imx: ventana: update imx wdog external reset dt property

The devicetree property that was accepted upstream in the imx wdog driver
was 'fsl,ext-reset-output' not 'ext-reset-output'.

Therefore we will remove both of these properties to account for the mainline
kernels as well as the downstream vendor kernels.

This resolves issues with soft reboot failing to reset the IMX6 SoC on older
revision boards using Linux v4.9+

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

board/gateworks/gw_ventana/gw_ventana.c

@@ -1240,6 +1240,12 @@ void ft_board_pci_fixup(void *blob, bd_t *bd)
 }
 #endif /* if defined(CONFIG_CMD_PCI) */
 
+void ft_board_wdog_fixup(void *blob, const char *path)
+{
+	ft_delprop_path(blob, path, "ext-reset-output");
+	ft_delprop_path(blob, path, "fsl,ext-reset-output");
+}
+
 /*
  * called prior to booting kernel or by 'fdt boardsetup' command
  *
@@ -1331,13 +1337,13 @@ int ft_board_setup(void *blob, bd_t *bd)
 
 		/* GW54xx revE uses WDOG2_B as an external reset */
 		if (rev < 'E')
-			ft_delprop_path(blob, WDOG2_PATH, "ext-reset-output");
+			ft_board_wdog_fixup(blob, WDOG2_PATH);
 	}
 
 	else if (board_type == GW53xx) {
 		/* GW53xx revE uses WDOG1_B as an external reset */
 		if (rev < 'E')
-			ft_delprop_path(blob, WDOG1_PATH, "ext-reset-output");
+			ft_board_wdog_fixup(blob, WDOG1_PATH);
 	}
 
 	else if (board_type == GW51xx) {
@@ -1350,7 +1356,7 @@ int ft_board_setup(void *blob, bd_t *bd)
 
 		/* GW51xx revE uses WDOG1_B as an external reset */
 		if (rev < 'E')
-			ft_delprop_path(blob, WDOG1_PATH, "ext-reset-output");
+			ft_board_wdog_fixup(blob, WDOG1_PATH);
 	}
 
 	else if (board_type == GW52xx) {
@@ -1379,11 +1385,11 @@ int ft_board_setup(void *blob, bd_t *bd)
 
 		/* GW520x revE uses WDOG1_B as an external reset */
 		if (info->model[4] == '0' && rev < 'E')
-			ft_delprop_path(blob, WDOG1_PATH, "ext-reset-output");
+			ft_board_wdog_fixup(blob, WDOG1_PATH);
 
 		/* GW522x revB uses WDOG1_B as an external reset */
 		if (info->model[4] == '2' && rev < 'B')
-			ft_delprop_path(blob, WDOG1_PATH, "ext-reset-output");
+			ft_board_wdog_fixup(blob, WDOG1_PATH);
 
 		/* these have broken usd_vsel */
 		if (strstr((const char *)info->model, "SP318-B") ||
@@ -1432,13 +1438,13 @@ int ft_board_setup(void *blob, bd_t *bd)
 
 		/* GW551x revC uses WDOG1_B as an external reset */
 		if (rev < 'C')
-			ft_delprop_path(blob, WDOG1_PATH, "ext-reset-output");
+			ft_board_wdog_fixup(blob, WDOG1_PATH);
 	}
 
 	else if (board_type == GW552x) {
 		/* GW552x revC uses WDOG1_B as an external reset */
 		if (rev < 'C')
-			ft_delprop_path(blob, WDOG1_PATH, "ext-reset-output");
+			ft_board_wdog_fixup(blob, WDOG1_PATH);
 	}
 
 	/* remove no-1-8-v if UHS-I support is present */