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Diffstat (limited to 'drivers/ptp')
-rw-r--r--drivers/ptp/ptp_clockmatrix.c90
1 files changed, 11 insertions, 79 deletions
diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c
index eec0a74d5fa6..241bff049b77 100644
--- a/drivers/ptp/ptp_clockmatrix.c
+++ b/drivers/ptp/ptp_clockmatrix.c
@@ -229,7 +229,6 @@ static int idtcm_page_offset(struct idtcm *idtcm, u8 val)
buf[3] = 0x20;
err = idtcm_xfer_write(idtcm, PAGE_ADDR, buf, sizeof(buf));
-
if (err) {
idtcm->page_offset = 0xff;
dev_err(&idtcm->client->dev, "failed to set page offset");
@@ -254,7 +253,6 @@ static int _idtcm_rdwr(struct idtcm *idtcm,
lo = regaddr & 0xff;
err = idtcm_page_offset(idtcm, hi);
-
if (err)
return err;
@@ -312,7 +310,6 @@ static int wait_for_boot_status_ready(struct idtcm *idtcm)
do {
err = read_boot_status(idtcm, &status);
-
if (err)
return err;
@@ -415,14 +412,12 @@ static int _idtcm_gettime(struct idtcm_channel *channel,
/* wait trigger to be 0 */
while (trigger & TOD_READ_TRIGGER_MASK) {
-
if (idtcm->calculate_overhead_flag)
idtcm->start_time = ktime_get_raw();
err = idtcm_read(idtcm, channel->tod_read_primary,
TOD_READ_PRIMARY_CMD, &trigger,
sizeof(trigger));
-
if (err)
return err;
@@ -432,7 +427,6 @@ static int _idtcm_gettime(struct idtcm_channel *channel,
err = idtcm_read(idtcm, channel->tod_read_primary,
TOD_READ_PRIMARY, buf, sizeof(buf));
-
if (err)
return err;
@@ -595,7 +589,6 @@ static int sync_source_dpll_tod_pps(u16 tod_addr, u8 *sync_src)
static int idtcm_sync_pps_output(struct idtcm_channel *channel)
{
struct idtcm *idtcm = channel->idtcm;
-
u8 pll;
u8 sync_src;
u8 qn;
@@ -604,7 +597,6 @@ static int idtcm_sync_pps_output(struct idtcm_channel *channel)
u8 out8_mux = 0;
u8 out11_mux = 0;
u8 temp;
-
u16 output_mask = channel->output_mask;
err = sync_source_dpll_tod_pps(channel->tod_n, &sync_src);
@@ -681,7 +673,6 @@ static int _idtcm_set_dpll_hw_tod(struct idtcm_channel *channel,
enum hw_tod_write_trig_sel wr_trig)
{
struct idtcm *idtcm = channel->idtcm;
-
u8 buf[TOD_BYTE_COUNT];
u8 cmd;
int err;
@@ -691,7 +682,6 @@ static int _idtcm_set_dpll_hw_tod(struct idtcm_channel *channel,
/* Configure HW TOD write trigger. */
err = idtcm_read(idtcm, channel->hw_dpll_n, HW_DPLL_TOD_CTRL_1,
&cmd, sizeof(cmd));
-
if (err)
return err;
@@ -700,20 +690,16 @@ static int _idtcm_set_dpll_hw_tod(struct idtcm_channel *channel,
err = idtcm_write(idtcm, channel->hw_dpll_n, HW_DPLL_TOD_CTRL_1,
&cmd, sizeof(cmd));
-
if (err)
return err;
if (wr_trig != HW_TOD_WR_TRIG_SEL_MSB) {
-
err = timespec_to_char_array(&local_ts, buf, sizeof(buf));
-
if (err)
return err;
err = idtcm_write(idtcm, channel->hw_dpll_n,
HW_DPLL_TOD_OVR__0, buf, sizeof(buf));
-
if (err)
return err;
}
@@ -725,7 +711,6 @@ static int _idtcm_set_dpll_hw_tod(struct idtcm_channel *channel,
&cmd, sizeof(cmd));
if (wr_trig == HW_TOD_WR_TRIG_SEL_MSB) {
-
if (idtcm->calculate_overhead_flag) {
/* Assumption: I2C @ 400KHz */
ktime_t diff = ktime_sub(ktime_get_raw(),
@@ -740,7 +725,6 @@ static int _idtcm_set_dpll_hw_tod(struct idtcm_channel *channel,
}
err = timespec_to_char_array(&local_ts, buf, sizeof(buf));
-
if (err)
return err;
@@ -764,7 +748,6 @@ static int _idtcm_set_dpll_scsr_tod(struct idtcm_channel *channel,
timespec64_add_ns(&local_ts, SETTIME_CORRECTION);
err = timespec_to_char_array(&local_ts, buf, sizeof(buf));
-
if (err)
return err;
@@ -868,7 +851,6 @@ static int _idtcm_settime_deprecated(struct idtcm_channel *channel,
int err;
err = _idtcm_set_dpll_hw_tod(channel, ts, HW_TOD_WR_TRIG_SEL_MSB);
-
if (err) {
dev_err(&idtcm->client->dev,
"%s: Set HW ToD failed", __func__);
@@ -893,7 +875,6 @@ static int idtcm_set_phase_pull_in_offset(struct idtcm_channel *channel,
int err;
int i;
struct idtcm *idtcm = channel->idtcm;
-
u8 buf[4];
for (i = 0; i < 4; i++) {
@@ -913,7 +894,6 @@ static int idtcm_set_phase_pull_in_slope_limit(struct idtcm_channel *channel,
int err;
u8 i;
struct idtcm *idtcm = channel->idtcm;
-
u8 buf[3];
if (max_ffo_ppb & 0xff000000)
@@ -934,12 +914,10 @@ static int idtcm_start_phase_pull_in(struct idtcm_channel *channel)
{
int err;
struct idtcm *idtcm = channel->idtcm;
-
u8 buf;
err = idtcm_read(idtcm, channel->dpll_phase_pull_in, PULL_IN_CTRL,
&buf, sizeof(buf));
-
if (err)
return err;
@@ -961,12 +939,10 @@ static int idtcm_do_phase_pull_in(struct idtcm_channel *channel,
int err;
err = idtcm_set_phase_pull_in_offset(channel, -offset_ns);
-
if (err)
return err;
err = idtcm_set_phase_pull_in_slope_limit(channel, max_ffo_ppb);
-
if (err)
return err;
@@ -982,7 +958,6 @@ static int set_tod_write_overhead(struct idtcm_channel *channel)
s64 lowest_ns = 0;
int err;
u8 i;
-
ktime_t start;
ktime_t stop;
ktime_t diff;
@@ -994,12 +969,10 @@ static int set_tod_write_overhead(struct idtcm_channel *channel)
buf, sizeof(buf));
for (i = 0; i < TOD_WRITE_OVERHEAD_COUNT_MAX; i++) {
-
start = ktime_get_raw();
err = idtcm_write(idtcm, channel->hw_dpll_n,
HW_DPLL_TOD_OVR__0, buf, sizeof(buf));
-
if (err)
return err;
@@ -1035,12 +1008,10 @@ static int _idtcm_adjtime_deprecated(struct idtcm_channel *channel, s64 delta)
idtcm->calculate_overhead_flag = 1;
err = set_tod_write_overhead(channel);
-
if (err)
return err;
err = _idtcm_gettime(channel, &ts);
-
if (err)
return err;
@@ -1275,7 +1246,6 @@ static int idtcm_load_firmware(struct idtcm *idtcm,
idtcm_state_machine_reset(idtcm);
for (len = fw->size; len > 0; len -= sizeof(*rec)) {
-
if (rec->reserved) {
dev_err(&idtcm->client->dev,
"bad firmware, reserved field non-zero");
@@ -1336,7 +1306,6 @@ static int idtcm_output_enable(struct idtcm_channel *channel,
}
err = idtcm_read(idtcm, (u16)base, OUT_CTRL_1, &val, sizeof(val));
-
if (err)
return err;
@@ -1359,11 +1328,8 @@ static int idtcm_output_mask_enable(struct idtcm_channel *channel,
outn = 0;
while (mask) {
-
if (mask & 0x1) {
-
err = idtcm_output_enable(channel, enable, outn);
-
if (err)
return err;
}
@@ -1453,7 +1419,6 @@ static int idtcm_set_pll_mode(struct idtcm_channel *channel,
static int _idtcm_adjphase(struct idtcm_channel *channel, s32 delta_ns)
{
struct idtcm *idtcm = channel->idtcm;
-
int err;
u8 i;
u8 buf[4] = {0};
@@ -1461,9 +1426,7 @@ static int _idtcm_adjphase(struct idtcm_channel *channel, s32 delta_ns)
s64 offset_ps;
if (channel->pll_mode != PLL_MODE_WRITE_PHASE) {
-
err = idtcm_set_pll_mode(channel, PLL_MODE_WRITE_PHASE);
-
if (err)
return err;
}
@@ -1539,15 +1502,13 @@ static int _idtcm_adjfine(struct idtcm_channel *channel, long scaled_ppm)
static int idtcm_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
{
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
struct idtcm *idtcm = channel->idtcm;
int err;
mutex_lock(&idtcm->reg_lock);
err = _idtcm_gettime(channel, ts);
-
if (err)
dev_err(&idtcm->client->dev, "Failed at line %d in %s!",
__LINE__, __func__);
@@ -1560,15 +1521,13 @@ static int idtcm_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts)
static int idtcm_settime_deprecated(struct ptp_clock_info *ptp,
const struct timespec64 *ts)
{
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
struct idtcm *idtcm = channel->idtcm;
int err;
mutex_lock(&idtcm->reg_lock);
err = _idtcm_settime_deprecated(channel, ts);
-
if (err)
dev_err(&idtcm->client->dev,
"Failed at line %d in %s!", __LINE__, __func__);
@@ -1581,15 +1540,13 @@ static int idtcm_settime_deprecated(struct ptp_clock_info *ptp,
static int idtcm_settime(struct ptp_clock_info *ptp,
const struct timespec64 *ts)
{
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
struct idtcm *idtcm = channel->idtcm;
int err;
mutex_lock(&idtcm->reg_lock);
err = _idtcm_settime(channel, ts, SCSR_TOD_WR_TYPE_SEL_ABSOLUTE);
-
if (err)
dev_err(&idtcm->client->dev,
"Failed at line %d in %s!", __LINE__, __func__);
@@ -1601,15 +1558,13 @@ static int idtcm_settime(struct ptp_clock_info *ptp,
static int idtcm_adjtime_deprecated(struct ptp_clock_info *ptp, s64 delta)
{
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
struct idtcm *idtcm = channel->idtcm;
int err;
mutex_lock(&idtcm->reg_lock);
err = _idtcm_adjtime_deprecated(channel, delta);
-
if (err)
dev_err(&idtcm->client->dev,
"Failed at line %d in %s!", __LINE__, __func__);
@@ -1621,8 +1576,7 @@ static int idtcm_adjtime_deprecated(struct ptp_clock_info *ptp, s64 delta)
static int idtcm_adjtime(struct ptp_clock_info *ptp, s64 delta)
{
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
struct idtcm *idtcm = channel->idtcm;
struct timespec64 ts;
enum scsr_tod_write_type_sel type;
@@ -1647,7 +1601,6 @@ static int idtcm_adjtime(struct ptp_clock_info *ptp, s64 delta)
mutex_lock(&idtcm->reg_lock);
err = _idtcm_settime(channel, &ts, type);
-
if (err)
dev_err(&idtcm->client->dev,
"Failed at line %d in %s!", __LINE__, __func__);
@@ -1659,17 +1612,13 @@ static int idtcm_adjtime(struct ptp_clock_info *ptp, s64 delta)
static int idtcm_adjphase(struct ptp_clock_info *ptp, s32 delta)
{
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
-
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
struct idtcm *idtcm = channel->idtcm;
-
int err;
mutex_lock(&idtcm->reg_lock);
err = _idtcm_adjphase(channel, delta);
-
if (err)
dev_err(&idtcm->client->dev,
"Failed at line %d in %s!", __LINE__, __func__);
@@ -1681,17 +1630,13 @@ static int idtcm_adjphase(struct ptp_clock_info *ptp, s32 delta)
static int idtcm_adjfine(struct ptp_clock_info *ptp, long scaled_ppm)
{
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
-
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
struct idtcm *idtcm = channel->idtcm;
-
int err;
mutex_lock(&idtcm->reg_lock);
err = _idtcm_adjfine(channel, scaled_ppm);
-
if (err)
dev_err(&idtcm->client->dev,
"Failed at line %d in %s!", __LINE__, __func__);
@@ -1705,9 +1650,7 @@ static int idtcm_enable(struct ptp_clock_info *ptp,
struct ptp_clock_request *rq, int on)
{
int err;
-
- struct idtcm_channel *channel =
- container_of(ptp, struct idtcm_channel, caps);
+ struct idtcm_channel *channel = container_of(ptp, struct idtcm_channel, caps);
switch (rq->type) {
case PTP_CLK_REQ_PEROUT:
@@ -1813,28 +1756,24 @@ static int _enable_pll_tod_sync(struct idtcm *idtcm,
*/
if (out0) {
err = idtcm_read(idtcm, out0, OUT_CTRL_1, &val, sizeof(val));
-
if (err)
return err;
val &= ~OUT_SYNC_DISABLE;
err = idtcm_write(idtcm, out0, OUT_CTRL_1, &val, sizeof(val));
-
if (err)
return err;
}
if (out1) {
err = idtcm_read(idtcm, out1, OUT_CTRL_1, &val, sizeof(val));
-
if (err)
return err;
val &= ~OUT_SYNC_DISABLE;
err = idtcm_write(idtcm, out1, OUT_CTRL_1, &val, sizeof(val));
-
if (err)
return err;
}
@@ -1854,7 +1793,6 @@ static int _enable_pll_tod_sync(struct idtcm *idtcm,
static int idtcm_enable_tod_sync(struct idtcm_channel *channel)
{
struct idtcm *idtcm = channel->idtcm;
-
u8 pll;
u8 sync_src;
u8 qn;
@@ -1896,8 +1834,7 @@ static int idtcm_enable_tod_sync(struct idtcm_channel *channel)
return -EINVAL;
}
- err = idtcm_read(idtcm, 0, HW_Q8_CTRL_SPARE,
- &temp, sizeof(temp));
+ err = idtcm_read(idtcm, 0, HW_Q8_CTRL_SPARE, &temp, sizeof(temp));
if (err)
return err;
@@ -1905,8 +1842,7 @@ static int idtcm_enable_tod_sync(struct idtcm_channel *channel)
Q9_TO_Q8_FANOUT_AND_CLOCK_SYNC_ENABLE_MASK)
out8_mux = 1;
- err = idtcm_read(idtcm, 0, HW_Q11_CTRL_SPARE,
- &temp, sizeof(temp));
+ err = idtcm_read(idtcm, 0, HW_Q11_CTRL_SPARE, &temp, sizeof(temp));
if (err)
return err;
@@ -1953,7 +1889,6 @@ static int idtcm_enable_tod_sync(struct idtcm_channel *channel)
if ((qn != 0) || (qn_plus_1 != 0))
err = _enable_pll_tod_sync(idtcm, pll, sync_src, qn,
qn_plus_1);
-
if (err)
return err;
}
@@ -2218,7 +2153,6 @@ static void ptp_clock_unregister_all(struct idtcm *idtcm)
struct idtcm_channel *channel;
for (i = 0; i < MAX_TOD; i++) {
-
channel = &idtcm->channel[i];
if (channel->ptp_clock)
@@ -2268,10 +2202,8 @@ static int idtcm_probe(struct i2c_client *client,
idtcm_set_version_info(idtcm);
err = idtcm_load_firmware(idtcm, &client->dev);
-
if (err)
- dev_warn(&idtcm->client->dev,
- "loading firmware failed with %d", err);
+ dev_warn(&idtcm->client->dev, "loading firmware failed with %d", err);
wait_for_chip_ready(idtcm);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 23:34:41 +0000