diff options
| author | Cristian Birsan <cristian.birsan@microchip.com> | 2020-07-23 21:49:01 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2020-09-24 11:56:17 +0300 |
| commit | 26b324245018cc966c81097452017dea8f43ffc5 (patch) | |
| tree | 9fd0d67f92fec463732f2bc66e7dffe34f07a866 /drivers/usb/gadget/udc/atmel_usba_udc.c | |
| parent | 5b041a30448f6af2676de01685812b260bd95b31 (diff) | |
usb: gadget: udc: atmel: update endpoint allocation for sam9x60
The DPRAM memory from the USB High Speed Device Port (UDPHS) hardware
block was increased. This patch updates the endpoint allocation for sam9x60
to take advantage of this larger memory. At the same time the
constraint to allocate the endpoints in order was lifted. To handle old
and new hardware in the same driver the ep_prealloc was added.
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'drivers/usb/gadget/udc/atmel_usba_udc.c')
| -rw-r--r-- | drivers/usb/gadget/udc/atmel_usba_udc.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index d8b693b34b57..2b893bceea45 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -1061,12 +1061,14 @@ found_ep: case USB_ENDPOINT_XFER_ISOC: ep->fifo_size = 1024; - ep->nr_banks = 2; + if (ep->udc->ep_prealloc) + ep->nr_banks = 2; break; case USB_ENDPOINT_XFER_BULK: ep->fifo_size = 512; - ep->nr_banks = 1; + if (ep->udc->ep_prealloc) + ep->nr_banks = 1; break; case USB_ENDPOINT_XFER_INT: @@ -1076,7 +1078,8 @@ found_ep: else ep->fifo_size = roundup_pow_of_two(le16_to_cpu(desc->wMaxPacketSize)); - ep->nr_banks = 1; + if (ep->udc->ep_prealloc) + ep->nr_banks = 1; break; } @@ -2087,23 +2090,33 @@ static const struct usba_udc_config udc_at91sam9rl_cfg = { .errata = &at91sam9rl_errata, .config = ep_config_sam9, .num_ep = ARRAY_SIZE(ep_config_sam9), + .ep_prealloc = true, }; static const struct usba_udc_config udc_at91sam9g45_cfg = { .errata = &at91sam9g45_errata, .config = ep_config_sam9, .num_ep = ARRAY_SIZE(ep_config_sam9), + .ep_prealloc = true, }; static const struct usba_udc_config udc_sama5d3_cfg = { .config = ep_config_sama5, .num_ep = ARRAY_SIZE(ep_config_sama5), + .ep_prealloc = true, +}; + +static const struct usba_udc_config udc_sam9x60_cfg = { + .num_ep = ARRAY_SIZE(ep_config_sam9), + .config = ep_config_sam9, + .ep_prealloc = false, }; static const struct of_device_id atmel_udc_dt_ids[] = { { .compatible = "atmel,at91sam9rl-udc", .data = &udc_at91sam9rl_cfg }, { .compatible = "atmel,at91sam9g45-udc", .data = &udc_at91sam9g45_cfg }, { .compatible = "atmel,sama5d3-udc", .data = &udc_sama5d3_cfg }, + { .compatible = "microchip,sam9x60-udc", .data = &udc_sam9x60_cfg }, { /* sentinel */ } }; @@ -2131,6 +2144,7 @@ static struct usba_ep * atmel_udc_of_init(struct platform_device *pdev, return ERR_PTR(-EINVAL); udc_config = match->data; + udc->ep_prealloc = udc_config->ep_prealloc; udc->errata = udc_config->errata; if (udc->errata) { pp = of_find_matching_node_and_match(NULL, atmel_pmc_dt_ids, |