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usb: dwc2: Add core parameter for service interval support 

Added core parameter for service interval based scheduling.

Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
hifive-unleashed-5.1
Grigor Tovmasyan 2018-08-29 20:59:34 +04:00 committed by Felipe Balbi
parent c464da0bff
commit ca531bc2bf
4 changed files with 18 additions and 0 deletions
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9
drivers/usb/dwc2/core.h
View File

@ -416,6 +416,9 @@ enum dwc2_ep0_state {
* back to DWC2_SPEED_PARAM_HIGH while device is gone.
* 0 - No (default)
* 1 - Yes
* @service_interval: Enable service interval based scheduling.
* 0 - No
* 1 - Yes
*
* The following parameters may be specified when starting the module. These
* parameters define how the DWC_otg controller should be configured. A
@ -461,6 +464,7 @@ struct dwc2_core_params {
bool lpm_clock_gating;
bool besl;
bool hird_threshold_en;
bool service_interval;
u8 hird_threshold;
bool activate_stm_fs_transceiver;
bool ipg_isoc_en;
@ -605,6 +609,10 @@ struct dwc2_core_params {
* FIFO sizing is enabled 16 to 32768
* Actual maximum value is autodetected and also
* the default.
* @service_interval_mode: For enabling service interval based scheduling in the
* controller.
* 0 - Disable
* 1 - Enable
*/
struct dwc2_hw_params {
unsigned op_mode:3;
@ -635,6 +643,7 @@ struct dwc2_hw_params {
unsigned utmi_phy_data_width:2;
unsigned lpm_mode:1;
unsigned ipg_isoc_en:1;
unsigned service_interval_mode:1;
u32 snpsid;
u32 dev_ep_dirs;
u32 g_tx_fifo_size[MAX_EPS_CHANNELS];

1
drivers/usb/dwc2/debugfs.c
View File

@ -701,6 +701,7 @@ static int params_show(struct seq_file *seq, void *v)
print_param(seq, p, besl);
print_param(seq, p, hird_threshold_en);
print_param(seq, p, hird_threshold);
print_param(seq, p, service_interval);
print_param(seq, p, host_dma);
print_param(seq, p, g_dma);
print_param(seq, p, g_dma_desc);

4
drivers/usb/dwc2/gadget.c
View File

@ -3323,6 +3323,10 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg,
dwc2_set_bit(hsotg, DIEPMSK, DIEPMSK_BNAININTRMSK);
}
/* Enable Service Interval mode if supported */
if (using_desc_dma(hsotg) && hsotg->params.service_interval)
dwc2_set_bit(hsotg, DCTL, DCTL_SERVICE_INTERVAL_SUPPORTED);
dwc2_writel(hsotg, 0, DAINTMSK);
dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n",

4
drivers/usb/dwc2/params.c
View File

@ -299,6 +299,7 @@ static void dwc2_set_default_params(struct dwc2_hsotg *hsotg)
p->hird_threshold_en = true;
p->hird_threshold = 4;
p->ipg_isoc_en = false;
p->service_interval = false;
p->max_packet_count = hw->max_packet_count;
p->max_transfer_size = hw->max_transfer_size;
p->ahbcfg = GAHBCFG_HBSTLEN_INCR << GAHBCFG_HBSTLEN_SHIFT;
@ -592,6 +593,7 @@ static void dwc2_check_params(struct dwc2_hsotg *hsotg)
CHECK_BOOL(besl, (hsotg->hw_params.snpsid >= DWC2_CORE_REV_3_00a));
CHECK_BOOL(hird_threshold_en, hsotg->params.lpm);
CHECK_RANGE(hird_threshold, 0, hsotg->params.besl ? 12 : 7, 0);
CHECK_BOOL(service_interval, hw->service_interval_mode);
CHECK_RANGE(max_packet_count,
15, hw->max_packet_count,
hw->max_packet_count);
@ -780,6 +782,8 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
GHWCFG4_UTMI_PHY_DATA_WIDTH_SHIFT;
hw->acg_enable = !!(hwcfg4 & GHWCFG4_ACG_SUPPORTED);
hw->ipg_isoc_en = !!(hwcfg4 & GHWCFG4_IPG_ISOC_SUPPORTED);
hw->service_interval_mode = !!(hwcfg4 &
GHWCFG4_SERVICE_INTERVAL_SUPPORTED);
/* fifo sizes */
hw->rx_fifo_size = (grxfsiz & GRXFSIZ_DEPTH_MASK) >>