OpenE2K/linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

PCI: imx6: Use flags to indicate support for suspend

Browse Source 
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
This commit is contained in:
Andrey Smirnov 2019-04-14 17:46:31 -07:00 committed by Lorenzo Pieralisi
parent 37d5d32ae0
commit 76d6dc2633
1 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/pci/controller/dwc/pci-imx6.c
View File

@ -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,