diff options
| author | Sebastian Reichel <sre@kernel.org> | 2023-07-14 03:37:44 +0200 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-08-01 10:29:55 +0200 |
| commit | bc2aa99b2306bc9d91586bc9187bfef4e61d3882 (patch) | |
| tree | be0d85d7c873cf9affd5ce708d8d5223be7f7146 | |
| parent | drm/panel: sitronix-st7789v: simplify st7789v_spi_write (diff) | |
| download | linux-bc2aa99b2306bc9d91586bc9187bfef4e61d3882.tar.xz linux-bc2aa99b2306bc9d91586bc9187bfef4e61d3882.zip | |
drm/panel: sitronix-st7789v: improve error handling
Improve error handling in the probe routine, so that probe
defer errors are captured in /sys/kernel/debug/devices_deferred
Reviewed-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230714013756.1546769-8-sre@kernel.org
| -rw-r--r-- | drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c index 6290bd49d055..a6d6155ef45c 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c @@ -348,32 +348,33 @@ static const struct drm_panel_funcs st7789v_drm_funcs = { static int st7789v_probe(struct spi_device *spi) { + struct device *dev = &spi->dev; struct st7789v *ctx; int ret; - ctx = devm_kzalloc(&spi->dev, sizeof(*ctx), GFP_KERNEL); + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; spi_set_drvdata(spi, ctx); ctx->spi = spi; - drm_panel_init(&ctx->panel, &spi->dev, &st7789v_drm_funcs, + drm_panel_init(&ctx->panel, dev, &st7789v_drm_funcs, DRM_MODE_CONNECTOR_DPI); - ctx->power = devm_regulator_get(&spi->dev, "power"); - if (IS_ERR(ctx->power)) - return PTR_ERR(ctx->power); + ctx->power = devm_regulator_get(dev, "power"); + ret = PTR_ERR_OR_ZERO(ctx->power); + if (ret) + return dev_err_probe(dev, ret, "Failed to get regulator\n"); - ctx->reset = devm_gpiod_get_optional(&spi->dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(ctx->reset)) { - dev_err(&spi->dev, "Couldn't get our reset line\n"); - return PTR_ERR(ctx->reset); - } + ctx->reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); + ret = PTR_ERR_OR_ZERO(ctx->reset); + if (ret) + return dev_err_probe(dev, ret, "Failed to get reset line\n"); ret = drm_panel_of_backlight(&ctx->panel); if (ret) - return ret; + return dev_err_probe(dev, ret, "Failed to get backlight\n"); drm_panel_add(&ctx->panel); |