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[139.178.88.99]) by mx.google.com with ESMTPS id h17-20020a633851000000b005dbd5035dcdsi760965pgn.192.2024.02.12.13.07.41 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Feb 2024 13:07:41 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-62364-ouuuleilei=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=renesas.com dmarc=pass fromdomain=renesas.com); spf=pass (google.com: domain of linux-kernel+bounces-62364-ouuuleilei=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) smtp.mailfrom="linux-kernel+bounces-62364-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=renesas.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id A6346284C6F for ; Mon, 12 Feb 2024 21:07:41 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 0556A4CE05; Mon, 12 Feb 2024 21:07:13 +0000 (UTC) Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id C3D184C62B; Mon, 12 Feb 2024 21:07:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772031; cv=none; b=gPVKdB8DvCRXBCiUyTWtShRicKoDnl4R3DDus6rjGA7hWMr4sSrsHFHzPxlj6omE5yjGRw8FcAhOecHdRC+3kKvOQ+ALs2sNx+onqZ9/zvw7u+Xm8Cg3/IOXRfj/yBdK/e/Bx4GDlY3d8SUNVZKHhaQ646BAsprznMbzMyW/85Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772031; c=relaxed/simple; bh=yyEs1wlMfuEt7mcyves4zwKtI0gjMdG+He7OSOYmTeY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=o0x9ixlHqxtwlPcKskZCCDIhr1gc1lr2tVQGI1fEeDq0jwWR1A8Gj0R2YL00QUsT7PA+R62SLgWkNJWu+WyPqskil8EOMQ2/UJ0Gh04yqbBgHQlaPCBuAscViBOrBjF1QpEHpFcSnXydqBdNUJGx511umk1s/zT9sFxQrzavJ0Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-IronPort-AV: E=Sophos;i="6.06,155,1705330800"; d="scan'208";a="197593487" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 13 Feb 2024 06:07:07 +0900 Received: from mulinux.home (unknown [10.226.93.37]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 51FDA4006DEF; Tue, 13 Feb 2024 06:07:03 +0900 (JST) From: Fabrizio Castro To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven Cc: Biju Das , Magnus Damm , linux-pwm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Fabrizio Castro , Krzysztof Kozlowski Subject: [PATCH v7 1/4] dt-bindings: pwm: Add RZ/V2M PWM binding Date: Mon, 12 Feb 2024 21:06:49 +0000 Message-Id: <20240212210652.368680-2-fabrizio.castro.jz@renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> References: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790728797686326375 X-GMAIL-MSGID: 1790728797686326375 From: Biju Das Add device tree bindings for the RZ/V2{M, MA} PWM Timer (PWM). Signed-off-by: Biju Das Reviewed-by: Krzysztof Kozlowski Reviewed-by: Geert Uytterhoeven --- v6->v7: * No change v5->v6: * No change v4->v5: * No change v3->v4: * No change v2->v3: * Added Rb tag from Geert. v1->v2: * Added Rb tag from Krzysztof and the keep the Rb tag as the below * changes are trivial * Updated the description for APB clock * Added resets required property * Updated the example with resets property .../bindings/pwm/renesas,rzv2m-pwm.yaml | 90 +++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/renesas,rzv2m-pwm.yaml diff --git a/Documentation/devicetree/bindings/pwm/renesas,rzv2m-pwm.yaml b/Documentation/devicetree/bindings/pwm/renesas,rzv2m-pwm.yaml new file mode 100644 index 000000000000..ddeed7550923 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/renesas,rzv2m-pwm.yaml @@ -0,0 +1,90 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/pwm/renesas,rzv2m-pwm.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/V2{M, MA} PWM Timer (PWM) + +maintainers: + - Biju Das + +description: | + The RZ/V2{M, MA} PWM Timer (PWM) composed of 16 channels. It supports the + following functions + * The PWM has 24-bit counters which operate at PWM_CLK (48 MHz). + * The frequency division ratio for internal counter operation is selectable + as PWM_CLK divided by 1, 16, 256, or 2048. + * The period as well as the duty cycle is adjustable. + * The low-level and high-level order of the PWM signals can be inverted. + * The duty cycle of the PWM signal is selectable in the range from 0 to 100%. + * The minimum resolution is 20.83 ns. + * Three interrupt sources: Rising and falling edges of the PWM signal and + clearing of the counter + * Counter operation and the bus interface are asynchronous and both can + operate independently of the magnitude relationship of the respective + clock periods. + +properties: + compatible: + items: + - enum: + - renesas,r9a09g011-pwm # RZ/V2M + - renesas,r9a09g055-pwm # RZ/V2MA + - const: renesas,rzv2m-pwm + + reg: + maxItems: 1 + + '#pwm-cells': + const: 2 + + interrupts: + maxItems: 1 + + clocks: + items: + - description: APB clock + - description: PWM clock + + clock-names: + items: + - const: apb + - const: pwm + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - power-domains + - resets + +allOf: + - $ref: pwm.yaml# + +additionalProperties: false + +examples: + - | + #include + #include + + pwm8: pwm@a4010400 { + compatible = "renesas,r9a09g011-pwm", "renesas,rzv2m-pwm"; + reg = <0xa4010400 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM8_CLK>; + clock-names = "apb", "pwm"; + power-domains = <&cpg>; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + #pwm-cells = <2>; + }; From patchwork Mon Feb 12 21:06:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Fabrizio Castro X-Patchwork-Id: 200036 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:bc8a:b0:106:860b:bbdd with SMTP id dn10csp168736dyb; Mon, 12 Feb 2024 13:08:15 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCVgiku3ROV80y7eKC8vDJo5s36LfFhmgHEB6QD4xwwm5QYGB/IYP4fX0ZOlTz8V/BpXYHQ8GrOUKuUVAUgmr9iixqx5OA== X-Google-Smtp-Source: AGHT+IGLH0e801ppn3rXX9WEC4lcoPEpYKS/RrA322Kj/iQGpJ7IzG+fyRa4b4SxpqSzgPwjttdI X-Received: by 2002:a0c:f506:0:b0:68c:c611:7693 with SMTP id j6-20020a0cf506000000b0068cc6117693mr6009953qvm.44.1707772094821; Mon, 12 Feb 2024 13:08:14 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1707772094; cv=pass; d=google.com; s=arc-20160816; b=Ma0CkFg0GKMUTHCHHiD67CprsLoi7BVRHr6dDpB8e4fm664aVl9lizvUDtZyF5Wxu8 bjAHVi5elo2OLIt6jnfp4ypX5CwGra/8jYbXF/RLINHTD3EiuJMvvd7M/qk7y+31/A12 yzirpt6CzBnxQd6kHe3unaKrJH4fD4ycHKEcPeHB5jvM3thfu7gpmyNEunDmFdTaaQB0 xVxuLplLmFDstY8nQ56NNfh/3KjSsZVTH6sAf90d0lF0RW+HVuRL66ybFG/sihX15jzx WoSnpTlCl1JE2IJqLOPoNqKvDHlwqaQPO3RXIjOO17LALQpULDLgUoED41/+ZAfQUwqd YYpA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from; bh=JPPj+Htt+tHMRvh9skvwG8eMhQb/eSCMMtrAjw73WHc=; fh=GN+S/2mr4u1f7sQ43Z8lVF3ksgOvBA4ClJ4HozbF124=; b=d6rfLNyStGMxExTv+nu1X/g2f7CWE+WIBawpz+UitKU6RsBLCwZEBDYHXU8S9NtwfW DzVf3zXHrIMLMZUvTxetyWpYXdsJnMFieLlj9Ha5UdQN641FbUL2bKsPm5WyY/9EL5V8 297IKtMLHizimVog/cWL/uI8i6XVr0o5UBAVxepB/raDai2iAxnBjU2H0ma3VrhCBTi7 IKx6CVpaaKWjIwmbUFFfdb5D9gs3Yhn3THaNDHLc5WLj/NpwA6GP4ZEnygVVCqKThITs cinoxR/ocf27cZPT81muT5hmstSHltuvSRCjBXQKbBqBkVqWzCBBv4TMRsu2EyIUhLXZ eMag==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; arc=pass (i=1 spf=pass spfdomain=renesas.com dmarc=pass fromdomain=renesas.com); spf=pass (google.com: domain of linux-kernel+bounces-62365-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-62365-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=renesas.com X-Forwarded-Encrypted: i=2; AJvYcCW2+BDqxh7K6w8xx3l3ixmCkP6ihH5B0gk1d/QlbxPuKGsNw+x4wEdg9hgnhl8VExnMO4SHHupUsv8kPYg5TdyHVWNdtg== Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. [147.75.199.223]) by mx.google.com with ESMTPS id eo9-20020ad45949000000b0068d14cebf97si1317174qvb.291.2024.02.12.13.08.14 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Feb 2024 13:08:14 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-62365-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=renesas.com dmarc=pass fromdomain=renesas.com); spf=pass (google.com: domain of linux-kernel+bounces-62365-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-62365-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=renesas.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 8C4E61C22154 for ; Mon, 12 Feb 2024 21:08:14 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 50D5B4D9E4; Mon, 12 Feb 2024 21:07:19 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 16F394CB20; Mon, 12 Feb 2024 21:07:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772034; cv=none; b=l+woSygxJtLRK+FvG5F2LrMjuxzXj+srFRQkRd17wT7XjuBtE2Cb4YHgsm2HwYsd4s8FBwzpByUfW0hogQlxYt4qNDY2aUd4mzOA2EgIDIlYYtk2k4WXDkWYFKtZTdeymTPA2h7P1TFOegGrZ7J/nrHIjURw0wSFWksDLOgXd+c= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772034; c=relaxed/simple; bh=9EyJtPzX00IeJiPOIxMIt+b8mY68lQugVj2umFIQDxM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=sdrtemmX53nKjz9jR9xm5tIHKlmt+u5rya6KYeTZzGybpNT0GYjzNR4XIXEY82DD+ketNoYPTQD75zs9i7KtCPTMkjMi4lO3mzflOBTPU9KhzpO9sJO3LWmTKTVzSS8sKCJyMPK0epmTqaej8iH/wjsfy6esVBjo3d9rqeET6Hs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-IronPort-AV: E=Sophos;i="6.06,155,1705330800"; d="scan'208";a="193681632" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 13 Feb 2024 06:07:10 +0900 Received: from mulinux.home (unknown [10.226.93.37]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id EE8244006DEF; Tue, 13 Feb 2024 06:07:07 +0900 (JST) From: Fabrizio Castro To: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Philipp Zabel , Geert Uytterhoeven Cc: Biju Das , Magnus Damm , linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Fabrizio Castro Subject: [PATCH v7 2/4] pwm: Add support for RZ/V2M PWM driver Date: Mon, 12 Feb 2024 21:06:50 +0000 Message-Id: <20240212210652.368680-3-fabrizio.castro.jz@renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> References: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790728832070659585 X-GMAIL-MSGID: 1790728832070659585 From: Biju Das The RZ/V2{M, MA} PWM Timer supports the following functions: * The PWM has 24-bit counters which operate at PWM_CLK (48 MHz). * The frequency division ratio for internal counter operation is selectable as PWM_CLK divided by 1, 16, 256, or 2048. * The period as well as the duty cycle is adjustable. * The low-level and high-level order of the PWM signals can be inverted. * The duty cycle of the PWM signal is selectable in the range from 0 to 100%. * The minimum resolution is 20.83 ns. * Three interrupt sources: Rising and falling edges of the PWM signal and clearing of the counter * Counter operation and the bus interface are asynchronous and both can operate independently of the magnitude relationship of the respective clock periods. Signed-off-by: Biju Das Signed-off-by: Fabrizio Castro --- v6->v7: * Addressed the build issue reported by the kernel test robot. * Added include math64.h. * Reworked rzv2m_pwm_mul_u64_u64_div_u64_roundup to make use of div64_u64 and to get rid of % while keeping the same formula. * Added rzv2m_pwm_mul_u64_u64_div_u64_rounddown. * Replaced / with div64_u64 wherever necessary. v5->v6: * Added Fab's Signed-off-by. * Updated copyright year to 2024. * Added include of limits.h. * Added variable max_period to rzv2m_pwm_chip. * Simplified the calculations by calculating max_period during probe, based on the numerical limits of the formula and the u64 data type. * Added rzv2m_pwm_mul_u64_u64_div_u64_roundup. * Added rzv2m_pwm_prescale_to_shift to fix the calculation of the frequency divider. * Improved the calculations and the variable names of rzv2m_pwm_get_state. * Improved the calculations of rzv2m_pwm_config. * Removed .owner from rzv2m_pwm_ops. * Improved rzv2m_pwm_pm_runtime_resume and renamed its err variable to ret. * Removed of_match_ptr. * Added Fab as module author. v4->v5: * Sorted KConfig file * Sorted Make file * Updated copyright header 2022->2023. * Updated limitation section. * Replaced the variable chip->rzv2m_pwm in rzv2m_pwm_wait_delay() * Replaced polarity logic as per HW manual dutycycle = Ton/Ton+Toff, so eventhough native polarity is inverted from period point of view it is correct. * Added logic for supporting 0% , 100% and remaining duty cycle. * On config() replaced pm_runtime_resume_and_get()->pm_runtime_get_sync() * Counter is stopped while updating period/polarity to avoid glitches. * Added error check for clk_prepare_enable() * Introduced is_ch_enabled variable to cache channel enable status. * clk_get_rate is called after enabling the clock and clk_rate_exclusive_get() * Added comment for delay * Replaced 1000000000UL->NSEC_PER_SEC. * Improved error handling in probe(). v3->v4: * Documented the hardware properties in "Limitations" section * Dropped the macros F2CYCLE_NSEC, U24_MASK and U24_MAX. * Added RZV2M_PWMCYC_PERIOD macro for U24_MAX * Dropped rzv2m_pwm_freq_div variable and started using 1 << (4 * i) for calculating divider as it is power of 16. * Reordered the functions to have rzv2m_pwm_config() directly before rzv2m_pwm_apply(). * Improved the logic for calculating period and duty cycle in config() * Merged multiple RZV2M_PWMCTR register writes to a single write in * config() * replaced pwm_is_enabled()->pwm->state.enabled * Avoided assigning bit value as enum pwm_polarity instead used enum * constant. * Fixed various issues in probe error path. * Updated the logic for PWM cycle setting register * A 100% duty cycle is only possible with PWMLOW > PWMCYC. So restricting PWMCYC values < 0xffffff * The native polarity of the hardware is inverted (i.e. it starts with the low part). So switched the inversion bit handling. v2->v3: * Added return code for rzv2m_pwm_get_state() * Added comment in rzv2m_pwm_reset_assert_pm_disable() v1->v2: * Replaced devm_reset_control_get_optional_shared->devm_reset_control_get_shared drivers/pwm/Kconfig | 11 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-rzv2m.c | 480 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 492 insertions(+) create mode 100644 drivers/pwm/pwm-rzv2m.c diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index 4b956d661755..55d46e6183a2 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -524,6 +524,17 @@ config PWM_RZ_MTU3 To compile this driver as a module, choose M here: the module will be called pwm-rz-mtu3. +config PWM_RZV2M + tristate "Renesas RZ/V2M PWM support" + depends on ARCH_R9A09G011 || COMPILE_TEST + depends on HAS_IOMEM + help + This driver exposes the PWM controller found in Renesas + RZ/V2M like chips through the PWM API. + + To compile this driver as a module, choose M here: the module + will be called pwm-rzv2m. + config PWM_SAMSUNG tristate "Samsung PWM support" depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile index c5ec9e168ee7..cf5a4a1c3b1a 100644 --- a/drivers/pwm/Makefile +++ b/drivers/pwm/Makefile @@ -48,6 +48,7 @@ obj-$(CONFIG_PWM_RCAR) += pwm-rcar.o obj-$(CONFIG_PWM_RENESAS_TPU) += pwm-renesas-tpu.o obj-$(CONFIG_PWM_ROCKCHIP) += pwm-rockchip.o obj-$(CONFIG_PWM_RZ_MTU3) += pwm-rz-mtu3.o +obj-$(CONFIG_PWM_RZV2M) += pwm-rzv2m.o obj-$(CONFIG_PWM_SAMSUNG) += pwm-samsung.o obj-$(CONFIG_PWM_SIFIVE) += pwm-sifive.o obj-$(CONFIG_PWM_SL28CPLD) += pwm-sl28cpld.o diff --git a/drivers/pwm/pwm-rzv2m.c b/drivers/pwm/pwm-rzv2m.c new file mode 100644 index 000000000000..eb9062293590 --- /dev/null +++ b/drivers/pwm/pwm-rzv2m.c @@ -0,0 +1,480 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Renesas RZ/V2M PWM Timer (PWM) driver + * + * Copyright (C) 2024 Renesas Electronics Corporation + * + * Hardware manual for this IP can be found here + * https://www.renesas.com/in/en/document/mah/rzv2m-users-manual-hardware?language=en + * + * Limitations: + * - Changes to the duty cycle configuration get effective only after the next + * period end. + * - The duty cycle can be changed only by modifying the PWMLOW register + *   value and changing the pulse width at low level. The duty cycle becomes + *   0% for the low width when the value of the PWMLOW register is 0x0h + *   and 100% for the low width when the value of the PWMLOW > PWMCYC. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define RZV2M_PWMCTR 0x0 +#define RZV2M_PWMCYC 0x4 +#define RZV2M_PWMLOW 0x8 +#define RZV2M_PWMCNT 0xc + +#define RZV2M_PWMCTR_PWMPS GENMASK(17, 16) +#define RZV2M_PWMCTR_PWMHL BIT(3) +#define RZV2M_PWMCTR_PWMTM BIT(2) +#define RZV2M_PWMCTR_PWME BIT(1) + +#define RZV2M_PWMCYC_PERIOD GENMASK(23, 0) +#define RZV2M_PWMLOW_PERIOD GENMASK(23, 0) + +struct rzv2m_pwm_chip { + u64 max_period; + struct pwm_chip chip; + void __iomem *mmio; + struct reset_control *rstc; + struct clk *apb_clk; + struct clk *pwm_clk; + unsigned long rate; + unsigned long delay; + unsigned long pwm_cyc; + enum pwm_polarity polarity; + bool is_ch_enabled; +}; + +static inline u64 rzv2m_pwm_mul_u64_u64_div_u64_roundup(u64 a, u64 b, u64 c) +{ + u64 ab = a * b; + u64 d = div64_u64(ab, c); + u64 e = d * c; + + return d + ((ab - e) ? 1 : 0); +} + +static inline u64 rzv2m_pwm_mul_u64_u64_div_u64_rounddown(u64 a, u64 b, u64 c) +{ + return div64_u64(a * b, c); +} + +static inline struct rzv2m_pwm_chip *to_rzv2m_pwm_chip(struct pwm_chip *chip) +{ + return container_of(chip, struct rzv2m_pwm_chip, chip); +} + +static void rzv2m_pwm_wait_delay(struct rzv2m_pwm_chip *rzv2m_pwm) +{ + /* delay timer when change the setting register */ + ndelay(rzv2m_pwm->delay); +} + +static void rzv2m_pwm_write(struct rzv2m_pwm_chip *rzv2m_pwm, u32 reg, u32 data) +{ + writel(data, rzv2m_pwm->mmio + reg); +} + +static u32 rzv2m_pwm_read(struct rzv2m_pwm_chip *rzv2m_pwm, u32 reg) +{ + return readl(rzv2m_pwm->mmio + reg); +} + +static void rzv2m_pwm_modify(struct rzv2m_pwm_chip *rzv2m_pwm, u32 reg, u32 clr, + u32 set) +{ + rzv2m_pwm_write(rzv2m_pwm, reg, + (rzv2m_pwm_read(rzv2m_pwm, reg) & ~clr) | set); +} + +static u8 rzv2m_pwm_calculate_prescale(struct rzv2m_pwm_chip *rzv2m_pwm, + u64 period_cycles) +{ + u32 prescaled_period_cycles; + u8 prescale; + + prescaled_period_cycles = period_cycles >> 24; + if (prescaled_period_cycles >= 256) + prescale = 3; + else + prescale = (fls(prescaled_period_cycles) + 3) / 4; + + return prescale; +} + +static inline int rzv2m_pwm_prescale_to_shift(u8 prescale) +{ + return prescale == 3 ? 11 : prescale * 4; +} + +static int rzv2m_pwm_enable(struct rzv2m_pwm_chip *rzv2m_pwm) +{ + int rc; + + rc = pm_runtime_resume_and_get(rzv2m_pwm->chip.dev); + if (rc) + return rc; + + rzv2m_pwm_modify(rzv2m_pwm, RZV2M_PWMCTR, RZV2M_PWMCTR_PWME, + RZV2M_PWMCTR_PWME); + rzv2m_pwm_wait_delay(rzv2m_pwm); + rzv2m_pwm->is_ch_enabled = true; + + return 0; +} + +static void rzv2m_pwm_disable(struct rzv2m_pwm_chip *rzv2m_pwm) +{ + rzv2m_pwm_modify(rzv2m_pwm, RZV2M_PWMCTR, RZV2M_PWMCTR_PWME, 0); + rzv2m_pwm_wait_delay(rzv2m_pwm); + pm_runtime_put_sync(rzv2m_pwm->chip.dev); + rzv2m_pwm->is_ch_enabled = false; +} + +static int rzv2m_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm, + struct pwm_state *state) +{ + struct rzv2m_pwm_chip *rzv2m_pwm = to_rzv2m_pwm_chip(chip); + u16 frequency_divisor; + u32 ctr, cyc, low; + u8 prescale; + + pm_runtime_get_sync(chip->dev); + ctr = rzv2m_pwm_read(rzv2m_pwm, RZV2M_PWMCTR); + state->enabled = FIELD_GET(RZV2M_PWMCTR_PWME, ctr); + state->polarity = FIELD_GET(RZV2M_PWMCTR_PWMHL, ctr) ? + PWM_POLARITY_INVERSED : PWM_POLARITY_NORMAL; + prescale = FIELD_GET(RZV2M_PWMCTR_PWMPS, ctr); + frequency_divisor = 1 << rzv2m_pwm_prescale_to_shift(prescale); + + cyc = rzv2m_pwm_read(rzv2m_pwm, RZV2M_PWMCYC); + state->period = rzv2m_pwm_mul_u64_u64_div_u64_roundup(cyc + 1, + NSEC_PER_SEC * frequency_divisor, + rzv2m_pwm->rate); + + low = rzv2m_pwm_read(rzv2m_pwm, RZV2M_PWMLOW); + state->duty_cycle = rzv2m_pwm_mul_u64_u64_div_u64_roundup(cyc + 1 - low, + NSEC_PER_SEC * frequency_divisor, + rzv2m_pwm->rate); + + return pm_runtime_put(chip->dev); +} + +static int rzv2m_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + struct rzv2m_pwm_chip *rzv2m_pwm = to_rzv2m_pwm_chip(chip); + u64 period = state->period, duty_cycle = state->duty_cycle; + u16 frequency_divisor; + u64 pwm_cyc, pwm_low; + u8 prescale; + u32 pwm_ctr; + + /* + * Clamp period and duty cycle to their maximum values for our current + * configuration rather than letting our calculations overflow. + */ + if (period > rzv2m_pwm->max_period) { + period = rzv2m_pwm->max_period; + if (duty_cycle > rzv2m_pwm->max_period) + duty_cycle = period; + } + + /* + * Formula for calculating PWM Cycle Setting Register: + * PWM cycle = (PWM period(ns) / (PWM_CLK period(ns) × Div ratio)) - 1 + */ + pwm_cyc = rzv2m_pwm_mul_u64_u64_div_u64_rounddown(period, + rzv2m_pwm->rate, + NSEC_PER_SEC); + pwm_cyc = pwm_cyc ? pwm_cyc : 1; + + prescale = rzv2m_pwm_calculate_prescale(rzv2m_pwm, pwm_cyc - 1); + frequency_divisor = 1 << rzv2m_pwm_prescale_to_shift(prescale); + if (frequency_divisor > 1) { + pwm_cyc = rzv2m_pwm_mul_u64_u64_div_u64_rounddown(period, + rzv2m_pwm->rate, + NSEC_PER_SEC * frequency_divisor); + pwm_cyc = pwm_cyc ? pwm_cyc : 1; + } + + if (pwm_cyc && !FIELD_FIT(RZV2M_PWMCYC_PERIOD, pwm_cyc - 1)) + pwm_cyc = RZV2M_PWMCYC_PERIOD + 1; + + /* + * Formula for calculating PWMLOW register: + * PWMLOW register = PWM cycle * Low pulse width ratio (%) + */ + pwm_low = rzv2m_pwm_mul_u64_u64_div_u64_rounddown(duty_cycle, + rzv2m_pwm->rate, NSEC_PER_SEC * frequency_divisor); + + pwm_low = pwm_cyc - pwm_low; + if (!FIELD_FIT(RZV2M_PWMLOW_PERIOD, pwm_low)) + pwm_low = RZV2M_PWMLOW_PERIOD; + + pwm_cyc--; + + /* + * If the PWM channel is disabled, make sure to turn on the clock + * before writing the register. + */ + if (!pwm->state.enabled) + pm_runtime_get_sync(rzv2m_pwm->chip.dev); + + /* + * To change the setting value of the PWM cycle setting register + * (PWMm_PWMCYC) or polarity, set the PWME bit of the PWM control + * register (PWMm_PWMCTR) to 0b and stop the counter operation. + */ + if (rzv2m_pwm->polarity != state->polarity || rzv2m_pwm->pwm_cyc != pwm_cyc) { + rzv2m_pwm_modify(rzv2m_pwm, RZV2M_PWMCTR, RZV2M_PWMCTR_PWME, 0); + rzv2m_pwm_wait_delay(rzv2m_pwm); + } + + rzv2m_pwm_write(rzv2m_pwm, RZV2M_PWMCYC, pwm_cyc); + rzv2m_pwm_write(rzv2m_pwm, RZV2M_PWMLOW, pwm_low); + + pwm_ctr = FIELD_PREP(RZV2M_PWMCTR_PWMPS, prescale); + if (state->polarity == PWM_POLARITY_INVERSED) + pwm_ctr |= RZV2M_PWMCTR_PWMHL; + + rzv2m_pwm_modify(rzv2m_pwm, RZV2M_PWMCTR, RZV2M_PWMCTR_PWMTM | + RZV2M_PWMCTR_PWMPS | RZV2M_PWMCTR_PWMHL, pwm_ctr); + + if (rzv2m_pwm->polarity != state->polarity || rzv2m_pwm->pwm_cyc != pwm_cyc) { + rzv2m_pwm->polarity = state->polarity; + rzv2m_pwm->pwm_cyc = pwm_cyc; + rzv2m_pwm_modify(rzv2m_pwm, RZV2M_PWMCTR, RZV2M_PWMCTR_PWME, + RZV2M_PWMCTR_PWME); + } + + rzv2m_pwm_wait_delay(rzv2m_pwm); + + /* If the PWM is not enabled, turn the clock off again to save power. */ + if (!pwm->state.enabled) + pm_runtime_put(rzv2m_pwm->chip.dev); + + return 0; +} + +static int rzv2m_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm, + const struct pwm_state *state) +{ + struct rzv2m_pwm_chip *rzv2m_pwm = to_rzv2m_pwm_chip(chip); + bool enabled = pwm->state.enabled; + int ret; + + if (!state->enabled) { + if (enabled) + rzv2m_pwm_disable(rzv2m_pwm); + + return 0; + } + + ret = rzv2m_pwm_config(chip, pwm, state); + if (ret) + return ret; + + if (!enabled) + ret = rzv2m_pwm_enable(rzv2m_pwm); + + return ret; +} + +static const struct pwm_ops rzv2m_pwm_ops = { + .get_state = rzv2m_pwm_get_state, + .apply = rzv2m_pwm_apply, +}; + +static int rzv2m_pwm_pm_runtime_suspend(struct device *dev) +{ + struct rzv2m_pwm_chip *rzv2m_pwm = dev_get_drvdata(dev); + + clk_disable_unprepare(rzv2m_pwm->pwm_clk); + clk_disable_unprepare(rzv2m_pwm->apb_clk); + + return 0; +} + +static int rzv2m_pwm_pm_runtime_resume(struct device *dev) +{ + struct rzv2m_pwm_chip *rzv2m_pwm = dev_get_drvdata(dev); + int ret; + + ret = clk_prepare_enable(rzv2m_pwm->apb_clk); + if (ret) + return ret; + + ret = clk_prepare_enable(rzv2m_pwm->pwm_clk); + if (ret) + clk_disable_unprepare(rzv2m_pwm->apb_clk); + + return ret; +} + +static DEFINE_RUNTIME_DEV_PM_OPS(rzv2m_pwm_pm_ops, + rzv2m_pwm_pm_runtime_suspend, + rzv2m_pwm_pm_runtime_resume, NULL); + +static void rzv2m_pwm_reset_assert_pm_disable(void *data) +{ + struct rzv2m_pwm_chip *rzv2m_pwm = data; + + /* + * The below check is for making balanced PM usage count in probe/remove + * eg: boot loader is turning on PWM and probe increments the PM usage + * count. Before apply, if there is unbind/remove callback we need to + * decrement the PM usage count. + */ + if (rzv2m_pwm->is_ch_enabled) + pm_runtime_put(rzv2m_pwm->chip.dev); + + clk_rate_exclusive_put(rzv2m_pwm->pwm_clk); + clk_rate_exclusive_put(rzv2m_pwm->apb_clk); + pm_runtime_disable(rzv2m_pwm->chip.dev); + pm_runtime_set_suspended(rzv2m_pwm->chip.dev); + reset_control_assert(rzv2m_pwm->rstc); +} + +static int rzv2m_pwm_probe(struct platform_device *pdev) +{ + struct rzv2m_pwm_chip *rzv2m_pwm; + unsigned long apb_clk_rate; + int ret; + + rzv2m_pwm = devm_kzalloc(&pdev->dev, sizeof(*rzv2m_pwm), GFP_KERNEL); + if (!rzv2m_pwm) + return -ENOMEM; + + rzv2m_pwm->mmio = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(rzv2m_pwm->mmio)) + return PTR_ERR(rzv2m_pwm->mmio); + + rzv2m_pwm->apb_clk = devm_clk_get(&pdev->dev, "apb"); + if (IS_ERR(rzv2m_pwm->apb_clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(rzv2m_pwm->apb_clk), + "cannot get apb clock\n"); + + rzv2m_pwm->pwm_clk = devm_clk_get(&pdev->dev, "pwm"); + if (IS_ERR(rzv2m_pwm->pwm_clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(rzv2m_pwm->pwm_clk), + "cannot get pwm clock\n"); + + rzv2m_pwm->rstc = devm_reset_control_get_shared(&pdev->dev, NULL); + if (IS_ERR(rzv2m_pwm->rstc)) + return dev_err_probe(&pdev->dev, PTR_ERR(rzv2m_pwm->rstc), + "get reset failed\n"); + + platform_set_drvdata(pdev, rzv2m_pwm); + ret = reset_control_deassert(rzv2m_pwm->rstc); + if (ret) { + return dev_err_probe(&pdev->dev, ret, + "cannot deassert reset control\n"); + } + + ret = clk_prepare_enable(rzv2m_pwm->apb_clk); + if (ret < 0) + goto err_reset; + + ret = clk_prepare_enable(rzv2m_pwm->pwm_clk); + if (ret < 0) + goto disable_apb_clk; + + clk_rate_exclusive_get(rzv2m_pwm->apb_clk); + clk_rate_exclusive_get(rzv2m_pwm->pwm_clk); + apb_clk_rate = clk_get_rate(rzv2m_pwm->apb_clk); + if (!apb_clk_rate) + goto err_rate_put; + + rzv2m_pwm->rate = clk_get_rate(rzv2m_pwm->pwm_clk); + if (!rzv2m_pwm->rate) + goto err_rate_put; + rzv2m_pwm->max_period = div64_u64(U64_MAX, rzv2m_pwm->rate); + + /* + * The registers other than the PWM interrupt register (PWMINT) are + * always synchronized with PWM_CLK at regular intervals. It takes some + * time (Min: 2 × PCLK + 4 × PWM_CLK to Max: 6 × PCLK + 9 × PWM_CLK) for + * the value set in the register to be reflected in the PWM circuit + * because there is a synchronizer between the register and the PWM + * circuit. + */ + rzv2m_pwm->delay = 6 * DIV_ROUND_UP(NSEC_PER_SEC, apb_clk_rate) + + 9 * DIV_ROUND_UP(NSEC_PER_SEC, rzv2m_pwm->rate); + + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + + /* + * We need to keep the clock on, in case the bootloader has enabled the + * PWM and is running during probe(). + */ + if (!!(rzv2m_pwm_read(rzv2m_pwm, RZV2M_PWMCTR) & RZV2M_PWMCTR_PWME)) { + u32 val; + + pm_runtime_get_sync(&pdev->dev); + rzv2m_pwm->is_ch_enabled = true; + rzv2m_pwm->pwm_cyc = rzv2m_pwm_read(rzv2m_pwm, RZV2M_PWMCYC); + val = rzv2m_pwm_read(rzv2m_pwm, RZV2M_PWMCTR); + rzv2m_pwm->polarity = FIELD_GET(RZV2M_PWMCTR_PWMHL, val) ? + PWM_POLARITY_NORMAL : PWM_POLARITY_INVERSED; + } + + rzv2m_pwm->chip.dev = &pdev->dev; + ret = devm_add_action_or_reset(&pdev->dev, + rzv2m_pwm_reset_assert_pm_disable, + rzv2m_pwm); + if (ret) + return ret; + + rzv2m_pwm->chip.ops = &rzv2m_pwm_ops; + rzv2m_pwm->chip.npwm = 1; + ret = devm_pwmchip_add(&pdev->dev, &rzv2m_pwm->chip); + if (ret) + return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n"); + + pm_runtime_idle(&pdev->dev); + + return 0; + +err_rate_put: + clk_rate_exclusive_put(rzv2m_pwm->pwm_clk); + clk_rate_exclusive_put(rzv2m_pwm->apb_clk); + clk_disable_unprepare(rzv2m_pwm->pwm_clk); +disable_apb_clk: + clk_disable_unprepare(rzv2m_pwm->apb_clk); +err_reset: + reset_control_assert(rzv2m_pwm->rstc); + return ret; +} + +static const struct of_device_id rzv2m_pwm_of_table[] = { + { .compatible = "renesas,rzv2m-pwm", }, + { /* Sentinel */ } +}; +MODULE_DEVICE_TABLE(of, rzv2m_pwm_of_table); + +static struct platform_driver rzv2m_pwm_driver = { + .driver = { + .name = "pwm-rzv2m", + .pm = pm_ptr(&rzv2m_pwm_pm_ops), + .of_match_table = rzv2m_pwm_of_table, + }, + .probe = rzv2m_pwm_probe, +}; +module_platform_driver(rzv2m_pwm_driver); + +MODULE_AUTHOR("Biju Das "); +MODULE_AUTHOR("Fabrizio Castro "); +MODULE_DESCRIPTION("Renesas RZ/V2M PWM Timer Driver"); +MODULE_LICENSE("GPL"); From patchwork Mon Feb 12 21:06:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrizio Castro X-Patchwork-Id: 200035 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:bc8a:b0:106:860b:bbdd with SMTP id dn10csp168710dyb; Mon, 12 Feb 2024 13:08:11 -0800 (PST) X-Google-Smtp-Source: AGHT+IF/LHyNP/K/Rhib5Lsw613hkVIfELd1tXhtQ2j64msAjtCqDpK/twGOGNoteEVmgiVeEqJ/ X-Received: by 2002:a05:6808:291a:b0:3be:9974:b8a6 with SMTP id ev26-20020a056808291a00b003be9974b8a6mr6519038oib.23.1707772090887; Mon, 12 Feb 2024 13:08:10 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1707772090; cv=pass; d=google.com; s=arc-20160816; b=ChBz8DQXiKbgOjsw1FK5vieZzIwNC0bEjjeXvdWT8dAitut2hpAWoF+7HcYSDwPnX+ bwFA+ns+ie4TrYtiKp8ZYIKMsBL1KvJ8ogD+rRNLnsCmHuKhXpHJp8rhmIqZKHKqJlj2 Bp+4jxdo6bZNbvJ5V74HQezwABHzzG9Qd/NQ0jzz4Vk6YnFa5gl3wYTh3Z8c/JjUCsE0 kDZnfgL7nXLipAuQ2jBtFLm6ZiOP3DmwBjfWlnFElW2EzQLTnyyKWIeAVDbqksUmqusZ Mz6lQ3LihK43fjgu9BgWAf2Ti12AKD9OxK/UBZJINtcSnkWCyVga8eWpw6pQxtJPkfqM NlSw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from; bh=e16EaQ0We9Hzf8sLPhJ1or4T111+kb3GOdzH+29yDKA=; fh=ZCkN7ViYJ7j5+BRIsvA5jHdUmi0yHCMgjIhxuFbq5aQ=; b=XnyMJ6MhsagDtflQVx+36GNNESk1dbs0SYcghuNBVejulSaXze+cdNhgrvDkdVrvZr +49hO8lVZRlrpEee0RgErSpu18GdAbKxoqdOQwXs7GFq9tto4dYSm7KmI7Ecke5yt8+2 Gr3TPWvId0H2uedSwf2CuQgJXRHTsVEVEcgHWXTvIhI9/FIhD7SdFy68sZRbl5gc56bV kC3r5CwyDhZmFv1JrK72iCe07yjMdJvojN6mMVBZX7BOljjHI94nLzYDqflBuvTcTRZC PQub91JrymudcL+TL92FU49QGjOl0I+fMAAjkGNez/GJGgIGhWfXAb3cDfPODup/wSIu rphQ==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; arc=pass (i=1 spf=pass spfdomain=renesas.com dmarc=pass fromdomain=renesas.com); spf=pass (google.com: domain of linux-kernel+bounces-62366-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-62366-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=renesas.com X-Forwarded-Encrypted: i=2; AJvYcCX7tS5SkYSVCPgoSjrZjfpP7pLkCnGxXFlYzUMKaINoe6xP2x0NvOEUCopHffUKiMXlhDc2tZdKWTUx9rAFOpEXyX11jg== Received: from ny.mirrors.kernel.org (ny.mirrors.kernel.org. [147.75.199.223]) by mx.google.com with ESMTPS id dw13-20020a05620a600d00b00786fe3cf45csi1604419qkb.291.2024.02.12.13.08.10 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Feb 2024 13:08:10 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-62366-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=renesas.com dmarc=pass fromdomain=renesas.com); spf=pass (google.com: domain of linux-kernel+bounces-62366-ouuuleilei=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-kernel+bounces-62366-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=renesas.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id A828E1C22020 for ; Mon, 12 Feb 2024 21:08:10 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id E3F1C4D5B7; Mon, 12 Feb 2024 21:07:18 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 184504D108; Mon, 12 Feb 2024 21:07:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772037; cv=none; b=GjorCAIP7j793U9DVAlnIy4uLDTpJ2EPzefbKh+kizc4EJ65rvvWLoQAtW0YosBydLeccCxArnHgyOgjU+r6YLml7JLBTWsJV7zrktV5DBYAQh39G4UESTvA/mT5kaiWTzrxqlx8x6jA85SK+hSTWruET4Qb5Siotk06UI6c++E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772037; c=relaxed/simple; bh=y55vh3DS15esvMAirrpi3nAct3mWo9eNfUzm3Crs+RI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=QIztLLLsVl2CbyBuZSgXaDLoqtWH/Fyw2RF9TF9mAqgx6b01YEKR6S6i/wVym1avj9VWAOjRhRIevz6eXygO2qnwKci7eqszH9izret5JaDdZh+UT3V4+clxpWuZ8yA7/bAZ228+rXzu3dyxLERE5VQ2Oenx13N5h/QMYI+Tk3c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-IronPort-AV: E=Sophos;i="6.06,155,1705330800"; d="scan'208";a="193681643" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 13 Feb 2024 06:07:14 +0900 Received: from mulinux.home (unknown [10.226.93.37]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 77D4F4006DEF; Tue, 13 Feb 2024 06:07:11 +0900 (JST) From: Fabrizio Castro To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven Cc: Biju Das , Magnus Damm , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Fabrizio Castro Subject: [PATCH v7 3/4] arm64: dts: renesas: r9a09g011: Add pwm nodes Date: Mon, 12 Feb 2024 21:06:51 +0000 Message-Id: <20240212210652.368680-4-fabrizio.castro.jz@renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> References: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790728827608195149 X-GMAIL-MSGID: 1790728827608195149 From: Biju Das Add device nodes for the pwm timer channels that are not assigned to the ISP. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven --- v6->v7: * No change. v5->v6: * No change. v4->v5: * No change. v3->v4: * No change v2->v3: * Added Rb tag from Geert v1->v2: * Added resets property arch/arm64/boot/dts/renesas/r9a09g011.dtsi | 98 ++++++++++++++++++++++ 1 file changed, 98 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a09g011.dtsi b/arch/arm64/boot/dts/renesas/r9a09g011.dtsi index 50ed66d42a24..bb006772e31e 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g011.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a09g011.dtsi @@ -236,6 +236,104 @@ sys: system-controller@a3f03000 { reg = <0 0xa3f03000 0 0x400>; }; + pwm8: pwm@a4010400 { + compatible = "renesas,r9a09g011-pwm", + "renesas,rzv2m-pwm"; + reg = <0 0xa4010400 0 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM8_CLK>; + clock-names = "apb", "pwm"; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + power-domains = <&cpg>; + #pwm-cells = <2>; + status = "disabled"; + }; + + pwm9: pwm@a4010480 { + compatible = "renesas,r9a09g011-pwm", + "renesas,rzv2m-pwm"; + reg = <0 0xa4010480 0 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM9_CLK>; + clock-names = "apb", "pwm"; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + power-domains = <&cpg>; + #pwm-cells = <2>; + status = "disabled"; + }; + + pwm10: pwm@a4010500 { + compatible = "renesas,r9a09g011-pwm", + "renesas,rzv2m-pwm"; + reg = <0 0xa4010500 0 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM10_CLK>; + clock-names = "apb", "pwm"; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + power-domains = <&cpg>; + #pwm-cells = <2>; + status = "disabled"; + }; + + pwm11: pwm@a4010580 { + compatible = "renesas,r9a09g011-pwm", + "renesas,rzv2m-pwm"; + reg = <0 0xa4010580 0 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM11_CLK>; + clock-names = "apb", "pwm"; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + power-domains = <&cpg>; + #pwm-cells = <2>; + status = "disabled"; + }; + + pwm12: pwm@a4010600 { + compatible = "renesas,r9a09g011-pwm", + "renesas,rzv2m-pwm"; + reg = <0 0xa4010600 0 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM12_CLK>; + clock-names = "apb", "pwm"; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + power-domains = <&cpg>; + #pwm-cells = <2>; + status = "disabled"; + }; + + pwm13: pwm@a4010680 { + compatible = "renesas,r9a09g011-pwm", + "renesas,rzv2m-pwm"; + reg = <0 0xa4010680 0 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM13_CLK>; + clock-names = "apb", "pwm"; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + power-domains = <&cpg>; + #pwm-cells = <2>; + status = "disabled"; + }; + + pwm14: pwm@a4010700 { + compatible = "renesas,r9a09g011-pwm", + "renesas,rzv2m-pwm"; + reg = <0 0xa4010700 0 0x80>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A09G011_CPERI_GRPF_PCLK>, + <&cpg CPG_MOD R9A09G011_PWM14_CLK>; + clock-names = "apb", "pwm"; + resets = <&cpg R9A09G011_PWM_GPF_PRESETN>; + power-domains = <&cpg>; + #pwm-cells = <2>; + status = "disabled"; + }; + csi0: spi@a4020000 { compatible = "renesas,rzv2m-csi"; reg = <0 0xa4020000 0 0x80>; From patchwork Mon Feb 12 21:06:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrizio Castro X-Patchwork-Id: 200037 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7300:bc8a:b0:106:860b:bbdd with SMTP id dn10csp169505dyb; Mon, 12 Feb 2024 13:10:00 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCUGBQmFtO7glPmql3rWsL/xepJ0iyArYbYGSeCpDk45L26/Etqc9V0VaMftm0sx49Ht0GjpBq2Pj4R+2gcLdonIRXVlSw== X-Google-Smtp-Source: AGHT+IHBq/ZxrLCTbdOLUc55kwHwZZeoLWqIpGk1FOX7cMXWhtHiwxQnGOA82+wDEYrH0DI/bUjE X-Received: by 2002:a17:90a:ec0a:b0:297:4f1:8a19 with SMTP id l10-20020a17090aec0a00b0029704f18a19mr4662114pjy.23.1707772200672; 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[2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id b2-20020a17090a6e0200b00290b1bfb082si812375pjk.130.2024.02.12.13.10.00 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Feb 2024 13:10:00 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-62367-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; arc=pass (i=1 spf=pass spfdomain=renesas.com dmarc=pass fromdomain=renesas.com); spf=pass (google.com: domain of linux-kernel+bounces-62367-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-62367-ouuuleilei=gmail.com@vger.kernel.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=renesas.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 5DC50B21EEB for ; Mon, 12 Feb 2024 21:08:32 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 205E54DA02; Mon, 12 Feb 2024 21:07:23 +0000 (UTC) Received: from relmlie5.idc.renesas.com (relmlor1.renesas.com [210.160.252.171]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 6BC384D9E8; Mon, 12 Feb 2024 21:07:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772041; cv=none; b=R4vtUlc0txeBsx2iH7wbw2k4Rhx50O8bcOASV4D30JHY9bkI7maIjDQvifAFsYm2leSbQ/lvlUqc8E0cjX/eODG1/jQZ1PqZqweRjXivIt5ImP6anfwyzrJj2Hzb2NeYFAZWrwri7h16rOVWj5WA4SFdQAZddypwYSA5xncyENs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707772041; c=relaxed/simple; bh=6uO8+5f0HuUGMhLDr4KYd9xN8pPGpxbc7PKeC1VVNfo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=CVKSq44OUglfHevKrkRGVNnT9oyq6R49gnWGYv00KWxXp+C3NpG4K3Ay/7ehUUzYn5EN5yLPyfmcFvGPmxfC7AGN6xfpA0DfuJ845pWamH38skvxPTT2Jho15BN57DUDocmqaTt3Gcy0ggSepksDvkSEfSnEGXI/W/JIRTHszzc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-IronPort-AV: E=Sophos;i="6.06,155,1705330800"; d="scan'208";a="193681651" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 13 Feb 2024 06:07:18 +0900 Received: from mulinux.home (unknown [10.226.93.37]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 439214006DEF; Tue, 13 Feb 2024 06:07:14 +0900 (JST) From: Fabrizio Castro To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven Cc: Biju Das , Magnus Damm , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Fabrizio Castro Subject: [PATCH v7 4/4] arm64: dts: renesas: rzv2m evk: Enable pwm Date: Mon, 12 Feb 2024 21:06:52 +0000 Message-Id: <20240212210652.368680-5-fabrizio.castro.jz@renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> References: <20240212210652.368680-1-fabrizio.castro.jz@renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1790728943283666988 X-GMAIL-MSGID: 1790728943283666988 From: Biju Das Enable pwm{8..14} on RZ/V2M EVK. Signed-off-by: Biju Das Reviewed-by: Geert Uytterhoeven --- v6->v7: * No change. v5->v6: * No change. v4->v5: * No change v3->v4: * No change v2->v3: * Added Rb tag from Geert. v1->v2: * No change .../boot/dts/renesas/r9a09g011-v2mevk2.dts | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a09g011-v2mevk2.dts b/arch/arm64/boot/dts/renesas/r9a09g011-v2mevk2.dts index 39fe3f94991e..6e636ac2d190 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g011-v2mevk2.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g011-v2mevk2.dts @@ -196,6 +196,34 @@ i2c2_pins: i2c2 { ; /* SCL */ }; + pwm8_pins: pwm8 { + pinmux = ; /* PM8 */ + }; + + pwm9_pins: pwm9 { + pinmux = ; /* PM9 */ + }; + + pwm10_pins: pwm10 { + pinmux = ; /* PM10 */ + }; + + pwm11_pins: pwm11 { + pinmux = ; /* PM11 */ + }; + + pwm12_pins: pwm12 { + pinmux = ; /* PM12 */ + }; + + pwm13_pins: pwm13 { + pinmux = ; /* PM13 */ + }; + + pwm14_pins: pwm14 { + pinmux = ; /* PM14 */ + }; + sdhi0_pins: sd0 { data { pinmux = , /* SD0DAT0 */ @@ -251,6 +279,48 @@ &pwc { status = "okay"; }; +&pwm8 { + pinctrl-0 = <&pwm8_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&pwm9 { + pinctrl-0 = <&pwm9_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&pwm10 { + pinctrl-0 = <&pwm10_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&pwm11 { + pinctrl-0 = <&pwm11_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&pwm12 { + pinctrl-0 = <&pwm12_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&pwm13 { + pinctrl-0 = <&pwm13_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&pwm14 { + pinctrl-0 = <&pwm14_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + &sdhi0 { pinctrl-0 = <&sdhi0_pins>; pinctrl-1 = <&sdhi0_pins_uhs>;