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authorTom Rini <trini@konsulko.com>2019-01-21 11:59:21 -0500
committerTom Rini <trini@konsulko.com>2019-01-21 11:59:21 -0500
commite8ddbefccd0193340ebbe6fe53c5490624b7c110 (patch)
tree7d42f09133a50b773ffd2ba213883b23c5f4265f /board/alliedtelesis/common/gpio_hog.c
parent27fb313dd639efc72beb08124fe4aa37bfd2c299 (diff)
parent0e31666dfa043ab71fb1fbbba4feacfe8af3e06b (diff)
Merge git://git.denx.de/u-boot-marvell
- Sync Armada-38x dts with Linux 4.20 from Chris - Misc changes and enhancements to Turris Mox (v4) from Marek - Reserve PSCI area for Armada 8k from Heinrich - New Allied Telesis x530 board (Armada-385) from Chris - Misc minor changes (defconfig etc)
Diffstat (limited to 'board/alliedtelesis/common/gpio_hog.c')
-rw-r--r--board/alliedtelesis/common/gpio_hog.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/board/alliedtelesis/common/gpio_hog.c b/board/alliedtelesis/common/gpio_hog.c
new file mode 100644
index 00000000000..1f87b3ac1b7
--- /dev/null
+++ b/board/alliedtelesis/common/gpio_hog.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Allied Telesis Labs
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/gpio.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int gpio_hog_list(struct gpio_desc *gpiod, int max_count,
+ const char *node_name, const char *gpio_name, int value)
+{
+ int node;
+ int count;
+ int i;
+
+ node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, node_name);
+ if (node < 0)
+ return -ENODEV;
+
+ if (!dm_gpio_is_valid(gpiod)) {
+ count =
+ gpio_request_list_by_name_nodev(offset_to_ofnode(node),
+ gpio_name, gpiod, max_count,
+ GPIOD_IS_OUT);
+ if (count < 0)
+ return count;
+
+ for (i = 0; i < count; i++)
+ dm_gpio_set_value(&gpiod[i], value);
+ }
+
+ return 0;
+}