From patchwork Thu Apr 21 20:35:24 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Hilman X-Patchwork-Id: 725681 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p3LKXYGS017102 for ; Thu, 21 Apr 2011 20:34:14 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754550Ab1DUUdu (ORCPT ); Thu, 21 Apr 2011 16:33:50 -0400 Received: from na3sys009aog108.obsmtp.com ([74.125.149.199]:40801 "EHLO na3sys009aog108.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754394Ab1DUUds (ORCPT ); Thu, 21 Apr 2011 16:33:48 -0400 Received: from mail-pv0-f180.google.com ([74.125.83.180]) (using TLSv1) by na3sys009aob108.postini.com ([74.125.148.12]) with SMTP ID DSNKTbCUpRsGCIj3m0lZTObU4IlcZisqVUIm@postini.com; Thu, 21 Apr 2011 13:33:48 PDT Received: by mail-pv0-f180.google.com with SMTP id 21so187766pvc.25 for ; Thu, 21 Apr 2011 13:33:41 -0700 (PDT) Received: by 10.68.60.227 with SMTP id k3mr509029pbr.75.1303418021101; Thu, 21 Apr 2011 13:33:41 -0700 (PDT) Received: from localhost (c-24-18-179-55.hsd1.wa.comcast.net [24.18.179.55]) by mx.google.com with ESMTPS id g4sm1512063pbt.78.2011.04.21.13.33.39 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 21 Apr 2011 13:33:40 -0700 (PDT) From: Kevin Hilman To: linux-omap@vger.kernel.org Cc: charu@ti.com Subject: [PATCH 6/9] OMAP: GPIO: consolidate direction, input, output, remove #ifdefs Date: Thu, 21 Apr 2011 13:35:24 -0700 Message-Id: <1303418127-4310-7-git-send-email-khilman@ti.com> X-Mailer: git-send-email 1.7.4 In-Reply-To: <1303418127-4310-1-git-send-email-khilman@ti.com> References: <1303418127-4310-1-git-send-email-khilman@ti.com> 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 (demeter1.kernel.org [140.211.167.41]); Thu, 21 Apr 2011 20:34:14 +0000 (UTC) Add register offset fields to GPIO platform_data for registers that control direction, input and output data. Using these register offsets in the common driver allows removal of #ifdefs and greatly improves readability. Signed-off-by: Kevin Hilman --- arch/arm/mach-omap1/gpio15xx.c | 7 + arch/arm/mach-omap1/gpio16xx.c | 15 ++ arch/arm/mach-omap1/gpio7xx.c | 15 ++ arch/arm/mach-omap2/gpio.c | 10 ++ arch/arm/plat-omap/gpio.c | 228 +++++--------------------------- arch/arm/plat-omap/include/plat/gpio.h | 9 ++ 6 files changed, 92 insertions(+), 192 deletions(-) diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c index 04c4b04..706015b 100644 --- a/arch/arm/mach-omap1/gpio15xx.c +++ b/arch/arm/mach-omap1/gpio15xx.c @@ -39,6 +39,10 @@ static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = { .bank_type = METHOD_MPUIO, .bank_width = 16, .bank_stride = 1, + .direction_reg = OMAP_MPUIO_IO_CNTL, + .set_dataout_reg = OMAP_MPUIO_OUTPUT, + .datain_reg = OMAP_MPUIO_INPUT_LATCH, + .dataout_reg = OMAP_MPUIO_OUTPUT, }; static struct __initdata platform_device omap15xx_mpu_gpio = { @@ -68,6 +72,9 @@ static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = { .virtual_irq_start = IH_GPIO_BASE, .bank_type = METHOD_GPIO_1510, .bank_width = 16, + .direction_reg = OMAP1510_GPIO_DIR_CONTROL, + .datain_reg = OMAP1510_GPIO_DATA_INPUT, + .dataout_reg = OMAP1510_GPIO_DATA_OUTPUT, }; static struct __initdata platform_device omap15xx_gpio = { diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c index 5dd0d4c..9573b5e 100644 --- a/arch/arm/mach-omap1/gpio16xx.c +++ b/arch/arm/mach-omap1/gpio16xx.c @@ -42,6 +42,10 @@ static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = { .bank_type = METHOD_MPUIO, .bank_width = 16, .bank_stride = 1, + .direction_reg = OMAP_MPUIO_IO_CNTL, + .set_dataout_reg = OMAP_MPUIO_OUTPUT, + .datain_reg = OMAP_MPUIO_INPUT_LATCH, + .dataout_reg = OMAP_MPUIO_OUTPUT, }; static struct __initdata platform_device omap16xx_mpu_gpio = { @@ -67,10 +71,18 @@ static struct __initdata resource omap16xx_gpio1_resources[] = { }, }; +#define OMAP16XX_GPIO_REG_OFFSETS \ + .direction_reg = OMAP1610_GPIO_DIRECTION, \ + .set_dataout_reg = OMAP1610_GPIO_SET_DATAOUT, \ + .clr_dataout_reg = OMAP1610_GPIO_CLEAR_DATAOUT, \ + .datain_reg = OMAP1610_GPIO_DATAIN, \ + .dataout_reg = OMAP1610_GPIO_DATAOUT + static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = { .virtual_irq_start = IH_GPIO_BASE, .bank_type = METHOD_GPIO_1610, .bank_width = 16, + OMAP16XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap16xx_gpio1 = { @@ -100,6 +112,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = { .virtual_irq_start = IH_GPIO_BASE + 16, .bank_type = METHOD_GPIO_1610, .bank_width = 16, + OMAP16XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap16xx_gpio2 = { @@ -129,6 +142,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = { .virtual_irq_start = IH_GPIO_BASE + 32, .bank_type = METHOD_GPIO_1610, .bank_width = 16, + OMAP16XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap16xx_gpio3 = { @@ -158,6 +172,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = { .virtual_irq_start = IH_GPIO_BASE + 48, .bank_type = METHOD_GPIO_1610, .bank_width = 16, + OMAP16XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap16xx_gpio4 = { diff --git a/arch/arm/mach-omap1/gpio7xx.c b/arch/arm/mach-omap1/gpio7xx.c index 1204c8b..59c6e3dbf 100644 --- a/arch/arm/mach-omap1/gpio7xx.c +++ b/arch/arm/mach-omap1/gpio7xx.c @@ -44,6 +44,10 @@ static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = { .bank_type = METHOD_MPUIO, .bank_width = 32, .bank_stride = 2, + .direction_reg = OMAP_MPUIO_IO_CNTL / 2, + .set_dataout_reg = OMAP_MPUIO_OUTPUT / 2, + .datain_reg = OMAP_MPUIO_INPUT_LATCH / 2, + .dataout_reg = OMAP_MPUIO_OUTPUT / 2, }; static struct __initdata platform_device omap7xx_mpu_gpio = { @@ -69,10 +73,16 @@ static struct __initdata resource omap7xx_gpio1_resources[] = { }, }; +#define OMAP7XX_GPIO_REG_OFFSETS \ + .direction_reg = OMAP7XX_GPIO_DIR_CONTROL, \ + .datain_reg = OMAP7XX_GPIO_DATA_INPUT, \ + .dataout_reg = OMAP7XX_GPIO_DATA_OUTPUT + static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = { .virtual_irq_start = IH_GPIO_BASE, .bank_type = METHOD_GPIO_7XX, .bank_width = 32, + OMAP7XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap7xx_gpio1 = { @@ -102,6 +112,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = { .virtual_irq_start = IH_GPIO_BASE + 32, .bank_type = METHOD_GPIO_7XX, .bank_width = 32, + OMAP7XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap7xx_gpio2 = { @@ -131,6 +142,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = { .virtual_irq_start = IH_GPIO_BASE + 64, .bank_type = METHOD_GPIO_7XX, .bank_width = 32, + OMAP7XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap7xx_gpio3 = { @@ -160,6 +172,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = { .virtual_irq_start = IH_GPIO_BASE + 96, .bank_type = METHOD_GPIO_7XX, .bank_width = 32, + OMAP7XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap7xx_gpio4 = { @@ -189,6 +202,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = { .virtual_irq_start = IH_GPIO_BASE + 128, .bank_type = METHOD_GPIO_7XX, .bank_width = 32, + OMAP7XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap7xx_gpio5 = { @@ -218,6 +232,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = { .virtual_irq_start = IH_GPIO_BASE + 160, .bank_type = METHOD_GPIO_7XX, .bank_width = 32, + OMAP7XX_GPIO_REG_OFFSETS, }; static struct __initdata platform_device omap7xx_gpio6 = { diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c index 9529842..cc63188 100644 --- a/arch/arm/mach-omap2/gpio.c +++ b/arch/arm/mach-omap2/gpio.c @@ -65,9 +65,19 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused) case 0: case 1: pdata->bank_type = METHOD_GPIO_24XX; + pdata->direction_reg = OMAP24XX_GPIO_OE; + pdata->datain_reg = OMAP24XX_GPIO_DATAIN; + pdata->dataout_reg = OMAP24XX_GPIO_DATAOUT; + pdata->set_dataout_reg = OMAP24XX_GPIO_SETDATAOUT; + pdata->clr_dataout_reg = OMAP24XX_GPIO_CLEARDATAOUT; break; case 2: pdata->bank_type = METHOD_GPIO_44XX; + pdata->direction_reg = OMAP4_GPIO_OE; + pdata->datain_reg = OMAP4_GPIO_DATAIN; + pdata->dataout_reg = OMAP4_GPIO_DATAOUT; + pdata->set_dataout_reg = OMAP4_GPIO_SETDATAOUT; + pdata->clr_dataout_reg = OMAP4_GPIO_CLEARDATAOUT; break; default: WARN(1, "Invalid gpio bank_type\n"); diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c index 274e4a5..8f94488 100644 --- a/arch/arm/plat-omap/gpio.c +++ b/arch/arm/plat-omap/gpio.c @@ -57,6 +57,15 @@ struct gpio_bank { bool dbck_flag; int stride; u32 width; + + /* SoC-specific register offsets (required) */ + u16 direction_reg; + u16 datain_reg; + u16 dataout_reg; + + /* SoC-specific register offsets (optional) */ + u16 set_dataout_reg; + u16 clr_dataout_reg; }; #ifdef CONFIG_ARCH_OMAP3 @@ -160,41 +169,7 @@ static void _set_gpio_direction(struct gpio_bank *bank, int gpio, int is_input) void __iomem *reg = bank->base; u32 l; - switch (bank->method) { -#ifdef CONFIG_ARCH_OMAP1 - case METHOD_MPUIO: - reg += OMAP_MPUIO_IO_CNTL / bank->stride; - break; -#endif -#ifdef CONFIG_ARCH_OMAP15XX - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_DIR_CONTROL; - break; -#endif -#ifdef CONFIG_ARCH_OMAP16XX - case METHOD_GPIO_1610: - reg += OMAP1610_GPIO_DIRECTION; - break; -#endif -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) - case METHOD_GPIO_7XX: - reg += OMAP7XX_GPIO_DIR_CONTROL; - break; -#endif -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - case METHOD_GPIO_24XX: - reg += OMAP24XX_GPIO_OE; - break; -#endif -#if defined(CONFIG_ARCH_OMAP4) - case METHOD_GPIO_44XX: - reg += OMAP4_GPIO_OE; - break; -#endif - default: - WARN_ON(1); - return; - } + reg += bank->direction_reg; l = __raw_readl(reg); if (is_input) l |= 1 << gpio; @@ -208,113 +183,34 @@ static void _set_gpio_dataout(struct gpio_bank *bank, int gpio, int enable) void __iomem *reg = bank->base; u32 l = 0; - switch (bank->method) { -#ifdef CONFIG_ARCH_OMAP1 - case METHOD_MPUIO: - reg += OMAP_MPUIO_OUTPUT / bank->stride; - l = __raw_readl(reg); - if (enable) - l |= 1 << gpio; - else - l &= ~(1 << gpio); - break; -#endif -#ifdef CONFIG_ARCH_OMAP15XX - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_DATA_OUTPUT; - l = __raw_readl(reg); - if (enable) - l |= 1 << gpio; - else - l &= ~(1 << gpio); - break; -#endif -#ifdef CONFIG_ARCH_OMAP16XX - case METHOD_GPIO_1610: - if (enable) - reg += OMAP1610_GPIO_SET_DATAOUT; - else - reg += OMAP1610_GPIO_CLEAR_DATAOUT; - l = 1 << gpio; - break; -#endif -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) - case METHOD_GPIO_7XX: - reg += OMAP7XX_GPIO_DATA_OUTPUT; - l = __raw_readl(reg); - if (enable) - l |= 1 << gpio; - else + if (enable) { + if (bank->set_dataout_reg) { + reg += bank->set_dataout_reg; + } else { + reg += bank->dataout_reg; + l = __raw_readl(reg); + } + l |= 1 << gpio; + } else { + if (bank->clr_dataout_reg) { + reg += bank->clr_dataout_reg; + l = 1 << gpio; + } else { + reg += bank->dataout_reg; + l = __raw_readl(reg); l &= ~(1 << gpio); - break; -#endif -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - case METHOD_GPIO_24XX: - if (enable) - reg += OMAP24XX_GPIO_SETDATAOUT; - else - reg += OMAP24XX_GPIO_CLEARDATAOUT; - l = 1 << gpio; - break; -#endif -#ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_44XX: - if (enable) - reg += OMAP4_GPIO_SETDATAOUT; - else - reg += OMAP4_GPIO_CLEARDATAOUT; - l = 1 << gpio; - break; -#endif - default: - WARN_ON(1); - return; + } } + __raw_writel(l, reg); } static int _get_gpio_datain(struct gpio_bank *bank, int gpio) { - void __iomem *reg; - if (check_gpio(gpio) < 0) return -EINVAL; - reg = bank->base; - switch (bank->method) { -#ifdef CONFIG_ARCH_OMAP1 - case METHOD_MPUIO: - reg += OMAP_MPUIO_INPUT_LATCH / bank->stride; - break; -#endif -#ifdef CONFIG_ARCH_OMAP15XX - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_DATA_INPUT; - break; -#endif -#ifdef CONFIG_ARCH_OMAP16XX - case METHOD_GPIO_1610: - reg += OMAP1610_GPIO_DATAIN; - break; -#endif -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) - case METHOD_GPIO_7XX: - reg += OMAP7XX_GPIO_DATA_INPUT; - break; -#endif -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - case METHOD_GPIO_24XX: - reg += OMAP24XX_GPIO_DATAIN; - break; -#endif -#ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_44XX: - reg += OMAP4_GPIO_DATAIN; - break; -#endif - default: - return -EINVAL; - } - return (__raw_readl(reg) + + return (__raw_readl(bank->base + bank->datain_reg) & (1 << get_gpio_index(gpio))) != 0; } @@ -324,42 +220,8 @@ static int _get_gpio_dataout(struct gpio_bank *bank, int gpio) if (check_gpio(gpio) < 0) return -EINVAL; - reg = bank->base; - switch (bank->method) { -#ifdef CONFIG_ARCH_OMAP1 - case METHOD_MPUIO: - reg += OMAP_MPUIO_OUTPUT / bank->stride; - break; -#endif -#ifdef CONFIG_ARCH_OMAP15XX - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_DATA_OUTPUT; - break; -#endif -#ifdef CONFIG_ARCH_OMAP16XX - case METHOD_GPIO_1610: - reg += OMAP1610_GPIO_DATAOUT; - break; -#endif -#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850) - case METHOD_GPIO_7XX: - reg += OMAP7XX_GPIO_DATA_OUTPUT; - break; -#endif -#if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) - case METHOD_GPIO_24XX: - reg += OMAP24XX_GPIO_DATAOUT; - break; -#endif -#ifdef CONFIG_ARCH_OMAP4 - case METHOD_GPIO_44XX: - reg += OMAP4_GPIO_DATAOUT; - break; -#endif - default: - return -EINVAL; - } + reg = bank->base + bank->dataout_reg; return (__raw_readl(reg) & (1 << get_gpio_index(gpio))) != 0; } @@ -1316,31 +1178,8 @@ static int gpio_input(struct gpio_chip *chip, unsigned offset) static int gpio_is_input(struct gpio_bank *bank, int mask) { - void __iomem *reg = bank->base; + void __iomem *reg = bank->base + bank->direction_reg; - switch (bank->method) { - case METHOD_MPUIO: - reg += OMAP_MPUIO_IO_CNTL / bank->stride; - break; - case METHOD_GPIO_1510: - reg += OMAP1510_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_1610: - reg += OMAP1610_GPIO_DIRECTION; - break; - case METHOD_GPIO_7XX: - reg += OMAP7XX_GPIO_DIR_CONTROL; - break; - case METHOD_GPIO_24XX: - reg += OMAP24XX_GPIO_OE; - break; - case METHOD_GPIO_44XX: - reg += OMAP4_GPIO_OE; - break; - default: - WARN_ONCE(1, "gpio_is_input: incorrect OMAP GPIO method"); - return -EINVAL; - } return __raw_readl(reg) & mask; } @@ -1598,6 +1437,11 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev) bank->dbck_flag = pdata->dbck_flag; bank->stride = pdata->bank_stride; bank->width = pdata->bank_width; + bank->direction_reg = pdata->direction_reg; + bank->datain_reg = pdata->datain_reg; + bank->dataout_reg = pdata->dataout_reg; + bank->set_dataout_reg = pdata->dataout_reg; + bank->set_dataout_reg = pdata->dataout_reg; spin_lock_init(&bank->lock); diff --git a/arch/arm/plat-omap/include/plat/gpio.h b/arch/arm/plat-omap/include/plat/gpio.h index ec97e00..bbf9a5f 100644 --- a/arch/arm/plat-omap/include/plat/gpio.h +++ b/arch/arm/plat-omap/include/plat/gpio.h @@ -180,6 +180,15 @@ struct omap_gpio_platform_data { int bank_width; /* GPIO bank width */ int bank_stride; /* Only needed for omap1 MPUIO */ bool dbck_flag; /* dbck required or not - True for OMAP3&4 */ + + /* SoC-specific register offsets (required) */ + u16 direction_reg; + u16 datain_reg; + u16 dataout_reg; + + /* SoC-specific register offsets (optional) */ + u16 set_dataout_reg; + u16 clr_dataout_reg; }; /* TODO: Analyze removing gpio_bank_count usage from driver code */