Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753132Ab0LCPhS (ORCPT ); Fri, 3 Dec 2010 10:37:18 -0500 Received: from eu1sys200aog106.obsmtp.com ([207.126.144.121]:54006 "EHLO eu1sys200aog106.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752655Ab0LCPhO (ORCPT ); Fri, 3 Dec 2010 10:37:14 -0500 From: Sundar Iyer To: , , , Cc: , , Sundar Iyer Subject: [PATCH 09/20] mfd/tc3589x: add block identifier for multiple child devices Date: Fri, 3 Dec 2010 20:35:42 +0530 Message-ID: <1291388753-14662-10-git-send-email-sundar.iyer@stericsson.com> X-Mailer: git-send-email 1.7.2.dirty In-Reply-To: <1291388753-14662-1-git-send-email-sundar.iyer@stericsson.com> References: <1291388753-14662-1-git-send-email-sundar.iyer@stericsson.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3470 Lines: 113 Add block identifier to be able to add multiple mfd clients to the mfd core Signed-off-by: Sundar Iyer --- arch/arm/mach-ux500/board-mop500.c | 1 + drivers/mfd/tc3589x.c | 28 +++++++++++++++++++++++----- include/linux/mfd/tc3589x.h | 7 +++++++ 3 files changed, 31 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 6aaf382..703840b 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -123,6 +123,7 @@ static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = { }; static struct tc3589x_platform_data mop500_tc35892_data = { + .block = TC3589x_BLOCK_GPIO, .gpio = &mop500_tc35892_gpio_data, .irq_base = MOP500_EGPIO_IRQ_BASE, }; diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c index 7deff53..0ed9669 100644 --- a/drivers/mfd/tc3589x.c +++ b/drivers/mfd/tc3589x.c @@ -129,7 +129,7 @@ static struct resource gpio_resources[] = { }, }; -static struct mfd_cell tc3589x_devs[] = { +static struct mfd_cell tc3589x_dev_gpio[] = { { .name = "tc3589x-gpio", .num_resources = ARRAY_SIZE(gpio_resources), @@ -240,6 +240,26 @@ static int tc3589x_chip_init(struct tc3589x *tc3589x) return tc3589x_reg_write(tc3589x, TC3589x_RSTINTCLR, 0x1); } +static int __devinit tc3589x_device_init(struct tc3589x *tc3589x) +{ + int ret = 0; + unsigned int blocks = tc3589x->pdata->block; + + if (blocks & TC3589x_BLOCK_GPIO) { + ret = mfd_add_devices(tc3589x->dev, -1, tc3589x_dev_gpio, + ARRAY_SIZE(tc3589x_dev_gpio), NULL, + tc3589x->irq_base); + if (ret) { + dev_err(tc3589x->dev, "failed to add gpio child\n"); + return ret; + } + dev_info(tc3589x->dev, "added gpio block\n"); + } + + return ret; + +} + static int __devinit tc3589x_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { @@ -281,11 +301,9 @@ static int __devinit tc3589x_probe(struct i2c_client *i2c, goto out_removeirq; } - ret = mfd_add_devices(tc3589x->dev, -1, tc3589x_devs, - ARRAY_SIZE(tc3589x_devs), NULL, - tc3589x->irq_base); + ret = tc3589x_device_init(tc3589x); if (ret) { - dev_err(tc3589x->dev, "failed to add children\n"); + dev_err(tc3589x->dev, "failed to add child devices\n"); goto out_freeirq; } diff --git a/include/linux/mfd/tc3589x.h b/include/linux/mfd/tc3589x.h index ea19188..da00958 100644 --- a/include/linux/mfd/tc3589x.h +++ b/include/linux/mfd/tc3589x.h @@ -9,6 +9,11 @@ #include +enum tx3589x_block { + TC3589x_BLOCK_GPIO = 1 << 0, + TC3589x_BLOCK_KEYPAD = 1 << 1, +}; + #define TC3589x_RSTCTRL_IRQRST (1 << 4) #define TC3589x_RSTCTRL_TIMRST (1 << 3) #define TC3589x_RSTCTRL_ROTRST (1 << 2) @@ -122,10 +127,12 @@ struct tc3589x_gpio_platform_data { /** * struct tc3589x_platform_data - TC3589x platform data + * @block: bitmask of blocks to enable (use TC3589x_BLOCK_*) * @irq_base: base IRQ number. %TC3589x_NR_IRQS irqs will be used. * @gpio: GPIO-specific platform data */ struct tc3589x_platform_data { + unsigned int block; int irq_base; struct tc3589x_gpio_platform_data *gpio; }; -- 1.7.2.dirty -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/