diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2023-01-17 01:09:00 +0000 |
|---|---|---|
| committer | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2023-01-23 01:20:49 +0000 |
| commit | b004dd3194622f29e2b037cf45493fef7f9b2799 (patch) | |
| tree | 0721cc0e640c3324eb2c5476e41566ad5eb3d707 | |
| parent | cb3dbc1e0c218aae2f4867ee859c2af3b1adbe47 (diff) | |
drm/panel-sony-tulip-truly-nt35521: Make backlight GPIO optionallinux-next-23-01-23-msm8939-nocpr
The documentation for this driver says the backlight is controlled by the
DSC.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
| -rw-r--r-- | drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c index ee5d20ecc577..ece265c41170 100644 --- a/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c +++ b/drivers/gpu/drm/panel/panel-sony-tulip-truly-nt35521.c @@ -331,7 +331,8 @@ static int truly_nt35521_unprepare(struct drm_panel *panel) if (ret < 0) dev_err(dev, "Failed to un-initialize panel: %d\n", ret); - gpiod_set_value_cansleep(ctx->reset_gpio, 1); + if (ctx->blen_gpio) + gpiod_set_value_cansleep(ctx->reset_gpio, 1); regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies); @@ -346,7 +347,8 @@ static int truly_nt35521_enable(struct drm_panel *panel) if (ctx->enabled) return 0; - gpiod_set_value_cansleep(ctx->blen_gpio, 1); + if (ctx->blen_gpio) + gpiod_set_value_cansleep(ctx->blen_gpio, 1); ctx->enabled = true; return 0; @@ -475,7 +477,7 @@ static int truly_nt35521_probe(struct mipi_dsi_device *dsi) return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), "Failed to get reset-gpios\n"); - ctx->blen_gpio = devm_gpiod_get(dev, "backlight", GPIOD_OUT_LOW); + ctx->blen_gpio = devm_gpiod_get_optional(dev, "backlight", GPIOD_OUT_LOW); if (IS_ERR(ctx->blen_gpio)) return dev_err_probe(dev, PTR_ERR(ctx->blen_gpio), "Failed to get backlight-gpios\n"); |