So the parameters can be used in both host and gadget modes.
Also consolidate param functions in the core.h
Acked-by: John Youn <johnyoun@xxxxxxxxxxxx>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx>
---
drivers/usb/dwc2/core.c | 19 +++++++++++++++++++
drivers/usb/dwc2/core.h | 13 ++++++++++---
drivers/usb/dwc2/hcd.c | 36 +-----------------------------------
drivers/usb/dwc2/hcd.h | 7 +------
drivers/usb/dwc2/platform.c | 17 ++++++++++++++++-
5 files changed, 47 insertions(+), 45 deletions(-)
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index 8c3bc84..6acbe90 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -3044,6 +3044,7 @@ void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
dwc2_set_param_uframe_sched(hsotg, params->uframe_sched);
dwc2_set_param_external_id_pin_ctl(hsotg, params->external_id_pin_ctl);
}
+EXPORT_SYMBOL_GPL(dwc2_set_parameters);
/**
* During device initialization, read various hardware configuration
@@ -3210,6 +3211,24 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
return 0;
}
+EXPORT_SYMBOL_GPL(dwc2_get_hwparams);
+
+/*
+ * Sets all parameters to the given value.
+ *
+ * Assumes that the dwc2_core_params struct contains only integers.
+ */
+void dwc2_set_all_params(struct dwc2_core_params *params, int value)
+{
+ int *p = (int *)params;
+ size_t size = sizeof(*params) / sizeof(*p);
+ int i;
+
+ for (i = 0; i < size; i++)
+ p[i] = value;
+}
+EXPORT_SYMBOL_GPL(dwc2_set_all_params);
+
u16 dwc2_get_otg_version(struct dwc2_hsotg *hsotg)
{
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index e46304d..d7fb1f7 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -1071,6 +1071,15 @@ extern void dwc2_set_param_ahbcfg(struct dwc2_hsotg *hsotg, int val);
extern void dwc2_set_param_otg_ver(struct dwc2_hsotg *hsotg, int val);
+extern void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
+ const struct dwc2_core_params *params);
+
+extern void dwc2_set_all_params(struct dwc2_core_params *params, int value);
+
+extern int dwc2_get_hwparams(struct dwc2_hsotg *hsotg);
+
+
+
/*
* Dump core registers and SPRAM
*/
@@ -1119,14 +1128,12 @@ extern int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg);
extern void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg);
extern void dwc2_hcd_start(struct dwc2_hsotg *hsotg);
#else
-static inline void dwc2_set_all_params(struct dwc2_core_params *params, int value) {}
static inline int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg)
{ return 0; }
static inline void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg) {}
static inline void dwc2_hcd_start(struct dwc2_hsotg *hsotg) {}
static inline void dwc2_hcd_remove(struct dwc2_hsotg *hsotg) {}
-static inline int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
- const struct dwc2_core_params *params)
+static inline int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
{ return 0; }
#endif
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index fbbbac2..8757f62 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -2748,8 +2748,6 @@ static void dwc2_hcd_free(struct dwc2_hsotg *hsotg)
destroy_workqueue(hsotg->wq_otg);
}
- kfree(hsotg->core_params);
- hsotg->core_params = NULL;
del_timer(&hsotg->wkp_timer);
}
@@ -2762,29 +2760,12 @@ static void dwc2_hcd_release(struct dwc2_hsotg *hsotg)
}
/*
- * Sets all parameters to the given value.
- *
- * Assumes that the dwc2_core_params struct contains only integers.
- */
-void dwc2_set_all_params(struct dwc2_core_params *params, int value)
-{
- int *p = (int *)params;
- size_t size = sizeof(*params) / sizeof(*p);
- int i;
-
- for (i = 0; i < size; i++)
- p[i] = value;
-}
-EXPORT_SYMBOL_GPL(dwc2_set_all_params);
-
-/*
* Initializes the HCD. This function allocates memory for and initializes the
* static parts of the usb_hcd and dwc2_hsotg structures. It also registers the
* USB bus with the core and calls the hc_driver->start() function. It returns
* a negative error on failure.
*/
-int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
- const struct dwc2_core_params *params)
+int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq)
{
struct usb_hcd *hcd;
struct dwc2_host_chan *channel;
@@ -2797,12 +2778,6 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
dev_dbg(hsotg->dev, "DWC OTG HCD INIT\n");
- /* Detect config values from hardware */
- retval = dwc2_get_hwparams(hsotg);
-
- if (retval)
- return retval;
-
retval = -ENOMEM;
hcfg = readl(hsotg->regs + HCFG);
@@ -2821,15 +2796,6 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
hsotg->last_frame_num = HFNUM_MAX_FRNUM;
#endif
- hsotg->core_params = kzalloc(sizeof(*hsotg->core_params), GFP_KERNEL);
- if (!hsotg->core_params)
- goto error1;
-
- dwc2_set_all_params(hsotg->core_params, -1);
-
- /* Validate parameter values */
- dwc2_set_parameters(hsotg, params);
-
/* Check if the bus driver or platform code has setup a dma_mask */
if (hsotg->core_params->dma_enable > 0 &&
hsotg->dev->dma_mask == NULL) {
diff --git a/drivers/usb/dwc2/hcd.h b/drivers/usb/dwc2/hcd.h
index e69a843..7b5841c 100644
--- a/drivers/usb/dwc2/hcd.h
+++ b/drivers/usb/dwc2/hcd.h
@@ -451,13 +451,8 @@ static inline u8 dwc2_hcd_is_pipe_out(struct dwc2_hcd_pipe_info *pipe)
return !dwc2_hcd_is_pipe_in(pipe);
}
-extern int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
- const struct dwc2_core_params *params);
+extern int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq);
extern void dwc2_hcd_remove(struct dwc2_hsotg *hsotg);
-extern void dwc2_set_parameters(struct dwc2_hsotg *hsotg,
- const struct dwc2_core_params *params);
-extern void dwc2_set_all_params(struct dwc2_core_params *params, int value);
-extern int dwc2_get_hwparams(struct dwc2_hsotg *hsotg);
/* Transaction Execution Functions */
extern enum dwc2_transaction_type dwc2_hcd_select_transactions(
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index ce39e8a0..2562c90 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -241,6 +241,21 @@ static int dwc2_driver_probe(struct platform_device *dev)
spin_lock_init(&hsotg->lock);
mutex_init(&hsotg->init_mutex);
+ /* Detect config values from hardware */
+ retval = dwc2_get_hwparams(hsotg);
+ if (retval)
+ return retval;
+
+ hsotg->core_params = devm_kzalloc(&dev->dev,
+ sizeof(*hsotg->core_params), GFP_KERNEL);
+ if (!hsotg->core_params)
+ return -ENOMEM;
+
+ dwc2_set_all_params(hsotg->core_params, -1);
+
+ /* Validate parameter values */
+ dwc2_set_parameters(hsotg, params);
+
if (hsotg->dr_mode != USB_DR_MODE_HOST) {
retval = dwc2_gadget_init(hsotg, irq);
if (retval)
@@ -249,7 +264,7 @@ static int dwc2_driver_probe(struct platform_device *dev)
}
if (hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
- retval = dwc2_hcd_init(hsotg, irq, params);
+ retval = dwc2_hcd_init(hsotg, irq);
if (retval) {
if (hsotg->gadget_enabled)
s3c_hsotg_remove(hsotg);
--
2.3.3
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