target/linux/samsung/patches-4.14/002-dm9000-clk.patch

   1 --- a/drivers/net/ethernet/davicom/dm9000.c
   2 +++ b/drivers/net/ethernet/davicom/dm9000.c
   3 @@ -39,6 +39,7 @@
   4  #include <linux/regulator/consumer.h>
   5  #include <linux/gpio.h>
   6  #include <linux/of_gpio.h>
   7 +#include <linux/clk.h>
   8
   9  #include <asm/delay.h>
  10  #include <asm/irq.h>
  11 @@ -1436,6 +1437,7 @@ dm9000_probe(struct platform_device *pde
  12         enum of_gpio_flags flags;
  13         struct regulator *power;
  14         bool inv_mac_addr = false;
  15 +    const char *clk_name;
  16
  17         power = devm_regulator_get(dev, "vcc");
  18         if (IS_ERR(power)) {
  19 @@ -1573,6 +1575,18 @@ dm9000_probe(struct platform_device *pde
  20                 goto out;
  21         }
  22
  23 +    /* Enable clock if specified */
  24 +    if (!of_property_read_string(dev->of_node, "clock-names", &clk_name)) {
  25 +        struct clk *clk = devm_clk_get(dev, clk_name);
  26 +        if (IS_ERR(clk)) {
  27 +            dev_err(dev, "cannot get clock of %s\n", clk_name);
  28 +            ret = PTR_ERR(clk);
  29 +            goto out;
  30 +        }
  31 +        clk_prepare_enable(clk);
  32 +        dev_info(dev, "enable clock '%s'\n", clk_name);
  33 +    }
  34 +
  35         /* fill in parameters for net-dev structure */
  36         ndev->base_addr = (unsigned long)db->io_addr;
  37