Hello! On 01/17/2017 03:26 PM, Bartosz Golaszewski wrote:
In preparation for using two clocks in the driver (the sysclk2-based clock and the external REFCLK), check if we got a functional clock after calling ahci_platform_get_resources(). If not, retry calling get_clk() with con_id specified.
clk_get().
Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx> --- drivers/ata/ahci_da850.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/ata/ahci_da850.c b/drivers/ata/ahci_da850.c index 267a3d3..18f57c2 100644 --- a/drivers/ata/ahci_da850.c +++ b/drivers/ata/ahci_da850.c @@ -71,12 +71,28 @@ static int ahci_da850_probe(struct platform_device *pdev) struct ahci_host_priv *hpriv; struct resource *res; void __iomem *pwrdn_reg; + struct clk *clk; int rc; hpriv = ahci_platform_get_resources(pdev); if (IS_ERR(hpriv)) return PTR_ERR(hpriv); + /* + * Internally ahci_platform_get_resources() calls clk_get(dev, NULL) + * when trying to obtain the first clock. This SATA controller uses + * two clocks for which we specify two connector ids. If we don't
It's called connection ID, IIRC. [...] MBR, Sergei -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
