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softwarecki
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soc: adsp: clk: Add multiple clock sources support for dai
Added a new function to check whether a clock source is supported by a platform and to retrieve its frequency. Signed-off-by: Adrian Warecki <[email protected]>
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+85
-12
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2 files changed

+85
-12
lines changed

‎soc/xtensa/intel_adsp/common/clk.c

Lines changed: 39 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -100,3 +100,42 @@ void adsp_clock_init(void)
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platform_cpu_clocks[i].lowest_freq = platform_lowest_freq_idx;
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}
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}
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struct adsp_clock_source_desc adsp_clk_src_info[ADSP_CLOCK_SOURCE_COUNT] = {
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#ifndef CONFIG_DAI_DMIC_HW_IOCLK
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[ADSP_CLOCK_SOURCE_XTAL_OSC] = { DT_PROP(DT_NODELABEL(sysclk), clock_frequency) },
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#else
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/* Temporarily use the values from the configuration until set xtal frequency via ipc
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* support is added.
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*/
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[ADSP_CLOCK_SOURCE_XTAL_OSC] = { CONFIG_DAI_DMIC_HW_IOCLK },
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(audioclk), okay)
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[ADSP_CLOCK_SOURCE_AUDIO_CARDINAL] = { DT_PROP(DT_NODELABEL(audioclk), clock_frequency) },
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#endif
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#if DT_NODE_HAS_STATUS(DT_NODELABEL(pllclk), okay)
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[ADSP_CLOCK_SOURCE_AUDIO_PLL_FIXED] = { DT_PROP(DT_NODELABEL(pllclk), clock_frequency) },
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#endif
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[ADSP_CLOCK_SOURCE_MLCK_INPUT] = { 0 },
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#ifdef ADSP_CLOCK_HAS_WOVCRO
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[ADSP_CLOCK_SOURCE_WOV_RING_OSC] = { DT_PROP(DT_NODELABEL(sysclk), clock_frequency) },
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#endif
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};
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bool adsp_clock_source_is_supported(int source)
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{
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if (source < 0 || source >= ADSP_CLOCK_SOURCE_COUNT) {
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return false;
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}
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return !!adsp_clk_src_info[source].frequency;
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}
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uint32_t adsp_clock_source_frequency(int source)
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{
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if (source < 0 || source >= ADSP_CLOCK_SOURCE_COUNT) {
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return 0;
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}
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return adsp_clk_src_info[source].frequency;
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}

‎soc/xtensa/intel_adsp/common/include/adsp_clk.h

Lines changed: 46 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -42,23 +42,57 @@ struct adsp_cpu_clock_info *adsp_cpu_clocks_get(void);
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#define ADSP_CLKCTL CAVS_SHIM.clkctl
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#endif
4444

45-
#define ADSP_CPU_CLOCK_FREQ_ENC DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_enc)
46-
#define ADSP_CPU_CLOCK_FREQ_MASK DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_mask)
47-
#define ADSP_CPU_CLOCK_FREQ_LEN DT_PROP_LEN(DT_NODELABEL(clkctl), adsp_clkctl_freq_enc)
45+
#define ADSP_CPU_CLOCK_FREQ_ENC DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_enc)
46+
#define ADSP_CPU_CLOCK_FREQ_MASK DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_mask)
47+
#define ADSP_CPU_CLOCK_FREQ_LEN DT_PROP_LEN(DT_NODELABEL(clkctl), adsp_clkctl_freq_enc)
4848

49-
#define ADSP_CPU_CLOCK_FREQ_DEFAULT DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_default)
50-
#define ADSP_CPU_CLOCK_FREQ_LOWEST DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_lowest)
49+
#define ADSP_CPU_CLOCK_FREQ_DEFAULT DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_default)
50+
#define ADSP_CPU_CLOCK_FREQ_LOWEST DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_freq_lowest)
5151

52-
#define ADSP_CPU_CLOCK_FREQ(name) DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_clk_##name)
52+
#define ADSP_CPU_CLOCK_FREQ(name) DT_PROP(DT_NODELABEL(clkctl), adsp_clkctl_clk_##name)
5353

54-
#if DT_PROP(DT_NODELABEL(clkctl), wovcro_supported)
55-
#define ADSP_CLOCK_HAS_WOVCRO
54+
#define ADSP_CLOCK_HAS_WOVCRO DT_PROP(DT_NODELABEL(clkctl), wovcro_supported)
55+
56+
#define ADSP_CPU_CLOCK_FREQ_LPRO ADSP_CPU_CLOCK_FREQ(lpro)
57+
#define ADSP_CPU_CLOCK_FREQ_HPRO ADSP_CPU_CLOCK_FREQ(hpro)
58+
#if ADSP_CLOCK_HAS_WOVCRO
59+
#define ADSP_CPU_CLOCK_FREQ_WOVCRO ADSP_CPU_CLOCK_FREQ(wovcro)
60+
#endif
61+
62+
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/* Clock sources used by dai */
64+
#define ADSP_CLOCK_SOURCE_XTAL_OSC 0
65+
#if DT_NODE_HAS_STATUS(DT_NODELABEL(audioclk), okay)
66+
#define ADSP_CLOCK_SOURCE_AUDIO_CARDINAL 1
67+
#endif
68+
#if DT_NODE_HAS_STATUS(DT_NODELABEL(pllclk), okay)
69+
#define ADSP_CLOCK_SOURCE_AUDIO_PLL_FIXED 2
5670
#endif
5771

58-
#define ADSP_CPU_CLOCK_FREQ_LPRO ADSP_CPU_CLOCK_FREQ(lpro)
59-
#define ADSP_CPU_CLOCK_FREQ_HPRO ADSP_CPU_CLOCK_FREQ(hpro)
60-
#ifdef ADSP_CLOCK_HAS_WOVCRO
61-
#define ADSP_CPU_CLOCK_FREQ_WOVCRO ADSP_CPU_CLOCK_FREQ(wovcro)
72+
#define ADSP_CLOCK_SOURCE_MLCK_INPUT 3
73+
#if ADSP_CLOCK_HAS_WOVCRO
74+
#define ADSP_CLOCK_SOURCE_WOV_RING_OSC 4
6275
#endif
76+
#define ADSP_CLOCK_SOURCE_COUNT 5
77+
78+
struct adsp_clock_source_desc {
79+
uint32_t frequency;
80+
};
81+
82+
/** @brief Check if clock source is supported
83+
*
84+
* @param freq Clock frequency index
85+
*
86+
* @return true if clock source is supported
87+
*/
88+
bool adsp_clock_source_is_supported(int source);
89+
90+
/** @brief Get clock source frequency
91+
*
92+
* @param freq Clock frequency index
93+
*
94+
* @return frequency on success, 0 on error
95+
*/
96+
uint32_t adsp_clock_source_frequency(int source);
6397

6498
#endif /* ZEPHYR_SOC_INTEL_ADSP_CAVS_CLK_H_ */

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