diff options
| author | Dmitry Osipenko <digetx@gmail.com> | 2020-03-12 18:04:32 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2020-03-13 18:03:06 +0100 |
| commit | e32c8c2a5fbe1514e4ae9063a49e76ecf486ffb8 (patch) | |
| tree | 690b8b5d2f061172a9ab296e5127b44c6d4bb115 /drivers/gpu/drm/tegra | |
| parent | 8f839fb6b39e74e60f772f60909be526f5835237 (diff) | |
| download | linux-e32c8c2a5fbe1514e4ae9063a49e76ecf486ffb8.tar.gz | |
drm/tegra: hdmi: Silence deferred-probe error
Driver fails to probe with -EPROBE_DEFER, which produces a bit noisy error message in KMSG during kernel's boot up. This happens because voltage regulators tend to be probed later than the DRM driver. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra')
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 34 |
1 files changed, 25 insertions, 9 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index 6f117628f257..38252c0f068d 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -1648,6 +1648,7 @@ static irqreturn_t tegra_hdmi_irq(int irq, void *data) static int tegra_hdmi_probe(struct platform_device *pdev) { + const char *level = KERN_ERR; struct tegra_hdmi *hdmi; struct resource *regs; int err; @@ -1686,21 +1687,36 @@ static int tegra_hdmi_probe(struct platform_device *pdev) } hdmi->hdmi = devm_regulator_get(&pdev->dev, "hdmi"); - if (IS_ERR(hdmi->hdmi)) { - dev_err(&pdev->dev, "failed to get HDMI regulator\n"); - return PTR_ERR(hdmi->hdmi); + err = PTR_ERR_OR_ZERO(hdmi->hdmi); + if (err) { + if (err == -EPROBE_DEFER) + level = KERN_DEBUG; + + dev_printk(level, &pdev->dev, + "failed to get HDMI regulator: %d\n", err); + return err; } hdmi->pll = devm_regulator_get(&pdev->dev, "pll"); - if (IS_ERR(hdmi->pll)) { - dev_err(&pdev->dev, "failed to get PLL regulator\n"); - return PTR_ERR(hdmi->pll); + err = PTR_ERR_OR_ZERO(hdmi->pll); + if (err) { + if (err == -EPROBE_DEFER) + level = KERN_DEBUG; + + dev_printk(level, &pdev->dev, + "failed to get PLL regulator: %d\n", err); + return err; } hdmi->vdd = devm_regulator_get(&pdev->dev, "vdd"); - if (IS_ERR(hdmi->vdd)) { - dev_err(&pdev->dev, "failed to get VDD regulator\n"); - return PTR_ERR(hdmi->vdd); + err = PTR_ERR_OR_ZERO(hdmi->vdd); + if (err) { + if (err == -EPROBE_DEFER) + level = KERN_DEBUG; + + dev_printk(level, &pdev->dev, + "failed to get VDD regulator: %d\n", err); + return err; } hdmi->output.dev = &pdev->dev; |