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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Use master clock "mclk" if provided through device tree. Signed-off-by: Maxim Kochetkov --- sound/soc/codecs/nau8824.c | 21 +++++++++++++++++++-- sound/soc/codecs/nau8824.h | 1 + 2 files changed, 20 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/nau8824.c b/sound/soc/codecs/nau8824.c index f92b95b21cae..c66b0a5a7448 100644 --- a/sound/soc/codecs/nau8824.c +++ b/sound/soc/codecs/nau8824.c @@ -520,8 +520,15 @@ static int system_clock_control(struct snd_soc_dapm_widget *w, } else { nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0); } + + if (!IS_ERR(nau8824->mclk)) + clk_disable_unprepare(nau8824->mclk); } else { dev_dbg(nau8824->dev, "system clock control : POWER ON\n"); + + if (!IS_ERR(nau8824->mclk)) + clk_prepare_enable(nau8824->mclk); + /* Check the clock source setting is proper or not * no matter the source is from FLL or MCLK. */ @@ -563,16 +570,22 @@ static int dmic_clock_control(struct snd_soc_dapm_widget *w, struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component); int src; + unsigned int freq; + + if (!IS_ERR(nau8824->mclk)) + freq = clk_get_rate(nau8824->mclk); + else + freq = nau8824->fs * 256; /* The DMIC clock is gotten from system clock (256fs) divided by * DMIC_SRC (1, 2, 4, 8, 16, 32). The clock has to be equal or * less than 3.072 MHz. */ for (src = 0; src < 5; src++) { - if ((0x1 << (8 - src)) * nau8824->fs <= DMIC_CLK) + if (freq / (0x1 << src) <= DMIC_CLK) break; } - dev_dbg(nau8824->dev, "dmic src %d for mclk %d\n", src, nau8824->fs * 256); + dev_dbg(nau8824->dev, "dmic src %d for mclk %d\n", src, freq); regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER, NAU8824_CLK_DMIC_SRC_MASK, (src << NAU8824_CLK_DMIC_SRC_SFT)); @@ -1510,6 +1523,10 @@ static int nau8824_component_probe(struct snd_soc_component *component) nau8824->dapm = dapm; + nau8824->mclk = devm_clk_get(component->dev, "mclk"); + if (PTR_ERR(nau8824->mclk) == -EPROBE_DEFER) + return -EPROBE_DEFER; + return 0; } diff --git a/sound/soc/codecs/nau8824.h b/sound/soc/codecs/nau8824.h index 5fcfc43dfc85..d8e19515133c 100644 --- a/sound/soc/codecs/nau8824.h +++ b/sound/soc/codecs/nau8824.h @@ -434,6 +434,7 @@ struct nau8824 { struct snd_soc_jack *jack; struct work_struct jdet_work; struct semaphore jd_sem; 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Signed-off-by: Maxim Kochetkov --- .../devicetree/bindings/sound/nuvoton,nau8824.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8824.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8824.yaml index 3dbf438c3841..232dc16a94a3 100644 --- a/Documentation/devicetree/bindings/sound/nuvoton,nau8824.yaml +++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8824.yaml @@ -23,6 +23,14 @@ properties: '#sound-dai-cells': const: 0 + clocks: + items: + - description: The phandle of the master clock to the CODEC + + clock-names: + items: + - const: mclk + interrupts: maxItems: 1