From: Thomas Gleixner <tglx@linutronix.de>
To: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: Linus Walleij <linus.walleij@linaro.org>,
Alexandre Courbot <gnurou@gmail.com>,
Jiang Liu <jiang.liu@linux.intel.com>,
linux-gpio@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>
Subject: Re: [patch 18/19] gpio/msm-v2: Avoid redundant lookup of irq_data
Date: Tue, 14 Jul 2015 12:14:18 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.11.1507141212490.20072@nanos> (raw)
In-Reply-To: <CAKb7UviaGO2a=B7_4CbirQU=JLS5D_bNAe-PWzL-8Sp621rkYQ@mail.gmail.com>
On Tue, 14 Jul 2015, Ilia Mirkin wrote:
> > static void msm_gpio_irq_ack(struct irq_data *d)
> > {
> > - int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
> > + int gpio = d->hw_irq;
>
> Does this build? It was hwirq above, not hw_irq.
Indeed. Updated patch below.
Thanks,
tglx
---
Subject: gpio/msm-v2: Avoid redundant lookup of irq_data
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 13 Jul 2015 01:07:01 +0200
It's pretty silly to do
irq_data *d = irq_get_irq_data(irq_data->irq);
because that results in d = irq_data, but goes through a lookup of the
irq_data. Use irq_data directly.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: linux-gpio@vger.kernel.org
---
drivers/gpio/gpio-msm-v2.c | 18 +++++-------------
1 file changed, 5 insertions(+), 13 deletions(-)
Index: tip/drivers/gpio/gpio-msm-v2.c
===================================================================
--- tip.orig/drivers/gpio/gpio-msm-v2.c
+++ tip/drivers/gpio/gpio-msm-v2.c
@@ -187,14 +187,6 @@ static int msm_gpio_to_irq(struct gpio_c
return irq_create_mapping(domain, offset);
}
-static inline int msm_irq_to_gpio(struct gpio_chip *chip, unsigned irq)
-{
- struct irq_data *irq_data = irq_get_irq_data(irq);
-
- return irq_data->hwirq;
-}
-
-
/* For dual-edge interrupts in software, since the hardware has no
* such support:
*
@@ -238,7 +230,7 @@ static void msm_gpio_update_dual_edge_po
static void msm_gpio_irq_ack(struct irq_data *d)
{
- int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
+ int gpio = d->hwirq;
writel(BIT(INTR_STATUS), GPIO_INTR_STATUS(gpio));
if (test_bit(gpio, msm_gpio.dual_edge_irqs))
@@ -247,8 +239,8 @@ static void msm_gpio_irq_ack(struct irq_
static void msm_gpio_irq_mask(struct irq_data *d)
{
- int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
unsigned long irq_flags;
+ int gpio = d->hwirq;
spin_lock_irqsave(&tlmm_lock, irq_flags);
writel(TARGET_PROC_NONE, GPIO_INTR_CFG_SU(gpio));
@@ -259,8 +251,8 @@ static void msm_gpio_irq_mask(struct irq
static void msm_gpio_irq_unmask(struct irq_data *d)
{
- int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
unsigned long irq_flags;
+ int gpio = d->hwirq;
spin_lock_irqsave(&tlmm_lock, irq_flags);
__set_bit(gpio, msm_gpio.enabled_irqs);
@@ -271,8 +263,8 @@ static void msm_gpio_irq_unmask(struct i
static int msm_gpio_irq_set_type(struct irq_data *d, unsigned int flow_type)
{
- int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
unsigned long irq_flags;
+ int gpio = d->hwirq;
uint32_t bits;
spin_lock_irqsave(&tlmm_lock, irq_flags);
@@ -331,7 +323,7 @@ static void msm_summary_irq_handler(unsi
static int msm_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
{
- int gpio = msm_irq_to_gpio(&msm_gpio.gpio_chip, d->irq);
+ int gpio = d->hwirq;
if (on) {
if (bitmap_empty(msm_gpio.wake_irqs, MAX_NR_GPIO))
next prev parent reply other threads:[~2015-07-14 10:14 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 20:41 [patch 00/19] gpio: Interrupt cleanups and API change preparation Thomas Gleixner
2015-07-13 20:41 ` [patch 01/19] gpio/mpc8xxx: Consolidate chained IRQ handler install/remove Thomas Gleixner
2015-07-13 20:41 ` [patch 02/19] gpio/mvebu: " Thomas Gleixner
2015-07-13 20:41 ` [patch 03/19] gpio/timberdale: " Thomas Gleixner
2015-07-13 20:41 ` [patch 04/19] gpio/tz1090: " Thomas Gleixner
2015-07-13 20:41 ` [patch 05/19] gpiolib: " Thomas Gleixner
2015-07-13 20:41 ` [patch 06/19] gpio/zynq: Use irq_set_chip_handler_name_locked() Thomas Gleixner
2015-07-13 20:41 ` [patch 07/19] gpio/ep93xx: Use irq_set_handler_locked() Thomas Gleixner
2015-07-13 20:41 ` [patch 08/19] gpio/msm-v2: " Thomas Gleixner
2015-07-13 20:41 ` [patch 09/19] gpio/omap: " Thomas Gleixner
2015-07-13 20:41 ` [patch 10/19] gpio/pch: " Thomas Gleixner
2015-07-13 20:41 ` [patch 11/19] gpio/gpio-tegra: " Thomas Gleixner
2015-07-13 20:41 ` [patch 12/19] gpio/davinci: Use accessor function irq_data_get_irq_handler_data() Thomas Gleixner
2015-07-13 20:41 ` [patch 13/19] gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc Thomas Gleixner
2015-07-13 20:41 ` [patch 14/19] gpio/davinci: Prepare gpio_irq_handler for irq argument removal Thomas Gleixner
2015-07-13 20:41 ` [patch 15/19] gpio/ep93xx: Prepare ep93xx_gpio_f_irq_handler " Thomas Gleixner
2015-07-13 20:41 ` [patch 16/19] gpio/mvebu: Prepare mvebu_gpio_irq_handler " Thomas Gleixner
2015-07-13 20:41 ` [patch 17/19] gpio/sa1100: Prepare sa1100_gpio_handler " Thomas Gleixner
2015-07-13 20:41 ` [patch 18/19] gpio/msm-v2: Avoid redundant lookup of irq_data Thomas Gleixner
[not found] ` <CAKb7UviaGO2a=B7_4CbirQU=JLS5D_bNAe-PWzL-8Sp621rkYQ@mail.gmail.com>
2015-07-14 5:39 ` Jiang Liu
2015-07-14 10:14 ` Thomas Gleixner [this message]
2015-07-13 20:41 ` [patch 19/19] gpio/davinci: " Thomas Gleixner
2015-07-14 10:16 ` Thomas Gleixner
2015-07-16 13:55 ` [patch 00/19] gpio: Interrupt cleanups and API change preparation Linus Walleij
2015-07-16 14:13 ` Thomas Gleixner
2015-07-17 12:47 ` Linus Walleij
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