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gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

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Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Preparatory patch for the removal of the 'irq' argument from irq flow
handlers.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2015-06-04 12:13:15 +08:00 committed by Thomas Gleixner
parent c16edb8b3a
commit 476f8b4c94
10 changed files with 14 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpio/gpio-bcm-kona.c
View File

@ -438,7 +438,7 @@ static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
void __iomem *reg_base; void __iomem *reg_base;
int bit, bank_id; int bit, bank_id;
unsigned long sta; unsigned long sta;
struct bcm_kona_gpio_bank *bank = irq_get_handler_data(irq); struct bcm_kona_gpio_bank *bank = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip *chip = irq_desc_get_chip(desc);
chained_irq_enter(chip, desc); chained_irq_enter(chip, desc);

2
drivers/gpio/gpio-dwapb.c
View File

@ -149,7 +149,7 @@ static u32 dwapb_do_irq(struct dwapb_gpio *gpio)
static void dwapb_irq_handler(u32 irq, struct irq_desc *desc) static void dwapb_irq_handler(u32 irq, struct irq_desc *desc)
{ {
struct dwapb_gpio *gpio = irq_get_handler_data(irq); struct dwapb_gpio *gpio = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip *chip = irq_desc_get_chip(desc);
dwapb_do_irq(gpio); dwapb_do_irq(gpio);

2
drivers/gpio/gpio-mvebu.c
View File

@ -460,7 +460,7 @@ static int mvebu_gpio_irq_set_type(struct irq_data *d, unsigned int type)
static void mvebu_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) static void mvebu_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
{ {
struct mvebu_gpio_chip *mvchip = irq_get_handler_data(irq); struct mvebu_gpio_chip *mvchip = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip *chip = irq_desc_get_chip(desc);
u32 cause, type; u32 cause, type;
int i; int i;

6
drivers/gpio/gpio-mxc.c
View File

@ -275,8 +275,8 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat)
static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc) static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
{ {
u32 irq_stat; u32 irq_stat;
struct mxc_gpio_port *port = irq_get_handler_data(irq); struct mxc_gpio_port *port = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_get_chip(irq); struct irq_chip *chip = irq_desc_get_chip(desc);
chained_irq_enter(chip, desc); chained_irq_enter(chip, desc);
@ -292,7 +292,7 @@ static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
{ {
u32 irq_msk, irq_stat; u32 irq_msk, irq_stat;
struct mxc_gpio_port *port; struct mxc_gpio_port *port;
struct irq_chip *chip = irq_get_chip(irq); struct irq_chip *chip = irq_desc_get_chip(desc);
chained_irq_enter(chip, desc); chained_irq_enter(chip, desc);

2
drivers/gpio/gpio-mxs.c
View File

@ -157,7 +157,7 @@ static void mxs_flip_edge(struct mxs_gpio_port *port, u32 gpio)
static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc) static void mxs_gpio_irq_handler(u32 irq, struct irq_desc *desc)
{ {
u32 irq_stat; u32 irq_stat;
struct mxs_gpio_port *port = irq_get_handler_data(irq); struct mxs_gpio_port *port = irq_desc_get_handler_data(desc);
desc->irq_data.chip->irq_ack(&desc->irq_data); desc->irq_data.chip->irq_ack(&desc->irq_data);

2
drivers/gpio/gpio-omap.c
View File

@ -714,7 +714,7 @@ static void omap_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
struct gpio_bank *bank; struct gpio_bank *bank;
int unmasked = 0; int unmasked = 0;
struct irq_chip *irqchip = irq_desc_get_chip(desc); struct irq_chip *irqchip = irq_desc_get_chip(desc);
struct gpio_chip *chip = irq_get_handler_data(irq); struct gpio_chip *chip = irq_desc_get_handler_data(desc);
chained_irq_enter(irqchip, desc); chained_irq_enter(irqchip, desc);

4
drivers/gpio/gpio-tegra.c
View File

@ -268,16 +268,14 @@ static void tegra_gpio_irq_shutdown(struct irq_data *d)
static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
{ {
struct tegra_gpio_bank *bank;
int port; int port;
int pin; int pin;
int unmasked = 0; int unmasked = 0;
struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip *chip = irq_desc_get_chip(desc);
struct tegra_gpio_bank *bank = irq_desc_get_handler_data(desc);
chained_irq_enter(chip, desc); chained_irq_enter(chip, desc);
bank = irq_get_handler_data(irq);
for (port = 0; port < 4; port++) { for (port = 0; port < 4; port++) {
int gpio = tegra_gpio_compose(bank->bank, port, 0); int gpio = tegra_gpio_compose(bank->bank, port, 0);
unsigned long sta = tegra_gpio_readl(GPIO_INT_STA(gpio)) & unsigned long sta = tegra_gpio_readl(GPIO_INT_STA(gpio)) &

5
drivers/gpio/gpio-timberdale.c
View File

@ -194,11 +194,12 @@ out:
static void timbgpio_irq(unsigned int irq, struct irq_desc *desc) static void timbgpio_irq(unsigned int irq, struct irq_desc *desc)
{ {
struct timbgpio *tgpio = irq_get_handler_data(irq); struct timbgpio *tgpio = irq_desc_get_handler_data(desc);
struct irq_data *data = irq_desc_get_irq_data(desc);
unsigned long ipr; unsigned long ipr;
int offset; int offset;
desc->irq_data.chip->irq_ack(irq_get_irq_data(irq)); data->chip->irq_ack(data);
ipr = ioread32(tgpio->membase + TGPIO_IPR); ipr = ioread32(tgpio->membase + TGPIO_IPR);
iowrite32(ipr, tgpio->membase + TGPIO_ICR); iowrite32(ipr, tgpio->membase + TGPIO_ICR);

2
drivers/gpio/gpio-vf610.c
View File

@ -120,7 +120,7 @@ static int vf610_gpio_direction_output(struct gpio_chip *chip, unsigned gpio,
static void vf610_gpio_irq_handler(u32 irq, struct irq_desc *desc) static void vf610_gpio_irq_handler(u32 irq, struct irq_desc *desc)
{ {
struct vf610_gpio_port *port = irq_get_handler_data(irq); struct vf610_gpio_port *port = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc); struct irq_chip *chip = irq_desc_get_chip(desc);
int pin; int pin;
unsigned long irq_isfr; unsigned long irq_isfr;

2
drivers/gpio/gpio-zynq.c
View File

@ -518,7 +518,7 @@ static void zynq_gpio_irqhandler(unsigned int irq, struct irq_desc *desc)
{ {
u32 int_sts, int_enb; u32 int_sts, int_enb;
unsigned int bank_num; unsigned int bank_num;
struct zynq_gpio *gpio = irq_get_handler_data(irq); struct zynq_gpio *gpio = irq_desc_get_handler_data(desc);
struct irq_chip *irqchip = irq_desc_get_chip(desc); struct irq_chip *irqchip = irq_desc_get_chip(desc);
chained_irq_enter(irqchip, desc); chained_irq_enter(irqchip, desc);