aboutsummaryrefslogtreecommitdiff
path: root/drivers/usb/cdns3/drd.c
diff options
context:
space:
mode:
authorSteven Rostedt <[email protected]>2024-08-14 16:56:42 -0400
committerSteven Rostedt (Google) <[email protected]>2024-08-14 16:59:28 -0400
commitee057c8c194b9283f4137b253b70e292693a39f0 (patch)
tree4ee9868bfc432e0b1230016cd316468719f0b477 /drivers/usb/cdns3/drd.c
parentb96c312551b241bc17226c5347c6d6b38a1efd3e (diff)
parent7c626ce4bae1ac14f60076d00eafe71af30450ba (diff)
Merge tag 'v6.11-rc3' into trace/ring-buffer/core
The "reserve_mem" kernel command line parameter has been pulled into v6.11. Merge the latest -rc3 to allow the persistent ring buffer memory to be able to be mapped at the address specified by the "reserve_mem" command line parameter. Signed-off-by: Steven Rostedt (Google) <[email protected]>
Diffstat (limited to 'drivers/usb/cdns3/drd.c')
-rw-r--r--drivers/usb/cdns3/drd.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/usb/cdns3/drd.c b/drivers/usb/cdns3/drd.c
index 8b936a2e93a0..84fb38a5723a 100644
--- a/drivers/usb/cdns3/drd.c
+++ b/drivers/usb/cdns3/drd.c
@@ -389,7 +389,7 @@ static irqreturn_t cdns_drd_irq(int irq, void *data)
int cdns_drd_init(struct cdns *cdns)
{
void __iomem *regs;
- u32 state;
+ u32 state, reg;
int ret;
regs = devm_ioremap_resource(cdns->dev, &cdns->otg_res);
@@ -433,6 +433,14 @@ int cdns_drd_init(struct cdns *cdns)
cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *)
&cdns->otg_v1_regs->ien;
writel(1, &cdns->otg_v1_regs->simulate);
+
+ if (cdns->pdata &&
+ (cdns->pdata->quirks & CDNS3_DRD_SUSPEND_RESIDENCY_ENABLE)) {
+ reg = readl(&cdns->otg_v1_regs->susp_ctrl);
+ reg |= SUSP_CTRL_SUSPEND_RESIDENCY_ENABLE;
+ writel(reg, &cdns->otg_v1_regs->susp_ctrl);
+ }
+
cdns->version = CDNS3_CONTROLLER_V1;
} else {
dev_err(cdns->dev, "not supported DID=0x%08x\n", state);