 Apr 2024 10:28:44 +0000 (UTC) From: Kelvin Zhang via B4 Relay Date: Wed, 24 Apr 2024 18:28:34 +0800 Subject: [PATCH v4 1/2] pwm: meson: Add support for Amlogic S4 PWM MIME-Version: 1.0 Message-Id: <20240424-s4-pwm-v4-1-ee22effd40d0@amlogic.com> References: <20240424-s4-pwm-v4-0-ee22effd40d0@amlogic.com> In-Reply-To: <20240424-s4-pwm-v4-0-ee22effd40d0@amlogic.com> To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-pwm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Kelvin Zhang , Junyi Zhao X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1713954523; l=2139; i=kelvin.zhang@amlogic.com; s=20240329; h=from:subject:message-id; bh=gtMEBe84ZprBZCQ2WIxZzSC+jfy6SdQC7eTQHo6OrP0=; b=2QReknnu4j0rhx43sc1H5ezdFAmc2B0Conf7r5ceTUUiA7AhpLj1EGHL8ako++gaojevQyKMp /bUmR33rPpQBpTp6b3G0VADO0q5tb3bJ3U47m/++XxFOOnLyRO0dKc6 X-Developer-Key: i=kelvin.zhang@amlogic.com; a=ed25519; pk=pgnle7HTNvnNTcOoGejvtTC7BJT30HUNXfMHRRXSylI= X-Endpoint-Received: by B4 Relay for kelvin.zhang@amlogic.com/20240329 with auth_id=148 X-Original-From: Kelvin Zhang X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240424_112900_417231_C79F058B X-CRM114-Status: GOOD ( 14.56 ) 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: , Reply-To: kelvin.zhang@amlogic.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Junyi Zhao This patch adds support for Amlogic S4 PWM. Signed-off-by: Junyi Zhao Signed-off-by: Kelvin Zhang --- drivers/pwm/pwm-meson.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c index ea96c5973488..6abc823745e4 100644 --- a/drivers/pwm/pwm-meson.c +++ b/drivers/pwm/pwm-meson.c @@ -462,6 +462,35 @@ static int meson_pwm_init_channels_meson8b_v2(struct pwm_chip *chip) return meson_pwm_init_clocks_meson8b(chip, mux_parent_data); } +static int meson_pwm_init_channels_meson_s4(struct pwm_chip *chip) +{ + int i, ret; + struct device *dev = pwmchip_parent(chip); + struct device_node *np = dev->of_node; + struct meson_pwm *meson = to_meson_pwm(chip); + struct meson_pwm_channel *channel; + + for (i = 0; i < MESON_NUM_PWMS; i++) { + channel = &meson->channels[i]; + channel->clk = of_clk_get(np, i); + if (IS_ERR(channel->clk)) { + ret = PTR_ERR(channel->clk); + dev_err_probe(dev, ret, "Failed to get clk\n"); + goto err; + } + } + + return 0; + +err: + while (--i >= 0) { + channel = &meson->channels[i]; + clk_put(channel->clk); + } + + return ret; +} + static const struct meson_pwm_data pwm_meson8b_data = { .parent_names = { "xtal", NULL, "fclk_div4", "fclk_div3" }, .channels_init = meson_pwm_init_channels_meson8b_legacy, @@ -500,6 +529,10 @@ static const struct meson_pwm_data pwm_meson8_v2_data = { .channels_init = meson_pwm_init_channels_meson8b_v2, }; +static const struct meson_pwm_data pwm_meson_s4_data = { + .channels_init = meson_pwm_init_channels_meson_s4, +}; + static const struct of_device_id meson_pwm_matches[] = { { .compatible = "amlogic,meson8-pwm-v2", @@ -538,6 +571,10 @@ static const struct of_device_id meson_pwm_matches[] = { .compatible = "amlogic,meson-g12a-ao-pwm-cd", .data = &pwm_g12a_ao_cd_data }, + { + .compatible = "amlogic,meson-s4-pwm", + .data = &pwm_meson_s4_data + }, {}, }; MODULE_DEVICE_TABLE(of, meson_pwm_matches);