diff options
Diffstat (limited to 'drivers/clk/bcm/clk-kona-setup.c')
| -rw-r--r-- | drivers/clk/bcm/clk-kona-setup.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/clk/bcm/clk-kona-setup.c b/drivers/clk/bcm/clk-kona-setup.c index 5a49deb49f2..757de19e3ea 100644 --- a/drivers/clk/bcm/clk-kona-setup.c +++ b/drivers/clk/bcm/clk-kona-setup.c @@ -81,6 +81,7 @@ static bool peri_clk_data_offsets_valid(struct kona_clk *bcm_clk) struct peri_clk_data *peri; struct bcm_clk_policy *policy; struct bcm_clk_gate *gate; + struct bcm_clk_hyst *hyst; struct bcm_clk_div *div; struct bcm_clk_sel *sel; struct bcm_clk_trig *trig; @@ -106,12 +107,25 @@ static bool peri_clk_data_offsets_valid(struct kona_clk *bcm_clk) } gate = &peri->gate; + hyst = &peri->hyst; if (gate_exists(gate)) { if (gate->offset > limit) { pr_err("%s: bad gate offset for %s (%u > %u)\n", __func__, name, gate->offset, limit); return false; } + + if (hyst_exists(hyst)) { + if (hyst->offset > limit) { + pr_err("%s: bad hysteresis offset for %s " + "(%u > %u)\n", __func__, + name, hyst->offset, limit); + return false; + } + } + } else if (hyst_exists(hyst)) { + pr_err("%s: hysteresis but no gate for %s\n", __func__, name); + return false; } div = &peri->div; @@ -261,6 +275,17 @@ static bool gate_valid(struct bcm_clk_gate *gate, const char *field_name, return true; } +static bool hyst_valid(struct bcm_clk_hyst *hyst, const char *clock_name) +{ + if (!bit_posn_valid(hyst->en_bit, "hysteresis enable", clock_name)) + return false; + + if (!bit_posn_valid(hyst->val_bit, "hysteresis value", clock_name)) + return false; + + return true; +} + /* * A selector bitfield must be valid. Its parent_sel array must * also be reasonable for the field. @@ -378,6 +403,7 @@ peri_clk_data_valid(struct kona_clk *bcm_clk) struct peri_clk_data *peri; struct bcm_clk_policy *policy; struct bcm_clk_gate *gate; + struct bcm_clk_hyst *hyst; struct bcm_clk_sel *sel; struct bcm_clk_div *div; struct bcm_clk_div *pre_div; @@ -405,6 +431,10 @@ peri_clk_data_valid(struct kona_clk *bcm_clk) if (gate_exists(gate) && !gate_valid(gate, "gate", name)) return false; + hyst = &peri->hyst; + if (hyst_exists(hyst) && !hyst_valid(hyst, name)) + return false; + sel = &peri->sel; if (selector_exists(sel)) { if (!sel_valid(sel, "selector", name)) |