usb: chipidea: add power_budget limit for ehci to platform data

Some implementations need this limitation to work correctly.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 10 insertions, 1 deletions

diff --git a/drivers/usb/chipidea/ci13xxx_pci.c b/drivers/usb/chipidea/ci13xxx_pci.c
index f190140cf612..e3dab27f5c75 100644
--- a/drivers/usb/chipidea/ci13xxx_pci.c
+++ b/drivers/usb/chipidea/ci13xxx_pci.c
@@ -33,6 +33,12 @@ struct ci13xxx_udc_driver langwell_pci_driver = {
         .capoffset      = 0,
 };
 
+struct ci13xxx_udc_driver penwell_pci_driver = {
+        .name           = UDC_DRIVER_NAME,
+        .capoffset      = 0,
+        .power_budget   = 200,
+};
+
 /**
  * ci13xxx_pci_probe: PCI probe
  * @pdev: USB device controller being probed
@@ -153,7 +159,7 @@ static DEFINE_PCI_DEVICE_TABLE(ci13xxx_pci_id_table) = {
         },
         {
                 PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0829),
-                .driver_data = (kernel_ulong_t)&langwell_pci_driver,
+                .driver_data = (kernel_ulong_t)&penwell_pci_driver,
         },
         { 0, 0, 0, 0, 0, 0, 0 /* end: all zeroes */ }
 };
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 8c8362c89a8c..0cffcfe5ce53 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -116,6 +116,8 @@ static int host_start(struct ci13xxx *ci)
         hcd->regs = ci->hw_bank.abs;
         hcd->has_tt = 1;
 
+        hcd->power_budget = ci->udc_driver->power_budget;
+
         ehci = hcd_to_ehci(hcd);
         ehci->caps = ci->hw_bank.cap;
         ehci->has_hostpc = ci->hw_bank.lpm;
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index 86273ce5f554..edb90d6cfd12 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -10,6 +10,7 @@ struct ci13xxx_udc_driver {
         const char      *name;
         /* offset of the capability registers */
         uintptr_t        capoffset;
+        unsigned         power_budget;
         unsigned long    flags;
 #define CI13XXX_REGS_SHARED             BIT(0)
 #define CI13XXX_REQUIRE_TRANSCEIVER     BIT(1)