From: Tarun Kanti DebBarma <tarun.kanti@ti.com>
To: <linux-omap@vger.kernel.org>
Cc: <grant.likely@secretlab.ca>, <khilman@ti.com>, <tony@atomide.com>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Nishanth Menon <nm@ti.com>,
Tarun Kanti DebBarma <tarun.kanti@ti.com>
Subject: [PATCH v9 22/25] gpio/omap: save and restore debounce registers
Date: Thu, 2 Feb 2012 23:00:48 +0530 [thread overview]
Message-ID: <1328203851-20435-23-git-send-email-tarun.kanti@ti.com> (raw)
In-Reply-To: <1328203851-20435-1-git-send-email-tarun.kanti@ti.com>
From: Nishanth Menon <nm@ti.com>
GPIO debounce registers need to be saved and restored for proper functioning
of driver.
Signed-off-by: Nishanth Menon <nm@ti.com>
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 <tarun.kanti@ti.com>
Reviewed-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
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
next prev parent reply other threads:[~2012-02-02 17:38 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-02 17:30 [PATCH v9 00/25] gpio/omap: driver cleanup and fixes Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 01/25] gpio/omap: remove dependency on gpio_bank_count Tarun Kanti DebBarma
2012-02-02 18:41 ` Felipe Balbi
2012-02-02 19:16 ` Grant Likely
2012-02-02 19:45 ` Felipe Balbi
2012-02-02 20:48 ` Cousson, Benoit
2012-02-02 21:49 ` Felipe Balbi
2012-02-02 21:53 ` Felipe Balbi
2012-02-02 22:00 ` Cousson, Benoit
2012-02-02 22:07 ` Felipe Balbi
2012-02-03 17:50 ` Kevin Hilman
2012-02-04 16:08 ` Felipe Balbi
2012-02-05 7:07 ` Varadarajan, Charulatha
2012-02-05 9:08 ` Felipe Balbi
2012-02-05 9:16 ` Shilimkar, Santosh
2012-02-05 11:35 ` Felipe Balbi
2012-02-05 12:35 ` Shilimkar, Santosh
2012-02-06 6:40 ` Felipe Balbi
2012-02-06 5:18 ` Varadarajan, Charulatha
2012-02-02 17:30 ` [PATCH v9 02/25] gpio/omap: use flag to identify wakeup domain Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 03/25] gpio/omap: make gpio_context part of gpio_bank structure Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 04/25] gpio/omap: handle save/restore context in GPIO driver Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 05/25] gpio/omap: make non-wakeup GPIO part of pdata Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 06/25] gpio/omap: avoid cpu checks during module ena/disable Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 07/25] gpio/omap: further cleanup using wkup_en register Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 08/25] gpio/omap: use level/edge detect reg offsets Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 09/25] gpio/omap: remove hardcoded offsets in context save/restore Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 10/25] gpio/omap: cleanup set_gpio_triggering function Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 11/25] gpio/omap: cleanup omap_gpio_mod_init function Tarun Kanti DebBarma
2012-04-21 14:03 ` Janusz Krzysztofik
2012-04-23 18:54 ` DebBarma, Tarun Kanti
2012-04-24 15:36 ` DebBarma, Tarun Kanti
2012-04-24 16:04 ` Tony Lindgren
2012-04-25 4:34 ` DebBarma, Tarun Kanti
2012-04-25 6:39 ` Shilimkar, Santosh
2012-04-25 12:54 ` DebBarma, Tarun Kanti
2012-04-25 13:45 ` Russell King - ARM Linux
2012-04-26 5:13 ` DebBarma, Tarun Kanti
2012-04-27 21:31 ` Kevin Hilman
2012-04-24 22:37 ` Janusz Krzysztofik
2012-02-02 17:30 ` [PATCH v9 12/25] gpio/omap: use pinctrl offset instead of macro Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 13/25] gpio/omap: remove unnecessary bit-masking for read access Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 14/25] gpio/omap: remove bank->method & METHOD_* macros Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 15/25] gpio/omap: fix bankwidth for OMAP7xx MPUIO Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 16/25] gpio/omap: use pm-runtime framework Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 17/25] gpio/omap: optimize suspend and resume functions Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 18/25] gpio/omap: cleanup prepare_for_idle and resume_after_idle Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 19/25] gpio/omap: fix debounce clock handling Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 20/25] gpio/omap: fix incorrect access of debounce module Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 21/25] gpio/omap: remove omap_gpio_save_context overhead Tarun Kanti DebBarma
2012-02-02 17:30 ` Tarun Kanti DebBarma [this message]
2012-02-02 17:30 ` [PATCH v9 23/25] gpio/omap: enable irq at the end of all configuration in restore Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 24/25] gpio/omap: restore OE only after setting the output level Tarun Kanti DebBarma
2012-02-02 17:30 ` [PATCH v9 25/25] gpio/omap: handle set_dataout reg capable IP on restore Tarun Kanti DebBarma
2012-02-02 19:42 ` [PATCH v9 00/25] gpio/omap: driver cleanup and fixes Grant Likely
2012-02-03 17:51 ` Kevin Hilman
2012-02-03 21:16 ` Grant Likely
2012-02-03 9:21 ` Hebbar, Gururaja
[not found] ` <CAC83ZvLoYVofH9oKXw92i-=DbP2i3NfZjLGSJwk1j0JvXcFZVQ@mail.gmail.com>
2012-02-03 12:09 ` Hebbar, Gururaja
2012-02-03 21:01 ` Kevin Hilman
2012-02-06 11:53 ` DebBarma, Tarun Kanti
2012-02-10 19:24 ` Tony Lindgren
2012-02-10 19:55 ` Kevin Hilman
2012-02-13 5:33 ` DebBarma, Tarun Kanti
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