diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/k3_avs.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/misc/k3_avs.c b/drivers/misc/k3_avs.c index 9d950d034a5..0774e0a4c9e 100644 --- a/drivers/misc/k3_avs.c +++ b/drivers/misc/k3_avs.c @@ -121,6 +121,11 @@ static int k3_avs_program_voltage(struct k3_avs_privdata *priv, if (!vd->supply) return -ENODEV; + if (!volt) { + dev_err(priv->dev, "No efuse found for opp_%d\n", opp_id); + return -EINVAL; + } + vd->opp = opp_id; vd->flags |= VD_FLAG_INIT_DONE; @@ -193,6 +198,33 @@ static int match_opp(struct vd_data *vd, u32 freq) } /** + * k3_check_opp: Check for presence of opp efuse + * @dev: AVS device + * @vdd_id: voltage domain ID + * @opp_id: opp id to check if voltage is present + * + * Checks to see if an opp has voltage. k3_avs probe will populate + * voltage data if efuse is present. Returns 0 if data is valid. + */ +int k3_avs_check_opp(struct udevice *dev, int vdd_id, int opp_id) +{ + struct k3_avs_privdata *priv = dev_get_priv(dev); + struct vd_data *vd; + int volt; + + vd = get_vd(priv, vdd_id); + if (!vd) + return -EINVAL; + + volt = vd->opps[opp_id].volt; + if (volt) + return 0; + + printf("No efuse found for opp_%d\n", opp_id); + return -EINVAL; +} + +/** * k3_avs_notify_freq: Notify clock rate change towards AVS subsystem * @dev_id: Device ID for the clock to be changed * @clk_id: Clock ID for the clock to be changed |