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authorAndrey Smirnov <andrew.smirnov@gmail.com>2019-04-14 17:46:31 -0700
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2019-05-01 11:35:47 +0100
commit76d6dc26331dfe3c275b16ac28f8b92f9614cd7e (patch)
tree7d7730e09c83d7d844e6773a81fe13df411cf547 /drivers/pci
parent37d5d32ae091c7acff23a080e3c179977fb943cd (diff)
downloadlinux-76d6dc26331dfe3c275b16ac28f8b92f9614cd7e.tar.bz2
PCI: imx6: Use flags to indicate support for suspend
Now that driver data has flags variable that can be used to indicate quirks/features supported we can switch the code to use it instead of having a special function that does so based on variant alone. No functional change intended. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: linux-kernel@vger.kernel.org Cc: linux-pci@vger.kernel.org
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/controller/dwc/pci-imx6.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 30e764b6cbcc..3e45f49b8a4f 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -52,6 +52,7 @@ enum imx6_pcie_variants {
#define IMX6_PCIE_FLAG_IMX6_PHY BIT(0)
#define IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE BIT(1)
+#define IMX6_PCIE_FLAG_SUPPORTS_SUSPEND BIT(2)
struct imx6_pcie_drvdata {
enum imx6_pcie_variants variant;
@@ -965,17 +966,11 @@ static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie)
}
}
-static inline bool imx6_pcie_supports_suspend(struct imx6_pcie *imx6_pcie)
-{
- return (imx6_pcie->drvdata->variant == IMX7D ||
- imx6_pcie->drvdata->variant == IMX6SX);
-}
-
static int imx6_pcie_suspend_noirq(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
- if (!imx6_pcie_supports_suspend(imx6_pcie))
+ if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_SUPPORTS_SUSPEND))
return 0;
imx6_pcie_pm_turnoff(imx6_pcie);
@@ -991,7 +986,7 @@ static int imx6_pcie_resume_noirq(struct device *dev)
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
struct pcie_port *pp = &imx6_pcie->pci->pp;
- if (!imx6_pcie_supports_suspend(imx6_pcie))
+ if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_SUPPORTS_SUSPEND))
return 0;
imx6_pcie_assert_core_reset(imx6_pcie);
@@ -1221,7 +1216,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
[IMX6SX] = {
.variant = IMX6SX,
.flags = IMX6_PCIE_FLAG_IMX6_PHY |
- IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE,
+ IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE |
+ IMX6_PCIE_FLAG_SUPPORTS_SUSPEND,
},
[IMX6QP] = {
.variant = IMX6QP,
@@ -1230,6 +1226,7 @@ static const struct imx6_pcie_drvdata drvdata[] = {
},
[IMX7D] = {
.variant = IMX7D,
+ .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND,
},
[IMX8MQ] = {
.variant = IMX8MQ,