This function is misnamed since it only applies to a single driver. Merge its fields into its parent.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v2: None
drivers/tpm/tpm_tis_i2c.c | 79 ++++++++++++++++++----------------------------- drivers/tpm/tpm_tis_i2c.h | 16 +++------- 2 files changed, 35 insertions(+), 60 deletions(-)
diff --git a/drivers/tpm/tpm_tis_i2c.c b/drivers/tpm/tpm_tis_i2c.c index 6a3991f..3ae1a4e 100644 --- a/drivers/tpm/tpm_tis_i2c.c +++ b/drivers/tpm/tpm_tis_i2c.c @@ -531,7 +531,7 @@ static int check_locality(struct tpm_chip *chip, int loc) return rc;
if ((buf & mask) == mask) { - chip->vendor.locality = loc; + chip->locality = loc; return loc; }
@@ -567,7 +567,7 @@ static int request_locality(struct tpm_chip *chip, int loc)
/* Wait for burstcount */ start = get_timer(0); - stop = chip->vendor.timeout_a; + stop = chip->timeout_a; do { if (check_locality(chip, loc) >= 0) return loc; @@ -582,7 +582,7 @@ static u8 tpm_tis_i2c_status(struct tpm_chip *chip) /* NOTE: Since i2c read may fail, return 0 in this case --> time-out */ u8 buf;
- if (iic_tpm_read(TPM_STS(chip->vendor.locality), &buf, 1) < 0) + if (iic_tpm_read(TPM_STS(chip->locality), &buf, 1) < 0) return 0; else return buf; @@ -596,7 +596,7 @@ static void tpm_tis_i2c_ready(struct tpm_chip *chip) u8 buf = TPM_STS_COMMAND_READY;
debug("%s\n", __func__); - rc = iic_tpm_write_long(TPM_STS(chip->vendor.locality), &buf, 1); + rc = iic_tpm_write_long(TPM_STS(chip->locality), &buf, 1); if (rc) debug("%s: rc=%d\n", __func__, rc); } @@ -610,10 +610,10 @@ static ssize_t get_burstcount(struct tpm_chip *chip) /* Wait for burstcount */ /* XXX: Which timeout value? Spec has 2 answers (c & d) */ start = get_timer(0); - stop = chip->vendor.timeout_d; + stop = chip->timeout_d; do { /* Note: STS is little endian */ - addr = TPM_STS(chip->vendor.locality) + 1; + addr = TPM_STS(chip->locality) + 1; if (iic_tpm_read(addr, buf, 3) < 0) burstcnt = 0; else @@ -666,7 +666,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count) if (burstcnt > (count - size)) burstcnt = count - size;
- rc = iic_tpm_read(TPM_DATA_FIFO(chip->vendor.locality), + rc = iic_tpm_read(TPM_DATA_FIFO(chip->locality), &(buf[size]), burstcnt); if (rc == 0) size += burstcnt; @@ -708,7 +708,7 @@ static int tpm_tis_i2c_recv(struct tpm_chip *chip, u8 *buf, size_t count) goto out; }
- wait_for_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c, &status); + wait_for_stat(chip, TPM_STS_VALID, chip->timeout_c, &status); if (status & TPM_STS_DATA_AVAIL) { /* Retry? */ error("Error left over data\n"); size = -EIO; @@ -722,7 +722,7 @@ out: * so we sleep rather than keeping the bus busy */ udelay(2000); - release_locality(chip, chip->vendor.locality, 0); + release_locality(chip, chip->locality, 0);
return size; } @@ -746,7 +746,7 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len) if ((status & TPM_STS_COMMAND_READY) == 0) { tpm_tis_i2c_ready(chip); if (wait_for_stat(chip, TPM_STS_COMMAND_READY, - chip->vendor.timeout_b, &status) < 0) { + chip->timeout_b, &status) < 0) { rc = -ETIME; goto out_err; } @@ -768,7 +768,7 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len) burstcnt = CONFIG_TPM_TIS_I2C_BURST_LIMITATION; #endif /* CONFIG_TPM_TIS_I2C_BURST_LIMITATION */
- rc = iic_tpm_write(TPM_DATA_FIFO(chip->vendor.locality), + rc = iic_tpm_write(TPM_DATA_FIFO(chip->locality), &(buf[count]), burstcnt); if (rc == 0) count += burstcnt; @@ -779,7 +779,7 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len) goto out_err; } rc = wait_for_stat(chip, TPM_STS_VALID, - chip->vendor.timeout_c, &status); + chip->timeout_c, &status); if (rc) goto out_err;
@@ -791,7 +791,7 @@ static int tpm_tis_i2c_send(struct tpm_chip *chip, u8 *buf, size_t len) }
/* Go and do it */ - iic_tpm_write(TPM_STS(chip->vendor.locality), &sts, 1); + iic_tpm_write(TPM_STS(chip->locality), &sts, 1); debug("done\n");
return len; @@ -804,18 +804,11 @@ out_err: * so we sleep rather than keeping the bus busy */ udelay(2000); - release_locality(chip, chip->vendor.locality, 0); + release_locality(chip, chip->locality, 0);
return rc; }
-static struct tpm_vendor_specific tpm_tis_i2c = { - .req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID, - .req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID, - .req_canceled = TPM_STS_COMMAND_READY, -}; - - static enum i2c_chip_type tpm_vendor_chip_type(void) { #if CONFIG_IS_ENABLED(OF_CONTROL) @@ -832,25 +825,25 @@ static enum i2c_chip_type tpm_vendor_chip_type(void)
int tpm_vendor_init(struct udevice *dev) { - struct tpm_chip *chip; + struct tpm_chip *chip = &g_chip; u32 vendor; u32 expected_did_vid;
tpm_dev.dev = dev; tpm_dev.chip_type = tpm_vendor_chip_type(); - - chip = tpm_register_hardware(&tpm_tis_i2c); - if (chip < 0) - return -ENODEV; + chip->is_open = 1;
/* Disable interrupts (not supported) */ - chip->vendor.irq = 0; + chip->irq = 0;
/* Default timeouts */ - chip->vendor.timeout_a = TIS_SHORT_TIMEOUT; - chip->vendor.timeout_b = TIS_LONG_TIMEOUT; - chip->vendor.timeout_c = TIS_SHORT_TIMEOUT; - chip->vendor.timeout_d = TIS_SHORT_TIMEOUT; + chip->timeout_a = TIS_SHORT_TIMEOUT; + chip->timeout_b = TIS_LONG_TIMEOUT; + chip->timeout_c = TIS_SHORT_TIMEOUT; + chip->timeout_d = TIS_SHORT_TIMEOUT; + chip->req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID; + chip->req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID; + chip->req_canceled = TPM_STS_COMMAND_READY;
if (request_locality(chip, 0) < 0) return -ENODEV; @@ -887,7 +880,7 @@ int tpm_vendor_init(struct udevice *dev)
void tpm_vendor_cleanup(struct tpm_chip *chip) { - release_locality(chip, chip->vendor.locality, 1); + release_locality(chip, chip->locality, 1); }
/* Returns max number of milliseconds to wait */ @@ -906,7 +899,7 @@ static unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip, }
if (duration_idx != TPM_UNDEFINED) - duration = chip->vendor.duration[duration_idx]; + duration = chip->duration[duration_idx];
if (duration <= 0) return 2 * 60 * HZ; /* Two minutes timeout */ @@ -943,7 +936,7 @@ static ssize_t tpm_transmit(const unsigned char *buf, size_t bufsiz) goto out; }
- if (chip->vendor.irq) + if (chip->irq) goto out_recv;
start = get_timer(0); @@ -951,13 +944,13 @@ static ssize_t tpm_transmit(const unsigned char *buf, size_t bufsiz) do { debug("waiting for status... %ld %ld\n", start, stop); u8 status = tpm_tis_i2c_status(chip); - if ((status & chip->vendor.req_complete_mask) == - chip->vendor.req_complete_val) { + if ((status & chip->req_complete_mask) == + chip->req_complete_val) { debug("...got it;\n"); goto out_recv; }
- if (status == chip->vendor.req_canceled) { + if (status == chip->req_canceled) { error("Operation Canceled\n"); rc = -ECANCELED; goto out; @@ -1062,18 +1055,6 @@ static int tpm_decode_config(struct tpm *dev) return 0; }
-struct tpm_chip *tpm_register_hardware(const struct tpm_vendor_specific *entry) -{ - struct tpm_chip *chip; - - /* Driver specific per-device data */ - chip = &g_chip; - memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific)); - chip->is_open = 1; - - return chip; -} - int tis_init(void) { if (tpm.inited) diff --git a/drivers/tpm/tpm_tis_i2c.h b/drivers/tpm/tpm_tis_i2c.h index 426c519..2a4ad77 100644 --- a/drivers/tpm/tpm_tis_i2c.h +++ b/drivers/tpm/tpm_tis_i2c.h @@ -35,21 +35,17 @@ enum tpm_timeout {
struct tpm_chip;
-struct tpm_vendor_specific { - const u8 req_complete_mask; - const u8 req_complete_val; - const u8 req_canceled; +struct tpm_chip { + int is_open; + u8 req_complete_mask; + u8 req_complete_val; + u8 req_canceled; int irq; int locality; unsigned long timeout_a, timeout_b, timeout_c, timeout_d; /* msec */ unsigned long duration[3]; /* msec */ };
-struct tpm_chip { - int is_open; - struct tpm_vendor_specific vendor; -}; - struct tpm_input_header { __be16 tag; __be32 length; @@ -106,8 +102,6 @@ struct tpm_cmd_t { union tpm_cmd_params params; } __packed;
-struct tpm_chip *tpm_register_hardware(const struct tpm_vendor_specific *); - struct udevice; int tpm_vendor_init(struct udevice *dev);