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path: root/drivers/pinctrl/samsung/pinctrl-exynos5440.c
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Diffstat (limited to 'drivers/pinctrl/samsung/pinctrl-exynos5440.c')
-rw-r--r--drivers/pinctrl/samsung/pinctrl-exynos5440.c90
1 files changed, 25 insertions, 65 deletions
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos5440.c b/drivers/pinctrl/samsung/pinctrl-exynos5440.c
index f5619fb50..9ce0b8619 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos5440.c
@@ -44,9 +44,7 @@
#define PIN_NAME_LENGTH 10
#define GROUP_SUFFIX "-grp"
-#define GSUFFIX_LEN sizeof(GROUP_SUFFIX)
#define FUNCTION_SUFFIX "-mux"
-#define FSUFFIX_LEN sizeof(FUNCTION_SUFFIX)
/*
* pin configuration type and its value are packed together into a 16-bits.
@@ -205,22 +203,17 @@ static int exynos5440_dt_node_to_map(struct pinctrl_dev *pctldev,
/* Allocate memory for pin-map entries */
map = kzalloc(sizeof(*map) * map_cnt, GFP_KERNEL);
- if (!map) {
- dev_err(dev, "could not alloc memory for pin-maps\n");
+ if (!map)
return -ENOMEM;
- }
*nmaps = 0;
/*
* Allocate memory for pin group name. The pin group name is derived
* from the node name from which these map entries are be created.
*/
- gname = kzalloc(strlen(np->name) + GSUFFIX_LEN, GFP_KERNEL);
- if (!gname) {
- dev_err(dev, "failed to alloc memory for group name\n");
+ gname = kasprintf(GFP_KERNEL, "%s%s", np->name, GROUP_SUFFIX);
+ if (!gname)
goto free_map;
- }
- snprintf(gname, strlen(np->name) + 4, "%s%s", np->name, GROUP_SUFFIX);
/*
* don't have config options? then skip over to creating function
@@ -231,10 +224,8 @@ static int exynos5440_dt_node_to_map(struct pinctrl_dev *pctldev,
/* Allocate memory for config entries */
cfg = kzalloc(sizeof(*cfg) * cfg_cnt, GFP_KERNEL);
- if (!cfg) {
- dev_err(dev, "failed to alloc memory for configs\n");
+ if (!cfg)
goto free_gname;
- }
/* Prepare a list of config settings */
for (idx = 0, cfg_cnt = 0; idx < ARRAY_SIZE(pcfgs); idx++) {
@@ -254,13 +245,10 @@ static int exynos5440_dt_node_to_map(struct pinctrl_dev *pctldev,
skip_cfgs:
/* create the function map entry */
if (of_find_property(np, "samsung,exynos5440-pin-function", NULL)) {
- fname = kzalloc(strlen(np->name) + FSUFFIX_LEN, GFP_KERNEL);
- if (!fname) {
- dev_err(dev, "failed to alloc memory for func name\n");
+ fname = kasprintf(GFP_KERNEL,
+ "%s%s", np->name, FUNCTION_SUFFIX);
+ if (!fname)
goto free_cfg;
- }
- snprintf(fname, strlen(np->name) + 4, "%s%s", np->name,
- FUNCTION_SUFFIX);
map[*nmaps].data.mux.group = gname;
map[*nmaps].data.mux.function = fname;
@@ -651,10 +639,8 @@ static int exynos5440_pinctrl_parse_dt_pins(struct platform_device *pdev,
}
*pin_list = devm_kzalloc(dev, *npins * sizeof(**pin_list), GFP_KERNEL);
- if (!*pin_list) {
- dev_err(dev, "failed to allocate memory for pin list\n");
+ if (!*pin_list)
return -ENOMEM;
- }
return of_property_read_u32_array(cfg_np, "samsung,exynos5440-pins",
*pin_list, *npins);
@@ -682,17 +668,15 @@ static int exynos5440_pinctrl_parse_dt(struct platform_device *pdev,
return -EINVAL;
groups = devm_kzalloc(dev, grp_cnt * sizeof(*groups), GFP_KERNEL);
- if (!groups) {
- dev_err(dev, "failed allocate memory for ping group list\n");
+ if (!groups)
return -EINVAL;
- }
+
grp = groups;
functions = devm_kzalloc(dev, grp_cnt * sizeof(*functions), GFP_KERNEL);
- if (!functions) {
- dev_err(dev, "failed to allocate memory for function list\n");
+ if (!functions)
return -EINVAL;
- }
+
func = functions;
/*
@@ -710,14 +694,10 @@ static int exynos5440_pinctrl_parse_dt(struct platform_device *pdev,
}
/* derive pin group name from the node name */
- gname = devm_kzalloc(dev, strlen(cfg_np->name) + GSUFFIX_LEN,
- GFP_KERNEL);
- if (!gname) {
- dev_err(dev, "failed to alloc memory for group name\n");
+ gname = devm_kasprintf(dev, GFP_KERNEL,
+ "%s%s", cfg_np->name, GROUP_SUFFIX);
+ if (!gname)
return -ENOMEM;
- }
- snprintf(gname, strlen(cfg_np->name) + 4, "%s%s", cfg_np->name,
- GROUP_SUFFIX);
grp->name = gname;
grp->pins = pin_list;
@@ -731,22 +711,15 @@ skip_to_pin_function:
continue;
/* derive function name from the node name */
- fname = devm_kzalloc(dev, strlen(cfg_np->name) + FSUFFIX_LEN,
- GFP_KERNEL);
- if (!fname) {
- dev_err(dev, "failed to alloc memory for func name\n");
+ fname = devm_kasprintf(dev, GFP_KERNEL,
+ "%s%s", cfg_np->name, FUNCTION_SUFFIX);
+ if (!fname)
return -ENOMEM;
- }
- snprintf(fname, strlen(cfg_np->name) + 4, "%s%s", cfg_np->name,
- FUNCTION_SUFFIX);
func->name = fname;
func->groups = devm_kzalloc(dev, sizeof(char *), GFP_KERNEL);
- if (!func->groups) {
- dev_err(dev, "failed to alloc memory for group list "
- "in pin function");
+ if (!func->groups)
return -ENOMEM;
- }
func->groups[0] = gname;
func->num_groups = gname ? 1 : 0;
func->function = function;
@@ -774,10 +747,8 @@ static int exynos5440_pinctrl_register(struct platform_device *pdev,
int pin, ret;
ctrldesc = devm_kzalloc(dev, sizeof(*ctrldesc), GFP_KERNEL);
- if (!ctrldesc) {
- dev_err(dev, "could not allocate memory for pinctrl desc\n");
+ if (!ctrldesc)
return -ENOMEM;
- }
ctrldesc->name = "exynos5440-pinctrl";
ctrldesc->owner = THIS_MODULE;
@@ -787,10 +758,8 @@ static int exynos5440_pinctrl_register(struct platform_device *pdev,
pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
EXYNOS5440_MAX_PINS, GFP_KERNEL);
- if (!pindesc) {
- dev_err(&pdev->dev, "mem alloc for pin descriptors failed\n");
+ if (!pindesc)
return -ENOMEM;
- }
ctrldesc->pins = pindesc;
ctrldesc->npins = EXYNOS5440_MAX_PINS;
@@ -804,10 +773,8 @@ static int exynos5440_pinctrl_register(struct platform_device *pdev,
*/
pin_names = devm_kzalloc(&pdev->dev, sizeof(char) * PIN_NAME_LENGTH *
ctrldesc->npins, GFP_KERNEL);
- if (!pin_names) {
- dev_err(&pdev->dev, "mem alloc for pin names failed\n");
+ if (!pin_names)
return -ENOMEM;
- }
/* for each pin, set the name of the pin */
for (pin = 0; pin < ctrldesc->npins; pin++) {
@@ -844,10 +811,8 @@ static int exynos5440_gpiolib_register(struct platform_device *pdev,
int ret;
gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
- if (!gc) {
- dev_err(&pdev->dev, "mem alloc for gpio_chip failed\n");
+ if (!gc)
return -ENOMEM;
- }
priv->gc = gc;
gc->base = 0;
@@ -929,7 +894,6 @@ static int exynos5440_gpio_irq_map(struct irq_domain *h, unsigned int virq,
irq_set_chip_data(virq, d);
irq_set_chip_and_handler(virq, &exynos5440_gpio_irq_chip,
handle_level_irq);
- set_irq_flags(virq, IRQF_VALID);
return 0;
}
@@ -949,10 +913,8 @@ static int exynos5440_gpio_irq_init(struct platform_device *pdev,
intd = devm_kzalloc(dev, sizeof(*intd) * EXYNOS5440_MAX_GPIO_INT,
GFP_KERNEL);
- if (!intd) {
- dev_err(dev, "failed to allocate memory for gpio intr data\n");
+ if (!intd)
return -ENOMEM;
- }
for (i = 0; i < EXYNOS5440_MAX_GPIO_INT; i++) {
irq = irq_of_parse_and_map(dev->of_node, i);
@@ -995,10 +957,8 @@ static int exynos5440_pinctrl_probe(struct platform_device *pdev)
}
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv) {
- dev_err(dev, "could not allocate memory for private data\n");
+ if (!priv)
return -ENOMEM;
- }
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
priv->reg_base = devm_ioremap_resource(&pdev->dev, res);
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-18 18:25:26 +0000