From 6ca6bcafb74d2dc43a5082c1b7caf6b2aa453c2d Mon Sep 17 00:00:00 2001
From: Nikita Shubin <n.shubin@yadro.com>
Date: Wed, 10 Nov 2021 12:42:28 +0300
Subject: lib: utils/i2c: Add simple FDT based I2C framework
FDT based I2C framework on the top of I2C library.
The drivers are probed on demand by fdt_i2c_adapter_get
function.
Tested-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Tested-by: Alexandre Ghiti <alexandre.ghiti@canonical.com>
Signed-off-by: Nikita Shubin <n.shubin@yadro.com>
---
include/sbi_utils/i2c/fdt_i2c.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 include/sbi_utils/i2c/fdt_i2c.h
(limited to 'include')
diff --git a/include/sbi_utils/i2c/fdt_i2c.h b/include/sbi_utils/i2c/fdt_i2c.h
new file mode 100644
index 0000000..c6e3339
--- /dev/null
+++ b/include/sbi_utils/i2c/fdt_i2c.h
@@ -0,0 +1,26 @@
+/*
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2021 YADRO
+ *
+ * Authors:
+ * Nikita Shubin <n.shubin@yadro.com>
+ */
+
+#ifndef __FDT_I2C_H__
+#define __FDT_I2C_H__
+
+#include <sbi_utils/i2c/i2c.h>
+
+/** FDT based I2C adapter driver */
+struct fdt_i2c_adapter {
+ const struct fdt_match *match_table;
+ int (*init)(void *fdt, int nodeoff,
+ const struct fdt_match *match);
+};
+
+/** Get I2C adapter identified by nodeoff */
+int fdt_i2c_adapter_get(void *fdt, int nodeoff,
+ struct i2c_adapter **out_adapter);
+
+#endif
--
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