Re: [PATCH v2 2/4] hwrng: stm32 - implement support for STM32MP25x platforms

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 10/11/24 5:41 PM, Gatien Chevallier wrote:

[...]

@@ -551,6 +565,41 @@ static int stm32_rng_probe(struct platform_device *ofdev)
  	priv->rng.read = stm32_rng_read;
  	priv->rng.quality = 900;
+ if (!priv->data->nb_clock || priv->data->nb_clock > 2)
+		return -EINVAL;
+
+	priv->clk_bulk = devm_kzalloc(dev, priv->data->nb_clock * sizeof(*priv->clk_bulk),
+				      GFP_KERNEL);
+	if (!priv->clk_bulk)
+		return -ENOMEM;

Try this:

ret = devm_clk_bulk_get(dev, priv->data->nb_clock, priv->clk_bulk);
...
// Swap the clock if they are not in the right order:
if (priv->data->nb_clock == 2 &&
    strcmp(__clk_get_name(priv->clk_bulk[0].clk), "core"))
{
 const char *id = priv->clk_bulk[1].id;
 struct clk *clk = priv->clk_bulk[1].clk;
 priv->clk_bulk[1].id = priv->clk_bulk[0].id;
 priv->clk_bulk[1].clk = priv->clk_bulk[0].clk;
 priv->clk_bulk[0].id = id;
 priv->clk_bulk[0].clk = clk;
}

+	if (priv->data->nb_clock == 2) {
+		struct clk *clk;
+		struct clk *bus_clk;
+
+		clk = devm_clk_get(&ofdev->dev, "core");
+		if (IS_ERR(clk))
+			return PTR_ERR(clk);
+
+		bus_clk = devm_clk_get(&ofdev->dev, "bus");
+		if (IS_ERR(clk))
+			return PTR_ERR(bus_clk);
+
+		priv->clk_bulk[0].clk = clk;
+		priv->clk_bulk[0].id = "core";
+		priv->clk_bulk[1].clk = bus_clk;
+		priv->clk_bulk[1].id = "bus";
+	} else {
+		struct clk *clk;
+
+		clk = devm_clk_get(&ofdev->dev, NULL);
+		if (IS_ERR(clk))
+			return PTR_ERR(clk);
+
+		priv->clk_bulk[0].clk = clk;
+		priv->clk_bulk[0].id = "core";
+	}





[Index of Archives]     [Kernel]     [Gnu Classpath]     [Gnu Crypto]     [DM Crypt]     [Netfilter]     [Bugtraq]
  Powered by Linux