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diff --git a/include/linux/platform_data/si5351.h b/include/linux/platform_data/si5351.h
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+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Si5351A/B/C programmable clock generator platform_data.
+ */
+
+#ifndef __LINUX_PLATFORM_DATA_SI5351_H__
+#define __LINUX_PLATFORM_DATA_SI5351_H__
+
+/**
+ * enum si5351_pll_src - Si5351 pll clock source
+ * @SI5351_PLL_SRC_DEFAULT: default, do not change eeprom config
+ * @SI5351_PLL_SRC_XTAL: pll source clock is XTAL input
+ * @SI5351_PLL_SRC_CLKIN: pll source clock is CLKIN input (Si5351C only)
+ */
+enum si5351_pll_src {
+ SI5351_PLL_SRC_DEFAULT = 0,
+ SI5351_PLL_SRC_XTAL = 1,
+ SI5351_PLL_SRC_CLKIN = 2,
+};
+
+/**
+ * enum si5351_multisynth_src - Si5351 multisynth clock source
+ * @SI5351_MULTISYNTH_SRC_DEFAULT: default, do not change eeprom config
+ * @SI5351_MULTISYNTH_SRC_VCO0: multisynth source clock is VCO0
+ * @SI5351_MULTISYNTH_SRC_VCO1: multisynth source clock is VCO1/VXCO
+ */
+enum si5351_multisynth_src {
+ SI5351_MULTISYNTH_SRC_DEFAULT = 0,
+ SI5351_MULTISYNTH_SRC_VCO0 = 1,
+ SI5351_MULTISYNTH_SRC_VCO1 = 2,
+};
+
+/**
+ * enum si5351_clkout_src - Si5351 clock output clock source
+ * @SI5351_CLKOUT_SRC_DEFAULT: default, do not change eeprom config
+ * @SI5351_CLKOUT_SRC_MSYNTH_N: clkout N source clock is multisynth N
+ * @SI5351_CLKOUT_SRC_MSYNTH_0_4: clkout N source clock is multisynth 0 (N<4)
+ * or 4 (N>=4)
+ * @SI5351_CLKOUT_SRC_XTAL: clkout N source clock is XTAL
+ * @SI5351_CLKOUT_SRC_CLKIN: clkout N source clock is CLKIN (Si5351C only)
+ */
+enum si5351_clkout_src {
+ SI5351_CLKOUT_SRC_DEFAULT = 0,
+ SI5351_CLKOUT_SRC_MSYNTH_N = 1,
+ SI5351_CLKOUT_SRC_MSYNTH_0_4 = 2,
+ SI5351_CLKOUT_SRC_XTAL = 3,
+ SI5351_CLKOUT_SRC_CLKIN = 4,
+};
+
+/**
+ * enum si5351_drive_strength - Si5351 clock output drive strength
+ * @SI5351_DRIVE_DEFAULT: default, do not change eeprom config
+ * @SI5351_DRIVE_2MA: 2mA clock output drive strength
+ * @SI5351_DRIVE_4MA: 4mA clock output drive strength
+ * @SI5351_DRIVE_6MA: 6mA clock output drive strength
+ * @SI5351_DRIVE_8MA: 8mA clock output drive strength
+ */
+enum si5351_drive_strength {
+ SI5351_DRIVE_DEFAULT = 0,
+ SI5351_DRIVE_2MA = 2,
+ SI5351_DRIVE_4MA = 4,
+ SI5351_DRIVE_6MA = 6,
+ SI5351_DRIVE_8MA = 8,
+};
+
+/**
+ * enum si5351_disable_state - Si5351 clock output disable state
+ * @SI5351_DISABLE_DEFAULT: default, do not change eeprom config
+ * @SI5351_DISABLE_LOW: CLKx is set to a LOW state when disabled
+ * @SI5351_DISABLE_HIGH: CLKx is set to a HIGH state when disabled
+ * @SI5351_DISABLE_FLOATING: CLKx is set to a FLOATING state when
+ * disabled
+ * @SI5351_DISABLE_NEVER: CLKx is NEVER disabled
+ */
+enum si5351_disable_state {
+ SI5351_DISABLE_DEFAULT = 0,
+ SI5351_DISABLE_LOW,
+ SI5351_DISABLE_HIGH,
+ SI5351_DISABLE_FLOATING,
+ SI5351_DISABLE_NEVER,
+};
+
+/**
+ * struct si5351_clkout_config - Si5351 clock output configuration
+ * @clkout: clkout number
+ * @multisynth_src: multisynth source clock
+ * @clkout_src: clkout source clock
+ * @pll_master: if true, clkout can also change pll rate
+ * @pll_reset: if true, clkout can reset its pll
+ * @drive: output drive strength
+ * @rate: initial clkout rate, or default if 0
+ */
+struct si5351_clkout_config {
+ enum si5351_multisynth_src multisynth_src;
+ enum si5351_clkout_src clkout_src;
+ enum si5351_drive_strength drive;
+ enum si5351_disable_state disable_state;
+ bool pll_master;
+ bool pll_reset;
+ unsigned long rate;
+};
+
+/**
+ * struct si5351_platform_data - Platform data for the Si5351 clock driver
+ * @clk_xtal: xtal input clock
+ * @clk_clkin: clkin input clock
+ * @pll_src: array of pll source clock setting
+ * @clkout: array of clkout configuration
+ */
+struct si5351_platform_data {
+ enum si5351_pll_src pll_src[2];
+ struct si5351_clkout_config clkout[8];
+};
+
+#endif