summaryrefslogtreecommitdiffstats
path: root/drivers/pinctrl
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pinctrl')
-rw-r--r--drivers/pinctrl/nomadik/pinctrl-nomadik.c128
1 files changed, 51 insertions, 77 deletions
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index 7a7b9846ff57..9893013f3cdd 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -24,6 +24,7 @@
#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
+#include <linux/bitops.h>
#include <linux/pinctrl/machine.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
@@ -292,15 +293,14 @@ static DEFINE_SPINLOCK(nmk_gpio_slpm_lock);
static void __nmk_gpio_set_mode(struct nmk_gpio_chip *nmk_chip,
unsigned offset, int gpio_mode)
{
- u32 bit = 1 << offset;
u32 afunc, bfunc;
- afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & ~bit;
- bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & ~bit;
+ afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & ~BIT(offset);
+ bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & ~BIT(offset);
if (gpio_mode & NMK_GPIO_ALT_A)
- afunc |= bit;
+ afunc |= BIT(offset);
if (gpio_mode & NMK_GPIO_ALT_B)
- bfunc |= bit;
+ bfunc |= BIT(offset);
writel(afunc, nmk_chip->addr + NMK_GPIO_AFSLA);
writel(bfunc, nmk_chip->addr + NMK_GPIO_AFSLB);
}
@@ -308,55 +308,52 @@ static void __nmk_gpio_set_mode(struct nmk_gpio_chip *nmk_chip,
static void __nmk_gpio_set_slpm(struct nmk_gpio_chip *nmk_chip,
unsigned offset, enum nmk_gpio_slpm mode)
{
- u32 bit = 1 << offset;
u32 slpm;
slpm = readl(nmk_chip->addr + NMK_GPIO_SLPC);
if (mode == NMK_GPIO_SLPM_NOCHANGE)
- slpm |= bit;
+ slpm |= BIT(offset);
else
- slpm &= ~bit;
+ slpm &= ~BIT(offset);
writel(slpm, nmk_chip->addr + NMK_GPIO_SLPC);
}
static void __nmk_gpio_set_pull(struct nmk_gpio_chip *nmk_chip,
unsigned offset, enum nmk_gpio_pull pull)
{
- u32 bit = 1 << offset;
u32 pdis;
pdis = readl(nmk_chip->addr + NMK_GPIO_PDIS);
if (pull == NMK_GPIO_PULL_NONE) {
- pdis |= bit;
- nmk_chip->pull_up &= ~bit;
+ pdis |= BIT(offset);
+ nmk_chip->pull_up &= ~BIT(offset);
} else {
- pdis &= ~bit;
+ pdis &= ~BIT(offset);
}
writel(pdis, nmk_chip->addr + NMK_GPIO_PDIS);
if (pull == NMK_GPIO_PULL_UP) {
- nmk_chip->pull_up |= bit;
- writel(bit, nmk_chip->addr + NMK_GPIO_DATS);
+ nmk_chip->pull_up |= BIT(offset);
+ writel(BIT(offset), nmk_chip->addr + NMK_GPIO_DATS);
} else if (pull == NMK_GPIO_PULL_DOWN) {
- nmk_chip->pull_up &= ~bit;
- writel(bit, nmk_chip->addr + NMK_GPIO_DATC);
+ nmk_chip->pull_up &= ~BIT(offset);
+ writel(BIT(offset), nmk_chip->addr + NMK_GPIO_DATC);
}
}
static void __nmk_gpio_set_lowemi(struct nmk_gpio_chip *nmk_chip,
unsigned offset, bool lowemi)
{
- u32 bit = BIT(offset);
- bool enabled = nmk_chip->lowemi & bit;
+ bool enabled = nmk_chip->lowemi & BIT(offset);
if (lowemi == enabled)
return;
if (lowemi)
- nmk_chip->lowemi |= bit;
+ nmk_chip->lowemi |= BIT(offset);
else
- nmk_chip->lowemi &= ~bit;
+ nmk_chip->lowemi &= ~BIT(offset);
writel_relaxed(nmk_chip->lowemi,
nmk_chip->addr + NMK_GPIO_LOWEMI);
@@ -365,22 +362,22 @@ static void __nmk_gpio_set_lowemi(struct nmk_gpio_chip *nmk_chip,
static void __nmk_gpio_make_input(struct nmk_gpio_chip *nmk_chip,
unsigned offset)
{
- writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC);
+ writel(BIT(offset), nmk_chip->addr + NMK_GPIO_DIRC);
}
static void __nmk_gpio_set_output(struct nmk_gpio_chip *nmk_chip,
unsigned offset, int val)
{
if (val)
- writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATS);
+ writel(BIT(offset), nmk_chip->addr + NMK_GPIO_DATS);
else
- writel(1 << offset, nmk_chip->addr + NMK_GPIO_DATC);
+ writel(BIT(offset), nmk_chip->addr + NMK_GPIO_DATC);
}
static void __nmk_gpio_make_output(struct nmk_gpio_chip *nmk_chip,
unsigned offset, int val)
{
- writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRS);
+ writel(BIT(offset), nmk_chip->addr + NMK_GPIO_DIRS);
__nmk_gpio_set_output(nmk_chip, offset, val);
}
@@ -614,34 +611,21 @@ static int __maybe_unused nmk_prcm_gpiocr_get_mode(struct pinctrl_dev *pctldev,
return NMK_GPIO_ALT_C;
}
-int nmk_gpio_get_mode(int gpio)
+static int nmk_gpio_get_mode(struct nmk_gpio_chip *nmk_chip, int offset)
{
- struct nmk_gpio_chip *nmk_chip;
- u32 afunc, bfunc, bit;
-
- nmk_chip = nmk_gpio_chips[gpio / NMK_GPIO_PER_CHIP];
- if (!nmk_chip)
- return -EINVAL;
-
- bit = 1 << (gpio % NMK_GPIO_PER_CHIP);
+ u32 afunc, bfunc;
clk_enable(nmk_chip->clk);
- afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & bit;
- bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & bit;
+ afunc = readl(nmk_chip->addr + NMK_GPIO_AFSLA) & BIT(offset);
+ bfunc = readl(nmk_chip->addr + NMK_GPIO_AFSLB) & BIT(offset);
clk_disable(nmk_chip->clk);
return (afunc ? NMK_GPIO_ALT_A : 0) | (bfunc ? NMK_GPIO_ALT_B : 0);
}
-EXPORT_SYMBOL(nmk_gpio_get_mode);
-
/* IRQ functions */
-static inline int nmk_gpio_get_bitmask(int gpio)
-{
- return 1 << (gpio % NMK_GPIO_PER_CHIP);
-}
static void nmk_gpio_irq_ack(struct irq_data *d)
{
@@ -649,7 +633,7 @@ static void nmk_gpio_irq_ack(struct irq_data *d)
struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip);
clk_enable(nmk_chip->clk);
- writel(nmk_gpio_get_bitmask(d->hwirq), nmk_chip->addr + NMK_GPIO_IC);
+ writel(BIT(d->hwirq), nmk_chip->addr + NMK_GPIO_IC);
clk_disable(nmk_chip->clk);
}
@@ -659,10 +643,9 @@ enum nmk_gpio_irq_type {
};
static void __nmk_gpio_irq_modify(struct nmk_gpio_chip *nmk_chip,
- int gpio, enum nmk_gpio_irq_type which,
+ int offset, enum nmk_gpio_irq_type which,
bool enable)
{
- u32 bitmask = nmk_gpio_get_bitmask(gpio);
u32 *rimscval;
u32 *fimscval;
u32 rimscreg;
@@ -681,24 +664,24 @@ static void __nmk_gpio_irq_modify(struct nmk_gpio_chip *nmk_chip,
}
/* we must individually set/clear the two edges */
- if (nmk_chip->edge_rising & bitmask) {
+ if (nmk_chip->edge_rising & BIT(offset)) {
if (enable)
- *rimscval |= bitmask;
+ *rimscval |= BIT(offset);
else
- *rimscval &= ~bitmask;
+ *rimscval &= ~BIT(offset);
writel(*rimscval, nmk_chip->addr + rimscreg);
}
- if (nmk_chip->edge_falling & bitmask) {
+ if (nmk_chip->edge_falling & BIT(offset)) {
if (enable)
- *fimscval |= bitmask;
+ *fimscval |= BIT(offset);
else
- *fimscval &= ~bitmask;
+ *fimscval &= ~BIT(offset);
writel(*fimscval, nmk_chip->addr + fimscreg);
}
}
static void __nmk_gpio_set_wake(struct nmk_gpio_chip *nmk_chip,
- int gpio, bool on)
+ int offset, bool on)
{
/*
* Ensure WAKEUP_ENABLE is on. No need to disable it if wakeup is
@@ -706,21 +689,19 @@ static void __nmk_gpio_set_wake(struct nmk_gpio_chip *nmk_chip,
* wakeup is anyhow controlled by the RIMSC and FIMSC registers.
*/
if (nmk_chip->sleepmode && on) {
- __nmk_gpio_set_slpm(nmk_chip, gpio % NMK_GPIO_PER_CHIP,
+ __nmk_gpio_set_slpm(nmk_chip, offset,
NMK_GPIO_SLPM_WAKEUP_ENABLE);
}
- __nmk_gpio_irq_modify(nmk_chip, gpio, WAKE, on);
+ __nmk_gpio_irq_modify(nmk_chip, offset, WAKE, on);
}
static int nmk_gpio_irq_maskunmask(struct irq_data *d, bool enable)
{
struct nmk_gpio_chip *nmk_chip;
unsigned long flags;
- u32 bitmask;
nmk_chip = irq_data_get_irq_chip_data(d);
- bitmask = nmk_gpio_get_bitmask(d->hwirq);
if (!nmk_chip)
return -EINVAL;
@@ -730,7 +711,7 @@ static int nmk_gpio_irq_maskunmask(struct irq_data *d, bool enable)
__nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, enable);
- if (!(nmk_chip->real_wake & bitmask))
+ if (!(nmk_chip->real_wake & BIT(d->hwirq)))
__nmk_gpio_set_wake(nmk_chip, d->hwirq, enable);
spin_unlock(&nmk_chip->lock);
@@ -754,12 +735,10 @@ static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
{
struct nmk_gpio_chip *nmk_chip;
unsigned long flags;
- u32 bitmask;
nmk_chip = irq_data_get_irq_chip_data(d);
if (!nmk_chip)
return -EINVAL;
- bitmask = nmk_gpio_get_bitmask(d->hwirq);
clk_enable(nmk_chip->clk);
spin_lock_irqsave(&nmk_gpio_slpm_lock, flags);
@@ -769,9 +748,9 @@ static int nmk_gpio_irq_set_wake(struct irq_data *d, unsigned int on)
__nmk_gpio_set_wake(nmk_chip, d->hwirq, on);
if (on)
- nmk_chip->real_wake |= bitmask;
+ nmk_chip->real_wake |= BIT(d->hwirq);
else
- nmk_chip->real_wake &= ~bitmask;
+ nmk_chip->real_wake &= ~BIT(d->hwirq);
spin_unlock(&nmk_chip->lock);
spin_unlock_irqrestore(&nmk_gpio_slpm_lock, flags);
@@ -786,10 +765,8 @@ static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
bool wake = irqd_is_wakeup_set(d);
struct nmk_gpio_chip *nmk_chip;
unsigned long flags;
- u32 bitmask;
nmk_chip = irq_data_get_irq_chip_data(d);
- bitmask = nmk_gpio_get_bitmask(d->hwirq);
if (!nmk_chip)
return -EINVAL;
if (type & IRQ_TYPE_LEVEL_HIGH)
@@ -806,13 +783,13 @@ static int nmk_gpio_irq_set_type(struct irq_data *d, unsigned int type)
if (enabled || wake)
__nmk_gpio_irq_modify(nmk_chip, d->hwirq, WAKE, false);
- nmk_chip->edge_rising &= ~bitmask;
+ nmk_chip->edge_rising &= ~BIT(d->hwirq);
if (type & IRQ_TYPE_EDGE_RISING)
- nmk_chip->edge_rising |= bitmask;
+ nmk_chip->edge_rising |= BIT(d->hwirq);
- nmk_chip->edge_falling &= ~bitmask;
+ nmk_chip->edge_falling &= ~BIT(d->hwirq);
if (type & IRQ_TYPE_EDGE_FALLING)
- nmk_chip->edge_falling |= bitmask;
+ nmk_chip->edge_falling |= BIT(d->hwirq);
if (enabled)
__nmk_gpio_irq_modify(nmk_chip, d->hwirq, NORMAL, true);
@@ -890,7 +867,7 @@ static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset)
clk_enable(nmk_chip->clk);
- writel(1 << offset, nmk_chip->addr + NMK_GPIO_DIRC);
+ writel(BIT(offset), nmk_chip->addr + NMK_GPIO_DIRC);
clk_disable(nmk_chip->clk);
@@ -900,12 +877,11 @@ static int nmk_gpio_make_input(struct gpio_chip *chip, unsigned offset)
static int nmk_gpio_get_input(struct gpio_chip *chip, unsigned offset)
{
struct nmk_gpio_chip *nmk_chip = gpiochip_get_data(chip);
- u32 bit = 1 << offset;
int value;
clk_enable(nmk_chip->clk);
- value = (readl(nmk_chip->addr + NMK_GPIO_DAT) & bit) != 0;
+ value = !!(readl(nmk_chip->addr + NMK_GPIO_DAT) & BIT(offset));
clk_disable(nmk_chip->clk);
@@ -952,7 +928,6 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s,
bool is_out;
bool data_out;
bool pull;
- u32 bit = 1 << offset;
const char *modes[] = {
[NMK_GPIO_ALT_GPIO] = "gpio",
[NMK_GPIO_ALT_A] = "altA",
@@ -970,10 +945,10 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s,
};
clk_enable(nmk_chip->clk);
- is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & bit);
- pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit);
- data_out = !!(readl(nmk_chip->addr + NMK_GPIO_DAT) & bit);
- mode = nmk_gpio_get_mode(gpio);
+ is_out = !!(readl(nmk_chip->addr + NMK_GPIO_DIR) & BIT(offset));
+ pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & BIT(offset));
+ data_out = !!(readl(nmk_chip->addr + NMK_GPIO_DAT) & BIT(offset));
+ mode = nmk_gpio_get_mode(nmk_chip, offset);
if ((mode == NMK_GPIO_ALT_C) && pctldev)
mode = nmk_prcm_gpiocr_get_mode(pctldev, gpio);
@@ -1007,11 +982,10 @@ static void nmk_gpio_dbg_show_one(struct seq_file *s,
*/
if (irq > 0 && desc && desc->action) {
char *trigger;
- u32 bitmask = nmk_gpio_get_bitmask(gpio);
- if (nmk_chip->edge_rising & bitmask)
+ if (nmk_chip->edge_rising & BIT(offset))
trigger = "edge-rising";
- else if (nmk_chip->edge_falling & bitmask)
+ else if (nmk_chip->edge_falling & BIT(offset))
trigger = "edge-falling";
else
trigger = "edge-undefined";
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 13:47:07 +0100