cmd: List all uclass devices regardless of probe error

There are a few commands that iterate uclass with
uclass_first_device/uclass_next_device or the _err variant.

Use the _check class iterator variant to get devices that fail to probe
as well, and print the status.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

cmd/adc.c

@@ -12,23 +12,19 @@ static int do_adc_list(struct cmd_tbl *cmdtp, int flag, int argc,
 		       char *const argv[])
 {
 	struct udevice *dev;
-	int ret;
+	int ret, err;
 
-	ret = uclass_first_device_err(UCLASS_ADC, &dev);
+	ret = err = uclass_first_device_check(UCLASS_ADC, &dev);
-	if (ret) {
+
-		printf("No available ADC device\n");
+	while (dev) {
-		return CMD_RET_FAILURE;
+		printf("- %s status: %i\n", dev->name, ret);
+
+		ret = uclass_next_device_check(&dev);
+		if (ret)
+			err = ret;
 	}
 
-	do {
+	return err ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
-		printf("- %s\n", dev->name);
-
-		ret = uclass_next_device(&dev);
-		if (ret)
-			return CMD_RET_FAILURE;
-	} while (dev);
-
-	return CMD_RET_SUCCESS;
 }
 
 static int do_adc_info(struct cmd_tbl *cmdtp, int flag, int argc,

cmd/demo.c

@@ -64,20 +64,23 @@ static int do_demo_light(struct cmd_tbl *cmdtp, int flag, int argc,
 int do_demo_list(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct udevice *dev;
-	int i, ret;
+	int i, ret, err = 0;
 
 	puts("Demo uclass entries:\n");
 
-	for (i = 0, ret = uclass_first_device(UCLASS_DEMO, &dev);
+	for (i = 0, ret = uclass_first_device_check(UCLASS_DEMO, &dev);
 	     dev;
-	     ret = uclass_next_device(&dev)) {
+	     ret = uclass_next_device_check(&dev)) {
-		printf("entry %d - instance %08x, ops %08x, plat %08x\n",
+		printf("entry %d - instance %08x, ops %08x, plat %08x, status %i\n",
 		       i++, (uint)map_to_sysmem(dev),
 		       (uint)map_to_sysmem(dev->driver->ops),
-		       (uint)map_to_sysmem(dev_get_plat(dev)));
+		       (uint)map_to_sysmem(dev_get_plat(dev)),
+		       ret);
+		if (ret)
+			err = ret;
 	}
 
-	return cmd_process_error(cmdtp, ret);
+	return cmd_process_error(cmdtp, err);
 }
 
 static struct cmd_tbl demo_commands[] = {

cmd/gpio.c

@@ -77,17 +77,24 @@ static int do_gpio_status(bool all, const char *gpio_name)
 	struct udevice *dev;
 	int banklen;
 	int flags;
-	int ret;
+	int ret, err = 0;
 
 	flags = 0;
 	if (gpio_name && !*gpio_name)
 		gpio_name = NULL;
-	for (ret = uclass_first_device(UCLASS_GPIO, &dev);
+	for (ret = uclass_first_device_check(UCLASS_GPIO, &dev);
 	     dev;
-	     ret = uclass_next_device(&dev)) {
+	     ret = uclass_next_device_check(&dev)) {
 		const char *bank_name;
 		int num_bits;
 
+		if (ret) {
+			printf("GPIO device %s probe error %i\n",
+			       dev->name, ret);
+			err = ret;
+			continue;
+		}
+
 		flags |= FLAG_SHOW_BANK;
 		if (all)
 			flags |= FLAG_SHOW_ALL;
@@ -120,7 +127,7 @@ static int do_gpio_status(bool all, const char *gpio_name)
 			flags |= FLAG_SHOW_NEWLINE;
 	}
 
-	return ret;
+	return err;
 }
 #endif
 

cmd/pmic.c

@@ -51,25 +51,26 @@ static int do_list(struct cmd_tbl *cmdtp, int flag, int argc,
 		   char *const argv[])
 {
 	struct udevice *dev;
-	int ret;
+	int ret, err = 0;
 
 	printf("| %-*.*s| %-*.*s| %s @ %s\n",
 	       LIMIT_DEV, LIMIT_DEV, "Name",
 	       LIMIT_PARENT, LIMIT_PARENT, "Parent name",
 	       "Parent uclass", "seq");
 
-	for (ret = uclass_first_device(UCLASS_PMIC, &dev); dev;
+	for (ret = uclass_first_device_check(UCLASS_PMIC, &dev); dev;
-	     ret = uclass_next_device(&dev)) {
+	     ret = uclass_next_device_check(&dev)) {
 		if (ret)
-			continue;
+			err = ret;
 
-		printf("| %-*.*s| %-*.*s| %s @ %d\n",
+		printf("| %-*.*s| %-*.*s| %s @ %d | status: %i\n",
 		       LIMIT_DEV, LIMIT_DEV, dev->name,
 		       LIMIT_PARENT, LIMIT_PARENT, dev->parent->name,
-		       dev_get_uclass_name(dev->parent), dev_seq(dev->parent));
+		       dev_get_uclass_name(dev->parent), dev_seq(dev->parent),
+		       ret);
 	}
 
-	if (ret)
+	if (err)
 		return CMD_RET_FAILURE;
 
 	return CMD_RET_SUCCESS;

cmd/regulator.c

@@ -205,7 +205,7 @@ static void do_status_detail(struct udevice *dev,
 	constraint(" * mode id:", mode, mode_name);
 }
 
-static void do_status_line(struct udevice *dev)
+static void do_status_line(struct udevice *dev, int status)
 {
 	struct dm_regulator_uclass_plat *pdata;
 	int current, value, mode;
@@ -231,6 +231,7 @@ static void do_status_line(struct udevice *dev)
 		printf("%-10s", mode_name);
 	else
 		printf("%-10s", "-");
+	printf(" %i", status);
 	printf("\n");
 }
 
@@ -250,11 +251,11 @@ static int do_status(struct cmd_tbl *cmdtp, int flag, int argc,
 	}
 
 	/* Show all of them in a list, probing them as needed */
-	printf("%-20s %-10s %10s %10s %-10s\n", "Name", "Enabled", "uV", "mA",
+	printf("%-20s %-10s %10s %10s %-10s %s\n", "Name", "Enabled", "uV", "mA",
-	       "Mode");
+	       "Mode", "Status");
-	for (ret = uclass_first_device(UCLASS_REGULATOR, &dev); dev;
+	for (ret = uclass_first_device_check(UCLASS_REGULATOR, &dev); dev;
-	     ret = uclass_next_device(&dev))
+	     ret = uclass_next_device_check(&dev))
-		do_status_line(dev);
+		do_status_line(dev, ret);
 
 	return CMD_RET_SUCCESS;
 }