d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

arm64: QorIQ: gpio: Cleanup qoriq_gpio_* helpers

Browse Source 
Replace various hw reg bit set/clear helpers with a universal
`qoriq_gpio_set` function.

Submitted by: Artur Rojek <ar@semihalf.com>
Reviewed by: mmel
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential Revision: https://reviews.freebsd.org/D26868
This commit is contained in:
Marcin Wojtas 2021-01-06 15:15:55 +01:00
parent c76c36f95c
commit 39c24889b0
1 changed files with 12 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

91
sys/arm64/qoriq/ls1046_gpio.c
View File

@ -83,12 +83,7 @@ struct gpio_softc {
static bool qoriq_make_gpio_res(device_t, struct gpio_res*);
static uint32_t qoriq_gpio_reg_read(device_t, uint32_t);
static void qoriq_gpio_reg_write(device_t, uint32_t, uint32_t);
static void qoriq_gpio_reg_set(device_t, uint32_t, uint32_t);
static void qoriq_gpio_reg_clear(device_t, uint32_t, uint32_t);
static void qoriq_gpio_out_en(device_t, uint32_t, uint8_t);
static void qoriq_gpio_value_set(device_t, uint32_t, uint8_t);
static uint32_t qoriq_gpio_value_get(device_t, uint32_t);
static void qoriq_gpio_open_drain_set(device_t, uint32_t, uint8_t);
static void qoriq_gpio_set(device_t, uint32_t, uint32_t, uint32_t);
static int qoriq_gpio_configure(device_t, uint32_t, uint32_t);
/* GPIO API */
@ -180,75 +175,13 @@ qoriq_gpio_reg_write(device_t dev, uint32_t reg, uint32_t val)
}
static void
qoriq_gpio_reg_set(device_t dev, uint32_t reg, uint32_t pin)
qoriq_gpio_set(device_t dev, uint32_t reg, uint32_t pin, uint32_t set)
{
uint32_t reg_val;
uint32_t val;
reg_val = qoriq_gpio_reg_read(dev, reg);
reg_val |= GPIO(pin);
qoriq_gpio_reg_write(dev, reg, reg_val);
}
static void
qoriq_gpio_reg_clear(device_t dev, uint32_t reg, uint32_t pin)
{
uint32_t reg_val;
reg_val = qoriq_gpio_reg_read(dev, reg);
reg_val &= ~(GPIO(pin));
qoriq_gpio_reg_write(dev, reg, reg_val);
}
static void
qoriq_gpio_out_en(device_t dev, uint32_t pin, uint8_t enable)
{
if (pin >= PIN_COUNT)
return;
if (enable != 0)
qoriq_gpio_reg_set(dev, DIRECTION, pin);
else
qoriq_gpio_reg_clear(dev, DIRECTION, pin);
}
static void
qoriq_gpio_value_set(device_t dev, uint32_t pin, uint8_t val)
{
if (pin >= PIN_COUNT)
return;
if (val != 0)
qoriq_gpio_reg_set(dev, DATA, pin);
else
qoriq_gpio_reg_clear(dev, DATA, pin);
}
static uint32_t
qoriq_gpio_value_get(device_t dev, uint32_t pin)
{
uint32_t reg_val;
if (pin >= PIN_COUNT)
return (0);
reg_val = qoriq_gpio_reg_read(dev, DATA);
return ((reg_val & GPIO(pin)) != 0);
}
static void
qoriq_gpio_open_drain_set(device_t dev, uint32_t pin, uint8_t val)
{
if (pin >= PIN_COUNT)
return;
if (val != 0)
qoriq_gpio_reg_set(dev, OPEN_DRAIN, pin);
else
qoriq_gpio_reg_clear(dev, OPEN_DRAIN, pin);
set = set != 0;
val = (qoriq_gpio_reg_read(dev, reg) & ~(1U << pin)) | (set << pin);
qoriq_gpio_reg_write(dev, reg, val);
}
static int
@ -272,19 +205,19 @@ qoriq_gpio_configure(device_t dev, uint32_t pin, uint32_t flags)
if (flags & GPIO_PIN_INPUT) {
newflags = GPIO_PIN_INPUT;
qoriq_gpio_out_en(dev, pin, 0);
qoriq_gpio_set(dev, DIRECTION, pin, 0);
}
if (flags & GPIO_PIN_OUTPUT) {
newflags = GPIO_PIN_OUTPUT;
qoriq_gpio_out_en(dev, pin, 1);
qoriq_gpio_set(dev, DIRECTION, pin, 1);
if (flags & GPIO_PIN_OPENDRAIN) {
newflags |= GPIO_PIN_OPENDRAIN;
qoriq_gpio_open_drain_set(dev, pin, 1);
qoriq_gpio_set(dev, OPEN_DRAIN, pin, 1);
} else {
newflags |= GPIO_PIN_PUSHPULL;
qoriq_gpio_open_drain_set(dev, pin, 0);
qoriq_gpio_set(dev, OPEN_DRAIN, pin, 0);
}
}
@ -425,7 +358,7 @@ qoriq_gpio_pin_get(device_t dev, uint32_t pin, uint32_t *value)
return (EINVAL);
QORIQ_GPIO_LOCK(sc);
*value = qoriq_gpio_value_get(dev, pin);
*value = (qoriq_gpio_reg_read(dev, DATA) & GPIO(pin)) != 0;
QORIQ_GPIO_UNLOCK(sc);
return (0);
@ -440,7 +373,7 @@ qoriq_gpio_pin_set(device_t dev, uint32_t pin, uint32_t value)
return (EINVAL);
QORIQ_GPIO_LOCK(sc);
qoriq_gpio_value_set(dev, pin, value);
qoriq_gpio_set(dev, DATA, pin, value);
QORIQ_GPIO_UNLOCK(sc);
return (0);