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-rw-r--r--drivers/gpio/Kconfig2
-rw-r--r--drivers/gpio/TODO4
-rw-r--r--drivers/gpio/gpio-f7188x.c33
-rw-r--r--drivers/gpio/gpio-pca953x.c94
-rw-r--r--drivers/gpio/gpio-pl061.c9
-rw-r--r--drivers/gpio/gpio-tegra186.c1
-rw-r--r--drivers/gpio/gpio-xgene-sb.c2
-rw-r--r--drivers/gpio/gpiolib-devprop.c5
-rw-r--r--drivers/gpio/gpiolib-of.c10
9 files changed, 113 insertions, 47 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 1b96169d84f7..8ef2179fb999 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -422,7 +422,7 @@ config GPIO_OMAP
Say yes here to enable GPIO support for TI OMAP SoCs.
config GPIO_PL061
- bool "PrimeCell PL061 GPIO support"
+ tristate "PrimeCell PL061 GPIO support"
depends on ARM_AMBA
select IRQ_DOMAIN
select GPIOLIB_IRQCHIP
diff --git a/drivers/gpio/TODO b/drivers/gpio/TODO
index 3a44e6ae52bd..b989c9352da2 100644
--- a/drivers/gpio/TODO
+++ b/drivers/gpio/TODO
@@ -99,6 +99,10 @@ similar and probe a proper driver in the gpiolib subsystem.
In some cases it makes sense to create a GPIO chip from the local driver
for a few GPIOs. Those should stay where they are.
+At the same time it makes sense to get rid of code duplication in existing or
+new coming drivers. For example, gpio-ml-ioh should be incorporated into
+gpio-pch. In similar way gpio-intel-mid into gpio-pxa.
+
Generic MMIO GPIO
diff --git a/drivers/gpio/gpio-f7188x.c b/drivers/gpio/gpio-f7188x.c
index cadd02993539..18a3147f5a42 100644
--- a/drivers/gpio/gpio-f7188x.c
+++ b/drivers/gpio/gpio-f7188x.c
@@ -36,9 +36,19 @@
#define SIO_F71889A_ID 0x1005 /* F71889A chipset ID */
#define SIO_F81866_ID 0x1010 /* F81866 chipset ID */
#define SIO_F81804_ID 0x1502 /* F81804 chipset ID, same for f81966 */
-
-
-enum chips { f71869, f71869a, f71882fg, f71889a, f71889f, f81866, f81804 };
+#define SIO_F81865_ID 0x0704 /* F81865 chipset ID */
+
+
+enum chips {
+ f71869,
+ f71869a,
+ f71882fg,
+ f71889a,
+ f71889f,
+ f81866,
+ f81804,
+ f81865,
+};
static const char * const f7188x_names[] = {
"f71869",
@@ -48,6 +58,7 @@ static const char * const f7188x_names[] = {
"f71889f",
"f81866",
"f81804",
+ "f81865",
};
struct f7188x_sio {
@@ -233,6 +244,15 @@ static struct f7188x_gpio_bank f81804_gpio_bank[] = {
F7188X_GPIO_BANK(90, 8, 0x98),
};
+static struct f7188x_gpio_bank f81865_gpio_bank[] = {
+ F7188X_GPIO_BANK(0, 8, 0xF0),
+ F7188X_GPIO_BANK(10, 8, 0xE0),
+ F7188X_GPIO_BANK(20, 8, 0xD0),
+ F7188X_GPIO_BANK(30, 8, 0xC0),
+ F7188X_GPIO_BANK(40, 8, 0xB0),
+ F7188X_GPIO_BANK(50, 8, 0xA0),
+ F7188X_GPIO_BANK(60, 5, 0x90),
+};
static int f7188x_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
{
@@ -425,6 +445,10 @@ static int f7188x_gpio_probe(struct platform_device *pdev)
data->nr_bank = ARRAY_SIZE(f81804_gpio_bank);
data->bank = f81804_gpio_bank;
break;
+ case f81865:
+ data->nr_bank = ARRAY_SIZE(f81865_gpio_bank);
+ data->bank = f81865_gpio_bank;
+ break;
default:
return -ENODEV;
}
@@ -490,6 +514,9 @@ static int __init f7188x_find(int addr, struct f7188x_sio *sio)
case SIO_F81804_ID:
sio->type = f81804;
break;
+ case SIO_F81865_ID:
+ sio->type = f81865;
+ break;
default:
pr_info(DRVNAME ": Unsupported Fintek device 0x%04x\n", devid);
goto err;
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 5638b4e5355f..06d6af60e6b7 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -306,37 +306,39 @@ static const struct regmap_config pca953x_i2c_regmap = {
.writeable_reg = pca953x_writeable_register,
.volatile_reg = pca953x_volatile_register,
+ .disable_locking = true,
.cache_type = REGCACHE_RBTREE,
- /* REVISIT: should be 0x7f but some 24 bit chips use REG_ADDR_AI */
- .max_register = 0xff,
+ .max_register = 0x7f,
};
-static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off,
- bool write, bool addrinc)
+static const struct regmap_config pca953x_ai_i2c_regmap = {
+ .reg_bits = 8,
+ .val_bits = 8,
+
+ .read_flag_mask = REG_ADDR_AI,
+ .write_flag_mask = REG_ADDR_AI,
+
+ .readable_reg = pca953x_readable_register,
+ .writeable_reg = pca953x_writeable_register,
+ .volatile_reg = pca953x_volatile_register,
+
+ .cache_type = REGCACHE_RBTREE,
+ .max_register = 0x7f,
+};
+
+static u8 pca953x_recalc_addr(struct pca953x_chip *chip, int reg, int off)
{
int bank_shift = pca953x_bank_shift(chip);
int addr = (reg & PCAL_GPIO_MASK) << bank_shift;
int pinctrl = (reg & PCAL_PINCTRL_MASK) << 1;
u8 regaddr = pinctrl | addr | (off / BANK_SZ);
- /* Single byte read doesn't need AI bit set. */
- if (!addrinc)
- return regaddr;
-
- /* Chips with 24 and more GPIOs always support Auto Increment */
- if (write && NBANK(chip) > 2)
- regaddr |= REG_ADDR_AI;
-
- /* PCA9575 needs address-increment on multi-byte writes */
- if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE)
- regaddr |= REG_ADDR_AI;
-
return regaddr;
}
static int pca953x_write_regs(struct pca953x_chip *chip, int reg, unsigned long *val)
{
- u8 regaddr = pca953x_recalc_addr(chip, reg, 0, true, true);
+ u8 regaddr = pca953x_recalc_addr(chip, reg, 0);
u8 value[MAX_BANK];
int i, ret;
@@ -354,7 +356,7 @@ static int pca953x_write_regs(struct pca953x_chip *chip, int reg, unsigned long
static int pca953x_read_regs(struct pca953x_chip *chip, int reg, unsigned long *val)
{
- u8 regaddr = pca953x_recalc_addr(chip, reg, 0, false, true);
+ u8 regaddr = pca953x_recalc_addr(chip, reg, 0);
u8 value[MAX_BANK];
int i, ret;
@@ -373,8 +375,7 @@ static int pca953x_read_regs(struct pca953x_chip *chip, int reg, unsigned long *
static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off)
{
struct pca953x_chip *chip = gpiochip_get_data(gc);
- u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off,
- true, false);
+ u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off);
u8 bit = BIT(off % BANK_SZ);
int ret;
@@ -388,10 +389,8 @@ static int pca953x_gpio_direction_output(struct gpio_chip *gc,
unsigned off, int val)
{
struct pca953x_chip *chip = gpiochip_get_data(gc);
- u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off,
- true, false);
- u8 outreg = pca953x_recalc_addr(chip, chip->regs->output, off,
- true, false);
+ u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off);
+ u8 outreg = pca953x_recalc_addr(chip, chip->regs->output, off);
u8 bit = BIT(off % BANK_SZ);
int ret;
@@ -411,8 +410,7 @@ exit:
static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off)
{
struct pca953x_chip *chip = gpiochip_get_data(gc);
- u8 inreg = pca953x_recalc_addr(chip, chip->regs->input, off,
- true, false);
+ u8 inreg = pca953x_recalc_addr(chip, chip->regs->input, off);
u8 bit = BIT(off % BANK_SZ);
u32 reg_val;
int ret;
@@ -436,8 +434,7 @@ static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off)
static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val)
{
struct pca953x_chip *chip = gpiochip_get_data(gc);
- u8 outreg = pca953x_recalc_addr(chip, chip->regs->output, off,
- true, false);
+ u8 outreg = pca953x_recalc_addr(chip, chip->regs->output, off);
u8 bit = BIT(off % BANK_SZ);
mutex_lock(&chip->i2c_lock);
@@ -448,8 +445,7 @@ static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val)
static int pca953x_gpio_get_direction(struct gpio_chip *gc, unsigned off)
{
struct pca953x_chip *chip = gpiochip_get_data(gc);
- u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off,
- true, false);
+ u8 dirreg = pca953x_recalc_addr(chip, chip->regs->direction, off);
u8 bit = BIT(off % BANK_SZ);
u32 reg_val;
int ret;
@@ -466,6 +462,23 @@ static int pca953x_gpio_get_direction(struct gpio_chip *gc, unsigned off)
return GPIO_LINE_DIRECTION_OUT;
}
+static int pca953x_gpio_get_multiple(struct gpio_chip *gc,
+ unsigned long *mask, unsigned long *bits)
+{
+ struct pca953x_chip *chip = gpiochip_get_data(gc);
+ DECLARE_BITMAP(reg_val, MAX_LINE);
+ int ret;
+
+ mutex_lock(&chip->i2c_lock);
+ ret = pca953x_read_regs(chip, chip->regs->input, reg_val);
+ mutex_unlock(&chip->i2c_lock);
+ if (ret)
+ return ret;
+
+ bitmap_replace(bits, bits, reg_val, mask, gc->ngpio);
+ return 0;
+}
+
static void pca953x_gpio_set_multiple(struct gpio_chip *gc,
unsigned long *mask, unsigned long *bits)
{
@@ -489,10 +502,8 @@ static int pca953x_gpio_set_pull_up_down(struct pca953x_chip *chip,
unsigned int offset,
unsigned long config)
{
- u8 pull_en_reg = pca953x_recalc_addr(chip, PCAL953X_PULL_EN, offset,
- true, false);
- u8 pull_sel_reg = pca953x_recalc_addr(chip, PCAL953X_PULL_SEL, offset,
- true, false);
+ u8 pull_en_reg = pca953x_recalc_addr(chip, PCAL953X_PULL_EN, offset);
+ u8 pull_sel_reg = pca953x_recalc_addr(chip, PCAL953X_PULL_SEL, offset);
u8 bit = BIT(offset % BANK_SZ);
int ret;
@@ -551,6 +562,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios)
gc->get = pca953x_gpio_get_value;
gc->set = pca953x_gpio_set_value;
gc->get_direction = pca953x_gpio_get_direction;
+ gc->get_multiple = pca953x_gpio_get_multiple;
gc->set_multiple = pca953x_gpio_set_multiple;
gc->set_config = pca953x_gpio_set_config;
gc->can_sleep = true;
@@ -863,6 +875,7 @@ static int pca953x_probe(struct i2c_client *client,
int ret;
u32 invert = 0;
struct regulator *reg;
+ const struct regmap_config *regmap_config;
chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL);
if (chip == NULL)
@@ -925,7 +938,17 @@ static int pca953x_probe(struct i2c_client *client,
i2c_set_clientdata(client, chip);
- chip->regmap = devm_regmap_init_i2c(client, &pca953x_i2c_regmap);
+ pca953x_setup_gpio(chip, chip->driver_data & PCA_GPIO_MASK);
+
+ if (NBANK(chip) > 2 || PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE) {
+ dev_info(&client->dev, "using AI\n");
+ regmap_config = &pca953x_ai_i2c_regmap;
+ } else {
+ dev_info(&client->dev, "using no AI\n");
+ regmap_config = &pca953x_i2c_regmap;
+ }
+
+ chip->regmap = devm_regmap_init_i2c(client, regmap_config);
if (IS_ERR(chip->regmap)) {
ret = PTR_ERR(chip->regmap);
goto err_exit;
@@ -956,7 +979,6 @@ static int pca953x_probe(struct i2c_client *client,
/* initialize cached registers from their original values.
* we can't share this chip with another i2c master.
*/
- pca953x_setup_gpio(chip, chip->driver_data & PCA_GPIO_MASK);
if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE) {
chip->regs = &pca953x_regs;
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index e241fb884c12..f1b53dd1df1a 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -16,6 +16,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
+#include <linux/module.h>
#include <linux/bitops.h>
#include <linux/gpio/driver.h>
#include <linux/device.h>
@@ -408,6 +409,7 @@ static const struct amba_id pl061_ids[] = {
},
{ 0, 0 },
};
+MODULE_DEVICE_TABLE(amba, pl061_ids);
static struct amba_driver pl061_gpio_driver = {
.drv = {
@@ -419,9 +421,6 @@ static struct amba_driver pl061_gpio_driver = {
.id_table = pl061_ids,
.probe = pl061_probe,
};
+module_amba_driver(pl061_gpio_driver);
-static int __init pl061_gpio_init(void)
-{
- return amba_driver_register(&pl061_gpio_driver);
-}
-device_initcall(pl061_gpio_init);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpio/gpio-tegra186.c b/drivers/gpio/gpio-tegra186.c
index 79b553dc39a3..178e9128ded0 100644
--- a/drivers/gpio/gpio-tegra186.c
+++ b/drivers/gpio/gpio-tegra186.c
@@ -894,6 +894,7 @@ static const struct of_device_id tegra186_gpio_of_match[] = {
/* sentinel */
}
};
+MODULE_DEVICE_TABLE(of, tegra186_gpio_of_match);
static struct platform_driver tegra186_gpio_driver = {
.driver = {
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c
index 25d86441666e..b45bfa9baa26 100644
--- a/drivers/gpio/gpio-xgene-sb.c
+++ b/drivers/gpio/gpio-xgene-sb.c
@@ -122,7 +122,7 @@ static int xgene_gpio_sb_to_irq(struct gpio_chip *gc, u32 gpio)
fwspec.fwnode = gc->parent->fwnode;
fwspec.param_count = 2;
fwspec.param[0] = GPIO_TO_HWIRQ(priv, gpio);
- fwspec.param[1] = IRQ_TYPE_NONE;
+ fwspec.param[1] = IRQ_TYPE_EDGE_RISING;
return irq_create_fwspec_mapping(&fwspec);
}
diff --git a/drivers/gpio/gpiolib-devprop.c b/drivers/gpio/gpiolib-devprop.c
index 53781b253986..26741032fa9e 100644
--- a/drivers/gpio/gpiolib-devprop.c
+++ b/drivers/gpio/gpiolib-devprop.c
@@ -37,8 +37,11 @@ void devprop_gpiochip_set_names(struct gpio_chip *chip,
if (count < 0)
return;
- if (count > gdev->ngpio)
+ if (count > gdev->ngpio) {
+ dev_warn(&gdev->dev, "gpio-line-names is length %d but should be at most length %d",
+ count, gdev->ngpio);
count = gdev->ngpio;
+ }
names = kcalloc(count, sizeof(*names), GFP_KERNEL);
if (!names)
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index ccc449df3792..2c5dd1349f16 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -344,6 +344,12 @@ struct gpio_desc *gpiod_get_from_of_node(struct device_node *node,
if (transitory)
lflags |= GPIO_TRANSITORY;
+ if (flags & OF_GPIO_PULL_UP)
+ lflags |= GPIO_PULL_UP;
+
+ if (flags & OF_GPIO_PULL_DOWN)
+ lflags |= GPIO_PULL_DOWN;
+
ret = gpiod_configure_flags(desc, propname, lflags, dflags);
if (ret < 0) {
gpiod_put(desc);
@@ -585,6 +591,10 @@ static struct gpio_desc *of_parse_own_gpio(struct device_node *np,
*lflags |= GPIO_ACTIVE_LOW;
if (xlate_flags & OF_GPIO_TRANSITORY)
*lflags |= GPIO_TRANSITORY;
+ if (xlate_flags & OF_GPIO_PULL_UP)
+ *lflags |= GPIO_PULL_UP;
+ if (xlate_flags & OF_GPIO_PULL_DOWN)
+ *lflags |= GPIO_PULL_DOWN;
if (of_property_read_bool(np, "input"))
*dflags |= GPIOD_IN;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 06:39:49 +0000