Re: [PATCH 2/2] SPI: ralink: add Ralink SoC spi driver

On 09/08/13 19:51, John Crispin wrote:

+#ifdef DEBUG
+#define spi_debug(args...) printk(args)
+#else
+#define spi_debug(args...)
+#endif

This looks a bit like pr_debug. If you have a device pointer around,
there's also a dev_dbg which takes an additional device pointer and
prepends it's name to the message.

+static int rt2880_spi_probe(struct platform_device *pdev)
+{

<snip>

+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "unable to get SYS clock, err=%d\n",
+			status);
+		return PTR_ERR(clk);
+	}

<snip>

+}
+
+static int rt2880_spi_remove(struct platform_device *pdev)
+{
+	struct spi_master *master;
+	struct rt2880_spi *rs;
+
+	master = dev_get_drvdata(&pdev->dev);
+	rs = spi_master_get_devdata(master);
+
+	clk_disable(rs->clk);
+	clk_put(rs->clk);

The devm_clk_get in your probe function means you don't need clk_put here.

Cheers
James