These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / sound / soc / qcom / lpass.h

diff --git a/kernel/sound/soc/qcom/lpass.h b/kernel/sound/soc/qcom/lpass.h
index 5c99b3d..0b63e2e 100644 (file)
--- a/kernel/sound/soc/qcom/lpass.h
+++ b/kernel/sound/soc/qcom/lpass.h
@@ -22,6 +22,8 @@
 #include <linux/regmap.h>
 
 #define LPASS_AHBIX_CLOCK_FREQUENCY            131072000
+#define LPASS_MAX_MI2S_PORTS                   (8)
+#define LPASS_MAX_DMA_CHANNELS                 (8)
 
 /* Both the CPU DAI and platform drivers will access this data */
 struct lpass_data {
@@ -30,10 +32,10 @@ struct lpass_data {
        struct clk *ahbix_clk;
 
        /* MI2S system clock */
-       struct clk *mi2s_osr_clk;
+       struct clk *mi2s_osr_clk[LPASS_MAX_MI2S_PORTS];
 
        /* MI2S bit clock (derived from system clock by a divider */
-       struct clk *mi2s_bit_clk;
+       struct clk *mi2s_bit_clk[LPASS_MAX_MI2S_PORTS];
 
        /* low-power audio interface (LPAIF) registers */
        void __iomem *lpaif;
@@ -43,9 +45,54 @@ struct lpass_data {
 
        /* interrupts from the low-power audio interface (LPAIF) */
        int lpaif_irq;
+
+       /* SOC specific variations in the LPASS IP integration */
+       struct lpass_variant *variant;
+
+       /* bit map to keep track of static channel allocations */
+       unsigned long rdma_ch_bit_map;
+
+       /* used it for handling interrupt per dma channel */
+       struct snd_pcm_substream *substream[LPASS_MAX_DMA_CHANNELS];
+
+       /* 8016 specific */
+       struct clk *pcnoc_mport_clk;
+       struct clk *pcnoc_sway_clk;
+};
+
+/* Vairant data per each SOC */
+struct lpass_variant {
+       u32     i2sctrl_reg_base;
+       u32     i2sctrl_reg_stride;
+       u32     i2s_ports;
+       u32     irq_reg_base;
+       u32     irq_reg_stride;
+       u32     irq_ports;
+       u32     rdma_reg_base;
+       u32     rdma_reg_stride;
+       u32     rdma_channels;
+
+       /**
+        * on SOCs like APQ8016 the channel control bits start
+        * at different offset to ipq806x
+        **/
+       u32     rdmactl_audif_start;
+       /* SOC specific intialization like clocks */
+       int (*init)(struct platform_device *pdev);
+       int (*exit)(struct platform_device *pdev);
+       int (*alloc_dma_channel)(struct lpass_data *data);
+       int (*free_dma_channel)(struct lpass_data *data, int ch);
+
+       /* SOC specific dais */
+       struct snd_soc_dai_driver *dai_driver;
+       int num_dai;
 };
 
 /* register the platform driver from the CPU DAI driver */
 int asoc_qcom_lpass_platform_register(struct platform_device *);
+int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev);
+int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
+int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai);
+extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
 
 #endif /* __LPASS_H__ */