From patchwork Fri Jan 12 14:26:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lad, Prabhakar" X-Patchwork-Id: 762747 Received: from mail-wm1-f48.google.com (mail-wm1-f48.google.com [209.85.128.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F2DD6BB45; Fri, 12 Jan 2024 14:26:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fIeeUhdV" Received: by mail-wm1-f48.google.com with SMTP id 5b1f17b1804b1-40e68ca8ec8so3034675e9.2; Fri, 12 Jan 2024 06:26:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1705069589; x=1705674389; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=BJ/m+l7GPcHseZYPduukv0ojncUx7hSN3NYiZJ23ScQ=; b=fIeeUhdVgkkuoNwu5T6tdvU/5CnBjHwGprQmm6f7EQ+3kSE+txw+yFHhkS6jqcSseG OpML6+RVAorA9SgsY+TwZK54j3uDW5mQQzdx84KUueakJawvYVfcPuyWQmd4zIUstiND ss57sG3yrSOJRyd9q+iPeTKpl6ExNg76LRHB9CYM8Ia0k+RpjgHXZklYq9aRF+otbbg1 NvKao68LhdVirPmDuWv6btyvqBMe+U0iRkj23c1Ww8deQb28HrwyuwZJ1cbey3fJ8HqK Nfxdh3RtR5ZHFyy8KyuskQqlNRAotDQEOqxZW8WRgY8h3i5yBMvg40vCxO+jpD6Dp3aA NMoA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705069589; x=1705674389; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=BJ/m+l7GPcHseZYPduukv0ojncUx7hSN3NYiZJ23ScQ=; b=dHU5SFiKYjhB3vao3gdjPfuQWuKZBFi7KdArWzc2Uj95vBmNlNtePg1dgBA7WbPCu+ QrO+R85XoWSfHhSRs4DRXJp6C0bKv2vXSf8xaxkrUK0CbpMDRt0tkKzPpcO1ZIKgk1l2 cKK3Zuq3FElzYnoWCRLqNjmk/e7xyN99+bSEpTzBwRX07WsuNe+agC65lws704QhWTJ7 cRLwNBjXpRbS0nJ6oDyGItgtkl8DphJAeL6Tehtr0OZWuuhBDx8/CUol7Km7ZOZFMGsf D6PKVO81XPiwVd25znQGk3YSUNhVTa3Jaun/8LbcVTA5w8yZ8yPiKzuz+xe/zGoBujGF Xlbg== X-Gm-Message-State: AOJu0YxdwSNFBw8jwQ5fiizz+IJjoCe8JAppThnzzESxbv/1qKwd59nB cS9LJrjCBVPeUkLmAj5hrjU= X-Google-Smtp-Source: AGHT+IHo4hdTciokLfarPsuDU0O6Eavyfq3xpkpUuaj+rdJ+//mml5N4EoFvNNsqkKYF0HplzXGuRw== X-Received: by 2002:a05:600c:1c85:b0:40d:8818:8ea5 with SMTP id k5-20020a05600c1c8500b0040d88188ea5mr744249wms.122.1705069588520; Fri, 12 Jan 2024 06:26:28 -0800 (PST) Received: from prasmi.home ([2a00:23c8:2500:a01:494d:c489:3d96:1b15]) by smtp.gmail.com with ESMTPSA id f6-20020a5d4dc6000000b00336a2566aa2sm4021219wru.61.2024.01.12.06.26.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jan 2024 06:26:27 -0800 (PST) From: Prabhakar X-Google-Original-From: Prabhakar To: Geert Uytterhoeven , Magnus Damm , Linus Walleij Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, Prabhakar , Biju Das , Claudiu Beznea , Lad Prabhakar Subject: [PATCH v4 1/4] pinctrl: renesas: rzg2l: Improve code for readability Date: Fri, 12 Jan 2024 14:26:18 +0000 Message-Id: <20240112142621.13525-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240112142621.13525-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20240112142621.13525-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Lad Prabhakar As the RZ/G2L pinctrl driver is extensively utilized by numerous SoCs and has experienced substantial growth, enhance code readability by incorporating FIELD_PREP_CONST/FIELD_GET macros wherever necessary. Signed-off-by: Lad Prabhakar --- drivers/pinctrl/renesas/pinctrl-rzg2l.c | 41 +++++++++++++++---------- 1 file changed, 24 insertions(+), 17 deletions(-) diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index e90d47136889..fee348b80892 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -5,6 +5,7 @@ * Copyright (C) 2021 Renesas Electronics Corporation. */ +#include #include #include #include @@ -38,8 +39,6 @@ */ #define MUX_PIN_ID_MASK GENMASK(15, 0) #define MUX_FUNC_MASK GENMASK(31, 16) -#define MUX_FUNC_OFFS 16 -#define MUX_FUNC(pinconf) (((pinconf) & MUX_FUNC_MASK) >> MUX_FUNC_OFFS) /* PIN capabilities */ #define PIN_CFG_IOLH_A BIT(0) @@ -81,8 +80,12 @@ * n indicates number of pins in the port, a is the register index * and f is pin configuration capabilities supported. */ -#define RZG2L_GPIO_PORT_PACK(n, a, f) (((n) << 28) | ((a) << 20) | (f)) -#define RZG2L_GPIO_PORT_GET_PINCNT(x) (((x) & GENMASK(30, 28)) >> 28) +#define PIN_CFG_PIN_CNT_MASK GENMASK(30, 28) +#define PIN_CFG_PIN_REG_MASK GENMASK(27, 20) +#define PIN_CFG_MASK GENMASK(19, 0) +#define RZG2L_GPIO_PORT_PACK(n, a, f) (FIELD_PREP_CONST(PIN_CFG_PIN_CNT_MASK, (n)) | \ + FIELD_PREP_CONST(PIN_CFG_PIN_REG_MASK, (a)) | \ + FIELD_PREP_CONST(PIN_CFG_MASK, (f))) /* * BIT(31) indicates dedicated pin, p is the register index while @@ -90,14 +93,18 @@ * (b * 8) and f is the pin configuration capabilities supported. */ #define RZG2L_SINGLE_PIN BIT(31) +#define RZG2L_SINGLE_PIN_INDEX_MASK GENMASK(30, 24) +#define RZG2L_SINGLE_PIN_BITS_MASK GENMASK(22, 20) + #define RZG2L_SINGLE_PIN_PACK(p, b, f) (RZG2L_SINGLE_PIN | \ - ((p) << 24) | ((b) << 20) | (f)) -#define RZG2L_SINGLE_PIN_GET_BIT(x) (((x) & GENMASK(22, 20)) >> 20) + FIELD_PREP_CONST(RZG2L_SINGLE_PIN_INDEX_MASK, (p)) | \ + FIELD_PREP_CONST(RZG2L_SINGLE_PIN_BITS_MASK, (b)) | \ + FIELD_PREP_CONST(PIN_CFG_MASK, (f))) -#define RZG2L_PIN_CFG_TO_CAPS(cfg) ((cfg) & GENMASK(19, 0)) +#define RZG2L_PIN_CFG_TO_CAPS(cfg) ((cfg) & PIN_CFG_MASK) #define RZG2L_PIN_CFG_TO_PORT_OFFSET(cfg) ((cfg) & RZG2L_SINGLE_PIN ? \ - (((cfg) & GENMASK(30, 24)) >> 24) : \ - (((cfg) & GENMASK(26, 20)) >> 20)) + FIELD_GET(RZG2L_SINGLE_PIN_INDEX_MASK, (cfg)) : \ + FIELD_GET(PIN_CFG_PIN_REG_MASK, (cfg))) #define P(off) (0x0000 + (off)) #define PM(off) (0x0100 + (off) * 2) @@ -432,8 +439,8 @@ static int rzg2l_dt_subnode_to_map(struct pinctrl_dev *pctldev, ret = of_property_read_u32_index(np, "pinmux", i, &value); if (ret) goto done; - pins[i] = value & MUX_PIN_ID_MASK; - psel_val[i] = MUX_FUNC(value); + pins[i] = FIELD_GET(MUX_PIN_ID_MASK, value); + psel_val[i] = FIELD_GET(MUX_FUNC_MASK, value); } if (parent) { @@ -560,7 +567,7 @@ static int rzg2l_dt_node_to_map(struct pinctrl_dev *pctldev, static int rzg2l_validate_gpio_pin(struct rzg2l_pinctrl *pctrl, u32 cfg, u32 port, u8 bit) { - u8 pincount = RZG2L_GPIO_PORT_GET_PINCNT(cfg); + u8 pincount = FIELD_GET(PIN_CFG_PIN_CNT_MASK, cfg); u32 off = RZG2L_PIN_CFG_TO_PORT_OFFSET(cfg); u32 data; @@ -868,7 +875,7 @@ static int rzg2l_pinctrl_pinconf_get(struct pinctrl_dev *pctldev, off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data); cfg = RZG2L_PIN_CFG_TO_CAPS(*pin_data); if (*pin_data & RZG2L_SINGLE_PIN) { - bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data); + bit = FIELD_GET(RZG2L_SINGLE_PIN_BITS_MASK, *pin_data); } else { bit = RZG2L_PIN_ID_TO_PIN(_pin); @@ -972,7 +979,7 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, off = RZG2L_PIN_CFG_TO_PORT_OFFSET(*pin_data); cfg = RZG2L_PIN_CFG_TO_CAPS(*pin_data); if (*pin_data & RZG2L_SINGLE_PIN) { - bit = RZG2L_SINGLE_PIN_GET_BIT(*pin_data); + bit = FIELD_GET(RZG2L_SINGLE_PIN_BITS_MASK, *pin_data); } else { bit = RZG2L_PIN_ID_TO_PIN(_pin); @@ -1608,12 +1615,12 @@ static int rzg2l_gpio_get_gpioint(unsigned int virq, const struct rzg2l_pinctrl_ bit = virq % 8; if (port >= data->n_ports || - bit >= RZG2L_GPIO_PORT_GET_PINCNT(data->port_pin_configs[port])) + bit >= FIELD_GET(PIN_CFG_PIN_CNT_MASK, data->port_pin_configs[port])) return -EINVAL; gpioint = bit; for (i = 0; i < port; i++) - gpioint += RZG2L_GPIO_PORT_GET_PINCNT(data->port_pin_configs[i]); + gpioint += FIELD_GET(PIN_CFG_PIN_CNT_MASK, data->port_pin_configs[i]); return gpioint; } @@ -1788,7 +1795,7 @@ static void rzg2l_init_irq_valid_mask(struct gpio_chip *gc, bit = offset % 8; if (port >= pctrl->data->n_ports || - bit >= RZG2L_GPIO_PORT_GET_PINCNT(pctrl->data->port_pin_configs[port])) + bit >= FIELD_GET(PIN_CFG_PIN_CNT_MASK, pctrl->data->port_pin_configs[port])) clear_bit(offset, valid_mask); } }