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Diffstat (limited to 'sound/soc/stm/stm32_sai.h')
-rw-r--r--sound/soc/stm/stm32_sai.h22
1 files changed, 19 insertions, 3 deletions
diff --git a/sound/soc/stm/stm32_sai.h b/sound/soc/stm/stm32_sai.h
index 889974dc62d9..bb062e70de63 100644
--- a/sound/soc/stm/stm32_sai.h
+++ b/sound/soc/stm/stm32_sai.h
@@ -16,9 +16,11 @@
* details.
*/
+#include <linux/bitfield.h>
+
/******************** SAI Register Map **************************************/
-/* common register */
+/* Global configuration register */
#define STM_SAI_GCR 0x00
/* Sub-block A&B registers offsets, relative to A&B sub-block addresses */
@@ -37,12 +39,13 @@
/******************** 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_SET(x) ((x) << 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)
-#define SAI_GCR_SYNCOUT_SET(x) ((x) << SAI_GCR_SYNCOUT_SHIFT)
/******************* Bit definition for SAI_XCR1 register *******************/
#define SAI_XCR1_RX_TX_SHIFT 0
@@ -231,6 +234,12 @@
#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
@@ -247,15 +256,22 @@ struct stm32_sai_conf {
/**
* 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);
};