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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2020-09-29 13:10:02 +0300
committerBartosz Golaszewski <bgolaszewski@baylibre.com>2020-09-30 11:52:11 +0300
commit148c2560c55b5d4a46849324498f4f0b14a8243d (patch)
tree242846269f599c7c6eb75282f014966545107380 /drivers/gpio/gpio-mockup.c
parent383bb2de4d494ec0a62a1ab2cd8438c04e9100bd (diff)
downloadlinux-148c2560c55b5d4a46849324498f4f0b14a8243d.tar.xz
gpio: mockup: pass the chip label as device property
While we do check the "chip-name" property in probe(), we never actually use it. Let's pass the chip label to the driver using device properties as we'll want to allow users to define their own once dynamically created chips are supported. The property is renamed to "chip-label" to not cause any confusion with the actual chip name which is of the form: "gpiochipX". If the "chip-label" property is missing, let's do what most devices in drivers/gpio/ do and use dev_name(). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/gpio/gpio-mockup.c')
-rw-r--r--drivers/gpio/gpio-mockup.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c
index 856ba5da1e8c..1466f480aacd 100644
--- a/drivers/gpio/gpio-mockup.c
+++ b/drivers/gpio/gpio-mockup.c
@@ -429,21 +429,14 @@ static int gpio_mockup_probe(struct platform_device *pdev)
if (rv)
return rv;
- rv = device_property_read_string(dev, "chip-name", &name);
+ rv = device_property_read_string(dev, "chip-label", &name);
if (rv)
- name = NULL;
+ name = dev_name(dev);
chip = devm_kzalloc(dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
- if (!name) {
- name = devm_kasprintf(dev, GFP_KERNEL,
- "%s-%c", pdev->name, pdev->id + 'A');
- if (!name)
- return -ENOMEM;
- }
-
mutex_init(&chip->lock);
gc = &chip->gc;
@@ -523,6 +516,7 @@ static int __init gpio_mockup_init(void)
int i, prop, num_chips, err = 0, base;
struct platform_device_info pdevinfo;
struct platform_device *pdev;
+ char chip_label[32];
u16 ngpio;
if ((gpio_mockup_num_ranges < 2) ||
@@ -556,6 +550,11 @@ static int __init gpio_mockup_init(void)
memset(&pdevinfo, 0, sizeof(pdevinfo));
prop = 0;
+ snprintf(chip_label, sizeof(chip_label),
+ "gpio-mockup-%c", i + 'A');
+ properties[prop++] = PROPERTY_ENTRY_STRING("chip-label",
+ chip_label);
+
base = gpio_mockup_range_base(i);
if (base >= 0)
properties[prop++] = PROPERTY_ENTRY_U32("gpio-base",