add NXP LINFlexD UART clock support for S32G2/S32G3
From: | Ciprian Costea <ciprianmarian.costea-AT-oss.nxp.com> | |
To: | Greg Kroah-Hartman <gregkh-AT-linuxfoundation.org>, Jiri Slaby <jirislaby-AT-kernel.org>, Rob Herring <robh-AT-kernel.org>, Krzysztof Kozlowski <krzk+dt-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>, Chester Lin <chester62515-AT-gmail.com> | |
Subject: | [PATCH v5 0/2] add NXP LINFlexD UART clock support for S32G2/S32G3 | |
Date: | Mon, 18 Nov 2024 17:44:46 +0200 | |
Message-ID: | <20241118154449.3895692-1-ciprianmarian.costea@oss.nxp.com> | |
Cc: | linux-kernel-AT-vger.kernel.org, linux-serial-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, imx-AT-lists.linux.dev, NXP S32 Linux <s32-AT-nxp.com>, Christophe Lizzi <clizzi-AT-redhat.com>, Alberto Ruiz <aruizrui-AT-redhat.com>, Enric Balletbo <eballetb-AT-redhat.com>, Ciprian Marian Costea <ciprianmarian.costea-AT-oss.nxp.com> | |
Archive-link: | Article |
From: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com> LINFlexD driver was working on S32 based boards without clock management because the downstream bootloaders (TF-A [1] and U-Boot [2]) were performing the LINFlexD clock management. LINFlexD driver from Linux Kernel should manage its clocks independently and not rely on a previous bootloader configuration. [1] https://github.com/nxp-auto-linux/arm-trusted-firmware [2] https://github.com/nxp-auto-linux/u-boot Changes in V5: - Use 'devm_add_action_or_reset' to disable LINFlexD clocks if errors occur on the probe path. Changes in V4: - Switched clock management to 'clk bulk' API usage - Added more context for this patchset Changes in V3: - Fixed an error reported by 'dt_bindings_check' Changes in V2: - Updated bindings by adding more information related to required LINFlexD clocks Ciprian Marian Costea (2): dt-bindings: serial: fsl-linflexuart: add clock definitions serial: fsl_linflexuart: add clock management .../bindings/serial/fsl,s32-linflexuart.yaml | 16 ++++ drivers/tty/serial/fsl_linflexuart.c | 95 ++++++++++++++++--- 2 files changed, 97 insertions(+), 14 deletions(-) -- 2.45.2