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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-14 17:57:16 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-14 17:57:16 -0500
commite7cf773d431a63a2417902696fcc9e0ebdc83bbe (patch)
tree86dbdceb7d91226507a3af0d57e03b0ca664b22e /drivers/usb/phy/phy-msm-usb.c
parent7a02d089695a1217992434f03a78aa32bad85b5c (diff)
parent81e1dadfb5b2d47aa513ad60b1c9cf0ea17b6514 (diff)
Merge tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB updates from Greg KH: "Here's the big set of USB and PHY patches for 3.19-rc1. The normal churn in the USB gadget area is in here, as well as xhci and other individual USB driver updates. The PHY tree is also in here, as there were dependancies on the USB tree. All of these have been in linux-next" * tag 'usb-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (351 commits) arm: omap3: twl: remove usb phy init data usbip: fix error handling in stub_probe() usb: gadget: udc: missing curly braces USB: mos7720: delete some unneeded code wusb: replace memset by memzero_explicit usbip: remove unneeded structure usb: xhci: fix comment for PORT_DEV_REMOVE xhci: don't use the same variable for stopped and halted rings current TD xhci: clear extra bits from slot context when setting max exit latency xhci: cleanup finish_td function USB: adutux: NULL dereferences on disconnect usb: chipidea: fix platform_no_drv_owner.cocci warnings usb: chipidea: Fixed a few typos in comments Documentation: bindings: add doc for the USB2 ChipIdea USB driver usb: chipidea: add a usb2 driver for ci13xxx usb: chipidea: fix phy handling usb: chipidea: remove duplicate dev_set_drvdata for host_start usb: chipidea: parameter 'mode' isn't needed for hw_device_reset usb: chipidea: add controller reset API usb: chipidea: remove flag CI_HDRC_REQUIRE_TRANSCEIVER ...
Diffstat (limited to 'drivers/usb/phy/phy-msm-usb.c')
-rw-r--r--drivers/usb/phy/phy-msm-usb.c107
1 files changed, 52 insertions, 55 deletions
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 29be0e654ecc..000fd892455f 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -708,7 +708,7 @@ static void msm_otg_start_host(struct usb_phy *phy, int on)
708 708
709static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host) 709static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
710{ 710{
711 struct msm_otg *motg = container_of(otg->phy, struct msm_otg, phy); 711 struct msm_otg *motg = container_of(otg->usb_phy, struct msm_otg, phy);
712 struct usb_hcd *hcd; 712 struct usb_hcd *hcd;
713 713
714 /* 714 /*
@@ -716,16 +716,16 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
716 * only peripheral configuration. 716 * only peripheral configuration.
717 */ 717 */
718 if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL) { 718 if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL) {
719 dev_info(otg->phy->dev, "Host mode is not supported\n"); 719 dev_info(otg->usb_phy->dev, "Host mode is not supported\n");
720 return -ENODEV; 720 return -ENODEV;
721 } 721 }
722 722
723 if (!host) { 723 if (!host) {
724 if (otg->phy->state == OTG_STATE_A_HOST) { 724 if (otg->state == OTG_STATE_A_HOST) {
725 pm_runtime_get_sync(otg->phy->dev); 725 pm_runtime_get_sync(otg->usb_phy->dev);
726 msm_otg_start_host(otg->phy, 0); 726 msm_otg_start_host(otg->usb_phy, 0);
727 otg->host = NULL; 727 otg->host = NULL;
728 otg->phy->state = OTG_STATE_UNDEFINED; 728 otg->state = OTG_STATE_UNDEFINED;
729 schedule_work(&motg->sm_work); 729 schedule_work(&motg->sm_work);
730 } else { 730 } else {
731 otg->host = NULL; 731 otg->host = NULL;
@@ -738,14 +738,14 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
738 hcd->power_budget = motg->pdata->power_budget; 738 hcd->power_budget = motg->pdata->power_budget;
739 739
740 otg->host = host; 740 otg->host = host;
741 dev_dbg(otg->phy->dev, "host driver registered w/ tranceiver\n"); 741 dev_dbg(otg->usb_phy->dev, "host driver registered w/ tranceiver\n");
742 742
743 /* 743 /*
744 * Kick the state machine work, if peripheral is not supported 744 * Kick the state machine work, if peripheral is not supported
745 * or peripheral is already registered with us. 745 * or peripheral is already registered with us.
746 */ 746 */
747 if (motg->pdata->mode == USB_DR_MODE_HOST || otg->gadget) { 747 if (motg->pdata->mode == USB_DR_MODE_HOST || otg->gadget) {
748 pm_runtime_get_sync(otg->phy->dev); 748 pm_runtime_get_sync(otg->usb_phy->dev);
749 schedule_work(&motg->sm_work); 749 schedule_work(&motg->sm_work);
750 } 750 }
751 751
@@ -782,23 +782,23 @@ static void msm_otg_start_peripheral(struct usb_phy *phy, int on)
782static int msm_otg_set_peripheral(struct usb_otg *otg, 782static int msm_otg_set_peripheral(struct usb_otg *otg,
783 struct usb_gadget *gadget) 783 struct usb_gadget *gadget)
784{ 784{
785 struct msm_otg *motg = container_of(otg->phy, struct msm_otg, phy); 785 struct msm_otg *motg = container_of(otg->usb_phy, struct msm_otg, phy);
786 786
787 /* 787 /*
788 * Fail peripheral registration if this board can support 788 * Fail peripheral registration if this board can support
789 * only host configuration. 789 * only host configuration.
790 */ 790 */
791 if (motg->pdata->mode == USB_DR_MODE_HOST) { 791 if (motg->pdata->mode == USB_DR_MODE_HOST) {
792 dev_info(otg->phy->dev, "Peripheral mode is not supported\n"); 792 dev_info(otg->usb_phy->dev, "Peripheral mode is not supported\n");
793 return -ENODEV; 793 return -ENODEV;
794 } 794 }
795 795
796 if (!gadget) { 796 if (!gadget) {
797 if (otg->phy->state == OTG_STATE_B_PERIPHERAL) { 797 if (otg->state == OTG_STATE_B_PERIPHERAL) {
798 pm_runtime_get_sync(otg->phy->dev); 798 pm_runtime_get_sync(otg->usb_phy->dev);
799 msm_otg_start_peripheral(otg->phy, 0); 799 msm_otg_start_peripheral(otg->usb_phy, 0);
800 otg->gadget = NULL; 800 otg->gadget = NULL;
801 otg->phy->state = OTG_STATE_UNDEFINED; 801 otg->state = OTG_STATE_UNDEFINED;
802 schedule_work(&motg->sm_work); 802 schedule_work(&motg->sm_work);
803 } else { 803 } else {
804 otg->gadget = NULL; 804 otg->gadget = NULL;
@@ -807,14 +807,15 @@ static int msm_otg_set_peripheral(struct usb_otg *otg,
807 return 0; 807 return 0;
808 } 808 }
809 otg->gadget = gadget; 809 otg->gadget = gadget;
810 dev_dbg(otg->phy->dev, "peripheral driver registered w/ tranceiver\n"); 810 dev_dbg(otg->usb_phy->dev,
811 "peripheral driver registered w/ tranceiver\n");
811 812
812 /* 813 /*
813 * Kick the state machine work, if host is not supported 814 * Kick the state machine work, if host is not supported
814 * or host is already registered with us. 815 * or host is already registered with us.
815 */ 816 */
816 if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL || otg->host) { 817 if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL || otg->host) {
817 pm_runtime_get_sync(otg->phy->dev); 818 pm_runtime_get_sync(otg->usb_phy->dev);
818 schedule_work(&motg->sm_work); 819 schedule_work(&motg->sm_work);
819 } 820 }
820 821
@@ -1170,20 +1171,20 @@ static void msm_otg_sm_work(struct work_struct *w)
1170 struct msm_otg *motg = container_of(w, struct msm_otg, sm_work); 1171 struct msm_otg *motg = container_of(w, struct msm_otg, sm_work);
1171 struct usb_otg *otg = motg->phy.otg; 1172 struct usb_otg *otg = motg->phy.otg;
1172 1173
1173 switch (otg->phy->state) { 1174 switch (otg->state) {
1174 case OTG_STATE_UNDEFINED: 1175 case OTG_STATE_UNDEFINED:
1175 dev_dbg(otg->phy->dev, "OTG_STATE_UNDEFINED state\n"); 1176 dev_dbg(otg->usb_phy->dev, "OTG_STATE_UNDEFINED state\n");
1176 msm_otg_reset(otg->phy); 1177 msm_otg_reset(otg->usb_phy);
1177 msm_otg_init_sm(motg); 1178 msm_otg_init_sm(motg);
1178 otg->phy->state = OTG_STATE_B_IDLE; 1179 otg->state = OTG_STATE_B_IDLE;
1179 /* FALL THROUGH */ 1180 /* FALL THROUGH */
1180 case OTG_STATE_B_IDLE: 1181 case OTG_STATE_B_IDLE:
1181 dev_dbg(otg->phy->dev, "OTG_STATE_B_IDLE state\n"); 1182 dev_dbg(otg->usb_phy->dev, "OTG_STATE_B_IDLE state\n");
1182 if (!test_bit(ID, &motg->inputs) && otg->host) { 1183 if (!test_bit(ID, &motg->inputs) && otg->host) {
1183 /* disable BSV bit */ 1184 /* disable BSV bit */
1184 writel(readl(USB_OTGSC) & ~OTGSC_BSVIE, USB_OTGSC); 1185 writel(readl(USB_OTGSC) & ~OTGSC_BSVIE, USB_OTGSC);
1185 msm_otg_start_host(otg->phy, 1); 1186 msm_otg_start_host(otg->usb_phy, 1);
1186 otg->phy->state = OTG_STATE_A_HOST; 1187 otg->state = OTG_STATE_A_HOST;
1187 } else if (test_bit(B_SESS_VLD, &motg->inputs)) { 1188 } else if (test_bit(B_SESS_VLD, &motg->inputs)) {
1188 switch (motg->chg_state) { 1189 switch (motg->chg_state) {
1189 case USB_CHG_STATE_UNDEFINED: 1190 case USB_CHG_STATE_UNDEFINED:
@@ -1198,14 +1199,16 @@ static void msm_otg_sm_work(struct work_struct *w)
1198 case USB_CDP_CHARGER: 1199 case USB_CDP_CHARGER:
1199 msm_otg_notify_charger(motg, 1200 msm_otg_notify_charger(motg,
1200 IDEV_CHG_MAX); 1201 IDEV_CHG_MAX);
1201 msm_otg_start_peripheral(otg->phy, 1); 1202 msm_otg_start_peripheral(otg->usb_phy,
1202 otg->phy->state 1203 1);
1204 otg->state
1203 = OTG_STATE_B_PERIPHERAL; 1205 = OTG_STATE_B_PERIPHERAL;
1204 break; 1206 break;
1205 case USB_SDP_CHARGER: 1207 case USB_SDP_CHARGER:
1206 msm_otg_notify_charger(motg, IUNIT); 1208 msm_otg_notify_charger(motg, IUNIT);
1207 msm_otg_start_peripheral(otg->phy, 1); 1209 msm_otg_start_peripheral(otg->usb_phy,
1208 otg->phy->state 1210 1);
1211 otg->state
1209 = OTG_STATE_B_PERIPHERAL; 1212 = OTG_STATE_B_PERIPHERAL;
1210 break; 1213 break;
1211 default: 1214 default:
@@ -1222,36 +1225,36 @@ static void msm_otg_sm_work(struct work_struct *w)
1222 * is incremented in charger detection work. 1225 * is incremented in charger detection work.
1223 */ 1226 */
1224 if (cancel_delayed_work_sync(&motg->chg_work)) { 1227 if (cancel_delayed_work_sync(&motg->chg_work)) {
1225 pm_runtime_put_sync(otg->phy->dev); 1228 pm_runtime_put_sync(otg->usb_phy->dev);
1226 msm_otg_reset(otg->phy); 1229 msm_otg_reset(otg->usb_phy);
1227 } 1230 }
1228 msm_otg_notify_charger(motg, 0); 1231 msm_otg_notify_charger(motg, 0);
1229 motg->chg_state = USB_CHG_STATE_UNDEFINED; 1232 motg->chg_state = USB_CHG_STATE_UNDEFINED;
1230 motg->chg_type = USB_INVALID_CHARGER; 1233 motg->chg_type = USB_INVALID_CHARGER;
1231 } 1234 }
1232 1235
1233 if (otg->phy->state == OTG_STATE_B_IDLE) 1236 if (otg->state == OTG_STATE_B_IDLE)
1234 pm_runtime_put_sync(otg->phy->dev); 1237 pm_runtime_put_sync(otg->usb_phy->dev);
1235 break; 1238 break;
1236 case OTG_STATE_B_PERIPHERAL: 1239 case OTG_STATE_B_PERIPHERAL:
1237 dev_dbg(otg->phy->dev, "OTG_STATE_B_PERIPHERAL state\n"); 1240 dev_dbg(otg->usb_phy->dev, "OTG_STATE_B_PERIPHERAL state\n");
1238 if (!test_bit(B_SESS_VLD, &motg->inputs) || 1241 if (!test_bit(B_SESS_VLD, &motg->inputs) ||
1239 !test_bit(ID, &motg->inputs)) { 1242 !test_bit(ID, &motg->inputs)) {
1240 msm_otg_notify_charger(motg, 0); 1243 msm_otg_notify_charger(motg, 0);
1241 msm_otg_start_peripheral(otg->phy, 0); 1244 msm_otg_start_peripheral(otg->usb_phy, 0);
1242 motg->chg_state = USB_CHG_STATE_UNDEFINED; 1245 motg->chg_state = USB_CHG_STATE_UNDEFINED;
1243 motg->chg_type = USB_INVALID_CHARGER; 1246 motg->chg_type = USB_INVALID_CHARGER;
1244 otg->phy->state = OTG_STATE_B_IDLE; 1247 otg->state = OTG_STATE_B_IDLE;
1245 msm_otg_reset(otg->phy); 1248 msm_otg_reset(otg->usb_phy);
1246 schedule_work(w); 1249 schedule_work(w);
1247 } 1250 }
1248 break; 1251 break;
1249 case OTG_STATE_A_HOST: 1252 case OTG_STATE_A_HOST:
1250 dev_dbg(otg->phy->dev, "OTG_STATE_A_HOST state\n"); 1253 dev_dbg(otg->usb_phy->dev, "OTG_STATE_A_HOST state\n");
1251 if (test_bit(ID, &motg->inputs)) { 1254 if (test_bit(ID, &motg->inputs)) {
1252 msm_otg_start_host(otg->phy, 0); 1255 msm_otg_start_host(otg->usb_phy, 0);
1253 otg->phy->state = OTG_STATE_B_IDLE; 1256 otg->state = OTG_STATE_B_IDLE;
1254 msm_otg_reset(otg->phy); 1257 msm_otg_reset(otg->usb_phy);
1255 schedule_work(w); 1258 schedule_work(w);
1256 } 1259 }
1257 break; 1260 break;
@@ -1303,7 +1306,7 @@ static int msm_otg_mode_show(struct seq_file *s, void *unused)
1303 struct msm_otg *motg = s->private; 1306 struct msm_otg *motg = s->private;
1304 struct usb_otg *otg = motg->phy.otg; 1307 struct usb_otg *otg = motg->phy.otg;
1305 1308
1306 switch (otg->phy->state) { 1309 switch (otg->state) {
1307 case OTG_STATE_A_HOST: 1310 case OTG_STATE_A_HOST:
1308 seq_puts(s, "host\n"); 1311 seq_puts(s, "host\n");
1309 break; 1312 break;
@@ -1353,7 +1356,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
1353 1356
1354 switch (req_mode) { 1357 switch (req_mode) {
1355 case USB_DR_MODE_UNKNOWN: 1358 case USB_DR_MODE_UNKNOWN:
1356 switch (otg->phy->state) { 1359 switch (otg->state) {
1357 case OTG_STATE_A_HOST: 1360 case OTG_STATE_A_HOST:
1358 case OTG_STATE_B_PERIPHERAL: 1361 case OTG_STATE_B_PERIPHERAL:
1359 set_bit(ID, &motg->inputs); 1362 set_bit(ID, &motg->inputs);
@@ -1364,7 +1367,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
1364 } 1367 }
1365 break; 1368 break;
1366 case USB_DR_MODE_PERIPHERAL: 1369 case USB_DR_MODE_PERIPHERAL:
1367 switch (otg->phy->state) { 1370 switch (otg->state) {
1368 case OTG_STATE_B_IDLE: 1371 case OTG_STATE_B_IDLE:
1369 case OTG_STATE_A_HOST: 1372 case OTG_STATE_A_HOST:
1370 set_bit(ID, &motg->inputs); 1373 set_bit(ID, &motg->inputs);
@@ -1375,7 +1378,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
1375 } 1378 }
1376 break; 1379 break;
1377 case USB_DR_MODE_HOST: 1380 case USB_DR_MODE_HOST:
1378 switch (otg->phy->state) { 1381 switch (otg->state) {
1379 case OTG_STATE_B_IDLE: 1382 case OTG_STATE_B_IDLE:
1380 case OTG_STATE_B_PERIPHERAL: 1383 case OTG_STATE_B_PERIPHERAL:
1381 clear_bit(ID, &motg->inputs); 1384 clear_bit(ID, &motg->inputs);
@@ -1388,7 +1391,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
1388 goto out; 1391 goto out;
1389 } 1392 }
1390 1393
1391 pm_runtime_get_sync(otg->phy->dev); 1394 pm_runtime_get_sync(otg->usb_phy->dev);
1392 schedule_work(&motg->sm_work); 1395 schedule_work(&motg->sm_work);
1393out: 1396out:
1394 return status; 1397 return status;
@@ -1505,10 +1508,8 @@ static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
1505 } 1508 }
1506 1509
1507 pdata->phy_init_seq = devm_kzalloc(&pdev->dev, len, GFP_KERNEL); 1510 pdata->phy_init_seq = devm_kzalloc(&pdev->dev, len, GFP_KERNEL);
1508 if (!pdata->phy_init_seq) { 1511 if (!pdata->phy_init_seq)
1509 dev_warn(&pdev->dev, "No space for PHY init sequence\n");
1510 return 0; 1512 return 0;
1511 }
1512 1513
1513 ret = of_property_read_u32_array(node, "qcom,phy-init-sequence", 1514 ret = of_property_read_u32_array(node, "qcom,phy-init-sequence",
1514 pdata->phy_init_seq, words); 1515 pdata->phy_init_seq, words);
@@ -1530,10 +1531,8 @@ static int msm_otg_probe(struct platform_device *pdev)
1530 void __iomem *phy_select; 1531 void __iomem *phy_select;
1531 1532
1532 motg = devm_kzalloc(&pdev->dev, sizeof(struct msm_otg), GFP_KERNEL); 1533 motg = devm_kzalloc(&pdev->dev, sizeof(struct msm_otg), GFP_KERNEL);
1533 if (!motg) { 1534 if (!motg)
1534 dev_err(&pdev->dev, "unable to allocate msm_otg\n");
1535 return -ENOMEM; 1535 return -ENOMEM;
1536 }
1537 1536
1538 pdata = dev_get_platdata(&pdev->dev); 1537 pdata = dev_get_platdata(&pdev->dev);
1539 if (!pdata) { 1538 if (!pdata) {
@@ -1546,10 +1545,8 @@ static int msm_otg_probe(struct platform_device *pdev)
1546 1545
1547 motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg), 1546 motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
1548 GFP_KERNEL); 1547 GFP_KERNEL);
1549 if (!motg->phy.otg) { 1548 if (!motg->phy.otg)
1550 dev_err(&pdev->dev, "unable to allocate msm_otg\n");
1551 return -ENOMEM; 1549 return -ENOMEM;
1552 }
1553 1550
1554 phy = &motg->phy; 1551 phy = &motg->phy;
1555 phy->dev = &pdev->dev; 1552 phy->dev = &pdev->dev;
@@ -1674,7 +1671,7 @@ static int msm_otg_probe(struct platform_device *pdev)
1674 1671
1675 phy->io_ops = &msm_otg_io_ops; 1672 phy->io_ops = &msm_otg_io_ops;
1676 1673
1677 phy->otg->phy = &motg->phy; 1674 phy->otg->usb_phy = &motg->phy;
1678 phy->otg->set_host = msm_otg_set_host; 1675 phy->otg->set_host = msm_otg_set_host;
1679 phy->otg->set_peripheral = msm_otg_set_peripheral; 1676 phy->otg->set_peripheral = msm_otg_set_peripheral;
1680 1677
@@ -1775,7 +1772,7 @@ static int msm_otg_runtime_idle(struct device *dev)
1775 * This 1 sec delay also prevents entering into LPM immediately 1772 * This 1 sec delay also prevents entering into LPM immediately
1776 * after asynchronous interrupt. 1773 * after asynchronous interrupt.
1777 */ 1774 */
1778 if (otg->phy->state != OTG_STATE_UNDEFINED) 1775 if (otg->state != OTG_STATE_UNDEFINED)
1779 pm_schedule_suspend(dev, 1000); 1776 pm_schedule_suspend(dev, 1000);
1780 1777
1781 return -EAGAIN; 1778 return -EAGAIN;