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[23.128.96.33]) by mx.google.com with ESMTPS id h11-20020a056a00170b00b006cbe53e19fdsi1305128pfc.222.2023.11.23.05.43.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Nov 2023 05:43:22 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) client-ip=23.128.96.33; Authentication-Results: mx.google.com; dkim=pass header.i=@bootlin.com header.s=gm1 header.b=HCIFvOPp; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.33 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=bootlin.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by lipwig.vger.email (Postfix) with ESMTP id 231038299E27; Thu, 23 Nov 2023 05:43:17 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at lipwig.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345581AbjKWNmt (ORCPT + 99 others); Thu, 23 Nov 2023 08:42:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40848 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345541AbjKWNml (ORCPT ); Thu, 23 Nov 2023 08:42:41 -0500 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [217.70.183.200]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9DE3A1B3; Thu, 23 Nov 2023 05:42:46 -0800 (PST) Received: by mail.gandi.net (Postfix) with ESMTPSA id D44D32000E; Thu, 23 Nov 2023 13:42:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1700746965; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=AyPrjizUA7AoOK79nBkVWN1DIDJ98is+DWqbKYc4P3M=; b=HCIFvOPp23UQYnWmqycS7J/ufiipru5suOiftRooEXg296KJToK8I1LRgv2P9behXs8m4Z GtFPdr92An4CyAuTAyvtXBPu1j+NI/csyxQWgJz4dNBWaSM6dxvulgQYBRh0zKabcYpSkw 38kIDWQJ0S4z/rQcBWHTLerIcPfIu8DRubx0DaeRBL5vCHYtsGy/Zo1NN/hEVEZSTRY5c7 p96PEJV/7hDuD/SikMLhB/uHycGYK8/JSTs9wRabO45BUaQ84OKh9qGaA8pTSZnBGAqXaO nb5AR506jNLLGlMPoFDe+UTqDJuVkmNP4God4Odlvj2uefR1NmFc+8SNalfPCg== From: =?utf-8?q?Th=C3=A9o_Lebrun?= Date: Thu, 23 Nov 2023 14:42:40 +0100 Subject: [PATCH v4 2/6] tty: serial: amba: Use linux/bits.h macros for constant declarations MIME-Version: 1.0 Message-Id: <20231123-mbly-uart-v4-2-7f913a74ff89@bootlin.com> References: <20231123-mbly-uart-v4-0-7f913a74ff89@bootlin.com> In-Reply-To: <20231123-mbly-uart-v4-0-7f913a74ff89@bootlin.com> To: Russell King , Greg Kroah-Hartman , Jiri Slaby Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, Linus Walleij , =?utf-8?q?Gr=C3=A9gory_Clement?= , Alexandre Belloni , Thomas Petazzoni , Vladimir Kondratiev , Tawfik Bayouk , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , =?utf-8?q?T?= =?utf-8?q?h=C3=A9o_Lebrun?= X-Mailer: b4 0.12.3 X-GND-Sasl: theo.lebrun@bootlin.com X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Thu, 23 Nov 2023 05:43:17 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783362489200581080 X-GMAIL-MSGID: 1783362489200581080 The driver uses bit shifts and hexadecimal expressions to declare constants. Replace that with the BIT() & FIELD_PREP_CONST() macros to clarify intent. Reviewed-by: Linus Walleij Reviewed-by: Ilpo Järvinen Signed-off-by: Théo Lebrun --- include/linux/amba/serial.h | 247 ++++++++++++++++++++++---------------------- 1 file changed, 126 insertions(+), 121 deletions(-) diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h index 27003ec52114..d179f7161110 100644 --- a/include/linux/amba/serial.h +++ b/include/linux/amba/serial.h @@ -10,6 +10,7 @@ #ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H #define ASM_ARM_HARDWARE_SERIAL_AMBA_H +#include #include /* ------------------------------------------------------------------------------- @@ -70,138 +71,142 @@ #define ZX_UART011_ICR 0x4c #define ZX_UART011_DMACR 0x50 -#define UART011_DR_OE (1 << 11) -#define UART011_DR_BE (1 << 10) -#define UART011_DR_PE (1 << 9) -#define UART011_DR_FE (1 << 8) - -#define UART01x_RSR_OE 0x08 -#define UART01x_RSR_BE 0x04 -#define UART01x_RSR_PE 0x02 -#define UART01x_RSR_FE 0x01 - -#define UART011_FR_RI 0x100 -#define UART011_FR_TXFE 0x080 -#define UART011_FR_RXFF 0x040 -#define UART01x_FR_TXFF 0x020 -#define UART01x_FR_RXFE 0x010 -#define UART01x_FR_BUSY 0x008 -#define UART01x_FR_DCD 0x004 -#define UART01x_FR_DSR 0x002 -#define UART01x_FR_CTS 0x001 +#define UART011_DR_OE BIT(11) +#define UART011_DR_BE BIT(10) +#define UART011_DR_PE BIT(9) +#define UART011_DR_FE BIT(8) + +#define UART01x_RSR_OE BIT(3) +#define UART01x_RSR_BE BIT(2) +#define UART01x_RSR_PE BIT(1) +#define UART01x_RSR_FE BIT(0) + +#define UART011_FR_RI BIT(8) +#define UART011_FR_TXFE BIT(7) +#define UART011_FR_RXFF BIT(6) +#define UART01x_FR_TXFF BIT(5) +#define UART01x_FR_RXFE BIT(4) +#define UART01x_FR_BUSY BIT(3) +#define UART01x_FR_DCD BIT(2) +#define UART01x_FR_DSR BIT(1) +#define UART01x_FR_CTS BIT(0) #define UART01x_FR_TMSK (UART01x_FR_TXFF + UART01x_FR_BUSY) /* * Some bits of Flag Register on ZTE device have different position from * standard ones. */ -#define ZX_UART01x_FR_BUSY 0x100 -#define ZX_UART01x_FR_DSR 0x008 -#define ZX_UART01x_FR_CTS 0x002 -#define ZX_UART011_FR_RI 0x001 - -#define UART011_CR_CTSEN 0x8000 /* CTS hardware flow control */ -#define UART011_CR_RTSEN 0x4000 /* RTS hardware flow control */ -#define UART011_CR_OUT2 0x2000 /* OUT2 */ -#define UART011_CR_OUT1 0x1000 /* OUT1 */ -#define UART011_CR_RTS 0x0800 /* RTS */ -#define UART011_CR_DTR 0x0400 /* DTR */ -#define UART011_CR_RXE 0x0200 /* receive enable */ -#define UART011_CR_TXE 0x0100 /* transmit enable */ -#define UART011_CR_LBE 0x0080 /* loopback enable */ -#define UART010_CR_RTIE 0x0040 -#define UART010_CR_TIE 0x0020 -#define UART010_CR_RIE 0x0010 -#define UART010_CR_MSIE 0x0008 -#define ST_UART011_CR_OVSFACT 0x0008 /* Oversampling factor */ -#define UART01x_CR_IIRLP 0x0004 /* SIR low power mode */ -#define UART01x_CR_SIREN 0x0002 /* SIR enable */ -#define UART01x_CR_UARTEN 0x0001 /* UART enable */ - -#define UART011_LCRH_SPS 0x80 +#define ZX_UART01x_FR_BUSY BIT(8) +#define ZX_UART01x_FR_DSR BIT(3) +#define ZX_UART01x_FR_CTS BIT(1) +#define ZX_UART011_FR_RI BIT(0) + +#define UART011_CR_CTSEN BIT(15) /* CTS hardware flow control */ +#define UART011_CR_RTSEN BIT(14) /* RTS hardware flow control */ +#define UART011_CR_OUT2 BIT(13) /* OUT2 */ +#define UART011_CR_OUT1 BIT(12) /* OUT1 */ +#define UART011_CR_RTS BIT(11) /* RTS */ +#define UART011_CR_DTR BIT(10) /* DTR */ +#define UART011_CR_RXE BIT(9) /* receive enable */ +#define UART011_CR_TXE BIT(8) /* transmit enable */ +#define UART011_CR_LBE BIT(7) /* loopback enable */ +#define UART010_CR_RTIE BIT(6) +#define UART010_CR_TIE BIT(5) +#define UART010_CR_RIE BIT(4) +#define UART010_CR_MSIE BIT(3) +#define ST_UART011_CR_OVSFACT BIT(3) /* Oversampling factor */ +#define UART01x_CR_IIRLP BIT(2) /* SIR low power mode */ +#define UART01x_CR_SIREN BIT(1) /* SIR enable */ +#define UART01x_CR_UARTEN BIT(0) /* UART enable */ + +#define UART011_LCRH_SPS BIT(7) #define UART01x_LCRH_WLEN_8 0x60 #define UART01x_LCRH_WLEN_7 0x40 #define UART01x_LCRH_WLEN_6 0x20 #define UART01x_LCRH_WLEN_5 0x00 -#define UART01x_LCRH_FEN 0x10 -#define UART01x_LCRH_STP2 0x08 -#define UART01x_LCRH_EPS 0x04 -#define UART01x_LCRH_PEN 0x02 -#define UART01x_LCRH_BRK 0x01 - -#define ST_UART011_DMAWM_RX_1 (0 << 3) -#define ST_UART011_DMAWM_RX_2 (1 << 3) -#define ST_UART011_DMAWM_RX_4 (2 << 3) -#define ST_UART011_DMAWM_RX_8 (3 << 3) -#define ST_UART011_DMAWM_RX_16 (4 << 3) -#define ST_UART011_DMAWM_RX_32 (5 << 3) -#define ST_UART011_DMAWM_RX_48 (6 << 3) -#define ST_UART011_DMAWM_TX_1 0 -#define ST_UART011_DMAWM_TX_2 1 -#define ST_UART011_DMAWM_TX_4 2 -#define ST_UART011_DMAWM_TX_8 3 -#define ST_UART011_DMAWM_TX_16 4 -#define ST_UART011_DMAWM_TX_32 5 -#define ST_UART011_DMAWM_TX_48 6 - -#define UART010_IIR_RTIS 0x08 -#define UART010_IIR_TIS 0x04 -#define UART010_IIR_RIS 0x02 -#define UART010_IIR_MIS 0x01 - -#define UART011_IFLS_RX1_8 (0 << 3) -#define UART011_IFLS_RX2_8 (1 << 3) -#define UART011_IFLS_RX4_8 (2 << 3) -#define UART011_IFLS_RX6_8 (3 << 3) -#define UART011_IFLS_RX7_8 (4 << 3) -#define UART011_IFLS_TX1_8 (0 << 0) -#define UART011_IFLS_TX2_8 (1 << 0) -#define UART011_IFLS_TX4_8 (2 << 0) -#define UART011_IFLS_TX6_8 (3 << 0) -#define UART011_IFLS_TX7_8 (4 << 0) +#define UART01x_LCRH_FEN BIT(4) +#define UART01x_LCRH_STP2 BIT(3) +#define UART01x_LCRH_EPS BIT(2) +#define UART01x_LCRH_PEN BIT(1) +#define UART01x_LCRH_BRK BIT(0) + +#define ST_UART011_DMAWM_RX GENMASK(5, 3) +#define ST_UART011_DMAWM_RX_1 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 0) +#define ST_UART011_DMAWM_RX_2 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 1) +#define ST_UART011_DMAWM_RX_4 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 2) +#define ST_UART011_DMAWM_RX_8 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 3) +#define ST_UART011_DMAWM_RX_16 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 4) +#define ST_UART011_DMAWM_RX_32 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 5) +#define ST_UART011_DMAWM_RX_48 FIELD_PREP_CONST(ST_UART011_DMAWM_RX, 6) +#define ST_UART011_DMAWM_TX GENMASK(2, 0) +#define ST_UART011_DMAWM_TX_1 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 0) +#define ST_UART011_DMAWM_TX_2 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 1) +#define ST_UART011_DMAWM_TX_4 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 2) +#define ST_UART011_DMAWM_TX_8 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 3) +#define ST_UART011_DMAWM_TX_16 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 4) +#define ST_UART011_DMAWM_TX_32 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 5) +#define ST_UART011_DMAWM_TX_48 FIELD_PREP_CONST(ST_UART011_DMAWM_TX, 6) + +#define UART010_IIR_RTIS BIT(3) +#define UART010_IIR_TIS BIT(2) +#define UART010_IIR_RIS BIT(1) +#define UART010_IIR_MIS BIT(0) + +#define UART011_IFLS_RXIFLSEL GENMASK(5, 3) +#define UART011_IFLS_RX1_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 0) +#define UART011_IFLS_RX2_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 1) +#define UART011_IFLS_RX4_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 2) +#define UART011_IFLS_RX6_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 3) +#define UART011_IFLS_RX7_8 FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 4) +#define UART011_IFLS_TXIFLSEL GENMASK(2, 0) +#define UART011_IFLS_TX1_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 0) +#define UART011_IFLS_TX2_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 1) +#define UART011_IFLS_TX4_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 2) +#define UART011_IFLS_TX6_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 3) +#define UART011_IFLS_TX7_8 FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 4) /* special values for ST vendor with deeper fifo */ -#define UART011_IFLS_RX_HALF (5 << 3) -#define UART011_IFLS_TX_HALF (5 << 0) - -#define UART011_OEIM (1 << 10) /* overrun error interrupt mask */ -#define UART011_BEIM (1 << 9) /* break error interrupt mask */ -#define UART011_PEIM (1 << 8) /* parity error interrupt mask */ -#define UART011_FEIM (1 << 7) /* framing error interrupt mask */ -#define UART011_RTIM (1 << 6) /* receive timeout interrupt mask */ -#define UART011_TXIM (1 << 5) /* transmit interrupt mask */ -#define UART011_RXIM (1 << 4) /* receive interrupt mask */ -#define UART011_DSRMIM (1 << 3) /* DSR interrupt mask */ -#define UART011_DCDMIM (1 << 2) /* DCD interrupt mask */ -#define UART011_CTSMIM (1 << 1) /* CTS interrupt mask */ -#define UART011_RIMIM (1 << 0) /* RI interrupt mask */ - -#define UART011_OEIS (1 << 10) /* overrun error interrupt status */ -#define UART011_BEIS (1 << 9) /* break error interrupt status */ -#define UART011_PEIS (1 << 8) /* parity error interrupt status */ -#define UART011_FEIS (1 << 7) /* framing error interrupt status */ -#define UART011_RTIS (1 << 6) /* receive timeout interrupt status */ -#define UART011_TXIS (1 << 5) /* transmit interrupt status */ -#define UART011_RXIS (1 << 4) /* receive interrupt status */ -#define UART011_DSRMIS (1 << 3) /* DSR interrupt status */ -#define UART011_DCDMIS (1 << 2) /* DCD interrupt status */ -#define UART011_CTSMIS (1 << 1) /* CTS interrupt status */ -#define UART011_RIMIS (1 << 0) /* RI interrupt status */ - -#define UART011_OEIC (1 << 10) /* overrun error interrupt clear */ -#define UART011_BEIC (1 << 9) /* break error interrupt clear */ -#define UART011_PEIC (1 << 8) /* parity error interrupt clear */ -#define UART011_FEIC (1 << 7) /* framing error interrupt clear */ -#define UART011_RTIC (1 << 6) /* receive timeout interrupt clear */ -#define UART011_TXIC (1 << 5) /* transmit interrupt clear */ -#define UART011_RXIC (1 << 4) /* receive interrupt clear */ -#define UART011_DSRMIC (1 << 3) /* DSR interrupt clear */ -#define UART011_DCDMIC (1 << 2) /* DCD interrupt clear */ -#define UART011_CTSMIC (1 << 1) /* CTS interrupt clear */ -#define UART011_RIMIC (1 << 0) /* RI interrupt clear */ - -#define UART011_DMAONERR (1 << 2) /* disable dma on error */ -#define UART011_TXDMAE (1 << 1) /* enable transmit dma */ -#define UART011_RXDMAE (1 << 0) /* enable receive dma */ +#define UART011_IFLS_RX_HALF FIELD_PREP_CONST(UART011_IFLS_RXIFLSEL, 5) +#define UART011_IFLS_TX_HALF FIELD_PREP_CONST(UART011_IFLS_TXIFLSEL, 5) + +#define UART011_OEIM BIT(10) /* overrun error interrupt mask */ +#define UART011_BEIM BIT(9) /* break error interrupt mask */ +#define UART011_PEIM BIT(8) /* parity error interrupt mask */ +#define UART011_FEIM BIT(7) /* framing error interrupt mask */ +#define UART011_RTIM BIT(6) /* receive timeout interrupt mask */ +#define UART011_TXIM BIT(5) /* transmit interrupt mask */ +#define UART011_RXIM BIT(4) /* receive interrupt mask */ +#define UART011_DSRMIM BIT(3) /* DSR interrupt mask */ +#define UART011_DCDMIM BIT(2) /* DCD interrupt mask */ +#define UART011_CTSMIM BIT(1) /* CTS interrupt mask */ +#define UART011_RIMIM BIT(0) /* RI interrupt mask */ + +#define UART011_OEIS BIT(10) /* overrun error interrupt status */ +#define UART011_BEIS BIT(9) /* break error interrupt status */ +#define UART011_PEIS BIT(8) /* parity error interrupt status */ +#define UART011_FEIS BIT(7) /* framing error interrupt status */ +#define UART011_RTIS BIT(6) /* receive timeout interrupt status */ +#define UART011_TXIS BIT(5) /* transmit interrupt status */ +#define UART011_RXIS BIT(4) /* receive interrupt status */ +#define UART011_DSRMIS BIT(3) /* DSR interrupt status */ +#define UART011_DCDMIS BIT(2) /* DCD interrupt status */ +#define UART011_CTSMIS BIT(1) /* CTS interrupt status */ +#define UART011_RIMIS BIT(0) /* RI interrupt status */ + +#define UART011_OEIC BIT(10) /* overrun error interrupt clear */ +#define UART011_BEIC BIT(9) /* break error interrupt clear */ +#define UART011_PEIC BIT(8) /* parity error interrupt clear */ +#define UART011_FEIC BIT(7) /* framing error interrupt clear */ +#define UART011_RTIC BIT(6) /* receive timeout interrupt clear */ +#define UART011_TXIC BIT(5) /* transmit interrupt clear */ +#define UART011_RXIC BIT(4) /* receive interrupt clear */ +#define UART011_DSRMIC BIT(3) /* DSR interrupt clear */ +#define UART011_DCDMIC BIT(2) /* DCD interrupt clear */ +#define UART011_CTSMIC BIT(1) /* CTS interrupt clear */ +#define UART011_RIMIC BIT(0) /* RI interrupt clear */ + +#define UART011_DMAONERR BIT(2) /* disable dma on error */ +#define UART011_TXDMAE BIT(1) /* enable transmit dma */ +#define UART011_RXDMAE BIT(0) /* enable receive dma */ #define UART01x_RSR_ANY (UART01x_RSR_OE | UART01x_RSR_BE | UART01x_RSR_PE | UART01x_RSR_FE) #define UART01x_FR_MODEM_ANY (UART01x_FR_DCD | UART01x_FR_DSR | UART01x_FR_CTS)