[PATCH] usb: host: ohci-platform: Disable ohci for rk3288

Jagan Teki jagan at amarulasolutions.com
Thu Jul 2 05:05:04 EDT 2020


rk3288 has usb host0 ohci controller but doesn't actually work 
on real hardware but it works with new revision chip rk3288w.

So, disable ohci for rk3288.

For rk3288w chips the compatible update code is handled by bootloader.

Cc: William Wu <william.wu at rock-chips.com>
Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
---
Note:
- U-Boot patch for compatible update
https://patchwork.ozlabs.org/project/uboot/patch/20200702084820.35942-1-jagan@amarulasolutions.com/

 drivers/usb/host/ohci-platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 7addfc2cbadc..24655ed6a7e0 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -96,7 +96,7 @@ static int ohci_platform_probe(struct platform_device *dev)
 	struct ohci_hcd *ohci;
 	int err, irq, clk = 0;
 
-	if (usb_disabled())
+	if (usb_disabled() || of_machine_is_compatible("rockchip,rk3288"))
 		return -ENODEV;
 
 	/*
-- 
2.25.1




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