From patchwork Wed Oct 2 10:48:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Conor Dooley X-Patchwork-Id: 13819585 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 1B3181EBFEE; Wed, 2 Oct 2024 10:48:35 +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=1727866117; cv=none; b=sKUMPCHzkqyLMIVXKDJ00ucW2QqLNCxcIz5QpjeK9uQnHo0J/Ik63duiyszxCdUG3r7poyS3oIZ+h9CnhcNZPP3HVFO2Ct30UKT2+FFG0S6INq9WYFBznY+CQdjm77bZAj3uEBI79QhCdG29+7Ooq8dYX8paLwtw2zz5hjhHi1M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727866117; c=relaxed/simple; bh=7jVhqVGAjc9ZFGXbZZzkY3dEWfHE6F5nEf5rIqPjM64=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=PLd0t41/n/sLmHIA4MJGht7ESQkNUIyf+G9oQPtICW3LudmvoQA/GEkFLIKCTpEN3K2SehWXa/lF3tk/upsRNSkbmz++m2GLiazs+cU6xPozmb813Y6X8tc0N2pV/1CiZhXigwF4W1VtnvU54rIm2hqQ1qX16uL1k+B5KixSlE8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=E5qfyIJk; 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="E5qfyIJk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2120BC4CEC5; Wed, 2 Oct 2024 10:48:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727866115; bh=7jVhqVGAjc9ZFGXbZZzkY3dEWfHE6F5nEf5rIqPjM64=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=E5qfyIJknPt90hR8jblJ5EMIV13XykjXFwAOzgIGlnyaKdczVFLPP+NWlvI+nBKI0 bQ2SqOBZnjWUqAyWcod0rubjlCU+SXknM0UQX4MW9PAy/axP6kQM04MQX2mfVUV2Wl WS1AjX3gBgmwXRSL04vB1auwim+oSJGkLGK2bya4bJZ6v+5lLLWzzQiBlzq844NFT2 BSX8usk7NJdxkM7JBEN2U1lUmoFJ4T2M5onVTlm6CjDvkhYHp6WJyo29Smzeye0TcY siIoHYAY+PIBz4K5GP9KToLO9WcDejuJerveDcqQrleLuuUQ4yM5GMPB6dD8V1f4Gd HsJKLcwO47LSg== From: Conor Dooley To: linux-kernel@vger.kernel.org Cc: conor@kernel.org, Conor Dooley , Daire McNamara , pierre-henry.moussay@microchip.com, valentina.fernandezalanis@microchip.com, Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Jassi Brar , Lee Jones , Paul Walmsley , Palmer Dabbelt , Albert Ou , Neil Armstrong , Jerome Brunet , Kevin Hilman , Martin Blumenstingl , Philipp Zabel , linux-riscv@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v1 05/11] soc: microchip: add mfd drivers for two syscon regions on PolarFire SoC Date: Wed, 2 Oct 2024 11:48:03 +0100 Message-ID: <20241002-undead-imply-3d240d0cff5e@spud> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241002-private-unequal-33cfa6101338@spud> References: <20241002-private-unequal-33cfa6101338@spud> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=4881; i=conor.dooley@microchip.com; h=from:subject:message-id; bh=P0KwHlFPlXIpFEUesBiUq9EexeIVzEEKS9WSONg93nU=; b=owGbwMvMwCFWscWwfUFT0iXG02pJDGl/VR56xJ27Xrj2vIVW3pTbF++UTTsZ5bDO+XOI6ub9d hpdDRNjO0pZGMQ4GGTFFFkSb/e1SK3/47LDuectzBxWJpAhDFycAjARc1GG/77RUwTSL++K/1L3 5d6/99lOnxQmhvFevZ9te+raResnrtYM/4xOTGrcsiGia/NGoSaO8CVn7yhrLX/qobvCKWpfw5m afdwA X-Developer-Key: i=conor.dooley@microchip.com; a=openpgp; fpr=F9ECA03CF54F12CD01F1655722E2C55B37CF380C From: Conor Dooley The control-scb and mss-top-sysreg regions on PolarFire SoC both fulfill multiple purposes. The former is used for mailbox functions in addition to the temperature & voltage sensor while the latter is used for clocks, resets, interrupt muxing and pinctrl. Signed-off-by: Conor Dooley --- drivers/soc/microchip/Kconfig | 13 ++++++ drivers/soc/microchip/Makefile | 1 + drivers/soc/microchip/mpfs-control-scb.c | 45 +++++++++++++++++++ drivers/soc/microchip/mpfs-mss-top-sysreg.c | 48 +++++++++++++++++++++ 4 files changed, 107 insertions(+) create mode 100644 drivers/soc/microchip/mpfs-control-scb.c create mode 100644 drivers/soc/microchip/mpfs-mss-top-sysreg.c diff --git a/drivers/soc/microchip/Kconfig b/drivers/soc/microchip/Kconfig index 19f4b576f822b..31d188311e05f 100644 --- a/drivers/soc/microchip/Kconfig +++ b/drivers/soc/microchip/Kconfig @@ -9,3 +9,16 @@ config POLARFIRE_SOC_SYS_CTRL module will be called mpfs_system_controller. If unsure, say N. + +config POLARFIRE_SOC_SYSCONS + bool "PolarFire SoC (MPFS) syscon drivers" + default y + depends on ARCH_MICROCHIP + select MFD_CORE + help + These drivers add support for the syscons on PolarFire SoC (MPFS). + Without these drivers core parts of the kernel such as clocks + and resets will not function correctly. + + If unsure, and on a PolarFire SoC, say y. + diff --git a/drivers/soc/microchip/Makefile b/drivers/soc/microchip/Makefile index 14489919fe4b3..1a3a1594b089b 100644 --- a/drivers/soc/microchip/Makefile +++ b/drivers/soc/microchip/Makefile @@ -1 +1,2 @@ obj-$(CONFIG_POLARFIRE_SOC_SYS_CTRL) += mpfs-sys-controller.o +obj-$(CONFIG_POLARFIRE_SOC_SYSCONS) += mpfs-control-scb.o mpfs-mss-top-sysreg.o diff --git a/drivers/soc/microchip/mpfs-control-scb.c b/drivers/soc/microchip/mpfs-control-scb.c new file mode 100644 index 0000000000000..d1a8e79c232e3 --- /dev/null +++ b/drivers/soc/microchip/mpfs-control-scb.c @@ -0,0 +1,45 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include +#include +#include +#include + +static const struct mfd_cell mpfs_control_scb_devs[] = { + { .name = "mpfs-tvs", }, +}; + +static int mpfs_control_scb_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + int ret; + + ret = mfd_add_devices(dev, PLATFORM_DEVID_NONE, mpfs_control_scb_devs, + 1, NULL, 0, NULL); + if (ret) + return ret; + + return 0; +} + +static const struct of_device_id mpfs_control_scb_of_match[] = { + {.compatible = "microchip,mpfs-control-scb", }, + {}, +}; +MODULE_DEVICE_TABLE(of, mpfs_control_scb_of_match); + +static struct platform_driver mpfs_control_scb_driver = { + .driver = { + .name = "mpfs-control-scb", + .of_match_table = mpfs_control_scb_of_match, + }, + .probe = mpfs_control_scb_probe, +}; +module_platform_driver(mpfs_control_scb_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Conor Dooley "); +MODULE_DESCRIPTION("PolarFire SoC control scb driver"); diff --git a/drivers/soc/microchip/mpfs-mss-top-sysreg.c b/drivers/soc/microchip/mpfs-mss-top-sysreg.c new file mode 100644 index 0000000000000..9b2e7b84cdba2 --- /dev/null +++ b/drivers/soc/microchip/mpfs-mss-top-sysreg.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include +#include +#include +#include + +static const struct mfd_cell mpfs_mss_top_sysreg_devs[] = { + { .name = "mpfs-reset", }, +}; + +static int mpfs_mss_top_sysreg_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + int ret; + + ret = mfd_add_devices(dev, PLATFORM_DEVID_NONE, mpfs_mss_top_sysreg_devs, + 1, NULL, 0, NULL); + if (ret) + return ret; + + if (devm_of_platform_populate(dev)) + dev_err(dev, "Error populating children\n"); + + return 0; +} + +static const struct of_device_id mpfs_mss_top_sysreg_of_match[] = { + {.compatible = "microchip,mpfs-mss-top-sysreg", }, + {}, +}; +MODULE_DEVICE_TABLE(of, mpfs_mss_top_sysreg_of_match); + +static struct platform_driver mpfs_mss_top_sysreg_driver = { + .driver = { + .name = "mpfs-mss-top-sysreg", + .of_match_table = mpfs_mss_top_sysreg_of_match, + }, + .probe = mpfs_mss_top_sysreg_probe, +}; +module_platform_driver(mpfs_mss_top_sysreg_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Conor Dooley "); +MODULE_DESCRIPTION("PolarFire SoC mss top sysreg driver");