All of lore.kernel.org
 help / color / mirror / Atom feed
From: <cristian.birsan@microchip.com>
To: <balbi@kernel.org>, <gregkh@linuxfoundation.org>,
	<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<ludovic.desroches@microchip.com>, <robh+dt@kernel.org>,
	<mark.rutland@arm.com>, <linux-arm-kernel@lists.infradead.org>,
	<linux-usb@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Cristian Birsan <cristian.birsan@microchip.com>
Subject: [PATCH v2 3/7] usb: gadget: udc: atmel: simplify endpoint allocation
Date: Fri, 15 May 2020 14:16:27 +0300	[thread overview]
Message-ID: <20200515111631.31210-4-cristian.birsan@microchip.com> (raw)
In-Reply-To: <20200515111631.31210-1-cristian.birsan@microchip.com>

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 2b154085dc6a..beb7246935a8 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -1097,7 +1097,6 @@ static struct usb_ep *atmel_usba_match_ep(struct usb_gadget *gadget,
 
 		ep->ept_cfg |= USBA_BF(BK_NUMBER, ep->nr_banks);
 
-		ep->udc->configured_ep++;
 	}
 
 	return _ep;
@@ -1790,7 +1789,7 @@ 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
@@ -1838,13 +1837,14 @@ 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);
+			}
 		}
 	}
 
@@ -2011,10 +2011,6 @@ 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);
 
 	udc->driver = NULL;
@@ -2095,7 +2091,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
 		pp = NULL;
 		while ((pp = of_get_next_child(np, pp)))
 			udc->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 a0225e4543d4..8de79356d31d 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.h
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.h
@@ -324,7 +324,6 @@ 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;
-- 
2.17.1


WARNING: multiple messages have this Message-ID (diff)
From: <cristian.birsan@microchip.com>
To: <balbi@kernel.org>, <gregkh@linuxfoundation.org>,
	<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
	<ludovic.desroches@microchip.com>, <robh+dt@kernel.org>,
	<mark.rutland@arm.com>, <linux-arm-kernel@lists.infradead.org>,
	<linux-usb@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Cristian Birsan <cristian.birsan@microchip.com>
Subject: [PATCH v2 3/7] usb: gadget: udc: atmel: simplify endpoint allocation
Date: Fri, 15 May 2020 14:16:27 +0300	[thread overview]
Message-ID: <20200515111631.31210-4-cristian.birsan@microchip.com> (raw)
In-Reply-To: <20200515111631.31210-1-cristian.birsan@microchip.com>

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 2b154085dc6a..beb7246935a8 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -1097,7 +1097,6 @@ static struct usb_ep *atmel_usba_match_ep(struct usb_gadget *gadget,
 
 		ep->ept_cfg |= USBA_BF(BK_NUMBER, ep->nr_banks);
 
-		ep->udc->configured_ep++;
 	}
 
 	return _ep;
@@ -1790,7 +1789,7 @@ 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
@@ -1838,13 +1837,14 @@ 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);
+			}
 		}
 	}
 
@@ -2011,10 +2011,6 @@ 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);
 
 	udc->driver = NULL;
@@ -2095,7 +2091,6 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev,
 		pp = NULL;
 		while ((pp = of_get_next_child(np, pp)))
 			udc->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 a0225e4543d4..8de79356d31d 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.h
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.h
@@ -324,7 +324,6 @@ 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;
-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2020-05-15 11:16 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 11:16 [PATCH v2 0/7] usb: gadget: udc: atmel: add usb device support for SAM9x60 SoC cristian.birsan
2020-05-15 11:16 ` cristian.birsan
2020-05-15 11:16 ` [PATCH v2 1/7] usb: gadget: udc: atmel: use of_find_matching_node_and_match cristian.birsan
2020-05-15 11:16   ` cristian.birsan
2020-05-15 15:47   ` Felipe Balbi
2020-05-15 15:47     ` Felipe Balbi
2020-05-15 11:16 ` [PATCH v2 2/7] dt-bindings: usb: atmel: Update DT bindings documentation for sam9x60 cristian.birsan
2020-05-15 11:16   ` cristian.birsan
2020-05-28 19:26   ` Rob Herring
2020-05-28 19:26     ` Rob Herring
2020-05-15 11:16 ` cristian.birsan [this message]
2020-05-15 11:16   ` [PATCH v2 3/7] usb: gadget: udc: atmel: simplify endpoint allocation cristian.birsan
2020-05-15 11:16 ` [PATCH v2 4/7] usb: gadget: udc: atmel: use 1 bank endpoints for control transfers cristian.birsan
2020-05-15 11:16   ` cristian.birsan
2020-05-15 11:16 ` [PATCH v2 5/7] usb: gadget: udc: atmel: rename errata into caps cristian.birsan
2020-05-15 11:16   ` cristian.birsan
2020-05-15 11:16 ` [PATCH v2 6/7] usb: gadget: udc: atmel: update endpoint allocation for sam9x60 cristian.birsan
2020-05-15 11:16   ` cristian.birsan
2020-05-15 11:16 ` [PATCH v2 7/7] ARM: dts: at91: sam9x60ek: enable usb device cristian.birsan
2020-05-15 11:16   ` cristian.birsan
2020-05-15 15:02 ` [PATCH v2 0/7] usb: gadget: udc: atmel: add usb device support for SAM9x60 SoC Alexandre Belloni
2020-05-15 15:02   ` Alexandre Belloni
2020-05-15 15:32   ` Cristian.Birsan
2020-05-15 15:32     ` Cristian.Birsan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200515111631.31210-4-cristian.birsan@microchip.com \
    --to=cristian.birsan@microchip.com \
    --cc=alexandre.belloni@bootlin.com \
    --cc=balbi@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=gregkh@linuxfoundation.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-usb@vger.kernel.org \
    --cc=ludovic.desroches@microchip.com \
    --cc=mark.rutland@arm.com \
    --cc=nicolas.ferre@microchip.com \
    --cc=robh+dt@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.