[PATCH v6 0/4] Add CS35L41 shared boost feature

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[PATCH] ucm2: Rockchip: rk817: Add...

Lucas Tanure

22 Feb 2023 22 Feb '23

10:32 a.m.

Valve's Steam Deck uses CS35L41 in shared boost mode, where both speakers share the boost circuit. Add this support in the shared lib, but for now, shared boost is not supported in HDA systems as would require BIOS changes.

Based on David Rhodes shared boost patches.

Also, fix boost config overwriting in IRQ found in the review and do a small refactor of the code.

Changes from V5: - Improved documentation from Cirrrus - All amps use MDSCYN for boost source - Active amp has TX and RX enabled

Changes from V4: - Fix Document subject

Changes from V3: - Fix wrong code sent - Fix ISO C90 mixed declarations and code

Changes from V2: - Drop External boost without VSPK Documentation - Move Shared boost to use values 2 and 3 - Revert back to reg_sequence but reading the value first and only update the necessary bits - Fix bug found by Intel kernel Test Robot

Changes from V1: - Fix Documentation patch subject - New patch for External boost without VSPK Documentation - New patch to fix boost IRQ overwriting issue - New patch to refactor IRQ release error code - reinit_completion on pcm_startup - fix DRE switch overwriting - return IRQ_HANDLED in PLL_LOCK case

Lucas Tanure (4): ASoC: cs35l41: Only disable internal boost ASoC: cs35l41: Refactor error release code ALSA: cs35l41: Add shared boost feature ASoC: dt-bindings: cirrus,cs35l41: Document CS35l41 shared boost

-- 2.39.2

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Lucas Tanure

22 Feb 22 Feb

10:32 a.m.

New subject: [PATCH v6 1/4] ASoC: cs35l41: Only disable internal boost

In error situations, only the internal boost case should be disabled and re-enabled. Also, for other boost cases re-enabling the boost to the default internal boost config is incorrect.

Fixes: 6450ef559056 ("ASoC: cs35l41: CS35L41 Boosted Smart Amplifier") Signed-off-by: Lucas Tanure lucas.tanure@collabora.com Acked-by: Charles Keepax ckeepax@opensource.cirrus.com --- sound/soc/codecs/cs35l41.c | 34 +++++++++++++++++++--------------- 1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c index c223d83e02cf..f2b5032daa6a 100644 --- a/sound/soc/codecs/cs35l41.c +++ b/sound/soc/codecs/cs35l41.c @@ -356,6 +356,19 @@ static const struct snd_kcontrol_new cs35l41_aud_controls[] = { WM_ADSP_FW_CONTROL("DSP1", 0), };

+static void cs35l41_boost_enable(struct cs35l41_private *cs35l41, unsigned int enable) +{ + switch (cs35l41->hw_cfg.bst_type) { + case CS35L41_INT_BOOST: + enable = enable ? CS35L41_BST_EN_DEFAULT : CS35L41_BST_DIS_FET_OFF; + regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK, + enable << CS35L41_BST_EN_SHIFT); + break; + default: + break; + } +} + static irqreturn_t cs35l41_irq(int irq, void *data) { struct cs35l41_private *cs35l41 = data; @@ -431,8 +444,7 @@ static irqreturn_t cs35l41_irq(int irq, void *data)

if (status[0] & CS35L41_BST_OVP_ERR) { dev_crit_ratelimited(cs35l41->dev, "VBST Over Voltage error\n"); - regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, - CS35L41_BST_EN_MASK, 0); + cs35l41_boost_enable(cs35l41, 0); regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, CS35L41_BST_OVP_ERR); regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); @@ -441,16 +453,13 @@ static irqreturn_t cs35l41_irq(int irq, void *data) CS35L41_BST_OVP_ERR_RLS); regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, CS35L41_BST_OVP_ERR_RLS, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, - CS35L41_BST_EN_MASK, - CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT); + cs35l41_boost_enable(cs35l41, 1); ret = IRQ_HANDLED; }

if (status[0] & CS35L41_BST_DCM_UVP_ERR) { dev_crit_ratelimited(cs35l41->dev, "DCM VBST Under Voltage Error\n"); - regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, - CS35L41_BST_EN_MASK, 0); + cs35l41_boost_enable(cs35l41, 0); regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, CS35L41_BST_DCM_UVP_ERR); regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); @@ -459,16 +468,13 @@ static irqreturn_t cs35l41_irq(int irq, void *data) CS35L41_BST_UVP_ERR_RLS); regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, CS35L41_BST_UVP_ERR_RLS, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, - CS35L41_BST_EN_MASK, - CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT); + cs35l41_boost_enable(cs35l41, 1); ret = IRQ_HANDLED; }

if (status[0] & CS35L41_BST_SHORT_ERR) { dev_crit_ratelimited(cs35l41->dev, "LBST error: powering off!\n"); - regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, - CS35L41_BST_EN_MASK, 0); + cs35l41_boost_enable(cs35l41, 0); regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, CS35L41_BST_SHORT_ERR); regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); @@ -477,9 +483,7 @@ static irqreturn_t cs35l41_irq(int irq, void *data) CS35L41_BST_SHORT_ERR_RLS); regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, CS35L41_BST_SHORT_ERR_RLS, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, - CS35L41_BST_EN_MASK, - CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT); + cs35l41_boost_enable(cs35l41, 1); ret = IRQ_HANDLED; }

-- 2.39.2

Lucas Tanure

10:32 a.m.

New subject: [PATCH v6 2/4] ASoC: cs35l41: Refactor error release code

Add cs35l41_error_release function to handle error release sequences.

Signed-off-by: Lucas Tanure lucas.tanure@collabora.com Acked-by: Charles Keepax ckeepax@opensource.cirrus.com --- sound/soc/codecs/cs35l41.c | 64 ++++++++++---------------------------- 1 file changed, 16 insertions(+), 48 deletions(-)

diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c index f2b5032daa6a..c006364e5335 100644 --- a/sound/soc/codecs/cs35l41.c +++ b/sound/soc/codecs/cs35l41.c @@ -369,6 +369,16 @@ static void cs35l41_boost_enable(struct cs35l41_private *cs35l41, unsigned int e } }

+ +static void cs35l41_error_release(struct cs35l41_private *cs35l41, unsigned int irq_err_bit, + unsigned int rel_err_bit) +{ + regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, irq_err_bit); + regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); + regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, rel_err_bit, rel_err_bit); + regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, rel_err_bit, 0); +} + static irqreturn_t cs35l41_irq(int irq, void *data) { struct cs35l41_private *cs35l41 = data; @@ -405,54 +415,26 @@ static irqreturn_t cs35l41_irq(int irq, void *data) */ if (status[0] & CS35L41_AMP_SHORT_ERR) { dev_crit_ratelimited(cs35l41->dev, "Amp short error\n"); - regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, - CS35L41_AMP_SHORT_ERR); - regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_AMP_SHORT_ERR_RLS, - CS35L41_AMP_SHORT_ERR_RLS); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_AMP_SHORT_ERR_RLS, 0); + cs35l41_error_release(cs35l41, CS35L41_AMP_SHORT_ERR, CS35L41_AMP_SHORT_ERR_RLS); ret = IRQ_HANDLED; }

if (status[0] & CS35L41_TEMP_WARN) { dev_crit_ratelimited(cs35l41->dev, "Over temperature warning\n"); - regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, - CS35L41_TEMP_WARN); - regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_TEMP_WARN_ERR_RLS, - CS35L41_TEMP_WARN_ERR_RLS); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_TEMP_WARN_ERR_RLS, 0); + cs35l41_error_release(cs35l41, CS35L41_TEMP_WARN, CS35L41_TEMP_WARN_ERR_RLS); ret = IRQ_HANDLED; }

if (status[0] & CS35L41_TEMP_ERR) { dev_crit_ratelimited(cs35l41->dev, "Over temperature error\n"); - regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, - CS35L41_TEMP_ERR); - regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_TEMP_ERR_RLS, - CS35L41_TEMP_ERR_RLS); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_TEMP_ERR_RLS, 0); + cs35l41_error_release(cs35l41, CS35L41_TEMP_ERR, CS35L41_TEMP_ERR_RLS); ret = IRQ_HANDLED; }

if (status[0] & CS35L41_BST_OVP_ERR) { dev_crit_ratelimited(cs35l41->dev, "VBST Over Voltage error\n"); cs35l41_boost_enable(cs35l41, 0); - regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, - CS35L41_BST_OVP_ERR); - regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_BST_OVP_ERR_RLS, - CS35L41_BST_OVP_ERR_RLS); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_BST_OVP_ERR_RLS, 0); + cs35l41_error_release(cs35l41, CS35L41_BST_OVP_ERR, CS35L41_BST_OVP_ERR_RLS); cs35l41_boost_enable(cs35l41, 1); ret = IRQ_HANDLED; } @@ -460,14 +442,7 @@ static irqreturn_t cs35l41_irq(int irq, void *data) if (status[0] & CS35L41_BST_DCM_UVP_ERR) { dev_crit_ratelimited(cs35l41->dev, "DCM VBST Under Voltage Error\n"); cs35l41_boost_enable(cs35l41, 0); - regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, - CS35L41_BST_DCM_UVP_ERR); - regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_BST_UVP_ERR_RLS, - CS35L41_BST_UVP_ERR_RLS); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_BST_UVP_ERR_RLS, 0); + cs35l41_error_release(cs35l41, CS35L41_BST_DCM_UVP_ERR, CS35L41_BST_UVP_ERR_RLS); cs35l41_boost_enable(cs35l41, 1); ret = IRQ_HANDLED; } @@ -475,14 +450,7 @@ static irqreturn_t cs35l41_irq(int irq, void *data) if (status[0] & CS35L41_BST_SHORT_ERR) { dev_crit_ratelimited(cs35l41->dev, "LBST error: powering off!\n"); cs35l41_boost_enable(cs35l41, 0); - regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS1, - CS35L41_BST_SHORT_ERR); - regmap_write(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, 0); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_BST_SHORT_ERR_RLS, - CS35L41_BST_SHORT_ERR_RLS); - regmap_update_bits(cs35l41->regmap, CS35L41_PROTECT_REL_ERR_IGN, - CS35L41_BST_SHORT_ERR_RLS, 0); + cs35l41_error_release(cs35l41, CS35L41_BST_SHORT_ERR, CS35L41_BST_SHORT_ERR_RLS); cs35l41_boost_enable(cs35l41, 1); ret = IRQ_HANDLED; }

-- 2.39.2

Lucas Tanure

10:32 a.m.

New subject: [PATCH v6 3/4] ALSA: cs35l41: Add shared boost feature

Shared boost allows two amplifiers to share a single boost circuit by communicating on the MDSYNC bus. The passive amplifier does not control the boost and receives data from the active amplifier.

Shared Boost is not supported in HDA Systems. Based on David Rhodes shared boost patches.

Signed-off-by: Lucas Tanure lucas.tanure@collabora.com --- include/sound/cs35l41.h | 13 +++++- sound/pci/hda/cs35l41_hda.c | 6 +-- sound/soc/codecs/cs35l41-lib.c | 73 +++++++++++++++++++++++++++++++++- sound/soc/codecs/cs35l41.c | 27 ++++++++++++- sound/soc/codecs/cs35l41.h | 1 + 5 files changed, 113 insertions(+), 7 deletions(-)

diff --git a/include/sound/cs35l41.h b/include/sound/cs35l41.h index 9ac5918269a5..7239d943942c 100644 --- a/include/sound/cs35l41.h +++ b/include/sound/cs35l41.h @@ -11,6 +11,7 @@ #define __CS35L41_H

#include <linux/regmap.h> +#include <linux/completion.h> #include <linux/firmware/cirrus/cs_dsp.h>

#define CS35L41_FIRSTREG 0x00000000 @@ -677,6 +678,7 @@

#define CS35L36_PUP_DONE_IRQ_UNMASK 0x5F #define CS35L36_PUP_DONE_IRQ_MASK 0xBF +#define CS35L41_SYNC_EN_MASK BIT(8)

#define CS35L41_AMP_SHORT_ERR 0x80000000 #define CS35L41_BST_SHORT_ERR 0x0100 @@ -686,6 +688,7 @@ #define CS35L41_BST_DCM_UVP_ERR 0x80 #define CS35L41_OTP_BOOT_DONE 0x02 #define CS35L41_PLL_UNLOCK 0x10 +#define CS35L41_PLL_LOCK BIT(1) #define CS35L41_OTP_BOOT_ERR 0x80000000

#define CS35L41_AMP_SHORT_ERR_RLS 0x02 @@ -705,6 +708,8 @@ #define CS35L41_INT1_MASK_DEFAULT 0x7FFCFE3F #define CS35L41_INT1_UNMASK_PUP 0xFEFFFFFF #define CS35L41_INT1_UNMASK_PDN 0xFF7FFFFF +#define CS35L41_INT3_PLL_LOCK_SHIFT 1 +#define CS35L41_INT3_PLL_LOCK_MASK BIT(CS35L41_INT3_PLL_LOCK_SHIFT)

#define CS35L41_GPIO_DIR_MASK 0x80000000 #define CS35L41_GPIO_DIR_SHIFT 31 @@ -742,6 +747,11 @@ enum cs35l41_boost_type { CS35L41_INT_BOOST, CS35L41_EXT_BOOST, + CS35L41_SHD_BOOST_ACTV, + CS35L41_SHD_BOOST_PASS, + + // Not present in Binding Documentation, so no system should use this value. + // This value is only used in CLSA0100 Laptop CS35L41_EXT_BOOST_NO_VSPK_SWITCH, };

@@ -891,6 +901,7 @@ int cs35l41_exit_hibernate(struct device *dev, struct regmap *regmap); int cs35l41_init_boost(struct device *dev, struct regmap *regmap, struct cs35l41_hw_cfg *hw_cfg); bool cs35l41_safe_reset(struct regmap *regmap, enum cs35l41_boost_type b_type); -int cs35l41_global_enable(struct regmap *regmap, enum cs35l41_boost_type b_type, int enable); +int cs35l41_global_enable(struct regmap *regmap, enum cs35l41_boost_type b_type, int enable, + struct completion *pll_lock);

#endif /* __CS35L41_H */ diff --git a/sound/pci/hda/cs35l41_hda.c b/sound/pci/hda/cs35l41_hda.c index 75020edd39e7..b5210abb5141 100644 --- a/sound/pci/hda/cs35l41_hda.c +++ b/sound/pci/hda/cs35l41_hda.c @@ -514,13 +514,13 @@ static void cs35l41_hda_playback_hook(struct device *dev, int action) break; case HDA_GEN_PCM_ACT_PREPARE: mutex_lock(&cs35l41->fw_mutex); - ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 1); + ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 1, NULL); mutex_unlock(&cs35l41->fw_mutex); break; case HDA_GEN_PCM_ACT_CLEANUP: mutex_lock(&cs35l41->fw_mutex); regmap_multi_reg_write(reg, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute)); - ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 0); + ret = cs35l41_global_enable(reg, cs35l41->hw_cfg.bst_type, 0, NULL); mutex_unlock(&cs35l41->fw_mutex); break; case HDA_GEN_PCM_ACT_CLOSE: @@ -672,7 +672,7 @@ static int cs35l41_runtime_suspend(struct device *dev) if (cs35l41->playback_started) { regmap_multi_reg_write(cs35l41->regmap, cs35l41_hda_mute, ARRAY_SIZE(cs35l41_hda_mute)); - cs35l41_global_enable(cs35l41->regmap, cs35l41->hw_cfg.bst_type, 0); + cs35l41_global_enable(cs35l41->regmap, cs35l41->hw_cfg.bst_type, 0, NULL); regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, CS35L41_AMP_EN_MASK, 0 << CS35L41_AMP_EN_SHIFT); if (cs35l41->hw_cfg.bst_type == CS35L41_EXT_BOOST) diff --git a/sound/soc/codecs/cs35l41-lib.c b/sound/soc/codecs/cs35l41-lib.c index 04be71435491..7c640d13abc5 100644 --- a/sound/soc/codecs/cs35l41-lib.c +++ b/sound/soc/codecs/cs35l41-lib.c @@ -1114,12 +1114,31 @@ static const struct reg_sequence cs35l41_reset_to_safe[] = { { 0x00000040, 0x00000033 }, };

+static const struct reg_sequence cs35l41_actv_seq[] = { + /* SYNC_BST_CTL_RX_EN = 1; SYNC_BST_CTL_TX_EN = 1 */ + {CS35L41_MDSYNC_EN, 0x00003000}, + /* BST_CTL_SEL = MDSYNC */ + {CS35L41_BSTCVRT_VCTRL2, 0x00000002}, +}; + +static const struct reg_sequence cs35l41_pass_seq[] = { + /* SYNC_BST_CTL_RX_EN = 1; SYNC_BST_CTL_TX_EN = 0 */ + {CS35L41_MDSYNC_EN, 0x00002000}, + /* BST_EN = 0 */ + {CS35L41_PWR_CTRL2, 0x00003300}, + /* BST_CTL_SEL = MDSYNC */ + {CS35L41_BSTCVRT_VCTRL2, 0x00000002}, +}; + int cs35l41_init_boost(struct device *dev, struct regmap *regmap, struct cs35l41_hw_cfg *hw_cfg) { int ret;

switch (hw_cfg->bst_type) { + case CS35L41_SHD_BOOST_ACTV: + regmap_multi_reg_write(regmap, cs35l41_actv_seq, ARRAY_SIZE(cs35l41_actv_seq)); + fallthrough; case CS35L41_INT_BOOST: ret = cs35l41_boost_config(dev, regmap, hw_cfg->bst_ind, hw_cfg->bst_cap, hw_cfg->bst_ipk); @@ -1138,6 +1157,10 @@ int cs35l41_init_boost(struct device *dev, struct regmap *regmap, ret = regmap_update_bits(regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK, CS35L41_BST_DIS_FET_OFF << CS35L41_BST_EN_SHIFT); break; + case CS35L41_SHD_BOOST_PASS: + ret = regmap_multi_reg_write(regmap, cs35l41_pass_seq, + ARRAY_SIZE(cs35l41_pass_seq)); + break; default: dev_err(dev, "Boost type %d not supported\n", hw_cfg->bst_type); ret = -EINVAL; @@ -1165,11 +1188,59 @@ bool cs35l41_safe_reset(struct regmap *regmap, enum cs35l41_boost_type b_type) } EXPORT_SYMBOL_GPL(cs35l41_safe_reset);

-int cs35l41_global_enable(struct regmap *regmap, enum cs35l41_boost_type b_type, int enable) +int cs35l41_global_enable(struct regmap *regmap, enum cs35l41_boost_type b_type, int enable, + struct completion *pll_lock) { int ret; + unsigned int gpio1_func, pad_control, pwr_ctrl1, pwr_ctrl3; + struct reg_sequence cs35l41_mdsync_down_seq[] = { + {CS35L41_PWR_CTRL3, 0}, + {CS35L41_GPIO_PAD_CONTROL, 0}, + {CS35L41_PWR_CTRL1, 0, 3000}, + }; + struct reg_sequence cs35l41_mdsync_up_seq[] = { + {CS35L41_PWR_CTRL3, 0}, + {CS35L41_PWR_CTRL1, 0x00000000, 3000}, + {CS35L41_PWR_CTRL1, 0x00000001, 3000}, + };

switch (b_type) { + case CS35L41_SHD_BOOST_ACTV: + case CS35L41_SHD_BOOST_PASS: + regmap_read(regmap, CS35L41_PWR_CTRL3, &pwr_ctrl3); + regmap_read(regmap, CS35L41_GPIO_PAD_CONTROL, &pad_control); + + pwr_ctrl3 &= ~CS35L41_SYNC_EN_MASK; + pwr_ctrl1 = enable << CS35L41_GLOBAL_EN_SHIFT; + + gpio1_func = enable ? CS35L41_GPIO1_MDSYNC : CS35L41_GPIO1_HIZ; + gpio1_func <<= CS35L41_GPIO1_CTRL_SHIFT; + + pad_control &= ~CS35L41_GPIO1_CTRL_MASK; + pad_control |= gpio1_func & CS35L41_GPIO1_CTRL_MASK; + + cs35l41_mdsync_down_seq[0].def = pwr_ctrl3; + cs35l41_mdsync_down_seq[1].def = pad_control; + cs35l41_mdsync_down_seq[2].def = pwr_ctrl1; + ret = regmap_multi_reg_write(regmap, cs35l41_mdsync_down_seq, + ARRAY_SIZE(cs35l41_mdsync_down_seq)); + if (!enable) + break; + + if (!pll_lock) + return -EINVAL; + + ret = wait_for_completion_timeout(pll_lock, msecs_to_jiffies(1000)); + if (ret == 0) { + ret = -ETIMEDOUT; + } else { + regmap_read(regmap, CS35L41_PWR_CTRL3, &pwr_ctrl3); + pwr_ctrl3 |= CS35L41_SYNC_EN_MASK; + cs35l41_mdsync_up_seq[0].def = pwr_ctrl3; + ret = regmap_multi_reg_write(regmap, cs35l41_mdsync_up_seq, + ARRAY_SIZE(cs35l41_mdsync_up_seq)); + } + break; case CS35L41_INT_BOOST: ret = regmap_update_bits(regmap, CS35L41_PWR_CTRL1, CS35L41_GLOBAL_EN_MASK, enable << CS35L41_GLOBAL_EN_SHIFT); diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c index c006364e5335..1624510d09c0 100644 --- a/sound/soc/codecs/cs35l41.c +++ b/sound/soc/codecs/cs35l41.c @@ -360,6 +360,7 @@ static void cs35l41_boost_enable(struct cs35l41_private *cs35l41, unsigned int e { switch (cs35l41->hw_cfg.bst_type) { case CS35L41_INT_BOOST: + case CS35L41_SHD_BOOST_ACTV: enable = enable ? CS35L41_BST_EN_DEFAULT : CS35L41_BST_DIS_FET_OFF; regmap_update_bits(cs35l41->regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK, enable << CS35L41_BST_EN_SHIFT); @@ -455,6 +456,12 @@ static irqreturn_t cs35l41_irq(int irq, void *data) ret = IRQ_HANDLED; }

+ if (status[2] & CS35L41_PLL_LOCK) { + regmap_write(cs35l41->regmap, CS35L41_IRQ1_STATUS3, CS35L41_PLL_LOCK); + complete(&cs35l41->pll_lock); + ret = IRQ_HANDLED; + } + done: pm_runtime_mark_last_busy(cs35l41->dev); pm_runtime_put_autosuspend(cs35l41->dev); @@ -492,10 +499,12 @@ static int cs35l41_main_amp_event(struct snd_soc_dapm_widget *w, cs35l41_pup_patch, ARRAY_SIZE(cs35l41_pup_patch));

- cs35l41_global_enable(cs35l41->regmap, cs35l41->hw_cfg.bst_type, 1); + cs35l41_global_enable(cs35l41->regmap, cs35l41->hw_cfg.bst_type, 1, + &cs35l41->pll_lock); break; case SND_SOC_DAPM_POST_PMD: - cs35l41_global_enable(cs35l41->regmap, cs35l41->hw_cfg.bst_type, 0); + cs35l41_global_enable(cs35l41->regmap, cs35l41->hw_cfg.bst_type, 0, + &cs35l41->pll_lock);

ret = regmap_read_poll_timeout(cs35l41->regmap, CS35L41_IRQ1_STATUS1, val, val & CS35L41_PDN_DONE_MASK, @@ -802,6 +811,10 @@ static const struct snd_pcm_hw_constraint_list cs35l41_constraints = { static int cs35l41_pcm_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { + struct cs35l41_private *cs35l41 = snd_soc_component_get_drvdata(dai->component); + + reinit_completion(&cs35l41->pll_lock); + if (substream->runtime) return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, @@ -1252,6 +1265,10 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, const struct cs35l41_hw_cfg * /* Set interrupt masks for critical errors */ regmap_write(cs35l41->regmap, CS35L41_IRQ1_MASK1, CS35L41_INT1_MASK_DEFAULT); + if (cs35l41->hw_cfg.bst_type == CS35L41_SHD_BOOST_PASS || + cs35l41->hw_cfg.bst_type == CS35L41_SHD_BOOST_ACTV) + regmap_update_bits(cs35l41->regmap, CS35L41_IRQ1_MASK3, CS35L41_INT3_PLL_LOCK_MASK, + 0 << CS35L41_INT3_PLL_LOCK_SHIFT);

ret = devm_request_threaded_irq(cs35l41->dev, cs35l41->irq, NULL, cs35l41_irq, IRQF_ONESHOT | IRQF_SHARED | irq_pol, @@ -1275,6 +1292,8 @@ int cs35l41_probe(struct cs35l41_private *cs35l41, const struct cs35l41_hw_cfg * if (ret < 0) goto err;

+ init_completion(&cs35l41->pll_lock); + pm_runtime_set_autosuspend_delay(cs35l41->dev, 3000); pm_runtime_use_autosuspend(cs35l41->dev); pm_runtime_mark_last_busy(cs35l41->dev); @@ -1317,6 +1336,10 @@ void cs35l41_remove(struct cs35l41_private *cs35l41) pm_runtime_disable(cs35l41->dev);

regmap_write(cs35l41->regmap, CS35L41_IRQ1_MASK1, 0xFFFFFFFF); + if (cs35l41->hw_cfg.bst_type == CS35L41_SHD_BOOST_PASS || + cs35l41->hw_cfg.bst_type == CS35L41_SHD_BOOST_ACTV) + regmap_update_bits(cs35l41->regmap, CS35L41_IRQ1_MASK3, CS35L41_INT3_PLL_LOCK_MASK, + 1 << CS35L41_INT3_PLL_LOCK_SHIFT); kfree(cs35l41->dsp.system_name); wm_adsp2_remove(&cs35l41->dsp); cs35l41_safe_reset(cs35l41->regmap, cs35l41->hw_cfg.bst_type); diff --git a/sound/soc/codecs/cs35l41.h b/sound/soc/codecs/cs35l41.h index c85cbc1dd333..34d967d4372b 100644 --- a/sound/soc/codecs/cs35l41.h +++ b/sound/soc/codecs/cs35l41.h @@ -33,6 +33,7 @@ struct cs35l41_private { int irq; /* GPIO for /RST */ struct gpio_desc *reset_gpio; + struct completion pll_lock; };

int cs35l41_probe(struct cs35l41_private *cs35l41, const struct cs35l41_hw_cfg *hw_cfg);

-- 2.39.2

David Rhodes

10:56 p.m.

New subject: [PATCH v6 3/4] ALSA: cs35l41: Add shared boost feature

On 2/22/23 03:32, Lucas Tanure wrote:

...

+static const struct reg_sequence cs35l41_actv_seq[] = {

/* SYNC_BST_CTL_RX_EN = 1; SYNC_BST_CTL_TX_EN = 1 */

{CS35L41_MDSYNC_EN, 0x00003000},

/* BST_CTL_SEL = MDSYNC */

{CS35L41_BSTCVRT_VCTRL2, 0x00000002},

+};

+static const struct reg_sequence cs35l41_pass_seq[] = {

/* SYNC_BST_CTL_RX_EN = 1; SYNC_BST_CTL_TX_EN = 0 */

{CS35L41_MDSYNC_EN, 0x00002000},

/* BST_EN = 0 */

{CS35L41_PWR_CTRL2, 0x00003300},

/* BST_CTL_SEL = MDSYNC */

{CS35L41_BSTCVRT_VCTRL2, 0x00000002},

+};

The passive device only needs to use TX, not RX. It is transmitting its boost target voltage to the bus so that the active amp can boost according to the combined target.

Should be: static const struct reg_sequence cs35l41_pass_seq[] = { /* SYNC_BST_CTL_RX_EN = 0; SYNC_BST_CTL_TX_EN = 1 */ {CS35L41_MDSYNC_EN, 0x00001000}, ...

Thanks, David

Lucas Tanure

10:32 a.m.

New subject: [PATCH v6 4/4] ASoC: dt-bindings: cirrus,cs35l41: Document CS35l41 shared boost

Describe the properties used for shared boost configuration. Based on David Rhodes shared boost patches.

Signed-off-by: Lucas Tanure lucas.tanure@collabora.com Acked-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org --- .../devicetree/bindings/sound/cirrus,cs35l41.yaml | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml index 18fb471aa891..14dea1feefc5 100644 --- a/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml +++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l41.yaml @@ -85,11 +85,19 @@ properties: boost-cap-microfarad. External Boost must have GPIO1 as GPIO output. GPIO1 will be set high to enable boost voltage. + Shared boost allows two amplifiers to share a single boost circuit by + communicating on the MDSYNC bus. The active amplifier controls the boost + circuit using combined data from both amplifiers. GPIO1 should be + configured for Sync when shared boost is used. Shared boost is not + compatible with External boost. Active amplifier requires + boost-peak-milliamp, boost-ind-nanohenry and boost-cap-microfarad. 0 = Internal Boost 1 = External Boost + 2 = Shared Boost Active + 3 = Shared Boost Passive $ref: /schemas/types.yaml#/definitions/uint32 minimum: 0 - maximum: 1 + maximum: 3

cirrus,gpio1-polarity-invert: description:

-- 2.39.2

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David Rhodes
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