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Subject[PATCH v4 3/6] usb: gadget: udc: atmel: simplify endpoint allocation
Date
From: Cristian Birsan <cristian.birsan@microchip.com>

Simplify the endpoint allocation and cleanup the code.

Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
---
drivers/usb/gadget/udc/atmel_usba_udc.c | 21 ++++++++-------------
drivers/usb/gadget/udc/atmel_usba_udc.h | 1 -
2 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 4281242b5f9a..10fa72ec8b79 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -1091,8 +1091,6 @@ static struct usb_ep *atmel_usba_match_ep(struct usb_gadget *gadget,
USBA_BF(EPT_SIZE, fls(ep->fifo_size - 1) - 3);

ep->ept_cfg |= USBA_BF(BK_NUMBER, ep->nr_banks);
-
- ep->udc->configured_ep++;
}

return _ep;
@@ -1786,7 +1784,7 @@ static irqreturn_t usba_udc_irq(int irq, void *devid)

if (status & USBA_END_OF_RESET) {
struct usba_ep *ep0, *ep;
- int i, n;
+ int i;

usba_writel(udc, INT_CLR,
USBA_END_OF_RESET|USBA_END_OF_RESUME
@@ -1834,13 +1832,14 @@ static irqreturn_t usba_udc_irq(int irq, void *devid)
"ODD: EP0 configuration is invalid!\n");

/* Preallocate other endpoints */
- n = fifo_mode ? udc->num_ep : udc->configured_ep;
- for (i = 1; i < n; i++) {
+ for (i = 1; i < udc->num_ep; i++) {
ep = &udc->usba_ep[i];
- usba_ep_writel(ep, CFG, ep->ept_cfg);
- if (!(usba_ep_readl(ep, CFG) & USBA_EPT_MAPPED))
- dev_err(&udc->pdev->dev,
- "ODD: EP%d configuration is invalid!\n", i);
+ if (ep->ep.claimed) {
+ usba_ep_writel(ep, CFG, ep->ept_cfg);
+ if (!(usba_ep_readl(ep, CFG) & USBA_EPT_MAPPED))
+ dev_err(&udc->pdev->dev,
+ "ODD: EP%d configuration is invalid!\n", i);
+ }
}
}

@@ -2025,9 +2024,6 @@ static int atmel_usba_stop(struct usb_gadget *gadget)
if (udc->vbus_pin)
disable_irq(gpiod_to_irq(udc->vbus_pin));

- if (fifo_mode == 0)
- udc->configured_ep = 1;
-
udc->suspended = false;
usba_stop(udc);

@@ -2154,7 +2150,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,

if (fifo_mode == 0) {
udc->num_ep = udc_config->num_ep;
- udc->configured_ep = 1;
} else {
udc->num_ep = usba_config_fifo_table(udc);
}
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h
index 48e332439ed5..a9bf655eb513 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.h
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.h
@@ -336,7 +336,6 @@ struct usba_udc {
int irq;
struct gpio_desc *vbus_pin;
int num_ep;
- int configured_ep;
struct usba_fifo_cfg *fifo_cfg;
struct clk *pclk;
struct clk *hclk;
--
2.25.1
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