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From: Michael Grzeschik <m.grzeschik@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Jules Maselbas <jmaselbas@kalray.eu>
Subject: [PATCH v2 2/2] usb: dwc2: fix multiplier handling in endpoint setup
Date: Tue, 24 Jan 2023 21:01:14 +0100	[thread overview]
Message-ID: <20230124200114.3160585-2-m.grzeschik@pengutronix.de> (raw)
In-Reply-To: <20230124200114.3160585-1-m.grzeschik@pengutronix.de>

If the multiplier is 0 in the descriptor bitfield the multiplier count
is one. For calculating the multiplier count the extra function
usb_endpoint_maxp_mult should be used. Rework the dwc2 driver to use it
and make multi packages work.

While at it, we also remove the USB_EP_MAXP_MULT and
USB_ENDPOINT_MAXP_MASK macros that would stay left unused and are
defined in include/usb/ch9.ch anyway.

Tested-by: Jules Maselbas <jmaselbas@kalray.eu>
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
---
v1 -> v2: - added tested-by

 drivers/usb/dwc2/gadget.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 7070485410..5a72ba795b 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -14,13 +14,6 @@
 #define spin_lock_irqsave(lock, flags) (void)(flags)
 #define spin_unlock_irqrestore(lock, flags) (void)(flags)
 
-#ifndef USB_ENDPOINT_MAXP_MASK
-#define USB_ENDPOINT_MAXP_MASK	0x07ff
-#endif
-#ifndef USB_EP_MAXP_MULT
-#define USB_EP_MAXP_MULT(m)	(((m) & 0x1800) >> 11)
-#endif
-
 static void kill_all_requests(struct dwc2 *, struct dwc2_ep *, int);
 
 static inline struct dwc2_ep *index_to_ep(struct dwc2 *dwc2,
@@ -484,7 +477,7 @@ static int dwc2_ep_enable(struct usb_ep *ep,
 
 	ep_type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
 	mps = usb_endpoint_maxp(desc) & USB_ENDPOINT_MAXP_MASK;
-	mc =  USB_EP_MAXP_MULT(usb_endpoint_maxp(desc));
+	mc = usb_endpoint_maxp_mult(desc);
 
 	/* note, we handle this here instead of dwc2_set_ep_maxpacket */
 	epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index);
-- 
2.30.2




  reply	other threads:[~2023-01-24 20:03 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-24 20:01 [PATCH v2 1/2] ARM: dts: stm32mp15x: adjust USB OTG gadget tx fifo sizes Michael Grzeschik
2023-01-24 20:01 ` Michael Grzeschik [this message]
2023-02-01 18:13   ` [PATCH v2 2/2] usb: dwc2: fix multiplier handling in endpoint setup Ahmad Fatoum
2023-02-02  7:21     ` Sascha Hauer
2023-01-31  8:42 ` [PATCH v2 1/2] ARM: dts: stm32mp15x: adjust USB OTG gadget tx fifo sizes Sascha Hauer
2023-02-01 18:09 ` Ahmad Fatoum

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