sound/soc/stm/stm32_sai.h - linux - Git at Google

 /*
  * STM32 ALSA SoC Digital Audio Interface (SAI) driver.
  *
  * Copyright (C) 2016, STMicroelectronics - All Rights Reserved
  * Author(s): Olivier Moysan <olivier.moysan@st.com> for STMicroelectronics.
  *
  * License terms: GPL V2.0.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
  * details.
  */

 #include <linux/bitfield.h>

 /******************** SAI Register Map **************************************/

 /* Global configuration register */
 #define STM_SAI_GCR		0x00

 /* Sub-block A&B registers offsets, relative to A&B sub-block addresses */
 #define STM_SAI_CR1_REGX	0x00	/* A offset: 0x04. B offset: 0x24 */
 #define STM_SAI_CR2_REGX	0x04
 #define STM_SAI_FRCR_REGX	0x08
 #define STM_SAI_SLOTR_REGX	0x0C
 #define STM_SAI_IMR_REGX	0x10
 #define STM_SAI_SR_REGX		0x14
 #define STM_SAI_CLRFR_REGX	0x18
 #define STM_SAI_DR_REGX		0x1C

 /* Sub-block A registers, relative to sub-block A address */
 #define STM_SAI_PDMCR_REGX	0x40
 #define STM_SAI_PDMLY_REGX	0x44

 /******************** Bit definition for SAI_GCR register *******************/
 #define SAI_GCR_SYNCIN_SHIFT	0
 #define SAI_GCR_SYNCIN_WDTH	2
 #define SAI_GCR_SYNCIN_MASK	GENMASK(1, SAI_GCR_SYNCIN_SHIFT)
 #define SAI_GCR_SYNCIN_MAX	FIELD_GET(SAI_GCR_SYNCIN_MASK,\
 				SAI_GCR_SYNCIN_MASK)

 #define SAI_GCR_SYNCOUT_SHIFT	4
 #define SAI_GCR_SYNCOUT_MASK	GENMASK(5, SAI_GCR_SYNCOUT_SHIFT)

 /******************* Bit definition for SAI_XCR1 register *******************/
 #define SAI_XCR1_RX_TX_SHIFT	0
 #define SAI_XCR1_RX_TX		BIT(SAI_XCR1_RX_TX_SHIFT)
 #define SAI_XCR1_SLAVE_SHIFT	1
 #define SAI_XCR1_SLAVE		BIT(SAI_XCR1_SLAVE_SHIFT)

 #define SAI_XCR1_PRTCFG_SHIFT	2
 #define SAI_XCR1_PRTCFG_MASK	GENMASK(3, SAI_XCR1_PRTCFG_SHIFT)
 #define SAI_XCR1_PRTCFG_SET(x)	((x) << SAI_XCR1_PRTCFG_SHIFT)

 #define SAI_XCR1_DS_SHIFT	5
 #define SAI_XCR1_DS_MASK	GENMASK(7, SAI_XCR1_DS_SHIFT)
 #define SAI_XCR1_DS_SET(x)	((x) << SAI_XCR1_DS_SHIFT)

 #define SAI_XCR1_LSBFIRST_SHIFT	8
 #define SAI_XCR1_LSBFIRST	BIT(SAI_XCR1_LSBFIRST_SHIFT)
 #define SAI_XCR1_CKSTR_SHIFT	9
 #define SAI_XCR1_CKSTR		BIT(SAI_XCR1_CKSTR_SHIFT)

 #define SAI_XCR1_SYNCEN_SHIFT	10
 #define SAI_XCR1_SYNCEN_MASK	GENMASK(11, SAI_XCR1_SYNCEN_SHIFT)
 #define SAI_XCR1_SYNCEN_SET(x)	((x) << SAI_XCR1_SYNCEN_SHIFT)

 #define SAI_XCR1_MONO_SHIFT	12
 #define SAI_XCR1_MONO		BIT(SAI_XCR1_MONO_SHIFT)
 #define SAI_XCR1_OUTDRIV_SHIFT	13
 #define SAI_XCR1_OUTDRIV	BIT(SAI_XCR1_OUTDRIV_SHIFT)
 #define SAI_XCR1_SAIEN_SHIFT	16
 #define SAI_XCR1_SAIEN		BIT(SAI_XCR1_SAIEN_SHIFT)
 #define SAI_XCR1_DMAEN_SHIFT	17
 #define SAI_XCR1_DMAEN		BIT(SAI_XCR1_DMAEN_SHIFT)
 #define SAI_XCR1_NODIV_SHIFT	19
 #define SAI_XCR1_NODIV		BIT(SAI_XCR1_NODIV_SHIFT)

 #define SAI_XCR1_MCKDIV_SHIFT	20
 #define SAI_XCR1_MCKDIV_WIDTH(x)	(((x) == SAI_STM32F4) ? 4 : 6)
 #define SAI_XCR1_MCKDIV_MASK(x) GENMASK((SAI_XCR1_MCKDIV_SHIFT + (x) - 1),\
 				SAI_XCR1_MCKDIV_SHIFT)
 #define SAI_XCR1_MCKDIV_SET(x)	((x) << SAI_XCR1_MCKDIV_SHIFT)
 #define SAI_XCR1_MCKDIV_MAX(x)	((1 << SAI_XCR1_MCKDIV_WIDTH(x)) - 1)

 #define SAI_XCR1_OSR_SHIFT	26
 #define SAI_XCR1_OSR		BIT(SAI_XCR1_OSR_SHIFT)

 /******************* Bit definition for SAI_XCR2 register *******************/
 #define SAI_XCR2_FTH_SHIFT	0
 #define SAI_XCR2_FTH_MASK	GENMASK(2, SAI_XCR2_FTH_SHIFT)
 #define SAI_XCR2_FTH_SET(x)	((x) << SAI_XCR2_FTH_SHIFT)

 #define SAI_XCR2_FFLUSH_SHIFT	3
 #define SAI_XCR2_FFLUSH		BIT(SAI_XCR2_FFLUSH_SHIFT)
 #define SAI_XCR2_TRIS_SHIFT	4
 #define SAI_XCR2_TRIS		BIT(SAI_XCR2_TRIS_SHIFT)
 #define SAI_XCR2_MUTE_SHIFT	5
 #define SAI_XCR2_MUTE		BIT(SAI_XCR2_MUTE_SHIFT)
 #define SAI_XCR2_MUTEVAL_SHIFT	6
 #define SAI_XCR2_MUTEVAL	BIT(SAI_XCR2_MUTEVAL_SHIFT)

 #define SAI_XCR2_MUTECNT_SHIFT	7
 #define SAI_XCR2_MUTECNT_MASK	GENMASK(12, SAI_XCR2_MUTECNT_SHIFT)
 #define SAI_XCR2_MUTECNT_SET(x)	((x) << SAI_XCR2_MUTECNT_SHIFT)

 #define SAI_XCR2_CPL_SHIFT	13
 #define SAI_XCR2_CPL		BIT(SAI_XCR2_CPL_SHIFT)

 #define SAI_XCR2_COMP_SHIFT	14
 #define SAI_XCR2_COMP_MASK	GENMASK(15, SAI_XCR2_COMP_SHIFT)
 #define SAI_XCR2_COMP_SET(x)	((x) << SAI_XCR2_COMP_SHIFT)

 /****************** Bit definition for SAI_XFRCR register *******************/
 #define SAI_XFRCR_FRL_SHIFT	0
 #define SAI_XFRCR_FRL_MASK	GENMASK(7, SAI_XFRCR_FRL_SHIFT)
 #define SAI_XFRCR_FRL_SET(x)	((x) << SAI_XFRCR_FRL_SHIFT)

 #define SAI_XFRCR_FSALL_SHIFT	8
 #define SAI_XFRCR_FSALL_MASK	GENMASK(14, SAI_XFRCR_FSALL_SHIFT)
 #define SAI_XFRCR_FSALL_SET(x)	((x) << SAI_XFRCR_FSALL_SHIFT)

 #define SAI_XFRCR_FSDEF_SHIFT	16
 #define SAI_XFRCR_FSDEF		BIT(SAI_XFRCR_FSDEF_SHIFT)
 #define SAI_XFRCR_FSPOL_SHIFT	17
 #define SAI_XFRCR_FSPOL		BIT(SAI_XFRCR_FSPOL_SHIFT)
 #define SAI_XFRCR_FSOFF_SHIFT	18
 #define SAI_XFRCR_FSOFF		BIT(SAI_XFRCR_FSOFF_SHIFT)

 /****************** Bit definition for SAI_XSLOTR register ******************/
 #define SAI_XSLOTR_FBOFF_SHIFT	0
 #define SAI_XSLOTR_FBOFF_MASK	GENMASK(4, SAI_XSLOTR_FBOFF_SHIFT)
 #define SAI_XSLOTR_FBOFF_SET(x)	((x) << SAI_XSLOTR_FBOFF_SHIFT)

 #define SAI_XSLOTR_SLOTSZ_SHIFT	6
 #define SAI_XSLOTR_SLOTSZ_MASK	GENMASK(7, SAI_XSLOTR_SLOTSZ_SHIFT)
 #define SAI_XSLOTR_SLOTSZ_SET(x)	((x) << SAI_XSLOTR_SLOTSZ_SHIFT)

 #define SAI_XSLOTR_NBSLOT_SHIFT 8
 #define SAI_XSLOTR_NBSLOT_MASK	GENMASK(11, SAI_XSLOTR_NBSLOT_SHIFT)
 #define SAI_XSLOTR_NBSLOT_SET(x) ((x) << SAI_XSLOTR_NBSLOT_SHIFT)

 #define SAI_XSLOTR_SLOTEN_SHIFT	16
 #define SAI_XSLOTR_SLOTEN_WIDTH	16
 #define SAI_XSLOTR_SLOTEN_MASK	GENMASK(31, SAI_XSLOTR_SLOTEN_SHIFT)
 #define SAI_XSLOTR_SLOTEN_SET(x) ((x) << SAI_XSLOTR_SLOTEN_SHIFT)

 /******************* Bit definition for SAI_XIMR register *******************/
 #define SAI_XIMR_OVRUDRIE	BIT(0)
 #define SAI_XIMR_MUTEDETIE	BIT(1)
 #define SAI_XIMR_WCKCFGIE	BIT(2)
 #define SAI_XIMR_FREQIE		BIT(3)
 #define SAI_XIMR_CNRDYIE	BIT(4)
 #define SAI_XIMR_AFSDETIE	BIT(5)
 #define SAI_XIMR_LFSDETIE	BIT(6)

 #define SAI_XIMR_SHIFT	0
 #define SAI_XIMR_MASK		GENMASK(6, SAI_XIMR_SHIFT)

 /******************** Bit definition for SAI_XSR register *******************/
 #define SAI_XSR_OVRUDR		BIT(0)
 #define SAI_XSR_MUTEDET		BIT(1)
 #define SAI_XSR_WCKCFG		BIT(2)
 #define SAI_XSR_FREQ		BIT(3)
 #define SAI_XSR_CNRDY		BIT(4)
 #define SAI_XSR_AFSDET		BIT(5)
 #define SAI_XSR_LFSDET		BIT(6)

 #define SAI_XSR_SHIFT	0
 #define SAI_XSR_MASK		GENMASK(6, SAI_XSR_SHIFT)

 /****************** Bit definition for SAI_XCLRFR register ******************/
 #define SAI_XCLRFR_COVRUDR	BIT(0)
 #define SAI_XCLRFR_CMUTEDET	BIT(1)
 #define SAI_XCLRFR_CWCKCFG	BIT(2)
 #define SAI_XCLRFR_CFREQ	BIT(3)
 #define SAI_XCLRFR_CCNRDY	BIT(4)
 #define SAI_XCLRFR_CAFSDET	BIT(5)
 #define SAI_XCLRFR_CLFSDET	BIT(6)

 #define SAI_XCLRFR_SHIFT	0
 #define SAI_XCLRFR_MASK		GENMASK(6, SAI_XCLRFR_SHIFT)

 /****************** Bit definition for SAI_PDMCR register ******************/
 #define SAI_PDMCR_PDMEN		BIT(0)

 #define SAI_PDMCR_MICNBR_SHIFT	4
 #define SAI_PDMCR_MICNBR_MASK	GENMASK(5, SAI_PDMCR_MICNBR_SHIFT)
 #define SAI_PDMCR_MICNBR_SET(x)	((x) << SAI_PDMCR_MICNBR_SHIFT)

 #define SAI_PDMCR_CKEN1		BIT(8)
 #define SAI_PDMCR_CKEN2		BIT(9)
 #define SAI_PDMCR_CKEN3		BIT(10)
 #define SAI_PDMCR_CKEN4		BIT(11)

 /****************** Bit definition for (SAI_PDMDLY register ****************/
 #define SAI_PDMDLY_1L_SHIFT	0
 #define SAI_PDMDLY_1L_MASK	GENMASK(2, SAI_PDMDLY_1L_SHIFT)
 #define SAI_PDMDLY_1L_WIDTH	3

 #define SAI_PDMDLY_1R_SHIFT	4
 #define SAI_PDMDLY_1R_MASK	GENMASK(6, SAI_PDMDLY_1R_SHIFT)
 #define SAI_PDMDLY_1R_WIDTH	3

 #define SAI_PDMDLY_2L_SHIFT	8
 #define SAI_PDMDLY_2L_MASK	GENMASK(10, SAI_PDMDLY_2L_SHIFT)
 #define SAI_PDMDLY_2L_WIDTH	3

 #define SAI_PDMDLY_2R_SHIFT	12
 #define SAI_PDMDLY_2R_MASK	GENMASK(14, SAI_PDMDLY_2R_SHIFT)
 #define SAI_PDMDLY_2R_WIDTH	3

 #define SAI_PDMDLY_3L_SHIFT	16
 #define SAI_PDMDLY_3L_MASK	GENMASK(18, SAI_PDMDLY_3L_SHIFT)
 #define SAI_PDMDLY_3L_WIDTH	3

 #define SAI_PDMDLY_3R_SHIFT	20
 #define SAI_PDMDLY_3R_MASK	GENMASK(22, SAI_PDMDLY_3R_SHIFT)
 #define SAI_PDMDLY_3R_WIDTH	3

 #define SAI_PDMDLY_4L_SHIFT	24
 #define SAI_PDMDLY_4L_MASK	GENMASK(26, SAI_PDMDLY_4L_SHIFT)
 #define SAI_PDMDLY_4L_WIDTH	3

 #define SAI_PDMDLY_4R_SHIFT	28
 #define SAI_PDMDLY_4R_MASK	GENMASK(30, SAI_PDMDLY_4R_SHIFT)
 #define SAI_PDMDLY_4R_WIDTH	3

 #define STM_SAI_IS_F4(ip)	((ip)->conf->version == SAI_STM32F4)
 #define STM_SAI_IS_H7(ip)	((ip)->conf->version == SAI_STM32H7)

 enum stm32_sai_syncout {
 	STM_SAI_SYNC_OUT_NONE,
 	STM_SAI_SYNC_OUT_A,
 	STM_SAI_SYNC_OUT_B,
 };

 enum stm32_sai_version {
 	SAI_STM32F4,
 	SAI_STM32H7
 };

 /**
  * struct stm32_sai_conf - SAI configuration
  * @version: SAI version
  * @has_spdif: SAI S/PDIF support flag
  */
 struct stm32_sai_conf {
 	int version;
 	bool has_spdif;
 };

 /**
  * struct stm32_sai_data - private data of SAI instance driver
  * @pdev: device data pointer
  * @base: common register bank virtual base address
  * @pclk: SAI bus clock
  * @clk_x8k: SAI parent clock for sampling frequencies multiple of 8kHz
  * @clk_x11k: SAI parent clock for sampling frequencies multiple of 11kHz
  * @version: SOC version
  * @irq: SAI interrupt line
  * @set_sync: pointer to synchro mode configuration callback
  */
 struct stm32_sai_data {
 	struct platform_device *pdev;
 	void __iomem *base;
 	struct clk *pclk;
 	struct clk *clk_x8k;
 	struct clk *clk_x11k;
 	struct stm32_sai_conf *conf;
 	int irq;
 	int (*set_sync)(struct stm32_sai_data *sai,
 			struct device_node *np_provider, int synco, int synci);
 };
	/*
	* STM32 ALSA SoC Digital Audio Interface (SAI) driver.
	*
	* Copyright (C) 2016, STMicroelectronics - All Rights Reserved
	* Author(s): Olivier Moysan <olivier.moysan@st.com> for STMicroelectronics.
	*
	* License terms: GPL V2.0.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 as published by
	* the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
	* details.
	*/

	#include <linux/bitfield.h>

	/****************** SAI Register Map ************************************/

	/* Global configuration register */
	#define STM_SAI_GCR 0x00

	/* Sub-block A&B registers offsets, relative to A&B sub-block addresses */
	#define STM_SAI_CR1_REGX 0x00 /* A offset: 0x04. B offset: 0x24 */
	#define STM_SAI_CR2_REGX 0x04
	#define STM_SAI_FRCR_REGX 0x08
	#define STM_SAI_SLOTR_REGX 0x0C
	#define STM_SAI_IMR_REGX 0x10
	#define STM_SAI_SR_REGX 0x14
	#define STM_SAI_CLRFR_REGX 0x18
	#define STM_SAI_DR_REGX 0x1C

	/* Sub-block A registers, relative to sub-block A address */
	#define STM_SAI_PDMCR_REGX 0x40
	#define STM_SAI_PDMLY_REGX 0x44

	/****************** Bit definition for SAI_GCR register *****************/
	#define SAI_GCR_SYNCIN_SHIFT 0
	#define SAI_GCR_SYNCIN_WDTH 2
	#define SAI_GCR_SYNCIN_MASK GENMASK(1, SAI_GCR_SYNCIN_SHIFT)
	#define SAI_GCR_SYNCIN_MAX FIELD_GET(SAI_GCR_SYNCIN_MASK,\
	SAI_GCR_SYNCIN_MASK)

	#define SAI_GCR_SYNCOUT_SHIFT 4
	#define SAI_GCR_SYNCOUT_MASK GENMASK(5, SAI_GCR_SYNCOUT_SHIFT)

	/***************** Bit definition for SAI_XCR1 register *****************/
	#define SAI_XCR1_RX_TX_SHIFT 0
	#define SAI_XCR1_RX_TX BIT(SAI_XCR1_RX_TX_SHIFT)
	#define SAI_XCR1_SLAVE_SHIFT 1
	#define SAI_XCR1_SLAVE BIT(SAI_XCR1_SLAVE_SHIFT)

	#define SAI_XCR1_PRTCFG_SHIFT 2
	#define SAI_XCR1_PRTCFG_MASK GENMASK(3, SAI_XCR1_PRTCFG_SHIFT)
	#define SAI_XCR1_PRTCFG_SET(x) ((x) << SAI_XCR1_PRTCFG_SHIFT)

	#define SAI_XCR1_DS_SHIFT 5
	#define SAI_XCR1_DS_MASK GENMASK(7, SAI_XCR1_DS_SHIFT)
	#define SAI_XCR1_DS_SET(x) ((x) << SAI_XCR1_DS_SHIFT)

	#define SAI_XCR1_LSBFIRST_SHIFT 8
	#define SAI_XCR1_LSBFIRST BIT(SAI_XCR1_LSBFIRST_SHIFT)
	#define SAI_XCR1_CKSTR_SHIFT 9
	#define SAI_XCR1_CKSTR BIT(SAI_XCR1_CKSTR_SHIFT)

	#define SAI_XCR1_SYNCEN_SHIFT 10
	#define SAI_XCR1_SYNCEN_MASK GENMASK(11, SAI_XCR1_SYNCEN_SHIFT)
	#define SAI_XCR1_SYNCEN_SET(x) ((x) << SAI_XCR1_SYNCEN_SHIFT)

	#define SAI_XCR1_MONO_SHIFT 12
	#define SAI_XCR1_MONO BIT(SAI_XCR1_MONO_SHIFT)
	#define SAI_XCR1_OUTDRIV_SHIFT 13
	#define SAI_XCR1_OUTDRIV BIT(SAI_XCR1_OUTDRIV_SHIFT)
	#define SAI_XCR1_SAIEN_SHIFT 16
	#define SAI_XCR1_SAIEN BIT(SAI_XCR1_SAIEN_SHIFT)
	#define SAI_XCR1_DMAEN_SHIFT 17
	#define SAI_XCR1_DMAEN BIT(SAI_XCR1_DMAEN_SHIFT)
	#define SAI_XCR1_NODIV_SHIFT 19
	#define SAI_XCR1_NODIV BIT(SAI_XCR1_NODIV_SHIFT)

	#define SAI_XCR1_MCKDIV_SHIFT 20
	#define SAI_XCR1_MCKDIV_WIDTH(x) (((x) == SAI_STM32F4) ? 4 : 6)
	#define SAI_XCR1_MCKDIV_MASK(x) GENMASK((SAI_XCR1_MCKDIV_SHIFT + (x) - 1),\
	SAI_XCR1_MCKDIV_SHIFT)
	#define SAI_XCR1_MCKDIV_SET(x) ((x) << SAI_XCR1_MCKDIV_SHIFT)
	#define SAI_XCR1_MCKDIV_MAX(x) ((1 << SAI_XCR1_MCKDIV_WIDTH(x)) - 1)

	#define SAI_XCR1_OSR_SHIFT 26
	#define SAI_XCR1_OSR BIT(SAI_XCR1_OSR_SHIFT)

	/***************** Bit definition for SAI_XCR2 register *****************/
	#define SAI_XCR2_FTH_SHIFT 0
	#define SAI_XCR2_FTH_MASK GENMASK(2, SAI_XCR2_FTH_SHIFT)
	#define SAI_XCR2_FTH_SET(x) ((x) << SAI_XCR2_FTH_SHIFT)

	#define SAI_XCR2_FFLUSH_SHIFT 3
	#define SAI_XCR2_FFLUSH BIT(SAI_XCR2_FFLUSH_SHIFT)
	#define SAI_XCR2_TRIS_SHIFT 4
	#define SAI_XCR2_TRIS BIT(SAI_XCR2_TRIS_SHIFT)
	#define SAI_XCR2_MUTE_SHIFT 5
	#define SAI_XCR2_MUTE BIT(SAI_XCR2_MUTE_SHIFT)
	#define SAI_XCR2_MUTEVAL_SHIFT 6
	#define SAI_XCR2_MUTEVAL BIT(SAI_XCR2_MUTEVAL_SHIFT)

	#define SAI_XCR2_MUTECNT_SHIFT 7
	#define SAI_XCR2_MUTECNT_MASK GENMASK(12, SAI_XCR2_MUTECNT_SHIFT)
	#define SAI_XCR2_MUTECNT_SET(x) ((x) << SAI_XCR2_MUTECNT_SHIFT)

	#define SAI_XCR2_CPL_SHIFT 13
	#define SAI_XCR2_CPL BIT(SAI_XCR2_CPL_SHIFT)

	#define SAI_XCR2_COMP_SHIFT 14
	#define SAI_XCR2_COMP_MASK GENMASK(15, SAI_XCR2_COMP_SHIFT)
	#define SAI_XCR2_COMP_SET(x) ((x) << SAI_XCR2_COMP_SHIFT)

	/**************** Bit definition for SAI_XFRCR register *****************/
	#define SAI_XFRCR_FRL_SHIFT 0
	#define SAI_XFRCR_FRL_MASK GENMASK(7, SAI_XFRCR_FRL_SHIFT)
	#define SAI_XFRCR_FRL_SET(x) ((x) << SAI_XFRCR_FRL_SHIFT)

	#define SAI_XFRCR_FSALL_SHIFT 8
	#define SAI_XFRCR_FSALL_MASK GENMASK(14, SAI_XFRCR_FSALL_SHIFT)
	#define SAI_XFRCR_FSALL_SET(x) ((x) << SAI_XFRCR_FSALL_SHIFT)

	#define SAI_XFRCR_FSDEF_SHIFT 16
	#define SAI_XFRCR_FSDEF BIT(SAI_XFRCR_FSDEF_SHIFT)
	#define SAI_XFRCR_FSPOL_SHIFT 17
	#define SAI_XFRCR_FSPOL BIT(SAI_XFRCR_FSPOL_SHIFT)
	#define SAI_XFRCR_FSOFF_SHIFT 18
	#define SAI_XFRCR_FSOFF BIT(SAI_XFRCR_FSOFF_SHIFT)

	/**************** Bit definition for SAI_XSLOTR register ****************/
	#define SAI_XSLOTR_FBOFF_SHIFT 0
	#define SAI_XSLOTR_FBOFF_MASK GENMASK(4, SAI_XSLOTR_FBOFF_SHIFT)
	#define SAI_XSLOTR_FBOFF_SET(x) ((x) << SAI_XSLOTR_FBOFF_SHIFT)

	#define SAI_XSLOTR_SLOTSZ_SHIFT 6
	#define SAI_XSLOTR_SLOTSZ_MASK GENMASK(7, SAI_XSLOTR_SLOTSZ_SHIFT)
	#define SAI_XSLOTR_SLOTSZ_SET(x) ((x) << SAI_XSLOTR_SLOTSZ_SHIFT)

	#define SAI_XSLOTR_NBSLOT_SHIFT 8
	#define SAI_XSLOTR_NBSLOT_MASK GENMASK(11, SAI_XSLOTR_NBSLOT_SHIFT)
	#define SAI_XSLOTR_NBSLOT_SET(x) ((x) << SAI_XSLOTR_NBSLOT_SHIFT)

	#define SAI_XSLOTR_SLOTEN_SHIFT 16
	#define SAI_XSLOTR_SLOTEN_WIDTH 16
	#define SAI_XSLOTR_SLOTEN_MASK GENMASK(31, SAI_XSLOTR_SLOTEN_SHIFT)
	#define SAI_XSLOTR_SLOTEN_SET(x) ((x) << SAI_XSLOTR_SLOTEN_SHIFT)

	/***************** Bit definition for SAI_XIMR register *****************/
	#define SAI_XIMR_OVRUDRIE BIT(0)
	#define SAI_XIMR_MUTEDETIE BIT(1)
	#define SAI_XIMR_WCKCFGIE BIT(2)
	#define SAI_XIMR_FREQIE BIT(3)
	#define SAI_XIMR_CNRDYIE BIT(4)
	#define SAI_XIMR_AFSDETIE BIT(5)
	#define SAI_XIMR_LFSDETIE BIT(6)

	#define SAI_XIMR_SHIFT 0
	#define SAI_XIMR_MASK GENMASK(6, SAI_XIMR_SHIFT)

	/****************** Bit definition for SAI_XSR register *****************/
	#define SAI_XSR_OVRUDR BIT(0)
	#define SAI_XSR_MUTEDET BIT(1)
	#define SAI_XSR_WCKCFG BIT(2)
	#define SAI_XSR_FREQ BIT(3)
	#define SAI_XSR_CNRDY BIT(4)
	#define SAI_XSR_AFSDET BIT(5)
	#define SAI_XSR_LFSDET BIT(6)

	#define SAI_XSR_SHIFT 0
	#define SAI_XSR_MASK GENMASK(6, SAI_XSR_SHIFT)

	/**************** Bit definition for SAI_XCLRFR register ****************/
	#define SAI_XCLRFR_COVRUDR BIT(0)
	#define SAI_XCLRFR_CMUTEDET BIT(1)
	#define SAI_XCLRFR_CWCKCFG BIT(2)
	#define SAI_XCLRFR_CFREQ BIT(3)
	#define SAI_XCLRFR_CCNRDY BIT(4)
	#define SAI_XCLRFR_CAFSDET BIT(5)
	#define SAI_XCLRFR_CLFSDET BIT(6)

	#define SAI_XCLRFR_SHIFT 0
	#define SAI_XCLRFR_MASK GENMASK(6, SAI_XCLRFR_SHIFT)

	/**************** Bit definition for SAI_PDMCR register ****************/
	#define SAI_PDMCR_PDMEN BIT(0)

	#define SAI_PDMCR_MICNBR_SHIFT 4
	#define SAI_PDMCR_MICNBR_MASK GENMASK(5, SAI_PDMCR_MICNBR_SHIFT)
	#define SAI_PDMCR_MICNBR_SET(x) ((x) << SAI_PDMCR_MICNBR_SHIFT)

	#define SAI_PDMCR_CKEN1 BIT(8)
	#define SAI_PDMCR_CKEN2 BIT(9)
	#define SAI_PDMCR_CKEN3 BIT(10)
	#define SAI_PDMCR_CKEN4 BIT(11)

	/**************** Bit definition for (SAI_PDMDLY register **************/
	#define SAI_PDMDLY_1L_SHIFT 0
	#define SAI_PDMDLY_1L_MASK GENMASK(2, SAI_PDMDLY_1L_SHIFT)
	#define SAI_PDMDLY_1L_WIDTH 3

	#define SAI_PDMDLY_1R_SHIFT 4
	#define SAI_PDMDLY_1R_MASK GENMASK(6, SAI_PDMDLY_1R_SHIFT)
	#define SAI_PDMDLY_1R_WIDTH 3

	#define SAI_PDMDLY_2L_SHIFT 8
	#define SAI_PDMDLY_2L_MASK GENMASK(10, SAI_PDMDLY_2L_SHIFT)
	#define SAI_PDMDLY_2L_WIDTH 3

	#define SAI_PDMDLY_2R_SHIFT 12
	#define SAI_PDMDLY_2R_MASK GENMASK(14, SAI_PDMDLY_2R_SHIFT)
	#define SAI_PDMDLY_2R_WIDTH 3

	#define SAI_PDMDLY_3L_SHIFT 16
	#define SAI_PDMDLY_3L_MASK GENMASK(18, SAI_PDMDLY_3L_SHIFT)
	#define SAI_PDMDLY_3L_WIDTH 3

	#define SAI_PDMDLY_3R_SHIFT 20
	#define SAI_PDMDLY_3R_MASK GENMASK(22, SAI_PDMDLY_3R_SHIFT)
	#define SAI_PDMDLY_3R_WIDTH 3

	#define SAI_PDMDLY_4L_SHIFT 24
	#define SAI_PDMDLY_4L_MASK GENMASK(26, SAI_PDMDLY_4L_SHIFT)
	#define SAI_PDMDLY_4L_WIDTH 3

	#define SAI_PDMDLY_4R_SHIFT 28
	#define SAI_PDMDLY_4R_MASK GENMASK(30, SAI_PDMDLY_4R_SHIFT)
	#define SAI_PDMDLY_4R_WIDTH 3

	#define STM_SAI_IS_F4(ip) ((ip)->conf->version == SAI_STM32F4)
	#define STM_SAI_IS_H7(ip) ((ip)->conf->version == SAI_STM32H7)

	enum stm32_sai_syncout {
	STM_SAI_SYNC_OUT_NONE,
	STM_SAI_SYNC_OUT_A,
	STM_SAI_SYNC_OUT_B,
	};

	enum stm32_sai_version {
	SAI_STM32F4,
	SAI_STM32H7
	};

	/**
	* struct stm32_sai_conf - SAI configuration
	* @version: SAI version
	* @has_spdif: SAI S/PDIF support flag
	*/
	struct stm32_sai_conf {
	int version;
	bool has_spdif;
	};

	/**
	* struct stm32_sai_data - private data of SAI instance driver
	* @pdev: device data pointer
	* @base: common register bank virtual base address
	* @pclk: SAI bus clock
	* @clk_x8k: SAI parent clock for sampling frequencies multiple of 8kHz
	* @clk_x11k: SAI parent clock for sampling frequencies multiple of 11kHz
	* @version: SOC version
	* @irq: SAI interrupt line
	* @set_sync: pointer to synchro mode configuration callback
	*/
	struct stm32_sai_data {
	struct platform_device *pdev;
	void __iomem *base;
	struct clk *pclk;
	struct clk *clk_x8k;
	struct clk *clk_x11k;
	struct stm32_sai_conf *conf;
	int irq;
	int (set_sync)(struct stm32_sai_data sai,
	struct device_node *np_provider, int synco, int synci);
	};