Loading drivers/usb/dwc3/dbm-1_5.c +26 −19 Original line number Diff line number Diff line Loading @@ -250,6 +250,21 @@ static int ep_config(u8 usb_ep, u8 bam_pipe, bool producer, bool disable_wb, return dbm_ep; } /** * Return number of configured DBM endpoints. */ static int get_num_of_eps_configured(void) { int i; int count = 0; for (i = 0; i < dbm_data->dbm_num_eps; i++) if (dbm_data->ep_num_mapping[i]) count++; return count; } /** * Configure a USB DBM ep to work in normal mode. * Loading Loading @@ -279,31 +294,23 @@ static int ep_unconfig(u8 usb_ep) /* Reset the dbm endpoint */ ep_soft_reset(dbm_ep, true); /* * 10 usec delay is required before deasserting DBM endpoint reset * according to hardware programming guide. * The necessary delay between asserting and deasserting the dbm ep * reset is based on the number of active endpoints. If there is more * than one endpoint, a 1 msec delay is required. Otherwise, a shorter * delay will suffice. * * As this function can be called in atomic context, sleeping variants * for delay are not possible - albeit a 1ms delay. */ if (get_num_of_eps_configured() > 1) udelay(1000); else udelay(10); ep_soft_reset(dbm_ep, false); return 0; } /** * Return number of configured DBM endpoints. * */ static int get_num_of_eps_configured(void) { int i; int count = 0; for (i = 0; i < dbm_data->dbm_num_eps; i++) if (dbm_data->ep_num_mapping[i]) count++; return count; } /** * Configure the DBM with the USB3 core event buffer. * This function is called by the SNPS UDC upon initialization. Loading drivers/usb/dwc3/dwc3-msm.c +8 −3 Original line number Diff line number Diff line Loading @@ -482,9 +482,14 @@ static int __dwc3_msm_dbm_ep_reset(struct dwc3_msm *mdwc, struct dwc3_ep *dep) } /* * 10 usec delay is required before deasserting DBM endpoint reset * according to hardware programming guide. * The necessary delay between asserting and deasserting the dbm ep * reset is based on the number of active endpoints. If there is more * than one endpoint, a 1 msec delay is required. Otherwise, a shorter * delay will suffice. */ if (dbm_get_num_of_eps_configured(mdwc->dbm) > 1) usleep_range(1000, 1200); else udelay(10); ret = dbm_ep_soft_reset(mdwc->dbm, dep->number, false); if (ret) { Loading Loading
drivers/usb/dwc3/dbm-1_5.c +26 −19 Original line number Diff line number Diff line Loading @@ -250,6 +250,21 @@ static int ep_config(u8 usb_ep, u8 bam_pipe, bool producer, bool disable_wb, return dbm_ep; } /** * Return number of configured DBM endpoints. */ static int get_num_of_eps_configured(void) { int i; int count = 0; for (i = 0; i < dbm_data->dbm_num_eps; i++) if (dbm_data->ep_num_mapping[i]) count++; return count; } /** * Configure a USB DBM ep to work in normal mode. * Loading Loading @@ -279,31 +294,23 @@ static int ep_unconfig(u8 usb_ep) /* Reset the dbm endpoint */ ep_soft_reset(dbm_ep, true); /* * 10 usec delay is required before deasserting DBM endpoint reset * according to hardware programming guide. * The necessary delay between asserting and deasserting the dbm ep * reset is based on the number of active endpoints. If there is more * than one endpoint, a 1 msec delay is required. Otherwise, a shorter * delay will suffice. * * As this function can be called in atomic context, sleeping variants * for delay are not possible - albeit a 1ms delay. */ if (get_num_of_eps_configured() > 1) udelay(1000); else udelay(10); ep_soft_reset(dbm_ep, false); return 0; } /** * Return number of configured DBM endpoints. * */ static int get_num_of_eps_configured(void) { int i; int count = 0; for (i = 0; i < dbm_data->dbm_num_eps; i++) if (dbm_data->ep_num_mapping[i]) count++; return count; } /** * Configure the DBM with the USB3 core event buffer. * This function is called by the SNPS UDC upon initialization. Loading
drivers/usb/dwc3/dwc3-msm.c +8 −3 Original line number Diff line number Diff line Loading @@ -482,9 +482,14 @@ static int __dwc3_msm_dbm_ep_reset(struct dwc3_msm *mdwc, struct dwc3_ep *dep) } /* * 10 usec delay is required before deasserting DBM endpoint reset * according to hardware programming guide. * The necessary delay between asserting and deasserting the dbm ep * reset is based on the number of active endpoints. If there is more * than one endpoint, a 1 msec delay is required. Otherwise, a shorter * delay will suffice. */ if (dbm_get_num_of_eps_configured(mdwc->dbm) > 1) usleep_range(1000, 1200); else udelay(10); ret = dbm_ep_soft_reset(mdwc->dbm, dep->number, false); if (ret) { Loading
