On 6/1/2022 7:38 AM, Pavan Kondeti wrote:
On Tue, May 31, 2022 at 09:44:52PM +0530, Krishna Kurapati wrote:
Add support for overriding electrical signal tuning parameters for
SNPS HS Phy.
Signed-off-by: Krishna Kurapati <quic_kriskura@xxxxxxxxxxx>
---
drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 268 +++++++++++++++++++++++++-
1 file changed, 266 insertions(+), 2 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
index 5d20378..3a17216 100644
--- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
+++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
@@ -52,6 +52,12 @@
#define USB2_SUSPEND_N BIT(2)
#define USB2_SUSPEND_N_SEL BIT(3)
<snip>
+static void qcom_snps_hsphy_override_param_update_val(
+ const struct override_param_map map,
+ s32 dt_val, struct phy_override_seq *seq_entry)
+{
+ int i;
+
+ /*
+ * Param table for each param is in increasing order
+ * of dt values. We need to iterate over the list to
+ * select the entry that has equal or the next highest value.
+ */
+ for (i = 0; i < map.table_size - 1; i++) {
+ if (map.param_table[i].value >= dt_val)
+ break;
+ }
+
+ seq_entry->need_update = true;
+ seq_entry->offset = map.reg_offset;
+ seq_entry->mask = map.param_mask;
+ seq_entry->value = map.param_table[i].reg << __ffs(map.param_mask);
+}
+
+static void qcom_snps_hsphy_read_override_param_seq(struct device *dev)
+{
+ struct device_node *node = dev->of_node;
+ s32 val;
+ int ret, i;
+ struct qcom_snps_hsphy *hsphy;
+ const struct override_param_map *cfg =
+ (struct override_param_map *) of_device_get_match_data(dev);
As mentioned in the previous patch-set, the explicit typecast is not needed.
overall, looks good to me. After fixing the above, feel free to use
Reviewed-by: Pavankumar Kondeti <quic_pkondeti@xxxxxxxxxxx>
Thanks,
Pavan
My bad, Thanks for the review Pavan. Will fix it in the next patch.
