| Message ID | 20221223233200.26089-9-quic_wcheng@quicinc.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Introduce QC USB SND audio offloading support | expand |
On 24/12/2022 12:13, Dmitry Baryshkov wrote: >> @@ -1468,6 +1469,9 @@ static void dwc3_get_properties(struct dwc3 *dwc) >> */ >> tx_fifo_resize_max_num = 6; >> >> + /* default to a single XHCI interrupter */ >> + num_hc_interrupters = 1; >> + >> dwc->maximum_speed = usb_get_maximum_speed(dev); >> dwc->max_ssp_rate = usb_get_maximum_ssp_rate(dev); >> dwc->dr_mode = usb_get_dr_mode(dev); >> @@ -1511,6 +1515,12 @@ static void dwc3_get_properties(struct dwc3 *dwc) >> &tx_thr_num_pkt_prd); >> device_property_read_u8(dev, "snps,tx-max-burst-prd", >> &tx_max_burst_prd); >> + device_property_read_u8(dev, "snps,num-hc-interrupters", >> + &num_hc_interrupters); > > bindings change? Undocumented bindings change :( Best regards, Krzysztof
Hi Dmitry, On 12/24/2022 3:13 AM, Dmitry Baryshkov wrote: > On Sat, 24 Dec 2022 at 01:33, Wesley Cheng <quic_wcheng@quicinc.com> wrote: >> >> Allow for the DWC3 host driver to pass along a XHCI property that defines >> how many interrupters to allocate. This is in relation for the number of >> event rings that can be potentially used by other processors within the >> system. >> >> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> >> --- >> drivers/usb/dwc3/core.c | 12 ++++++++++++ >> drivers/usb/dwc3/core.h | 2 ++ >> drivers/usb/dwc3/host.c | 5 ++++- >> 3 files changed, 18 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c >> index 476b63618511..67d6f0ae81d2 100644 >> --- a/drivers/usb/dwc3/core.c >> +++ b/drivers/usb/dwc3/core.c >> @@ -1446,6 +1446,7 @@ static void dwc3_get_properties(struct dwc3 *dwc) >> u8 tx_thr_num_pkt_prd = 0; >> u8 tx_max_burst_prd = 0; >> u8 tx_fifo_resize_max_num; >> + u8 num_hc_interrupters; >> const char *usb_psy_name; >> int ret; >> >> @@ -1468,6 +1469,9 @@ static void dwc3_get_properties(struct dwc3 *dwc) >> */ >> tx_fifo_resize_max_num = 6; >> >> + /* default to a single XHCI interrupter */ >> + num_hc_interrupters = 1; >> + >> dwc->maximum_speed = usb_get_maximum_speed(dev); >> dwc->max_ssp_rate = usb_get_maximum_ssp_rate(dev); >> dwc->dr_mode = usb_get_dr_mode(dev); >> @@ -1511,6 +1515,12 @@ static void dwc3_get_properties(struct dwc3 *dwc) >> &tx_thr_num_pkt_prd); >> device_property_read_u8(dev, "snps,tx-max-burst-prd", >> &tx_max_burst_prd); >> + device_property_read_u8(dev, "snps,num-hc-interrupters", >> + &num_hc_interrupters); > > bindings change? > Will add one. Thanks! Thanks Wesley Cheng
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 476b63618511..67d6f0ae81d2 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1446,6 +1446,7 @@ static void dwc3_get_properties(struct dwc3 *dwc) u8 tx_thr_num_pkt_prd = 0; u8 tx_max_burst_prd = 0; u8 tx_fifo_resize_max_num; + u8 num_hc_interrupters; const char *usb_psy_name; int ret; @@ -1468,6 +1469,9 @@ static void dwc3_get_properties(struct dwc3 *dwc) */ tx_fifo_resize_max_num = 6; + /* default to a single XHCI interrupter */ + num_hc_interrupters = 1; + dwc->maximum_speed = usb_get_maximum_speed(dev); dwc->max_ssp_rate = usb_get_maximum_ssp_rate(dev); dwc->dr_mode = usb_get_dr_mode(dev); @@ -1511,6 +1515,12 @@ static void dwc3_get_properties(struct dwc3 *dwc) &tx_thr_num_pkt_prd); device_property_read_u8(dev, "snps,tx-max-burst-prd", &tx_max_burst_prd); + device_property_read_u8(dev, "snps,num-hc-interrupters", + &num_hc_interrupters); + /* DWC3 core allowed to have a max of 8 interrupters */ + if (num_hc_interrupters > 8) + num_hc_interrupters = 8; + dwc->do_fifo_resize = device_property_read_bool(dev, "tx-fifo-resize"); if (dwc->do_fifo_resize) @@ -1589,6 +1599,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->imod_interval = 0; dwc->tx_fifo_resize_max_num = tx_fifo_resize_max_num; + + dwc->num_hc_interrupters = num_hc_interrupters; } /* check whether the core supports IMOD */ diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 8f9959ba9fd4..09037299da53 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1050,6 +1050,7 @@ struct dwc3_scratchpad_array { * @tx_max_burst_prd: max periodic ESS transmit burst size * @tx_fifo_resize_max_num: max number of fifos allocated during txfifo resize * @clear_stall_protocol: endpoint number that requires a delayed status phase + * @num_hc_interrupters: number of host controller interrupters * @hsphy_interface: "utmi" or "ulpi" * @connected: true when we're connected to a host, false otherwise * @softconnect: true when gadget connect is called, false when disconnect runs @@ -1275,6 +1276,7 @@ struct dwc3 { u8 tx_max_burst_prd; u8 tx_fifo_resize_max_num; u8 clear_stall_protocol; + u8 num_hc_interrupters; const char *hsphy_interface; diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index f6f13e7f1ba1..52a284fdd704 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -66,7 +66,7 @@ static int dwc3_host_get_irq(struct dwc3 *dwc) int dwc3_host_init(struct dwc3 *dwc) { - struct property_entry props[4]; + struct property_entry props[5]; struct platform_device *xhci; int ret, irq; int prop_idx = 0; @@ -112,6 +112,9 @@ int dwc3_host_init(struct dwc3 *dwc) if (DWC3_VER_IS_WITHIN(DWC3, ANY, 300A)) props[prop_idx++] = PROPERTY_ENTRY_BOOL("quirk-broken-port-ped"); + props[prop_idx++] = PROPERTY_ENTRY_U8("num-hc-interrupters", + dwc->num_hc_interrupters); + if (prop_idx) { ret = device_create_managed_software_node(&xhci->dev, props, NULL); if (ret) {
Allow for the DWC3 host driver to pass along a XHCI property that defines how many interrupters to allocate. This is in relation for the number of event rings that can be potentially used by other processors within the system. Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> --- drivers/usb/dwc3/core.c | 12 ++++++++++++ drivers/usb/dwc3/core.h | 2 ++ drivers/usb/dwc3/host.c | 5 ++++- 3 files changed, 18 insertions(+), 1 deletion(-)