Re: [PATCH v7 2/3] phy: qcom-snps: Add support for overriding phy tuning parameters
From: Krishna Kurapati PSSNV <hidden>
Date: 2022-06-01 06:32:09
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linux-arm-msm, linux-devicetree, linux-usb, lkml
On 6/1/2022 7:38 AM, Pavan Kondeti wrote:
On Tue, May 31, 2022 at 09:44:52PM +0530, Krishna Kurapati wrote:quoted
Add support for overriding electrical signal tuning parameters for SNPS HS Phy. Signed-off-by: Krishna Kurapati <redacted> --- 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>quoted
+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 <redacted> Thanks, Pavan
My bad, Thanks for the review Pavan. Will fix it in the next patch. -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy