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authorDragan Simic <dsimic@manjaro.org>2024-09-29 11:21:17 +0200
committerMark Brown <broonie@kernel.org>2024-10-08 18:41:07 +0100
commite2fc05873905f2ee96b38a116ae86f45fe7d8e49 (patch)
treede52f7d4f8aac3129c6d1a5fde52d28322851668
parent36e69b160705b65bf136c2fb6a1194447eeb8478 (diff)
spi: rockchip: Use dev_{err,warn}_probe() in the probe path
Use function dev_err_probe() in the probe path instead of dev_err() where appropriate, to make the code a bit more uniform and compact. Use the new function dev_warn_probe() to improve error handling for the TX and RX DMA channel requests, which are actually optional, and tweak the logged warnings a bit to additionally describe their optional nature. Previously, deferred requests for the TX and RX DMA channels produced no debug messages, and the final error messages didn't include the error codes, which are all highly useful when debugging permanently failed DMA channel requests, such as when the required drivers aren't enabled. Suggested-by: Hélene Vulquin <oss@helene.moe> Signed-off-by: Dragan Simic <dsimic@manjaro.org> Tested-by: Hélène Vulquin <oss@helene.moe> Link: https://patch.msgid.link/5b6bd142dab3ab93d7039db3e2fdcfea6bee2217.1727601608.git.dsimic@manjaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--drivers/spi/spi-rockchip.c28
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 81046f7b7591..5b1857b25d31 100644
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -773,15 +773,15 @@ static int rockchip_spi_probe(struct platform_device *pdev)
rs->apb_pclk = devm_clk_get_enabled(&pdev->dev, "apb_pclk");
if (IS_ERR(rs->apb_pclk)) {
- dev_err(&pdev->dev, "Failed to get apb_pclk\n");
- ret = PTR_ERR(rs->apb_pclk);
+ ret = dev_err_probe(&pdev->dev, PTR_ERR(rs->apb_pclk),
+ "Failed to get apb_pclk\n");
goto err_put_ctlr;
}
rs->spiclk = devm_clk_get_enabled(&pdev->dev, "spiclk");
if (IS_ERR(rs->spiclk)) {
- dev_err(&pdev->dev, "Failed to get spi_pclk\n");
- ret = PTR_ERR(rs->spiclk);
+ ret = dev_err_probe(&pdev->dev, PTR_ERR(rs->spiclk),
+ "Failed to get spi_pclk\n");
goto err_put_ctlr;
}
@@ -817,8 +817,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
rs->fifo_len = get_fifo_len(rs);
if (!rs->fifo_len) {
- dev_err(&pdev->dev, "Failed to get fifo length\n");
- ret = -EINVAL;
+ ret = dev_err_probe(&pdev->dev, -EINVAL, "Failed to get fifo length\n");
goto err_put_ctlr;
}
@@ -858,22 +857,21 @@ static int rockchip_spi_probe(struct platform_device *pdev)
ctlr->dma_tx = dma_request_chan(rs->dev, "tx");
if (IS_ERR(ctlr->dma_tx)) {
- /* Check tx to see if we need defer probing driver */
- if (PTR_ERR(ctlr->dma_tx) == -EPROBE_DEFER) {
- ret = -EPROBE_DEFER;
+ /* Check tx to see if we need to defer driver probing */
+ ret = dev_warn_probe(rs->dev, PTR_ERR(ctlr->dma_tx),
+ "Failed to request optional TX DMA channel\n");
+ if (ret == -EPROBE_DEFER)
goto err_disable_pm_runtime;
- }
- dev_warn(rs->dev, "Failed to request TX DMA channel\n");
ctlr->dma_tx = NULL;
}
ctlr->dma_rx = dma_request_chan(rs->dev, "rx");
if (IS_ERR(ctlr->dma_rx)) {
- if (PTR_ERR(ctlr->dma_rx) == -EPROBE_DEFER) {
- ret = -EPROBE_DEFER;
+ /* Check rx to see if we need to defer driver probing */
+ ret = dev_warn_probe(rs->dev, PTR_ERR(ctlr->dma_rx),
+ "Failed to request optional RX DMA channel\n");
+ if (ret == -EPROBE_DEFER)
goto err_free_dma_tx;
- }
- dev_warn(rs->dev, "Failed to request RX DMA channel\n");
ctlr->dma_rx = NULL;
}