diff options
Diffstat (limited to 'src/soc/intel/common/hda_verb.c')
| -rw-r--r-- | src/soc/intel/common/hda_verb.c | 40 |
1 files changed, 10 insertions, 30 deletions
diff --git a/src/soc/intel/common/hda_verb.c b/src/soc/intel/common/hda_verb.c index 6c0ace7f64..83bbb59588 100644 --- a/src/soc/intel/common/hda_verb.c +++ b/src/soc/intel/common/hda_verb.c @@ -7,9 +7,6 @@ #include "hda_verb.h" -/* - * Set bits in a register and wait for status - */ static int set_bits(void *port, u32 mask, u32 val) { u32 reg32; @@ -22,9 +19,7 @@ static int set_bits(void *port, u32 mask, u32 val) reg32 |= val; write32(port, reg32); - /* Wait for readback of register to - * match what was just written to it - */ + /* Wait for readback of register to match what was just written to it */ count = 50; do { /* Wait 1ms based on BKDG wait time */ @@ -39,9 +34,6 @@ static int set_bits(void *port, u32 mask, u32 val) return 0; } -/* - * Probe for supported codecs - */ int hda_codec_detect(u8 *base) { u8 reg8; @@ -83,18 +75,16 @@ no_codec: } /* - * Wait 50usec for the codec to indicate it is ready - * no response would imply that the codec is non-operative + * Wait 50usec for the codec to indicate it is ready. + * No response would imply that the codec is non-operative. */ static int hda_wait_for_ready(u8 *base) { - /* Use a 50 usec timeout - the Linux kernel uses the - * same duration */ - + /* Use a 50 usec timeout - the Linux kernel uses the same duration */ int timeout = 50; while (timeout--) { - u32 reg32 = read32(base + HDA_ICII_REG); + u32 reg32 = read32(base + HDA_ICII_REG); if (!(reg32 & HDA_ICII_BUSY)) return 0; udelay(1); @@ -104,27 +94,23 @@ static int hda_wait_for_ready(u8 *base) } /* - * Wait 50usec for the codec to indicate that it accepted - * the previous command. No response would imply that the code - * is non-operative + * Wait 50usec for the codec to indicate that it accepted the previous command. + * No response would imply that the code is non-operative. */ static int hda_wait_for_valid(u8 *base) { u32 reg32; + /* Use a 50 usec timeout - the Linux kernel uses the same duration */ + int timeout = 50; /* Send the verb to the codec */ reg32 = read32(base + HDA_ICII_REG); reg32 |= HDA_ICII_BUSY | HDA_ICII_VALID; write32(base + HDA_ICII_REG, reg32); - /* Use a 50 usec timeout - the Linux kernel uses the - * same duration */ - - int timeout = 50; while (timeout--) { reg32 = read32(base + HDA_ICII_REG); - if ((reg32 & (HDA_ICII_VALID | HDA_ICII_BUSY)) == - HDA_ICII_VALID) + if ((reg32 & (HDA_ICII_VALID | HDA_ICII_BUSY)) == HDA_ICII_VALID) return 0; udelay(1); } @@ -177,9 +163,6 @@ static u32 hda_find_verb(u32 verb_table_bytes, return 0; } -/* - * Write a supplied verb table - */ int hda_codec_write(u8 *base, u32 size, const u32 *data) { int i; @@ -197,9 +180,6 @@ int hda_codec_write(u8 *base, u32 size, const u32 *data) return 0; } -/* - * Initialize codec, then find the verb table and write it - */ int hda_codec_init(u8 *base, int addr, int verb_size, const u32 *verb_data) { const u32 *verb; |