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Wed, 6 May 2020 16:00:15 +0900 (KST) Received: from ishtar.dsn.sec.samsung.com (unknown [12.36.155.159]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20200506070015epsmtip1450ad8070358777f8578415f18b1d91b~MXkQtcnZ-2422924229epsmtip14; Wed, 6 May 2020 07:00:15 +0000 (GMT) From: Hyunki Koo To: Kukjin Kim , Krzysztof Kozlowski , Greg Kroah-Hartman , Jiri Slaby , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Hyunki Koo Subject: [PATCH v9 1/3] serial: samsung: Replace rd_regb/wr_regb with rd_reg/wr_reg Date: Wed, 6 May 2020 16:00:05 +0900 Message-Id: <20200506070009.16809-1-hyunki00.koo@samsung.com> X-Mailer: git-send-email 2.15.0.rc1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrDKsWRmVeSWpSXmKPExsWy7bCmqW5jwqY4g6PdAhbNi9ezWaxaeoPZ YsqGD0wW/Y9fM1ucP7+B3WLT42usFpd3zWGzmHF+H5PFmcW97A6cHptWdbJ57J+7ht1j85J6 j74tqxg91m+5yuLxeZNcAFtUjk1GamJKapFCal5yfkpmXrqtkndwvHO8qZmBoa6hpYW5kkJe Ym6qrZKLT4CuW2YO0FFKCmWJOaVAoYDE4mIlfTubovzSklSFjPziElul1IKUnAJDwwK94sTc 4tK8dL3k/FwrQwMDI1OgyoScjCULVjMW3JCs+D5rA3sD43HRLkZODgkBE4l/F9cydTFycQgJ 7GCUeH9jJwuE84lR4ufdu2wQzjdGiSmnvjPDtDR872GGSOxllOif/IERwvnBKPFjz0FGkCo2 AW2JN99nglWJCCxhkph+/gkLSIJZQFPix4EbrCC2sECoxO0th5hAbBYBVYktrzaB2bwCthKT //1kg1inLHHh3RJWkEESAsfYJfZs+swOkXCR2Nk/CeomYYlXx7dAxaUkPr/bC9VcL7GvbSI7 RHMP0EcfnrJCJIwlZj1rBzqVA+yi9bv0QUyQZUduQd3JJ9Fx+C87RJhXoqNNCKJRTWLdtxdM ELaMxJqnu6BKPCQ+TfcECQsJxEo07tjFNoFRdhbC+AWMjKsYxVILinPTU4uNCoyQY2kTIzil abntYFxyzucQowAHoxIPr4H7xjgh1sSy4srcQ4wSHMxKIrw8P4BCvCmJlVWpRfnxRaU5qcWH GE2BYTeRWUo0OR+YbvNK4g1NjczMDCxNLUzNjCyUxHk3cd+MERJITyxJzU5NLUgtgulj4uCU amCMZa+M8k7xUn4gc/P252dMN60vfze5c+5etFh6j98fvZyTRdIX2gPzetSeLfujzps2+/L9 zAnpK2ILEve1BR25/fFkYYlVwrNNRdFBh1pu1W3zVoi7wJWa0nKIr1SihUPj6u/eg4/6OE9e mW+4KvzQ8qfL1pg5hR4s2Pjq8qq6PfFTYhTf7/BQYinOSDTUYi4qTgQAJj3qoH8DAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupjluLIzCtJLcpLzFFi42LZdlhJTrc+YVOcwf7bShbNi9ezWaxaeoPZ YsqGD0wW/Y9fM1ucP7+B3WLT42usFpd3zWGzmHF+H5PFmcW97A6cHptWdbJ57J+7ht1j85J6 j74tqxg91m+5yuLxeZNcAFsUl01Kak5mWWqRvl0CV8aSBasZC25IVnyftYG9gfG4aBcjJ4eE gIlEw/ce5i5GLg4hgd2MEje/LmOCSMhITHixhBnCFpa433KEFaLoG6PEx4kfGEESbALaEm++ zwTrFhFYxSRx/cASsG5mAU2JHwdusILYwgLBEtMef2MHsVkEVCW2vNoEVsMrYCsx+d9PNogN yhIX3i1hncDIs4CRYRWjZGpBcW56brFhgWFearlecWJucWleul5yfu4mRnCQaWnuYNy+6oPe IUYmDsZDjBIczEoivDw/NsYJ8aYkVlalFuXHF5XmpBYfYpTmYFES571RuDBOSCA9sSQ1OzW1 ILUIJsvEwSnVwGTkwOTHserz7Vm1spqev6s3bJQsv7NA+RJLpN+pT68jmJi3q5zo1rvEwRcz uf2+RlRK3Yms/qT5zosPPPyzLGrOh/sm3F4ydWHnWL/s9TvOPo/1mVLH6rX9+U9+bxaSLvlu WVrIMfXn+1Wmb668NJ/36LvI2U1v55QxZIb7fNw/yYAzfGNIrtOP/e/U/pn8+3E+wE5gSYBZ Y1bz67aAV2dYbzWfOrr5VYrrv+U7EvJP//NPKy9ylJ7lEF/w9dLiGj7OTNvNa790HT0nWp84 /aD6s90FhtdTpGzFvKK8jy7ZuFNR5kAIt9ZXLt/GhF9/Xzl279nFpRZqsXxzI/vGRezv59yr YT0QmHIg8tlLRUklluKMREMt5qLiRABgR5VqoQIAAA== X-CMS-MailID: 20200506070015epcas2p2f2ce5d07918dbea764e2830d9024fc5f X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20200506070015epcas2p2f2ce5d07918dbea764e2830d9024fc5f References: Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org This patch change the name of macro for general usage. Signed-off-by: Hyunki Koo --- drivers/tty/serial/samsung_tty.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c index 73f951d65b93..326b0164609c 100644 --- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -154,10 +154,10 @@ struct s3c24xx_uart_port { #define portaddrl(port, reg) \ ((unsigned long *)(unsigned long)((port)->membase + (reg))) -#define rd_regb(port, reg) (readb_relaxed(portaddr(port, reg))) +#define rd_reg(port, reg) (readb_relaxed(portaddr(port, reg))) #define rd_regl(port, reg) (readl_relaxed(portaddr(port, reg))) -#define wr_regb(port, reg, val) writeb_relaxed(val, portaddr(port, reg)) +#define wr_reg(port, reg, val) writeb_relaxed(val, portaddr(port, reg)) #define wr_regl(port, reg, val) writel_relaxed(val, portaddr(port, reg)) /* Byte-order aware bit setting/clearing functions. */ @@ -714,7 +714,7 @@ static void s3c24xx_serial_rx_drain_fifo(struct s3c24xx_uart_port *ourport) fifocnt--; uerstat = rd_regl(port, S3C2410_UERSTAT); - ch = rd_regb(port, S3C2410_URXH); + ch = rd_reg(port, S3C2410_URXH); if (port->flags & UPF_CONS_FLOW) { int txe = s3c24xx_serial_txempty_nofifo(port); @@ -826,7 +826,7 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id) } if (port->x_char) { - wr_regb(port, S3C2410_UTXH, port->x_char); + wr_reg(port, S3C2410_UTXH, port->x_char); port->icount.tx++; port->x_char = 0; goto out; @@ -852,7 +852,7 @@ static irqreturn_t s3c24xx_serial_tx_chars(int irq, void *id) if (rd_regl(port, S3C2410_UFSTAT) & ourport->info->tx_fifofull) break; - wr_regb(port, S3C2410_UTXH, xmit->buf[xmit->tail]); + wr_reg(port, S3C2410_UTXH, xmit->buf[xmit->tail]); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; count--; @@ -916,7 +916,7 @@ static unsigned int s3c24xx_serial_tx_empty(struct uart_port *port) /* no modem control lines */ static unsigned int s3c24xx_serial_get_mctrl(struct uart_port *port) { - unsigned int umstat = rd_regb(port, S3C2410_UMSTAT); + unsigned int umstat = rd_reg(port, S3C2410_UMSTAT); if (umstat & S3C2410_UMSTAT_CTS) return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS; @@ -2185,7 +2185,7 @@ static int s3c24xx_serial_get_poll_char(struct uart_port *port) if (s3c24xx_serial_rx_fifocnt(ourport, ufstat) == 0) return NO_POLL_CHAR; - return rd_regb(port, S3C2410_URXH); + return rd_reg(port, S3C2410_URXH); } static void s3c24xx_serial_put_poll_char(struct uart_port *port, @@ -2200,7 +2200,7 @@ static void s3c24xx_serial_put_poll_char(struct uart_port *port, while (!s3c24xx_serial_console_txrdy(port, ufcon)) cpu_relax(); - wr_regb(port, S3C2410_UTXH, c); + wr_reg(port, S3C2410_UTXH, c); } #endif /* CONFIG_CONSOLE_POLL */ @@ -2212,7 +2212,7 @@ s3c24xx_serial_console_putchar(struct uart_port *port, int ch) while (!s3c24xx_serial_console_txrdy(port, ufcon)) cpu_relax(); - wr_regb(port, S3C2410_UTXH, ch); + wr_reg(port, S3C2410_UTXH, ch); } static void From patchwork Wed May 6 07:00:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hyunki Koo X-Patchwork-Id: 214027 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08AC3C47259 for ; 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Wed, 6 May 2020 07:00:29 +0000 (GMT) Received: from epsmgms1p2.samsung.com (unknown [182.195.42.42]) by epsmtrp1.samsung.com (KnoxPortal) with ESMTP id 20200506070029epsmtrp19cd6dcbccdee9be201e179cf892b413c~MXkdxiygi2938229382epsmtrp1H; Wed, 6 May 2020 07:00:29 +0000 (GMT) X-AuditID: b6c32a45-af9ff7000000c2f4-dd-5eb2608d48d2 Received: from epsmtip1.samsung.com ( [182.195.34.30]) by epsmgms1p2.samsung.com (Symantec Messaging Gateway) with SMTP id 0D.56.25866.D8062BE5; Wed, 6 May 2020 16:00:29 +0900 (KST) Received: from ishtar.dsn.sec.samsung.com (unknown [12.36.155.159]) by epsmtip1.samsung.com (KnoxPortal) with ESMTPA id 20200506070029epsmtip1d003204373390fa153305fad920fdfb9~MXkdmMF3i2294422944epsmtip1I; Wed, 6 May 2020 07:00:29 +0000 (GMT) From: Hyunki Koo To: Kukjin Kim , Krzysztof Kozlowski , Greg Kroah-Hartman , Jiri Slaby , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Hyunki Koo Subject: [PATCH v9 3/3] tty: samsung_tty: 32-bit access for TX/RX hold registers Date: Wed, 6 May 2020 16:00:07 +0900 Message-Id: <20200506070009.16809-3-hyunki00.koo@samsung.com> X-Mailer: git-send-email 2.15.0.rc1 In-Reply-To: <20200506070009.16809-1-hyunki00.koo@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrBKsWRmVeSWpSXmKPExsWy7bCmuW5fwqY4g1tNzBbNi9ezWaxaeoPZ YsqGD0wW/Y9fM1ucP7+B3WLT42usFpd3zWGzmHF+H5PFmcW97A6cHptWdbJ57J+7ht1j85J6 j74tqxg91m+5yuLxeZNcAFtUjk1GamJKapFCal5yfkpmXrqtkndwvHO8qZmBoa6hpYW5kkJe Ym6qrZKLT4CuW2YO0FFKCmWJOaVAoYDE4mIlfTubovzSklSFjPziElul1IKUnAJDwwK94sTc 4tK8dL3k/FwrQwMDI1OgyoScjJYH71gKvkhWLLu9jrGBsUe0i5GTQ0LARGLNlunsXYxcHEIC OxglFu89xALhfGKUaD7bxwThfGaUePLwLmsXIwdYy8vjYN1CArsYJWatTIGo+cEoMb+phREk wSagLfHm+0xmkISIwBImiennn7CAJJgFNCV+HLjBCmILCwRJXFjUwAxiswioSkyf8QnM5hWw lTi5ZTkjxH3KEhfeLQGr5xSwk3jT9ZgVZKiEwD12iUMd81ghilwkbvw7DWULS7w6voUdwpaS eNnfBmXXS+xrm8gO0dzDKPHzw1OoBmOJWc/aGUFeA7lu/S59iC+VJY7cgrqZT6Lj8F92iDCv REebEESjmsS6by+YIGwZiTVPd0Ft8pB4evEYGyRQJjJKfJ38jW0Co9wshAULGBlXMYqlFhTn pqcWGxUYIsfYJkZwqtNy3cE445zPIUYBDkYlHl4D941xQqyJZcWVuYcYJTiYlUR4eX4AhXhT EiurUovy44tKc1KLDzGaAkNyIrOUaHI+MA3nlcQbmhqZmRlYmlqYmhlZKInzbua+GSMkkJ5Y kpqdmlqQWgTTx8TBKdXAqDj3j5qghe23/tefRLgdDr/U/CQ575fAjMAv0psStsjffCtr/PLa 8vNbD2z+MDXhqLmTpcm9pYzPwl6qG3+Lb6lhbAiMefHikaGygJij1U7hf1xFoe8Yi2JfbTl4 eyNfsK7a/+svTI8e4XzQqN2z7IrB0z3Bfe3n2wq5ZM7JRO3w2+2yt8TgthJLcUaioRZzUXEi APKZMiGLAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrKLMWRmVeSWpSXmKPExsWy7bCSnG5vwqY4gznbpS2aF69ns1i19Aaz xZQNH5gs+h+/ZrY4f34Du8Wmx9dYLS7vmsNmMeP8PiaLM4t72R04PTat6mTz2D93DbvH5iX1 Hn1bVjF6rN9ylcXj8ya5ALYoLpuU1JzMstQifbsEroyWB+9YCr5IViy7vY6xgbFHtIuRg0NC wETi5XEgk4tDSGAHo8SeO1MYuxg5geIyEhNeLGGGsIUl7rccYYUo+sYo8WvRVBaQBJuAtsSb 7zOZQRIiAquYJK4fWMIEkmAW0JT4ceAGK4gtLBAgMeHBarBJLAKqEtNnfAKzeQVsJU5uWQ61 TVniwrslYPWcAnYSb7oeg9lCQDU7+l4xTWDkW8DIsIpRMrWgODc9t9iwwCgvtVyvODG3uDQv XS85P3cTIzgktbR2MO5Z9UHvECMTB+MhRgkOZiURXp4fG+OEeFMSK6tSi/Lji0pzUosPMUpz sCiJ836dtTBOSCA9sSQ1OzW1ILUIJsvEwSnVwBS3N/F0T+SK/QJBPj0nTnFLlbAusOsodN5k 1cweZ2bxyuH9lB6RNCZZtV9n1jJelun3a5rx21w/wuCOecBD5sn/l/IkrVNVnd8uJLvG6DOX XfKKGf4MoYe3cvDrp970OPD8hZz3vdNXBbfcadOrspa8YldgPeXNthC1F4znzs4+/8D+954p n97sOP12Rb5fPsfrj4cPKDx6bmO6d8I5Nc6roZlnj7z2+5nBrafQpFpxKm5Xn3vace/ITwlP H3np97a9OazSrHF1bt2PT+rrMsLXupUauV4LZStexfSkV3+Sqb1Ej7hvy6M1l2sDf926EjLf dRpzmYtbwOmj3UIzLr/4P3+/7T5Dx7v7jso3SCuxFGckGmoxFxUnAgDay9rCuAIAAA== X-CMS-MailID: 20200506070029epcas2p4d4e86fad193180f71b70ea76e134d679 X-Msg-Generator: CA X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20200506070029epcas2p4d4e86fad193180f71b70ea76e134d679 References: <20200506070009.16809-1-hyunki00.koo@samsung.com> Sender: linux-serial-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org Support 32-bit access for the TX/RX hold registers UTXH and URXH. This is required for some newer SoCs. Signed-off-by: Hyunki Koo --- drivers/tty/serial/samsung_tty.c | 62 ++++++++++++++++++++++++++++++++++++---- 1 file changed, 57 insertions(+), 5 deletions(-) diff --git a/drivers/tty/serial/samsung_tty.c b/drivers/tty/serial/samsung_tty.c index 326b0164609c..6ef614d8648c 100644 --- a/drivers/tty/serial/samsung_tty.c +++ b/drivers/tty/serial/samsung_tty.c @@ -154,10 +154,33 @@ struct s3c24xx_uart_port { #define portaddrl(port, reg) \ ((unsigned long *)(unsigned long)((port)->membase + (reg))) -#define rd_reg(port, reg) (readb_relaxed(portaddr(port, reg))) +static u32 rd_reg(struct uart_port *port, u32 reg) +{ + switch (port->iotype) { + case UPIO_MEM: + return readb_relaxed(portaddr(port, reg)); + case UPIO_MEM32: + return readl_relaxed(portaddr(port, reg)); + default: + return 0; + } + return 0; +} + #define rd_regl(port, reg) (readl_relaxed(portaddr(port, reg))) -#define wr_reg(port, reg, val) writeb_relaxed(val, portaddr(port, reg)) +static void wr_reg(struct uart_port *port, u32 reg, u32 val) +{ + switch (port->iotype) { + case UPIO_MEM: + writeb_relaxed(val, portaddr(port, reg)); + break; + case UPIO_MEM32: + writel_relaxed(val, portaddr(port, reg)); + break; + } +} + #define wr_regl(port, reg, val) writel_relaxed(val, portaddr(port, reg)) /* Byte-order aware bit setting/clearing functions. */ @@ -1974,7 +1997,7 @@ static int s3c24xx_serial_probe(struct platform_device *pdev) struct device_node *np = pdev->dev.of_node; struct s3c24xx_uart_port *ourport; int index = probe_index; - int ret; + int ret, prop = 0; if (np) { ret = of_alias_get_id(np, "serial"); @@ -2000,10 +2023,27 @@ static int s3c24xx_serial_probe(struct platform_device *pdev) dev_get_platdata(&pdev->dev) : ourport->drv_data->def_cfg; - if (np) + if (np) { of_property_read_u32(np, "samsung,uart-fifosize", &ourport->port.fifosize); + if (of_property_read_u32(np, "reg-io-width", &prop) == 0) { + switch (prop) { + case 1: + ourport->port.iotype = UPIO_MEM; + break; + case 4: + ourport->port.iotype = UPIO_MEM32; + break; + default: + dev_warn(&pdev->dev, "unsupported reg-io-width (%d)\n", + prop); + ret = -EINVAL; + break; + } + } + } + if (ourport->drv_data->fifosize[index]) ourport->port.fifosize = ourport->drv_data->fifosize[index]; else if (ourport->info->fifosize) @@ -2587,6 +2627,18 @@ module_platform_driver(samsung_serial_driver); * Early console. */ +static void wr_reg_barrier(struct uart_port *port, u32 reg, u32 val) +{ + switch (port->iotype) { + case UPIO_MEM: + writeb(val, portaddr(port, reg)); + break; + case UPIO_MEM32: + writel(val, portaddr(port, reg)); + break; + } +} + struct samsung_early_console_data { u32 txfull_mask; }; @@ -2612,7 +2664,7 @@ static void samsung_early_putc(struct uart_port *port, int c) else samsung_early_busyuart(port); - writeb(c, port->membase + S3C2410_UTXH); + wr_reg_barrier(port, S3C2410_UTXH, c); } static void samsung_early_write(struct console *con, const char *s,