tools: gpio: rename nlines to num_lines

Rename nlines to num_lines to be consistent with other usage for fields
describing the number of entries in an array.
Signed-off-by: Kent Gibson <warthog618@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

tools/gpio/gpio-hammer.c

@@ -22,7 +22,7 @@
 #include <linux/gpio.h>
 #include "gpio-utils.h"
 
-int hammer_device(const char *device_name, unsigned int *lines, int nlines,
+int hammer_device(const char *device_name, unsigned int *lines, int num_lines,
 		  unsigned int loops)
 {
 	struct gpiohandle_data data;
@@ -33,7 +33,7 @@ int hammer_device(const char *device_name, unsigned int *lines, int nlines,
 	unsigned int iteration = 0;
 
 	memset(&data.values, 0, sizeof(data.values));
-	ret = gpiotools_request_linehandle(device_name, lines, nlines,
+	ret = gpiotools_request_linehandle(device_name, lines, num_lines,
 					   GPIOHANDLE_REQUEST_OUTPUT, &data,
 					   "gpio-hammer");
 	if (ret < 0)
@@ -46,15 +46,15 @@ int hammer_device(const char *device_name, unsigned int *lines, int nlines,
 		goto exit_close_error;
 
 	fprintf(stdout, "Hammer lines [");
-	for (i = 0; i < nlines; i++) {
+	for (i = 0; i < num_lines; i++) {
 		fprintf(stdout, "%d", lines[i]);
-		if (i != (nlines - 1))
+		if (i != (num_lines - 1))
 			fprintf(stdout, ", ");
 	}
 	fprintf(stdout, "] on %s, initial states: [", device_name);
-	for (i = 0; i < nlines; i++) {
+	for (i = 0; i < num_lines; i++) {
 		fprintf(stdout, "%d", data.values[i]);
-		if (i != (nlines - 1))
+		if (i != (num_lines - 1))
 			fprintf(stdout, ", ");
 	}
 	fprintf(stdout, "]\n");
@@ -63,7 +63,7 @@ int hammer_device(const char *device_name, unsigned int *lines, int nlines,
 	j = 0;
 	while (1) {
 		/* Invert all lines so we blink */
-		for (i = 0; i < nlines; i++)
+		for (i = 0; i < num_lines; i++)
 			data.values[i] = !data.values[i];
 
 		ret = gpiotools_set_values(fd, &data);
@@ -81,9 +81,9 @@ int hammer_device(const char *device_name, unsigned int *lines, int nlines,
 			j = 0;
 
 		fprintf(stdout, "[");
-		for (i = 0; i < nlines; i++) {
+		for (i = 0; i < num_lines; i++) {
 			fprintf(stdout, "%d: %d", lines[i], data.values[i]);
-			if (i != (nlines - 1))
+			if (i != (num_lines - 1))
 				fprintf(stdout, ", ");
 		}
 		fprintf(stdout, "]\r");
@@ -121,7 +121,7 @@ int main(int argc, char **argv)
 	const char *device_name = NULL;
 	unsigned int lines[GPIOHANDLES_MAX];
 	unsigned int loops = 0;
-	int nlines;
+	int num_lines;
 	int c;
 	int i;
 
@@ -158,11 +158,11 @@ int main(int argc, char **argv)
 		return -1;
 	}
 
-	nlines = i;
+	num_lines = i;
 
-	if (!device_name || !nlines) {
+	if (!device_name || !num_lines) {
 		print_usage();
 		return -1;
 	}
-	return hammer_device(device_name, lines, nlines, loops);
+	return hammer_device(device_name, lines, num_lines, loops);
 }

tools/gpio/gpio-utils.c

@@ -38,7 +38,7 @@
  *			such as "gpiochip0"
  * @lines:		An array desired lines, specified by offset
  *			index for the associated GPIO device.
- * @nline:		The number of lines to request.
+ * @num_lines:		The number of lines to request.
  * @flag:		The new flag for requsted gpio. Reference
  *			"linux/gpio.h" for the meaning of flag.
  * @data:		Default value will be set to gpio when flag is
@@ -56,7 +56,7 @@
  *			On failure return the errno.
  */
 int gpiotools_request_linehandle(const char *device_name, unsigned int *lines,
-				 unsigned int nlines, unsigned int flag,
+				 unsigned int num_lines, unsigned int flag,
 				 struct gpiohandle_data *data,
 				 const char *consumer_label)
 {
@@ -78,12 +78,12 @@ int gpiotools_request_linehandle(const char *device_name, unsigned int *lines,
 		goto exit_free_name;
 	}
 
-	for (i = 0; i < nlines; i++)
+	for (i = 0; i < num_lines; i++)
 		req.lineoffsets[i] = lines[i];
 
 	req.flags = flag;
 	strcpy(req.consumer_label, consumer_label);
-	req.lines = nlines;
+	req.lines = num_lines;
 	if (flag & GPIOHANDLE_REQUEST_OUTPUT)
 		memcpy(req.default_values, data, sizeof(req.default_values));
 
@@ -194,20 +194,20 @@ int gpiotools_get(const char *device_name, unsigned int line)
  *			such as "gpiochip0".
  * @lines:		An array desired lines, specified by offset
  *			index for the associated GPIO device.
- * @nline:		The number of lines to request.
+ * @num_lines:		The number of lines to request.
  * @data:		The array of values get from gpiochip.
  *
  * Return:		On success return 0;
  *			On failure return the errno.
  */
 int gpiotools_gets(const char *device_name, unsigned int *lines,
-		   unsigned int nlines, struct gpiohandle_data *data)
+		   unsigned int num_lines, struct gpiohandle_data *data)
 {
 	int fd;
 	int ret;
 	int ret_close;
 
-	ret = gpiotools_request_linehandle(device_name, lines, nlines,
+	ret = gpiotools_request_linehandle(device_name, lines, num_lines,
 					   GPIOHANDLE_REQUEST_INPUT, data,
 					   CONSUMER);
 	if (ret < 0)
@@ -245,7 +245,7 @@ int gpiotools_set(const char *device_name, unsigned int line,
  *			such as "gpiochip0".
  * @lines:		An array desired lines, specified by offset
  *			index for the associated GPIO device.
- * @nline:		The number of lines to request.
+ * @num_lines:		The number of lines to request.
  * @data:		The array of values set to gpiochip, must be
  *			0(low) or 1(high).
  *
@@ -253,11 +253,11 @@ int gpiotools_set(const char *device_name, unsigned int line,
  *			On failure return the errno.
  */
 int gpiotools_sets(const char *device_name, unsigned int *lines,
-		   unsigned int nlines, struct gpiohandle_data *data)
+		   unsigned int num_lines, struct gpiohandle_data *data)
 {
 	int ret;
 
-	ret = gpiotools_request_linehandle(device_name, lines, nlines,
+	ret = gpiotools_request_linehandle(device_name, lines, num_lines,
 					   GPIOHANDLE_REQUEST_OUTPUT, data,
 					   CONSUMER);
 	if (ret < 0)

tools/gpio/gpio-utils.h

@@ -23,7 +23,7 @@ static inline int check_prefix(const char *str, const char *prefix)
 }
 
 int gpiotools_request_linehandle(const char *device_name, unsigned int *lines,
-				 unsigned int nlines, unsigned int flag,
+				 unsigned int num_lines, unsigned int flag,
 				 struct gpiohandle_data *data,
 				 const char *consumer_label);
 int gpiotools_set_values(const int fd, struct gpiohandle_data *data);
@@ -32,10 +32,10 @@ int gpiotools_release_linehandle(const int fd);
 
 int gpiotools_get(const char *device_name, unsigned int line);
 int gpiotools_gets(const char *device_name, unsigned int *lines,
-		   unsigned int nlines, struct gpiohandle_data *data);
+		   unsigned int num_lines, struct gpiohandle_data *data);
 int gpiotools_set(const char *device_name, unsigned int line,
 		  unsigned int value);
 int gpiotools_sets(const char *device_name, unsigned int *lines,
-		   unsigned int nlines, struct gpiohandle_data *data);
+		   unsigned int num_lines, struct gpiohandle_data *data);
 
 #endif /* _GPIO_UTILS_H_ */