Message ID | 20240723131832.1171036-2-andrei.stefanescu@oss.nxp.com |
---|---|
State | New |
Headers | show
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Tue, 23 Jul 2024 13:19:54 +0000 From: Andrei Stefanescu <andrei.stefanescu@oss.nxp.com> To: Linus Walleij <linus.walleij@linaro.org>, Dong Aisheng <aisheng.dong@nxp.com>, Fabio Estevam <festevam@gmail.com>, Shawn Guo <shawnguo@kernel.org>, Jacky Bai <ping.bai@nxp.com>, Pengutronix Kernel Team <kernel@pengutronix.de>, Chester Lin <chester62515@gmail.com>, Matthias Brugger <mbrugger@suse.com>, Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com> Cc: linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, NXP S32 Linux Team <s32@nxp.com>, Andrei Stefanescu <andrei.stefanescu@oss.nxp.com>, Florin Buica <florin.buica@nxp.com> Subject: [PATCH 1/3] pinctrl: s32cc: enable the input buffer for a GPIO Date: Tue, 23 Jul 2024 16:18:30 +0300 Message-ID: <20240723131832.1171036-2-andrei.stefanescu@oss.nxp.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240723131832.1171036-1-andrei.stefanescu@oss.nxp.com> References: <20240723131832.1171036-1-andrei.stefanescu@oss.nxp.com> Content-Type: text/plain; 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add small improvements to the S32G pinctrl driver
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expand
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diff --git a/drivers/pinctrl/nxp/pinctrl-s32cc.c b/drivers/pinctrl/nxp/pinctrl-s32cc.c index f0cad2c501f7..1f58772c472e 100644 --- a/drivers/pinctrl/nxp/pinctrl-s32cc.c +++ b/drivers/pinctrl/nxp/pinctrl-s32cc.c @@ -2,7 +2,7 @@ /* * Core driver for the S32 CC (Common Chassis) pin controller * - * Copyright 2017-2022 NXP + * Copyright 2017-2022,2024 NXP * Copyright (C) 2022 SUSE LLC * Copyright 2015-2016 Freescale Semiconductor, Inc. */ @@ -436,16 +436,15 @@ static int s32_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, unsigned int offset, bool input) { - unsigned int config; + /* Always enable IBE for GPIOs. This allows us to read the + * actual line value and compare it with the one set. + */ + unsigned int config = S32_MSCR_IBE; unsigned int mask = S32_MSCR_IBE | S32_MSCR_OBE; - if (input) { - /* Disable output buffer and enable input buffer */ - config = S32_MSCR_IBE; - } else { - /* Disable input buffer and enable output buffer */ - config = S32_MSCR_OBE; - } + /* Enable output buffer */ + if (!input) + config |= S32_MSCR_OBE; return s32_regmap_update(pctldev, offset, mask, config); }