1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/eeprom_93xx46.h b/include/linux/eeprom_93xx46.h
new file mode 100644
index 000000000..34c2175e6
--- /dev/null
+++ b/include/linux/eeprom_93xx46.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Module: eeprom_93xx46
+ * platform description for 93xx46 EEPROMs.
+ */
+#include <linux/gpio/consumer.h>
+
+struct eeprom_93xx46_platform_data {
+	unsigned char	flags;
+#define EE_ADDR8	0x01		/*  8 bit addr. cfg */
+#define EE_ADDR16	0x02		/* 16 bit addr. cfg */
+#define EE_READONLY	0x08		/* forbid writing */
+#define EE_SIZE1K	0x10		/* 1 kb of data, that is a 93xx46 */
+#define EE_SIZE2K	0x20		/* 2 kb of data, that is a 93xx56 */
+#define EE_SIZE4K	0x40		/* 4 kb of data, that is a 93xx66 */
+
+	unsigned int	quirks;
+/* Single word read transfers only; no sequential read. */
+#define EEPROM_93XX46_QUIRK_SINGLE_WORD_READ		(1 << 0)
+/* Instructions such as EWEN are (addrlen + 2) in length. */
+#define EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH		(1 << 1)
+/* Add extra cycle after address during a read */
+#define EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE		BIT(2)
+
+	/*
+	 * optional hooks to control additional logic
+	 * before and after spi transfer.
+	 */
+	void (*prepare)(void *);
+	void (*finish)(void *);
+	struct gpio_desc *select;
+};