From patchwork Tue May 24 14:24:52 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tarun Kanti DebBarma X-Patchwork-Id: 812032 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter2.kernel.org (8.14.4/8.14.3) with ESMTP id p4OEPGQi010896 for ; Tue, 24 May 2011 14:25:16 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756669Ab1EXOZP (ORCPT ); Tue, 24 May 2011 10:25:15 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:43523 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756092Ab1EXOZO (ORCPT ); Tue, 24 May 2011 10:25:14 -0400 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id p4OEP1Y9000695 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Tue, 24 May 2011 09:25:03 -0500 Received: from dbde71.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id p4OEP09t028561; Tue, 24 May 2011 19:55:00 +0530 (IST) Received: from dbdp31.itg.ti.com (172.24.170.98) by DBDE71.ent.ti.com (172.24.170.149) with Microsoft SMTP Server id 8.3.106.1; Tue, 24 May 2011 19:55:00 +0530 Received: from localhost.localdomain ([172.24.190.106]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id p4OEOsqI004036; Tue, 24 May 2011 19:55:00 +0530 (IST) From: Tarun Kanti DebBarma To: CC: , , , , Charulatha V , Tarun Kanti DebBarma Subject: [PATCH 13/15] OMAP: GPIO: clean set_gpio_triggering function Date: Tue, 24 May 2011 19:54:52 +0530 Message-ID: <1306247094-25372-14-git-send-email-tarun.kanti@ti.com> X-Mailer: git-send-email 1.6.0.4 In-Reply-To: <1306247094-25372-1-git-send-email-tarun.kanti@ti.com> References: <1306247094-25372-1-git-send-email-tarun.kanti@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Tue, 24 May 2011 14:25:16 +0000 (UTC) From: Charulatha V Getting rid of ifdefs within the function by adding register offset intctrl and associating OMAPXXXX_GPIO_INT_CONTROL in respective SoC specific files. Signed-off-by: Charulatha V Signed-off-by: Tarun Kanti DebBarma --- arch/arm/mach-omap1/gpio15xx.c | 14 ++++ arch/arm/mach-omap1/gpio16xx.c | 14 ++++ arch/arm/mach-omap1/gpio7xx.c | 14 ++++ arch/arm/mach-omap2/gpio.c | 4 + arch/arm/plat-omap/include/plat/gpio.h | 3 + drivers/gpio/gpio_omap.c | 125 +++++++------------------------- 6 files changed, 77 insertions(+), 97 deletions(-) diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c index b0bd21e..ceee046 100644 --- a/arch/arm/mach-omap1/gpio15xx.c +++ b/arch/arm/mach-omap1/gpio15xx.c @@ -46,6 +46,13 @@ static struct omap_gpio_reg_offs omap15xx_mpuio_regs = { .wkupstatus = USHRT_MAX, .wkupclear = USHRT_MAX, .wkupset = USHRT_MAX, + .irqctrl = OMAP_MPUIO_GPIO_INT_EDGE, + .edgectrl1 = USHRT_MAX, + .edgectrl2 = USHRT_MAX, + .leveldetect0 = USHRT_MAX, + .leveldetect1 = USHRT_MAX, + .risingdetect = USHRT_MAX, + .fallingdetect = USHRT_MAX, }; static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = { @@ -91,6 +98,13 @@ static struct omap_gpio_reg_offs omap15xx_gpio_regs = { .wkupstatus = USHRT_MAX, .wkupclear = USHRT_MAX, .wkupset = USHRT_MAX, + .irqctrl = OMAP1510_GPIO_INT_CONTROL, + .edgectrl1 = USHRT_MAX, + .edgectrl2 = USHRT_MAX, + .leveldetect0 = USHRT_MAX, + .leveldetect1 = USHRT_MAX, + .risingdetect = USHRT_MAX, + .fallingdetect = USHRT_MAX, }; static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = { diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c index 403437b..b2479c5 100644 --- a/arch/arm/mach-omap1/gpio16xx.c +++ b/arch/arm/mach-omap1/gpio16xx.c @@ -49,6 +49,13 @@ static struct omap_gpio_reg_offs omap16xx_mpuio_regs = { .wkupstatus = USHRT_MAX, .wkupclear = USHRT_MAX, .wkupset = USHRT_MAX, + .irqctrl = OMAP_MPUIO_GPIO_INT_EDGE, + .edgectrl1 = USHRT_MAX, + .edgectrl2 = USHRT_MAX, + .leveldetect0 = USHRT_MAX, + .leveldetect1 = USHRT_MAX, + .risingdetect = USHRT_MAX, + .fallingdetect = USHRT_MAX, }; static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = { @@ -97,6 +104,13 @@ static struct omap_gpio_reg_offs omap16xx_gpio_regs = { .wkupstatus = OMAP1610_GPIO_WAKEUPENABLE, .wkupclear = OMAP1610_GPIO_CLEAR_WAKEUPENA, .wkupset = OMAP1610_GPIO_SET_WAKEUPENA, + .irqctrl = USHRT_MAX, + .edgectrl1 = OMAP1610_GPIO_EDGE_CTRL1, + .edgectrl2 = OMAP1610_GPIO_EDGE_CTRL2, + .leveldetect0 = USHRT_MAX, + .leveldetect1 = USHRT_MAX, + .risingdetect = USHRT_MAX, + .fallingdetect = USHRT_MAX, }; static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = { diff --git a/arch/arm/mach-omap1/gpio7xx.c b/arch/arm/mach-omap1/gpio7xx.c index d5a4aaf..ceac936 100644 --- a/arch/arm/mach-omap1/gpio7xx.c +++ b/arch/arm/mach-omap1/gpio7xx.c @@ -51,6 +51,13 @@ static struct omap_gpio_reg_offs omap7xx_mpuio_regs = { .wkupstatus = USHRT_MAX, .wkupclear = USHRT_MAX, .wkupset = USHRT_MAX, + .irqctrl = OMAP_MPUIO_GPIO_INT_EDGE / 2, + .edgectrl1 = USHRT_MAX, + .edgectrl2 = USHRT_MAX, + .leveldetect0 = USHRT_MAX, + .leveldetect1 = USHRT_MAX, + .risingdetect = USHRT_MAX, + .fallingdetect = USHRT_MAX, }; static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = { @@ -96,6 +103,13 @@ static struct omap_gpio_reg_offs omap7xx_gpio_regs = { .wkupstatus = USHRT_MAX, .wkupclear = USHRT_MAX, .wkupset = USHRT_MAX, + .irqctrl = OMAP7XX_GPIO_INT_CONTROL, + .edgectrl1 = USHRT_MAX, + .edgectrl2 = USHRT_MAX, + .leveldetect0 = USHRT_MAX, + .leveldetect1 = USHRT_MAX, + .risingdetect = USHRT_MAX, + .fallingdetect = USHRT_MAX, }; static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = { diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c index fbedbbb..eda1846 100644 --- a/arch/arm/mach-omap2/gpio.c +++ b/arch/arm/mach-omap2/gpio.c @@ -92,6 +92,10 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused) return -ENOMEM; } + pdata->regs->irqctrl = USHRT_MAX; + pdata->regs->edgectrl1 = USHRT_MAX; + pdata->regs->edgectrl2 = USHRT_MAX; + switch (oh->class->rev) { case 0: case 1: diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h index a341790..f82881c 100644 --- a/arch/arm/plat-omap/include/plat/gpio.h +++ b/arch/arm/plat-omap/include/plat/gpio.h @@ -197,6 +197,9 @@ struct omap_gpio_reg_offs { u16 wkupstatus; u16 wkupclear; u16 wkupset; + u16 irqctrl; + u16 edgectrl1; + u16 edgectrl2; bool irqenable_inv; }; diff --git a/drivers/gpio/gpio_omap.c b/drivers/gpio/gpio_omap.c index 762d73c..ebeb16e 100644 --- a/drivers/gpio/gpio_omap.c +++ b/drivers/gpio/gpio_omap.c @@ -202,33 +202,20 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, __raw_writel(val, reg); } -#ifdef CONFIG_ARCH_OMAP2PLUS -static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, +static inline void set_gpio_trigger(struct gpio_bank *bank, int gpio, int trigger) { void __iomem *base = bank->base; u32 gpio_bit = 1 << gpio; - u32 val; - if (cpu_is_omap44xx()) { - MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT0, gpio_bit, + MOD_REG_BIT(bank->regs->leveldetect0, gpio_bit, trigger & IRQ_TYPE_LEVEL_LOW); - MOD_REG_BIT(OMAP4_GPIO_LEVELDETECT1, gpio_bit, + MOD_REG_BIT(bank->regs->leveldetect1, gpio_bit, trigger & IRQ_TYPE_LEVEL_HIGH); - MOD_REG_BIT(OMAP4_GPIO_RISINGDETECT, gpio_bit, + MOD_REG_BIT(bank->regs->risingdetect, gpio_bit, trigger & IRQ_TYPE_EDGE_RISING); - MOD_REG_BIT(OMAP4_GPIO_FALLINGDETECT, gpio_bit, + MOD_REG_BIT(bank->regs->fallingdetect, gpio_bit, trigger & IRQ_TYPE_EDGE_FALLING); - } else { - MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT0, gpio_bit, - trigger & IRQ_TYPE_LEVEL_LOW); - MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT1, gpio_bit, - trigger & IRQ_TYPE_LEVEL_HIGH); - MOD_REG_BIT(OMAP24XX_GPIO_RISINGDETECT, gpio_bit, - trigger & IRQ_TYPE_EDGE_RISING); - MOD_REG_BIT(OMAP24XX_GPIO_FALLINGDETECT, gpio_bit, - trigger & IRQ_TYPE_EDGE_FALLING); - } if (likely(!(bank->non_wakeup_gpios & gpio_bit))) { /* @@ -259,36 +246,16 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, __raw_readl(bank->base + bank->regs->leveldetect0) | __raw_readl(bank->base + bank->regs->leveldetect1); } -#endif -#ifdef CONFIG_ARCH_OMAP1 /* * This only applies to chips that can't do both rising and falling edge * detection at once. For all other chips, this function is a noop. */ static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio) { - void __iomem *reg = bank->base; + void __iomem *reg = bank->base + bank->regs->irqctrl; u32 l = 0; - switch (bank->method) { - case METHOD_MPUIO: - reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride; - break; -#ifdef CONFIG_ARCH_OMAP15XX - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_INT_CONTROL; - break; -#endif -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) - case METHOD_GPIO_7XX: - reg += OMAP7XX_GPIO_INT_CONTROL; - break; -#endif - default: - return; - } - l = __raw_readl(reg); if ((l >> gpio) & 1) l &= ~(1 << gpio); @@ -297,31 +264,18 @@ static void _toggle_gpio_edge_triggering(struct gpio_bank *bank, int gpio) __raw_writel(l, reg); } -#endif static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) { void __iomem *reg = bank->base; u32 l = 0; - switch (bank->method) { -#ifdef CONFIG_ARCH_OMAP1 - case METHOD_MPUIO: - reg += OMAP_MPUIO_GPIO_INT_EDGE / bank->stride; - l = __raw_readl(reg); - if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) - bank->toggle_mask |= 1 << gpio; - if (trigger & IRQ_TYPE_EDGE_RISING) - l |= 1 << gpio; - else if (trigger & IRQ_TYPE_EDGE_FALLING) - l &= ~(1 << gpio); - else - goto bad; - break; -#endif -#ifdef CONFIG_ARCH_OMAP15XX - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_INT_CONTROL; + if ((bank->regs->leveldetect0 != USHRT_MAX) && + (bank->regs->wkupstatus != USHRT_MAX)) { + set_gpio_trigger(bank, gpio, trigger); + } else if (bank->regs->irqctrl != USHRT_MAX) { + reg += bank->regs->irqctrl; + l = __raw_readl(reg); if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) bank->toggle_mask |= 1 << gpio; @@ -330,15 +284,16 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) else if (trigger & IRQ_TYPE_EDGE_FALLING) l &= ~(1 << gpio); else - goto bad; - break; -#endif -#ifdef CONFIG_ARCH_OMAP16XX - case METHOD_GPIO_1610: + return -EINVAL; + + __raw_writel(l, reg); + + } else if (bank->regs->edgectrl1 != USHRT_MAX) { if (gpio & 0x08) - reg += OMAP1610_GPIO_EDGE_CTRL2; + reg += bank->regs->edgectrl2; else - reg += OMAP1610_GPIO_EDGE_CTRL1; + reg += bank->regs->edgectrl1; + gpio &= 0x07; l = __raw_readl(reg); l &= ~(3 << (gpio << 1)); @@ -346,40 +301,17 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger) l |= 2 << (gpio << 1); if (trigger & IRQ_TYPE_EDGE_FALLING) l |= 1 << (gpio << 1); + if (trigger) /* Enable wake-up during idle for dynamic tick */ - __raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_SET_WAKEUPENA); - else - __raw_writel(1 << gpio, bank->base + OMAP1610_GPIO_CLEAR_WAKEUPENA); - break; -#endif -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) - case METHOD_GPIO_7XX: - reg += OMAP7XX_GPIO_INT_CONTROL; - l = __raw_readl(reg); - if ((trigger & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) - bank->toggle_mask |= 1 << gpio; - if (trigger & IRQ_TYPE_EDGE_RISING) - l |= 1 << gpio; - else if (trigger & IRQ_TYPE_EDGE_FALLING) - l &= ~(1 << gpio); + __raw_writel(1 << gpio, bank->wake_set); else - goto bad; - break; -#endif -#ifdef CONFIG_ARCH_OMAP2PLUS - case METHOD_GPIO_24XX: - case METHOD_GPIO_44XX: - set_24xx_gpio_triggering(bank, gpio, trigger); - return 0; -#endif - default: - goto bad; + __raw_writel(1 << gpio, bank->wake_clear); + + __raw_writel(l, reg); } - __raw_writel(l, reg); + return 0; -bad: - return -EINVAL; } static int gpio_irq_type(struct irq_data *d, unsigned type) @@ -678,7 +610,6 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) if (!(isr & 1)) continue; -#ifdef CONFIG_ARCH_OMAP1 /* * Some chips can't respond to both rising and falling * at the same time. If this irq was requested with @@ -686,9 +617,9 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) * to respond to the IRQ for the opposite direction. * This will be indicated in the bank toggle_mask. */ - if (bank->toggle_mask & (1 << gpio_index)) + if ((bank->regs->irqctrl != USHRT_MAX) && + (bank->toggle_mask & (1 << gpio_index))) _toggle_gpio_edge_triggering(bank, gpio_index); -#endif generic_handle_irq(gpio_irq); }