ASoC: stm32: spdifrx: improve error management on probe deferral

Do not print an error trace when deferring probe for SPDIFRX driver.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Link: https://lore.kernel.org/r/20200203100814.22944-6-olivier.moysan@st.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/stm/stm32_spdifrx.c b/sound/soc/stm/stm32_spdifrx.c
index 9f80ddf34443530b77c916683518eac6a5e1e1d7..49766afdae6163a7969f7fbad4755c83d048354e 100644 (file)
--- a/sound/soc/stm/stm32_spdifrx.c
+++ b/sound/soc/stm/stm32_spdifrx.c
@@ -406,7 +406,9 @@ static int stm32_spdifrx_dma_ctrl_register(struct device *dev,
 
        spdifrx->ctrl_chan = dma_request_chan(dev, "rx-ctrl");
        if (IS_ERR(spdifrx->ctrl_chan)) {
-               dev_err(dev, "dma_request_slave_channel failed\n");
+               if (PTR_ERR(spdifrx->ctrl_chan) != -EPROBE_DEFER)
+                       dev_err(dev, "dma_request_slave_channel error %ld\n",
+                               PTR_ERR(spdifrx->ctrl_chan));
                return PTR_ERR(spdifrx->ctrl_chan);
        }
 
@@ -929,7 +931,9 @@ static int stm32_spdifrx_parse_of(struct platform_device *pdev,
 
        spdifrx->kclk = devm_clk_get(&pdev->dev, "kclk");
        if (IS_ERR(spdifrx->kclk)) {
-               dev_err(&pdev->dev, "Could not get kclk\n");
+               if (PTR_ERR(spdifrx->kclk) != -EPROBE_DEFER)
+                       dev_err(&pdev->dev, "Could not get kclk: %ld\n",
+                               PTR_ERR(spdifrx->kclk));
                return PTR_ERR(spdifrx->kclk);
        }
 
@@ -967,7 +971,9 @@ static int stm32_spdifrx_probe(struct platform_device *pdev)
                                                    spdifrx->base,
                                                    spdifrx->regmap_conf);
        if (IS_ERR(spdifrx->regmap)) {
-               dev_err(&pdev->dev, "Regmap init failed\n");
+               if (PTR_ERR(spdifrx->regmap) != -EPROBE_DEFER)
+                       dev_err(&pdev->dev, "Regmap init error %ld\n",
+                               PTR_ERR(spdifrx->regmap));
                return PTR_ERR(spdifrx->regmap);
        }
 
@@ -1003,7 +1009,8 @@ static int stm32_spdifrx_probe(struct platform_device *pdev)
        pcm_config = &stm32_spdifrx_pcm_config;
        ret = devm_snd_dmaengine_pcm_register(&pdev->dev, pcm_config, 0);
        if (ret) {
-               dev_err(&pdev->dev, "PCM DMA register returned %d\n", ret);
+               if (ret != -EPROBE_DEFER)
+                       dev_err(&pdev->dev, "PCM DMA register error %d\n", ret);
                goto error;
        }