Merge tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "These are the updates for MMC and MEMSTICK for v5.5.

  Note that this also contains quite some additional changes reaching
  beyond both the MMC and MEMSTICK subsystems. This is primarily because
  of fixing an old regression for a WiFi driver based on the SDIO
  interface on an OMAP openpandora board

  MMC core:
   - Add CMD13 polling for MMC IOCTLS with R1B response.
   - Add common DT properties for clk-phase-delays for various speed
     modes.
   - Fix size overflow for mmc gp-partitions.
   - Re-work HW reset for SDIO cards, which also includes a re-work for
     Marvell's WiFi mwifiex SDIO func driver.

  MMC host:
   - jz4740: Add support for X1000 and JZ4760.
   - jz4740: Add support for 8-bit bus and for low power mode.
   - mmci: Add support for HW busy timeout for the stm32_sdmmc variant.
   - owl-mmc: Add driver for Actions Semi Owl SoCs SD/MMC controller.
   - renesas_sdhi: Add support for r8a774b1.
   - sdhci_am654: Add support for Command Queuing Engine for J721E.
   - sdhci-milbeaut: Add driver for the Milbeaut SD controller.
   - sdhci-of-arasan: Add support for ZynqMP tap-delays.
   - sdhci-of-arasan: Add support for clk-phase-delays for SD cards.
   - sdhci-of-arasan: Add support for Intel LGM SDXC.
   - sdhci-of-aspeed: Allow inversion of the internal card detect
     signal.
   - sdhci-of-esdhc: Fixup workaround for erratum A-008171 for tunings.
   - sdhci-of-at91: Improve support for calibration.
   - sdhci-pci: Add support for Intel JSL.
   - sdhci-pci: Add quirk for AMD SDHC Device 0x7906.
   - tmio: Enable support for erase/discard/trim requests.

  MMC/OMAP/pandora/wl1251:

  The TI wl1251 WiFi driver for SDIO on the OMAP openpandora board has
  been broken since v4.7. To fix the problems, changes have been made
  cross subsystems, but also to OMAP2 machine code and to openpandora
  DTS files, as summarized below. Relevant changes have been tagged for
  stable.

   - mmc/wl1251: Re-introduce lost SDIO quirks and vendor-id for wl1251
   - omap/omap_hsmmc: Remove redundant platform config for openpandora
   - omap_hsmmc: Initialize non-std SDIO card for wl1251 for pandora
   - omap/dts/pandora: Specify wl1251 through a child node of mmc3
   - wl1251: Add devicetree support for TI wl1251 SDIO"

* tag 'mmc-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (73 commits)
  dt-bindings: mmc: Correct the type of the clk phase properties
  Revert "mmc: tmio: remove workaround for NON_REMOVABLE"
  memstick: Fix Kconfig indentation
  mmc: sdhci-of-arasan: Add support for ZynqMP Platform Tap Delays Setup
  dt-bindings: mmc: arasan: Document 'xlnx,zynqmp-8.9a' controller
  firmware: xilinx: Add SDIO Tap Delay nodes
  mmc: sdhci-of-arasan: Add support to set clock phase delays for SD
  dt-bindings: mmc: Add optional generic properties for mmc
  mmc: sdhci-of-arasan: Add sampling clock for a phy to use
  dt-bindings: mmc: arasan: Update Documentation for the input clock
  mmc: sdhci-of-arasan: Separate out clk related data to another structure
  mmc: sdhci: Fix grammar in warning message
  mmc: sdhci-of-aspeed: add inversion signal presence
  mmc: sdhci-of-aspeed: enable CONFIG_MMC_SDHCI_IO_ACCESSORS
  mmc: sdhci_am654: Add Support for Command Queuing Engine to J721E
  mmc: core: Fix size overflow for mmc partitions
  mmc: tmio: Add MMC_CAP_ERASE to allow erase/discard/trim requests
  net: wireless: ti: remove local VENDOR_ID and DEVICE_ID definitions
  net: wireless: ti: wl1251 use new SDIO_VENDOR_ID_TI_WL1251 definition
  mmc: core: fix wl1251 sdio quirks
  ...

3 files changed, 27 insertions, 12 deletions

diff --git a/drivers/net/wireless/marvell/mwifiex/main.c b/drivers/net/wireless/marvell/mwifiex/main.c
index a9657ae6d782..d14e55e3c9da 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.c
+++ b/drivers/net/wireless/marvell/mwifiex/main.c
@@ -631,6 +631,7 @@ static int _mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 
 	mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
 	mwifiex_dbg(adapter, MSG, "driver_version = %s\n", fmt);
+	adapter->is_up = true;
 	goto done;
 
 err_add_intf:
@@ -1469,6 +1470,7 @@ int mwifiex_shutdown_sw(struct mwifiex_adapter *adapter)
 	mwifiex_deauthenticate(priv, NULL);
 
 	mwifiex_uninit_sw(adapter);
+	adapter->is_up = false;
 
 	if (adapter->if_ops.down_dev)
 		adapter->if_ops.down_dev(adapter);
@@ -1730,7 +1732,8 @@ int mwifiex_remove_card(struct mwifiex_adapter *adapter)
 	if (!adapter)
 		return 0;
 
-	mwifiex_uninit_sw(adapter);
+	if (adapter->is_up)
+		mwifiex_uninit_sw(adapter);
 
 	if (adapter->irq_wakeup >= 0)
 		device_init_wakeup(adapter->dev, false);
diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
index 095837fba300..547ff3c578ee 100644
--- a/drivers/net/wireless/marvell/mwifiex/main.h
+++ b/drivers/net/wireless/marvell/mwifiex/main.h
@@ -1017,6 +1017,7 @@ struct mwifiex_adapter {
 
 	/* For synchronizing FW initialization with device lifecycle. */
 	struct completion *fw_done;
+	bool is_up;
 
 	bool ext_scan;
 	u8 fw_api_ver;
diff --git a/drivers/net/wireless/marvell/mwifiex/sdio.c b/drivers/net/wireless/marvell/mwifiex/sdio.c
index 24c041dad9f6..fec38b6e86ff 100644
--- a/drivers/net/wireless/marvell/mwifiex/sdio.c
+++ b/drivers/net/wireless/marvell/mwifiex/sdio.c
@@ -444,6 +444,9 @@ static int mwifiex_sdio_suspend(struct device *dev)
 		return 0;
 	}
 
+	if (!adapter->is_up)
+		return -EBUSY;
+
 	mwifiex_enable_wake(adapter);
 
 	/* Enable the Host Sleep */
@@ -2220,22 +2223,30 @@ static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter)
 	struct sdio_func *func = card->func;
 	int ret;
 
+	/* Prepare the adapter for the reset. */
 	mwifiex_shutdown_sw(adapter);
+	clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags);
+	clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags);
 
-	/* power cycle the adapter */
+	/* Run a HW reset of the SDIO interface. */
 	sdio_claim_host(func);
-	mmc_hw_reset(func->card->host);
+	ret = mmc_hw_reset(func->card->host);
 	sdio_release_host(func);
 
-	/* Previous save_adapter won't be valid after this. We will cancel
-	 * pending work requests.
-	 */
-	clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags);
-	clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags);
-
-	ret = mwifiex_reinit_sw(adapter);
-	if (ret)
-		dev_err(&func->dev, "reinit failed: %d\n", ret);
+	switch (ret) {
+	case 1:
+		dev_dbg(&func->dev, "SDIO HW reset asynchronous\n");
+		complete_all(adapter->fw_done);
+		break;
+	case 0:
+		ret = mwifiex_reinit_sw(adapter);
+		if (ret)
+			dev_err(&func->dev, "reinit failed: %d\n", ret);
+		break;
+	default:
+		dev_err(&func->dev, "SDIO HW reset failed: %d\n", ret);
+		break;
+	}
 }
 
 /* This function read/write firmware */