@@ -131,7 +131,7 @@ static const struct cs8409_i2c_param cs42l42_init_reg_seq[] = {
{ CS42L42_RSENSE_CTL3, 0x00 },
{ CS42L42_TSENSE_CTL, 0x80 },
{ CS42L42_HS_BIAS_CTL, 0xC0 },
- { CS42L42_PWR_CTL1, 0x02 },
+ { CS42L42_PWR_CTL1, 0x02, 10000 },
{ CS42L42_ADC_OVFL_INT_MASK, 0xff },
{ CS42L42_MIXER_INT_MASK, 0xff },
{ CS42L42_SRC_INT_MASK, 0xff },
@@ -328,7 +328,7 @@ static const struct cs8409_i2c_param dolphin_c0_init_reg_seq[] = {
{ CS42L42_RSENSE_CTL3, 0x00 },
{ CS42L42_TSENSE_CTL, 0x80 },
{ CS42L42_HS_BIAS_CTL, 0xC0 },
- { CS42L42_PWR_CTL1, 0x02 },
+ { CS42L42_PWR_CTL1, 0x02, 10000 },
{ CS42L42_ADC_OVFL_INT_MASK, 0xff },
{ CS42L42_MIXER_INT_MASK, 0xff },
{ CS42L42_SRC_INT_MASK, 0xff },
@@ -384,7 +384,7 @@ static const struct cs8409_i2c_param dolphin_c1_init_reg_seq[] = {
{ CS42L42_RSENSE_CTL3, 0x00 },
{ CS42L42_TSENSE_CTL, 0x80 },
{ CS42L42_HS_BIAS_CTL, 0xC0 },
- { CS42L42_PWR_CTL1, 0x06 },
+ { CS42L42_PWR_CTL1, 0x06, 10000 },
{ CS42L42_ADC_OVFL_INT_MASK, 0xff },
{ CS42L42_MIXER_INT_MASK, 0xff },
{ CS42L42_SRC_INT_MASK, 0xff },
@@ -346,6 +346,11 @@ static int cs8409_i2c_bulk_write(struct sub_codec *scodec, const struct cs8409_i
if (cs8409_i2c_wait_complete(codec) < 0)
goto error;
+ /* Certain use cases may require a delay
+ * after a write operation before proceeding.
+ */
+ if (seq[i].delay)
+ fsleep(seq[i].delay);
}
mutex_unlock(&spec->i2c_mux);
@@ -888,7 +893,6 @@ static void cs42l42_resume(struct sub_codec *cs42l42)
/* Initialize CS42L42 companion codec */
cs8409_i2c_bulk_write(cs42l42, cs42l42->init_seq, cs42l42->init_seq_num);
- msleep(CS42L42_INIT_TIMEOUT_MS);
/* Clear interrupts, by reading interrupt status registers */
cs8409_i2c_bulk_read(cs42l42, irq_regs, ARRAY_SIZE(irq_regs));
@@ -229,7 +229,6 @@ enum cs8409_coefficient_index_registers {
#define CS42L42_I2C_SLEEP_US (2000)
#define CS42L42_PDN_TIMEOUT_US (250000)
#define CS42L42_PDN_SLEEP_US (2000)
-#define CS42L42_INIT_TIMEOUT_MS (45)
#define CS42L42_ANA_MUTE_AB (0x0C)
#define CS42L42_FULL_SCALE_VOL_MASK (2)
#define CS42L42_FULL_SCALE_VOL_0DB (0)
@@ -291,6 +290,7 @@ enum {
struct cs8409_i2c_param {
unsigned int addr;
unsigned int value;
+ unsigned int delay;
};
struct cs8409_cir_param {
This patch reduces the resume time by half and introduces an option to include a delay after a single write operation before continuing. Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com> --- sound/pci/hda/patch_cs8409-tables.c | 6 +++--- sound/pci/hda/patch_cs8409.c | 6 +++++- sound/pci/hda/patch_cs8409.h | 2 +- 3 files changed, 9 insertions(+), 5 deletions(-)