diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0348-ASoC-tlv320aic32x4-Control-clock-gating-with-CCF.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0348-ASoC-tlv320aic32x4-Control-clock-gating-with-CCF.patch | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0348-ASoC-tlv320aic32x4-Control-clock-gating-with-CCF.patch b/target/linux/bcm27xx/patches-4.19/950-0348-ASoC-tlv320aic32x4-Control-clock-gating-with-CCF.patch new file mode 100644 index 0000000000..c056c34ad7 --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0348-ASoC-tlv320aic32x4-Control-clock-gating-with-CCF.patch @@ -0,0 +1,109 @@ +From f844ea32cba0c4030594a0f590725477a5751f32 Mon Sep 17 00:00:00 2001 +From: Annaliese McDermond <nh6z@nh6z.net> +Date: Thu, 21 Mar 2019 17:58:49 -0700 +Subject: [PATCH] ASoC: tlv320aic32x4: Control clock gating with CCF + +commit d25970b5fd51e9fcf0afbe190908ea4049454da4 upstream. + +Control the clock gating to the various clock components to use +the CCF. This allows us to prepare_enalbe only 3 clocks and the +relationships assigned to them will cause upstream clockss to +enable automatically. Additionally we can do this in a single +call to the CCF. + +Signed-off-by: Annaliese McDermond <nh6z@nh6z.net> +Signed-off-by: Mark Brown <broonie@kernel.org> +--- + sound/soc/codecs/tlv320aic32x4.c | 67 +++++++------------------------- + 1 file changed, 13 insertions(+), 54 deletions(-) + +--- a/sound/soc/codecs/tlv320aic32x4.c ++++ b/sound/soc/codecs/tlv320aic32x4.c +@@ -836,41 +836,25 @@ static int aic32x4_mute(struct snd_soc_d + static int aic32x4_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) + { +- struct aic32x4_priv *aic32x4 = snd_soc_component_get_drvdata(component); + int ret; + ++ struct clk_bulk_data clocks[] = { ++ { .id = "madc" }, ++ { .id = "mdac" }, ++ { .id = "bdiv" }, ++ }; ++ ++ ret = devm_clk_bulk_get(component->dev, ARRAY_SIZE(clocks), clocks); ++ if (ret) ++ return ret; ++ + switch (level) { + case SND_SOC_BIAS_ON: +- /* Switch on master clock */ +- ret = clk_prepare_enable(aic32x4->mclk); ++ ret = clk_bulk_prepare_enable(ARRAY_SIZE(clocks), clocks); + if (ret) { +- dev_err(component->dev, "Failed to enable master clock\n"); ++ dev_err(component->dev, "Failed to enable clocks\n"); + return ret; + } +- +- /* Switch on PLL */ +- snd_soc_component_update_bits(component, AIC32X4_PLLPR, +- AIC32X4_PLLEN, AIC32X4_PLLEN); +- +- /* Switch on NDAC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_NDAC, +- AIC32X4_NDACEN, AIC32X4_NDACEN); +- +- /* Switch on MDAC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_MDAC, +- AIC32X4_MDACEN, AIC32X4_MDACEN); +- +- /* Switch on NADC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_NADC, +- AIC32X4_NADCEN, AIC32X4_NADCEN); +- +- /* Switch on MADC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_MADC, +- AIC32X4_MADCEN, AIC32X4_MADCEN); +- +- /* Switch on BCLK_N Divider */ +- snd_soc_component_update_bits(component, AIC32X4_BCLKN, +- AIC32X4_BCLKEN, AIC32X4_BCLKEN); + break; + case SND_SOC_BIAS_PREPARE: + break; +@@ -879,32 +863,7 @@ static int aic32x4_set_bias_level(struct + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) + break; + +- /* Switch off BCLK_N Divider */ +- snd_soc_component_update_bits(component, AIC32X4_BCLKN, +- AIC32X4_BCLKEN, 0); +- +- /* Switch off MADC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_MADC, +- AIC32X4_MADCEN, 0); +- +- /* Switch off NADC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_NADC, +- AIC32X4_NADCEN, 0); +- +- /* Switch off MDAC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_MDAC, +- AIC32X4_MDACEN, 0); +- +- /* Switch off NDAC Divider */ +- snd_soc_component_update_bits(component, AIC32X4_NDAC, +- AIC32X4_NDACEN, 0); +- +- /* Switch off PLL */ +- snd_soc_component_update_bits(component, AIC32X4_PLLPR, +- AIC32X4_PLLEN, 0); +- +- /* Switch off master clock */ +- clk_disable_unprepare(aic32x4->mclk); ++ clk_bulk_disable_unprepare(ARRAY_SIZE(clocks), clocks); + break; + case SND_SOC_BIAS_OFF: + break; |