spi-pl022-starfive.c: prompt warning when frequency does not surpport

prompt warning when frequency does not surpport

Signed-off-by: ziv.xu <ziv.xu@starfive.com>

diff --git a/drivers/spi/spi-pl022-starfive.c b/drivers/spi/spi-pl022-starfive.c
index e7c96e5..bd10e02 100644 (file)
--- a/drivers/spi/spi-pl022-starfive.c
+++ b/drivers/spi/spi-pl022-starfive.c
@@ -1802,6 +1802,10 @@ static int calculate_effective_freq(struct pl022 *pl022, int freq, struct
        WARN(!best_freq, "pl022: Matching cpsdvsr and scr not found for %d Hz rate\n",
                        freq);
 
+       if (best_freq != freq)
+               dev_warn(&pl022->adev->dev,
+               "Requested frequency: %d Hz is unsupported,select by default %d Hz\n",
+                       freq, best_freq);
        clk_freq->cpsdvsr = (u8) (best_cpsdvsr & 0xFF);
        clk_freq->scr = (u8) (best_scr & 0xFF);
        dev_dbg(&pl022->adev->dev,
@@ -1841,6 +1845,7 @@ static const struct pl022_config_chip pl022_default_chip_info = {
  * controller hardware here, that is not done until the actual transfer
  * commence.
  */
+
 static int pl022_setup(struct spi_device *spi)
 {
        struct pl022_config_chip const *chip_info;
@@ -2537,6 +2542,7 @@ static int starfive_of_pl022_probe(struct platform_device *pdev)
        };
        struct amba_device *pcdev;
        struct device *dev = &pdev->dev;
+       struct pl022 *pl022;
 
        pcdev = devm_kzalloc(&pdev->dev, sizeof(*pcdev), GFP_KERNEL);
        if (!pcdev)
@@ -2562,7 +2568,7 @@ static int starfive_of_pl022_probe(struct platform_device *pdev)
 
        ret = pl022_probe(pcdev, &id);
 
-       struct pl022 *pl022 = amba_get_drvdata(pcdev);
+       pl022 = amba_get_drvdata(pcdev);
 
        pl022->master->dev.parent = &pdev->dev;
        platform_set_drvdata(pdev, pl022);