[6/6] ARM: sa1100/neponset: convert serial to use gpiod APIs

Message ID	E1beLKT-0001U1-HK@rmk-PC.armlinux.org.uk (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org> In-Reply-To: <20160829120531.GG1041@n2100.armlinux.org.uk> References: <20160829120531.GG1041@n2100.armlinux.org.uk> From: Russell King <rmk+kernel@armlinux.org.uk> To: linux-arm-kernel@lists.infradead.org,linux-serial@vger.kernel.org Subject: [PATCH 6/6] ARM: sa1100/neponset: convert serial to use gpiod APIs MIME-Version: 1.0 Content-Disposition: inline Message-Id: <E1beLKT-0001U1-HK@rmk-PC.armlinux.org.uk> Date: Mon, 29 Aug 2016 13:06:17 +0100 Precedence: list Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Jiri Slaby <jslaby@suse.com> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org

diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c index 790d8da233da..bff6efdfaeaf 100644 --- a/arch/arm/mach-sa1100/neponset.c +++ b/arch/arm/mach-sa1100/neponset.c @@ -10,7 +10,6 @@ #include <linux/irq.h> #include <linux/kernel.h> #include <linux/module.h> -#include <linux/platform_data/sa11x0-serial.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/serial_core.h> @@ -48,23 +47,8 @@ #define IRR_SA1111 (1 << 2) #define NCR_NGPIO 7 - -#define MDM_CTL0_RTS1 (1 << 0) -#define MDM_CTL0_DTR1 (1 << 1) -#define MDM_CTL0_RTS2 (1 << 2) -#define MDM_CTL0_DTR2 (1 << 3) #define MDM_CTL0_NGPIO 4 - -#define MDM_CTL1_CTS1 (1 << 0) -#define MDM_CTL1_DSR1 (1 << 1) -#define MDM_CTL1_DCD1 (1 << 2) -#define MDM_CTL1_CTS2 (1 << 3) -#define MDM_CTL1_DSR2 (1 << 4) -#define MDM_CTL1_DCD2 (1 << 5) #define MDM_CTL1_NGPIO 6 - -#define AUD_SEL_1341 (1 << 0) -#define AUD_MUTE_1341 (1 << 1) #define AUD_NGPIO 2 extern void sa1110_mb_disable(void); @@ -96,6 +80,30 @@ struct neponset_drvdata { struct gpio_chip *gpio[4]; }; +static struct gpiod_lookup_table neponset_uart1_gpio_table = { + .dev_id = "sa11x0-uart.1", + .table = { + GPIO_LOOKUP("neponset-mdm-ctl0", 2, "rts", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl0", 3, "dtr", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl1", 3, "cts", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl1", 4, "dsr", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl1", 5, "dcd", GPIO_ACTIVE_LOW), + { }, + }, +}; + +static struct gpiod_lookup_table neponset_uart3_gpio_table = { + .dev_id = "sa11x0-uart.3", + .table = { + GPIO_LOOKUP("neponset-mdm-ctl0", 0, "rts", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl0", 1, "dtr", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl1", 0, "cts", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl1", 1, "dsr", GPIO_ACTIVE_LOW), + GPIO_LOOKUP("neponset-mdm-ctl1", 2, "dcd", GPIO_ACTIVE_LOW), + { }, + }, +}; + static struct gpiod_lookup_table neponset_pcmcia_table = { .dev_id = "1800", .table = { @@ -123,69 +131,6 @@ void neponset_ncr_frob(unsigned int mask, unsigned int val) } EXPORT_SYMBOL(neponset_ncr_frob); -static void neponset_set_mctrl(struct uart_port *port, u_int mctrl) -{ - struct neponset_drvdata *n = nep; - unsigned long mask, val = 0; - - if (!n) - return; - - if (port->mapbase == _Ser1UTCR0) { - mask = MDM_CTL0_RTS2 | MDM_CTL0_DTR2; - - if (!(mctrl & TIOCM_RTS)) - val |= MDM_CTL0_RTS2; - - if (!(mctrl & TIOCM_DTR)) - val |= MDM_CTL0_DTR2; - } else if (port->mapbase == _Ser3UTCR0) { - mask = MDM_CTL0_RTS1 | MDM_CTL0_DTR1; - - if (!(mctrl & TIOCM_RTS)) - val |= MDM_CTL0_RTS1; - - if (!(mctrl & TIOCM_DTR)) - val |= MDM_CTL0_DTR1; - } - - n->gpio[1]->set_multiple(n->gpio[1], &mask, &val); -} - -static u_int neponset_get_mctrl(struct uart_port *port) -{ - void __iomem *base = nep->base; - u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR; - u_int mdm_ctl1; - - if (!base) - return ret; - - mdm_ctl1 = readb_relaxed(base + MDM_CTL_1); - if (port->mapbase == _Ser1UTCR0) { - if (mdm_ctl1 & MDM_CTL1_DCD2) - ret &= ~TIOCM_CD; - if (mdm_ctl1 & MDM_CTL1_CTS2) - ret &= ~TIOCM_CTS; - if (mdm_ctl1 & MDM_CTL1_DSR2) - ret &= ~TIOCM_DSR; - } else if (port->mapbase == _Ser3UTCR0) { - if (mdm_ctl1 & MDM_CTL1_DCD1) - ret &= ~TIOCM_CD; - if (mdm_ctl1 & MDM_CTL1_CTS1) - ret &= ~TIOCM_CTS; - if (mdm_ctl1 & MDM_CTL1_DSR1) - ret &= ~TIOCM_DSR; - } - - return ret; -} - -static struct sa1100_port_fns neponset_port_fns = { - .set_mctrl = neponset_set_mctrl, - .get_mctrl = neponset_get_mctrl, -}; - /* * Install handler for Neponset IRQ. Note that we have to loop here * since the ETHERNET and USAR IRQs are level based, and we need to @@ -384,6 +329,8 @@ static int neponset_probe(struct platform_device *dev) d->base + AUD_CTL, AUD_NGPIO, false, neponset_aud_names); + gpiod_add_lookup_table(&neponset_uart1_gpio_table); + gpiod_add_lookup_table(&neponset_uart3_gpio_table); gpiod_add_lookup_table(&neponset_pcmcia_table); /* @@ -398,8 +345,6 @@ static int neponset_probe(struct platform_device *dev) d->irq_base, d->irq_base + NEP_IRQ_NR - 1); nep = d; - sa1100_register_uart_fns(&neponset_port_fns); - /* Ensure that the memory bus request/grant signals are setup */ sa1110_mb_disable(); @@ -441,6 +386,8 @@ static int neponset_remove(struct platform_device *dev) platform_device_unregister(d->smc91x); gpiod_remove_lookup_table(&neponset_pcmcia_table); + gpiod_remove_lookup_table(&neponset_uart3_gpio_table); + gpiod_remove_lookup_table(&neponset_uart1_gpio_table); irq_set_chained_handler(irq, NULL); irq_free_descs(d->irq_base, NEP_IRQ_NR);

[6/6] ARM: sa1100/neponset: convert serial to use gpiod APIs

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