backlight: qcom-wled: Support ovp values for PMI8994

WLED4 found in PMI8994 supports different ovp values.

Fixes: 6fc632d3e3e0 ("video: backlight: qcom-wled: Add PMI8994 compatible")
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: Daniel Thompson (RISCstar) <danielt@kernel.org>
Link: https://patch.msgid.link/20260116-pmi8950-wled-v3-2-e6c93de84079@mainlining.org
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c
index a63bb42c8f8b0333cd6d0ddc5bda93916da3fef3..5decbd39b789905097dbfd7b089fd8dd8c0b242e 100644 (file)
--- a/drivers/video/backlight/qcom-wled.c
+++ b/drivers/video/backlight/qcom-wled.c
@@ -1244,6 +1244,15 @@ static const struct wled_var_cfg wled4_ovp_cfg = {
        .size = ARRAY_SIZE(wled4_ovp_values),
 };
 
+static const u32 pmi8994_wled_ovp_values[] = {
+       31000, 29500, 19400, 17800,
+};
+
+static const struct wled_var_cfg pmi8994_wled_ovp_cfg = {
+       .values = pmi8994_wled_ovp_values,
+       .size = ARRAY_SIZE(pmi8994_wled_ovp_values),
+};
+
 static inline u32 wled5_ovp_values_fn(u32 idx)
 {
        /*
@@ -1357,6 +1366,29 @@ static int wled_configure(struct wled *wled)
                },
        };
 
+       const struct wled_u32_opts pmi8994_wled_opts[] = {
+               {
+                       .name = "qcom,current-boost-limit",
+                       .val_ptr = &cfg->boost_i_limit,
+                       .cfg = &wled4_boost_i_limit_cfg,
+               },
+               {
+                       .name = "qcom,current-limit-microamp",
+                       .val_ptr = &cfg->string_i_limit,
+                       .cfg = &wled4_string_i_limit_cfg,
+               },
+               {
+                       .name = "qcom,ovp-millivolt",
+                       .val_ptr = &cfg->ovp,
+                       .cfg = &pmi8994_wled_ovp_cfg,
+               },
+               {
+                       .name = "qcom,switching-freq",
+                       .val_ptr = &cfg->switch_freq,
+                       .cfg = &wled3_switch_freq_cfg,
+               },
+       };
+
        const struct wled_u32_opts wled5_opts[] = {
                {
                        .name = "qcom,current-boost-limit",
@@ -1423,8 +1455,13 @@ static int wled_configure(struct wled *wled)
                break;
 
        case 4:
-               u32_opts = wled4_opts;
-               size = ARRAY_SIZE(wled4_opts);
+               if (of_device_is_compatible(dev->of_node, "qcom,pmi8994-wled")) {
+                       u32_opts = pmi8994_wled_opts;
+                       size = ARRAY_SIZE(pmi8994_wled_opts);
+               } else {
+                       u32_opts = wled4_opts;
+                       size = ARRAY_SIZE(wled4_opts);
+               }
                *cfg = wled4_config_defaults;
                wled->wled_set_brightness = wled4_set_brightness;
                wled->wled_sync_toggle = wled3_sync_toggle;