diff options
Diffstat (limited to 'drivers/ptp')
| -rw-r--r-- | drivers/ptp/ptp_ocp.c | 34 |
1 files changed, 23 insertions, 11 deletions
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c index 1eb99958a03d..6ed3ce37dc1a 100644 --- a/drivers/ptp/ptp_ocp.c +++ b/drivers/ptp/ptp_ocp.c @@ -215,6 +215,7 @@ struct ptp_ocp_sma_connector { enum ptp_ocp_sma_mode mode; bool fixed_fcn; bool fixed_dir; + bool disabled; }; #define OCP_BOARD_ID_LEN 13 @@ -521,6 +522,7 @@ static struct ocp_selector ptp_ocp_clock[] = { #define SMA_ENABLE BIT(15) #define SMA_SELECT_MASK ((1U << 15) - 1) +#define SMA_DISABLE 0x10000 static struct ocp_selector ptp_ocp_sma_in[] = { { .name = "10Mhz", .value = 0x00 }, @@ -530,6 +532,7 @@ static struct ocp_selector ptp_ocp_sma_in[] = { { .name = "TS2", .value = 0x08 }, { .name = "IRIG", .value = 0x10 }, { .name = "DCF", .value = 0x20 }, + { .name = "None", .value = SMA_DISABLE }, { } }; @@ -1627,7 +1630,7 @@ __handle_signal_inputs(struct ptp_ocp *bp, u32 val) */ static ssize_t -ptp_ocp_show_output(u32 val, char *buf, int default_idx) +ptp_ocp_show_output(u32 val, char *buf, int def_val) { const char *name; ssize_t count; @@ -1635,13 +1638,13 @@ ptp_ocp_show_output(u32 val, char *buf, int default_idx) count = sysfs_emit(buf, "OUT: "); name = ptp_ocp_select_name_from_val(ptp_ocp_sma_out, val); if (!name) - name = ptp_ocp_sma_out[default_idx].name; + name = ptp_ocp_select_name_from_val(ptp_ocp_sma_out, def_val); count += sysfs_emit_at(buf, count, "%s\n", name); return count; } static ssize_t -ptp_ocp_show_inputs(u32 val, char *buf, int default_idx) +ptp_ocp_show_inputs(u32 val, char *buf, int def_val) { const char *name; ssize_t count; @@ -1654,9 +1657,10 @@ ptp_ocp_show_inputs(u32 val, char *buf, int default_idx) count += sysfs_emit_at(buf, count, "%s ", name); } } - if (!val && default_idx >= 0) - count += sysfs_emit_at(buf, count, "%s ", - ptp_ocp_sma_in[default_idx].name); + if (!val && def_val >= 0) { + name = ptp_ocp_select_name_from_val(ptp_ocp_sma_in, def_val); + count += sysfs_emit_at(buf, count, "%s ", name); + } if (count) count--; count += sysfs_emit_at(buf, count, "\n"); @@ -1722,17 +1726,20 @@ ptp_ocp_sma_get(struct ptp_ocp *bp, int sma_nr, enum ptp_ocp_sma_mode mode) static ssize_t ptp_ocp_sma_show(struct ptp_ocp *bp, int sma_nr, char *buf, - int default_in_idx, int default_out_idx) + int default_in_val, int default_out_val) { struct ptp_ocp_sma_connector *sma = &bp->sma[sma_nr - 1]; u32 val; val = ptp_ocp_sma_get(bp, sma_nr, sma->mode) & SMA_SELECT_MASK; - if (sma->mode == SMA_MODE_IN) - return ptp_ocp_show_inputs(val, buf, default_in_idx); + if (sma->mode == SMA_MODE_IN) { + if (sma->disabled) + val = SMA_DISABLE; + return ptp_ocp_show_inputs(val, buf, default_in_val); + } - return ptp_ocp_show_output(val, buf, default_out_idx); + return ptp_ocp_show_output(val, buf, default_out_val); } static ssize_t @@ -1827,7 +1834,7 @@ ptp_ocp_sma_store(struct ptp_ocp *bp, const char *buf, int sma_nr) if (val < 0) return val; - if (mode != sma->mode && sma->fixed_dir) + if (sma->fixed_dir && (mode != sma->mode || val & SMA_DISABLE)) return -EOPNOTSUPP; if (sma->fixed_fcn) { @@ -1836,6 +1843,8 @@ ptp_ocp_sma_store(struct ptp_ocp *bp, const char *buf, int sma_nr) return 0; } + sma->disabled = !!(val & SMA_DISABLE); + if (mode != sma->mode) { if (mode == SMA_MODE_IN) ptp_ocp_sma_store_output(bp, sma_nr, 0); @@ -1847,6 +1856,9 @@ ptp_ocp_sma_store(struct ptp_ocp *bp, const char *buf, int sma_nr) if (!sma->fixed_dir) val |= SMA_ENABLE; /* add enable bit */ + if (sma->disabled) + val = 0; + if (mode == SMA_MODE_IN) ptp_ocp_sma_store_inputs(bp, sma_nr, val); else |