Merge tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver patch pull request for 5.1-rc1.

  The largest thing by far is the new habanalabs driver for their AI
  accelerator chip. For now it is in the drivers/misc directory but will
  probably move to a new directory soon along with other drivers of this
  type.

  Other than that, just the usual set of individual driver updates and
  fixes. There's an "odd" merge in here from the DRM tree that they
  asked me to do as the MEI driver is starting to interact with the i915
  driver, and it needed some coordination. All of those patches have
  been properly acked by the relevant subsystem maintainers.

  All of these have been in linux-next with no reported issues, most for
  quite some time"

* tag 'char-misc-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (219 commits)
  habanalabs: adjust Kconfig to fix build errors
  habanalabs: use %px instead of %p in error print
  habanalabs: use do_div for 64-bit divisions
  intel_th: gth: Fix an off-by-one in output unassigning
  habanalabs: fix little-endian<->cpu conversion warnings
  habanalabs: use NULL to initialize array of pointers
  habanalabs: fix little-endian<->cpu conversion warnings
  habanalabs: soft-reset device if context-switch fails
  habanalabs: print pointer using %p
  habanalabs: fix memory leak with CBs with unaligned size
  habanalabs: return correct error code on MMU mapping failure
  habanalabs: add comments in uapi/misc/habanalabs.h
  habanalabs: extend QMAN0 job timeout
  habanalabs: set DMA0 completion to SOB 1007
  habanalabs: fix validation of WREG32 to DMA completion
  habanalabs: fix mmu cache registers init
  habanalabs: disable CPU access on timeouts
  habanalabs: add MMU DRAM default page mapping
  habanalabs: Dissociate RAZWI info from event types
  misc/habanalabs: adjust Kconfig to fix build errors
  ...

1 files changed, 31 insertions, 9 deletions

diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index da445223f4cc..0d320e0ab4c9 100644
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -703,7 +703,10 @@ EXPORT_SYMBOL_GPL(rtsx_pci_card_pull_ctl_disable);
 
 static void rtsx_pci_enable_bus_int(struct rtsx_pcr *pcr)
 {
-	pcr->bier = TRANS_OK_INT_EN | TRANS_FAIL_INT_EN | SD_INT_EN;
+	struct rtsx_hw_param *hw_param = &pcr->hw_param;
+
+	pcr->bier = TRANS_OK_INT_EN | TRANS_FAIL_INT_EN | SD_INT_EN
+		| hw_param->interrupt_en;
 
 	if (pcr->num_slots > 1)
 		pcr->bier |= MS_INT_EN;
@@ -969,8 +972,19 @@ static void rtsx_pci_card_detect(struct work_struct *work)
 
 static void rtsx_pci_process_ocp(struct rtsx_pcr *pcr)
 {
-	if (pcr->ops->process_ocp)
+	if (pcr->ops->process_ocp) {
 		pcr->ops->process_ocp(pcr);
+	} else {
+		if (!pcr->option.ocp_en)
+			return;
+		rtsx_pci_get_ocpstat(pcr, &pcr->ocp_stat);
+		if (pcr->ocp_stat & (SD_OC_NOW | SD_OC_EVER)) {
+			rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);
+			rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
+			rtsx_pci_clear_ocpstat(pcr);
+			pcr->ocp_stat = 0;
+		}
+	}
 }
 
 static int rtsx_pci_process_ocp_interrupt(struct rtsx_pcr *pcr)
@@ -1039,7 +1053,7 @@ static irqreturn_t rtsx_pci_isr(int irq, void *dev_id)
 		}
 	}
 
-	if (pcr->card_inserted || pcr->card_removed)
+	if ((pcr->card_inserted || pcr->card_removed) && !(int_reg & SD_OC_INT))
 		schedule_delayed_work(&pcr->carddet_work,
 				msecs_to_jiffies(200));
 
@@ -1144,10 +1158,12 @@ void rtsx_pci_enable_ocp(struct rtsx_pcr *pcr)
 {
 	u8 val = SD_OCP_INT_EN | SD_DETECT_EN;
 
-	if (pcr->ops->enable_ocp)
+	if (pcr->ops->enable_ocp) {
 		pcr->ops->enable_ocp(pcr);
-	else
+	} else {
+		rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN, 0);
 		rtsx_pci_write_register(pcr, REG_OCPCTL, 0xFF, val);
+	}
 
 }
 
@@ -1155,10 +1171,13 @@ void rtsx_pci_disable_ocp(struct rtsx_pcr *pcr)
 {
 	u8 mask = SD_OCP_INT_EN | SD_DETECT_EN;
 
-	if (pcr->ops->disable_ocp)
+	if (pcr->ops->disable_ocp) {
 		pcr->ops->disable_ocp(pcr);
-	else
+	} else {
 		rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
+		rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN,
+				OC_POWER_DOWN);
+	}
 }
 
 void rtsx_pci_init_ocp(struct rtsx_pcr *pcr)
@@ -1169,7 +1188,7 @@ void rtsx_pci_init_ocp(struct rtsx_pcr *pcr)
 		struct rtsx_cr_option *option = &(pcr->option);
 
 		if (option->ocp_en) {
-			u8 val = option->sd_400mA_ocp_thd;
+			u8 val = option->sd_800mA_ocp_thd;
 
 			rtsx_pci_write_register(pcr, FPDCTL, OC_POWER_DOWN, 0);
 			rtsx_pci_write_register(pcr, REG_OCPPARA1,
@@ -1204,6 +1223,7 @@ void rtsx_pci_clear_ocpstat(struct rtsx_pcr *pcr)
 		u8 val = SD_OCP_INT_CLR | SD_OC_CLR;
 
 		rtsx_pci_write_register(pcr, REG_OCPCTL, mask, val);
+		udelay(100);
 		rtsx_pci_write_register(pcr, REG_OCPCTL, mask, 0);
 	}
 }
@@ -1213,7 +1233,6 @@ int rtsx_sd_power_off_card3v3(struct rtsx_pcr *pcr)
 	rtsx_pci_write_register(pcr, CARD_CLK_EN, SD_CLK_EN |
 		MS_CLK_EN | SD40_CLK_EN, 0);
 	rtsx_pci_write_register(pcr, CARD_OE, SD_OUTPUT_EN, 0);
-
 	rtsx_pci_card_power_off(pcr, RTSX_SD_CARD);
 
 	msleep(50);
@@ -1313,6 +1332,9 @@ static int rtsx_pci_init_hw(struct rtsx_pcr *pcr)
 		break;
 	}
 
+	/*init ocp*/
+	rtsx_pci_init_ocp(pcr);
+
 	/* Enable clk_request_n to enable clock power management */
 	rtsx_pci_write_config_byte(pcr, pcr->pcie_cap + PCI_EXP_LNKCTL + 1, 1);
 	/* Enter L1 when host tx idle */