Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Marcel Ziswiler <marcel@ziswiler.com>
To:     alsa-devel@alsa-project.org, linux-tegra@vger.kernel.org
Cc:     Stefan Agner <stefan@agner.ch>,
        Marcel Ziswiler <marcel.ziswiler@toradex.com>,
        Jaroslav Kysela <perex@perex.cz>,
        Thierry Reding <thierry.reding@gmail.com>,
        Jonathan Hunter <jonathanh@nvidia.com>,
        Mark Brown <broonie@kernel.org>, linux-kernel@vger.kernel.org,
        Takashi Iwai <tiwai@suse.com>,
        Liam Girdwood <lgirdwood@gmail.com>
Subject: [PATCH v2] ASoC: tegra: probe deferral error reporting
Date:   Tue, 14 Aug 2018 16:01:44 +0200
Message-Id: <20180814140145.12212-1-marcel@ziswiler.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Marcel Ziswiler <marcel.ziswiler@toradex.com>

Actually report the error codes from of_get_named_gpio() resp.
devm_gpio_request_one() upon trying to get the codec reset resp. sync
GPIOs unless it is just a probe deferral.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>

---

Changes in v2:
- Silence probe deferral as suggested by Stefan.
- Fix line over 80 characters as reported by checkpatch.

 sound/soc/tegra/tegra20_ac97.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c
index 682ef33afb5f..2ac6b2d73980 100644
--- a/sound/soc/tegra/tegra20_ac97.c
+++ b/sound/soc/tegra/tegra20_ac97.c
@@ -351,18 +351,31 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev)
 		ret = devm_gpio_request_one(&pdev->dev, ac97->reset_gpio,
 					    GPIOF_OUT_INIT_HIGH, "codec-reset");
 		if (ret) {
-			dev_err(&pdev->dev, "could not get codec-reset GPIO\n");
+			if (ret != -EPROBE_DEFER)
+				dev_err(&pdev->dev,
+					"could not get codec-reset GPIO: %d\n",
+					ret);
+
 			goto err_clk_put;
 		}
 	} else {
-		dev_err(&pdev->dev, "no codec-reset GPIO supplied\n");
+		ret = ac97->reset_gpio;
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev,
+				"no codec-reset GPIO supplied: %d\n",
+				ret);
+
 		goto err_clk_put;
 	}
 
 	ac97->sync_gpio = of_get_named_gpio(pdev->dev.of_node,
 					    "nvidia,codec-sync-gpio", 0);
 	if (!gpio_is_valid(ac97->sync_gpio)) {
-		dev_err(&pdev->dev, "no codec-sync GPIO supplied\n");
+		ret = ac97->sync_gpio;
+		if (ret != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "no codec-sync GPIO supplied: %d\n",
+				ret);
+
 		goto err_clk_put;
 	}
 
-- 
2.14.4