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@jerryliu
發現在 snd_sunxi_dmic.h 中,少了宣告 struct sunxi_dmic_clk ??

struct sunxi_dmic_mem {
struct resource res;
void __iomem *membase;
struct resource *memregion;
struct regmap *regmap;
};

struct sunxi_dmic_pinctl {
struct pinctrl *pinctrl;
struct pinctrl_state *pinstate;
struct pinctrl_state *pinstate_sleep;

bool pinctrl_used;

};

struct sunxi_dmic_dts {
/* value must be (2^n)Kbyte */
size_t capture_cma;
size_t capture_fifo_size;

unsigned int rx_chmap;
unsigned int data_vol;
unsigned int rx_dtime;

/* components func -> rx_sync */
bool rx_sync_en;	/* read from dts */
bool rx_sync_ctl;
int rx_sync_id;
rx_sync_domain_t rx_sync_domain;

};

struct sunxi_dmic {
struct platform_device *pdev;

struct sunxi_dmic_mem mem;
struct sunxi_dmic_clk clk;
struct sunxi_dmic_pinctl pin;
struct sunxi_dmic_dts dts;

struct sunxi_dma_params capture_dma_param;

};

  CC      sound/soc/sunxi_v2/snd_sunxi_pcm.o
  CC      sound/soc/sunxi_v2/snd_sunxi_dmic.o
In file included from sound/soc/sunxi_v2/snd_sunxi_dmic.c:32:
sound/soc/sunxi_v2/snd_sunxi_dmic.h:173:24: error: field 'clk' has incomplete type
  struct sunxi_dmic_clk clk;
                        ^~~
sound/soc/sunxi_v2/snd_sunxi_dmic.c: In function 'sunxi_dmic_dai_set_pll':
sound/soc/sunxi_v2/snd_sunxi_dmic.c:107:6: error: implicit declaration of function 'snd_sunxi_clk_rate'; did you mean 'snd_sunxi_echo_reg'? [-Werror=implicit-function-declaration]
  if (snd_sunxi_clk_rate(clk, freq_in, freq_out)) {
      ^~~~~~~~~~~~~~~~~~
      snd_sunxi_echo_reg
sound/soc/sunxi_v2/snd_sunxi_dmic.c: In function 'sunxi_dmic_component_suspend':
sound/soc/sunxi_v2/snd_sunxi_dmic.c:490:2: error: implicit declaration of function 'snd_sunxi_clk_disable'; did you mean 'clk_bulk_disable'? [-Werror=implicit-function-declaration]
  snd_sunxi_clk_disable(clk);
  ^~~~~~~~~~~~~~~~~~~~~
  clk_bulk_disable
sound/soc/sunxi_v2/snd_sunxi_dmic.c: In function 'sunxi_dmic_component_resume':
sound/soc/sunxi_v2/snd_sunxi_dmic.c:504:8: error: implicit declaration of function 'snd_sunxi_clk_enable'; did you mean 'snd_sunxi_echo_reg'? [-Werror=implicit-function-declaration]
  ret = snd_sunxi_clk_enable(clk);
        ^~~~~~~~~~~~~~~~~~~~
        snd_sunxi_echo_reg
sound/soc/sunxi_v2/snd_sunxi_dmic.c: In function 'sunxi_dmic_dev_probe':
sound/soc/sunxi_v2/snd_sunxi_dmic.c:878:8: error: implicit declaration of function 'snd_sunxi_clk_init'; did you mean 'snd_sunxi_pin_init'? [-Werror=implicit-function-declaration]
  ret = snd_sunxi_clk_init(pdev, clk);
        ^~~~~~~~~~~~~~~~~~
        snd_sunxi_pin_init
sound/soc/sunxi_v2/snd_sunxi_dmic.c:922:2: error: implicit declaration of function 'snd_sunxi_clk_exit'; did you mean 'snd_sunxi_mem_exit'? [-Werror=implicit-function-declaration]
  snd_sunxi_clk_exit(clk);
  ^~~~~~~~~~~~~~~~~~
  snd_sunxi_mem_exit
cc1: some warnings being treated as errors
make[9]: *** [sound/soc/sunxi_v2/snd_sunxi_dmic.o] Error 1