Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933087Ab2BBRi5 (ORCPT ); Thu, 2 Feb 2012 12:38:57 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:57648 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756896Ab2BBRbO (ORCPT ); Thu, 2 Feb 2012 12:31:14 -0500 From: Tarun Kanti DebBarma To: CC: , , , , , Nishanth Menon , Tarun Kanti DebBarma Subject: [PATCH v9 22/25] gpio/omap: save and restore debounce registers Date: Thu, 2 Feb 2012 23:00:48 +0530 Message-ID: <1328203851-20435-23-git-send-email-tarun.kanti@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1328203851-20435-1-git-send-email-tarun.kanti@ti.com> References: <1328203851-20435-1-git-send-email-tarun.kanti@ti.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: 1940 Lines: 59 From: Nishanth Menon GPIO debounce registers need to be saved and restored for proper functioning of driver. Signed-off-by: Nishanth Menon tarun.kanti@ti.com: Debounce context save is moved to _set_gpio_debounce() as part of dynamic context save to remove overhead. Signed-off-by: Tarun Kanti DebBarma Reviewed-by: Santosh Shilimkar --- drivers/gpio/gpio-omap.c | 12 ++++++++++++ 1 files changed, 12 insertions(+), 0 deletions(-) diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 4056d78..560567d 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -44,6 +44,8 @@ struct gpio_regs { u32 risingdetect; u32 fallingdetect; u32 dataout; + u32 debounce; + u32 debounce_en; }; struct gpio_bank { @@ -229,6 +231,10 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio, * that point. Therefore we have to enable dbck here. */ _gpio_dbck_enable(bank); + if (bank->dbck_enable_mask) { + bank->context.debounce = debounce; + bank->context.debounce_en = val; + } } static inline void set_gpio_trigger(struct gpio_bank *bank, int gpio, @@ -1359,6 +1365,12 @@ static void omap_gpio_restore_context(struct gpio_bank *bank) __raw_writel(bank->context.fallingdetect, bank->base + bank->regs->fallingdetect); __raw_writel(bank->context.dataout, bank->base + bank->regs->dataout); + if (bank->dbck_enable_mask) { + __raw_writel(bank->context.debounce, bank->base + + bank->regs->debounce); + __raw_writel(bank->context.debounce_en, + bank->base + bank->regs->debounce_en); + } } #else #define omap_gpio_suspend NULL -- 1.7.0.4 -- 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/