From f29f972a6e7e3f187ea4d89b98a76c1981ca4d53 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Barnab=C3=A1s=20Cz=C3=A9m=C3=A1n?= Date: Fri, 16 Jan 2026 08:07:34 +0100 Subject: [PATCH] backlight: qcom-wled: Support ovp values for PMI8994 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit WLED4 found in PMI8994 supports different ovp values. Fixes: 6fc632d3e3e0 ("video: backlight: qcom-wled: Add PMI8994 compatible") Signed-off-by: Barnabás Czémán Reviewed-by: Konrad Dybcio Reviewed-by: Daniel Thompson (RISCstar) Link: https://patch.msgid.link/20260116-pmi8950-wled-v3-2-e6c93de84079@mainlining.org Signed-off-by: Lee Jones --- drivers/video/backlight/qcom-wled.c | 41 +++++++++++++++++++++++++++-- 1 file changed, 39 insertions(+), 2 deletions(-) diff --git a/drivers/video/backlight/qcom-wled.c b/drivers/video/backlight/qcom-wled.c index a63bb42c8f8b..5decbd39b789 100644 --- 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; -- 2.47.3