From patchwork Wed Jul 31 19:56:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 11069223 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5BC01174A for ; Wed, 31 Jul 2019 20:02:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4ABA520243 for ; Wed, 31 Jul 2019 20:02:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3EF02209CE; Wed, 31 Jul 2019 20:02:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BEEB822B39 for ; Wed, 31 Jul 2019 20:02:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730611AbfGaUCq (ORCPT ); Wed, 31 Jul 2019 16:02:46 -0400 Received: from mout.kundenserver.de ([212.227.126.135]:54159 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729280AbfGaUCq (ORCPT ); Wed, 31 Jul 2019 16:02:46 -0400 Received: from threadripper.lan ([149.172.19.189]) by mrelayeu.kundenserver.de (mreue012 [212.227.15.129]) with ESMTPA (Nemesis) id 1MyvFC-1iFEmI1isM-00vu1b; Wed, 31 Jul 2019 22:02:08 +0200 From: Arnd Bergmann To: soc@kernel.org, linux-arm-kernel@lists.infradead.org, Vladimir Zapolskiy , Sylvain Lemieux , Russell King , Gregory Clement , Linus Walleij Cc: Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , "David S. Miller" , Greg Kroah-Hartman , Alan Stern , Guenter Roeck , linux-gpio@vger.kernel.org, netdev@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-watchdog@vger.kernel.org, Arnd Bergmann , Jiri Slaby , linux-kernel@vger.kernel.org Subject: [PATCH 09/14] serial: lpc32xx: allow compile testing Date: Wed, 31 Jul 2019 21:56:51 +0200 Message-Id: <20190731195713.3150463-10-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20190731195713.3150463-1-arnd@arndb.de> References: <20190731195713.3150463-1-arnd@arndb.de> MIME-Version: 1.0 X-Provags-ID: V03:K1:U34UKG0WKd1du7DGye/96IP8sexEkIzBlk61JFzClDj31SLKqCI wfz+noGeI4XYslZMxD9cagGBYN/PWTDbo26SLz707TH/Ua6X9hBQLqZGlOQJxZ8AQi6UI9o cSjmHqUz43Veryx8v4Q1bfVU25rLjk0jJYvgztz+l1bZMNCjzxpn2Oz4oZ+VdmqEv+N2NyI AK7H4/I5OUe/oZGljJ50A== X-UI-Out-Filterresults: notjunk:1;V03:K0:xpMEYv/5InE=:SJjD2WgwLQK7f/E7eG49m1 ORCHWdS6/lv4MHlAX9BAyyAzpJ37dQYNMkXKmZj2nREnuOPDQi8KABrnPacczrAz27FJOfXrx R8OpIbGHb1OZXerV+HbTvHFFmIRMylgwXzscLtC9Lw21WwjNzEfvk5VXvk+RXedvozf707BnR gLKPap9ZJE1WdxxphI0eL3/CfKAz+4eWAxdfGq0g701jnm8txJekpOspq/R+klU7jVStL/qlo uFX4imePVsjfkU3XUgKN/J49zj/WCVXzjl5+bEfQrJzdneGQcuMy5Dflv1C9rJC1guUOKEClr D+MCibHfsUeL73Pz8TjL+aEee1QYidg9uAWVZVE6IO8u3yq4CJ+yRTDbQKlq8xtIz7RauM6Wo 2fzPgU5667Cs1YTWGXcBfPTSFcqcrGUl+7Db+yzjwvHi8W4s+cc9pZyw1lOlCEjkBUKpyXUGq 8oanZOfS4SDpK0V/rh8bp5wAytZ+pa58Nv0NkuphQIm1NgbZutoGbqzO+hSy87q1xXM0LmxVK C2vmeJ/BVUkQK9gGduSd5IZghQq/S65gYcPY34ce41IlP9mie+7rNba87dk+9KIQdEU1FkHt7 X/yu8Ev+mtMh5TQ8dP6o8gN1sNmc7ClBxwoMKNTbwQpTWhCggqRcZjVGcKgpYb4j65PeB1vgB zeQT+UXcTgGAOM/3NC2qSmGn6Dv0v/AuPh4G7fl00U4rgcXkRG1axjkHib/qYlhLxUc3YNvXv y/20aDue/cmZNdH9zEwtoYWsepgqu1h0QGyRXw== Sender: linux-watchdog-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The lpc32xx_loopback_set() function in hte lpc32xx_hs driver is the one thing that relies on platform header files. Move that into the core platform code so we only need a variable declaration for it, and enable COMPILE_TEST building. Signed-off-by: Arnd Bergmann Acked-by: Greg Kroah-Hartman --- arch/arm/mach-lpc32xx/serial.c | 30 ++++++++++++++++++++++++ drivers/tty/serial/lpc32xx_hs.c | 35 ++++------------------------ include/linux/soc/nxp/lpc32xx-misc.h | 4 ++++ 3 files changed, 38 insertions(+), 31 deletions(-) diff --git a/arch/arm/mach-lpc32xx/serial.c b/arch/arm/mach-lpc32xx/serial.c index 3f9b30df9f0e..cfb35e5691cd 100644 --- a/arch/arm/mach-lpc32xx/serial.c +++ b/arch/arm/mach-lpc32xx/serial.c @@ -60,6 +60,36 @@ static struct uartinit uartinit_data[] __initdata = { }, }; +/* LPC3250 Errata HSUART.1: Hang workaround via loopback mode on inactivity */ +void lpc32xx_loopback_set(resource_size_t mapbase, int state) +{ + int bit; + u32 tmp; + + switch (mapbase) { + case LPC32XX_HS_UART1_BASE: + bit = 0; + break; + case LPC32XX_HS_UART2_BASE: + bit = 1; + break; + case LPC32XX_HS_UART7_BASE: + bit = 6; + break; + default: + WARN(1, "lpc32xx_hs: Warning: Unknown port at %08x\n", mapbase); + return; + } + + tmp = readl(LPC32XX_UARTCTL_CLOOP); + if (state) + tmp |= (1 << bit); + else + tmp &= ~(1 << bit); + writel(tmp, LPC32XX_UARTCTL_CLOOP); +} +EXPORT_SYMBOL_GPL(lpc32xx_loopback_set); + void __init lpc32xx_serial_init(void) { u32 tmp, clkmodes = 0; diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c index 7f14cd8fac47..d3843f722182 100644 --- a/drivers/tty/serial/lpc32xx_hs.c +++ b/drivers/tty/serial/lpc32xx_hs.c @@ -25,6 +25,8 @@ #include #include #include +#include +#include /* * High Speed UART register offsets @@ -79,6 +81,8 @@ #define LPC32XX_HSU_TX_TL8B (0x2 << 0) #define LPC32XX_HSU_TX_TL16B (0x3 << 0) +#define LPC32XX_MAIN_OSC_FREQ 13000000 + #define MODNAME "lpc32xx_hsuart" struct lpc32xx_hsuart_port { @@ -149,8 +153,6 @@ static void lpc32xx_hsuart_console_write(struct console *co, const char *s, local_irq_restore(flags); } -static void lpc32xx_loopback_set(resource_size_t mapbase, int state); - static int __init lpc32xx_hsuart_console_setup(struct console *co, char *options) { @@ -437,35 +439,6 @@ static void serial_lpc32xx_break_ctl(struct uart_port *port, spin_unlock_irqrestore(&port->lock, flags); } -/* LPC3250 Errata HSUART.1: Hang workaround via loopback mode on inactivity */ -static void lpc32xx_loopback_set(resource_size_t mapbase, int state) -{ - int bit; - u32 tmp; - - switch (mapbase) { - case LPC32XX_HS_UART1_BASE: - bit = 0; - break; - case LPC32XX_HS_UART2_BASE: - bit = 1; - break; - case LPC32XX_HS_UART7_BASE: - bit = 6; - break; - default: - WARN(1, "lpc32xx_hs: Warning: Unknown port at %08x\n", mapbase); - return; - } - - tmp = readl(LPC32XX_UARTCTL_CLOOP); - if (state) - tmp |= (1 << bit); - else - tmp &= ~(1 << bit); - writel(tmp, LPC32XX_UARTCTL_CLOOP); -} - /* port->lock is not held. */ static int serial_lpc32xx_startup(struct uart_port *port) { diff --git a/include/linux/soc/nxp/lpc32xx-misc.h b/include/linux/soc/nxp/lpc32xx-misc.h index af4f82f6cf3b..699c6f1e3aab 100644 --- a/include/linux/soc/nxp/lpc32xx-misc.h +++ b/include/linux/soc/nxp/lpc32xx-misc.h @@ -14,6 +14,7 @@ #ifdef CONFIG_ARCH_LPC32XX extern u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaaddr); extern void lpc32xx_set_phy_interface_mode(phy_interface_t mode); +extern void lpc32xx_loopback_set(resource_size_t mapbase, int state); #else static inline u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaaddr) { @@ -24,6 +25,9 @@ static inline u32 lpc32xx_return_iram(void __iomem **mapbase, dma_addr_t *dmaadd static inline void lpc32xx_set_phy_interface_mode(phy_interface_t mode) { } +static inline void lpc32xx_loopback_set(resource_size_t mapbase, int state) +{ +} #endif #endif /* __SOC_LPC32XX_MISC_H */