* usb: dwc3: Do core validation early on probe
@ 2019-04-25 21:19 ` Thinh Nguyen
0 siblings, 0 replies; 2+ messages in thread
From: Thinh Nguyen @ 2019-04-25 21:19 UTC (permalink / raw)
To: Felipe Balbi; +Cc: John Youn, Thinh Nguyen, linux-usb
The setting of the dr_mode may need to check the controller's revision.
The revision is set in the dwc3_core_is_valid(), which comes after
dr_mode setting. Let's move it closer to the start of the dwc3_probe()
function and before calling dwc3_get_dr_mode().
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
---
drivers/usb/dwc3/core.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index c6735f0c1424..4aff1d8dbc4f 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -896,12 +896,6 @@ static int dwc3_core_init(struct dwc3 *dwc)
u32 reg;
int ret;
- if (!dwc3_core_is_valid(dwc)) {
- dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
- ret = -ENODEV;
- goto err0;
- }
-
/*
* Write Linux Version Code to our GUID register so it's easy to figure
* out which kernel version a bug was found.
@@ -1429,6 +1423,11 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->regs = regs;
dwc->regs_size = resource_size(&dwc_res);
+ if (!dwc3_core_is_valid(dwc)) {
+ dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
+ return -ENODEV;
+ }
+
dwc3_get_properties(dwc);
dwc->reset = devm_reset_control_get_optional_shared(dev, NULL);
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] usb: dwc3: Do core validation early on probe
@ 2019-04-25 21:19 ` Thinh Nguyen
0 siblings, 0 replies; 2+ messages in thread
From: Thinh Nguyen @ 2019-04-25 21:19 UTC (permalink / raw)
To: Felipe Balbi; +Cc: John Youn, Thinh Nguyen, linux-usb
The setting of the dr_mode may need to check the controller's revision.
The revision is set in the dwc3_core_is_valid(), which comes after
dr_mode setting. Let's move it closer to the start of the dwc3_probe()
function and before calling dwc3_get_dr_mode().
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
---
drivers/usb/dwc3/core.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index c6735f0c1424..4aff1d8dbc4f 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -896,12 +896,6 @@ static int dwc3_core_init(struct dwc3 *dwc)
u32 reg;
int ret;
- if (!dwc3_core_is_valid(dwc)) {
- dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
- ret = -ENODEV;
- goto err0;
- }
-
/*
* Write Linux Version Code to our GUID register so it's easy to figure
* out which kernel version a bug was found.
@@ -1429,6 +1423,11 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->regs = regs;
dwc->regs_size = resource_size(&dwc_res);
+ if (!dwc3_core_is_valid(dwc)) {
+ dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
+ return -ENODEV;
+ }
+
dwc3_get_properties(dwc);
dwc->reset = devm_reset_control_get_optional_shared(dev, NULL);
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2019-04-25 21:19 UTC | newest]
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