Merge tag 'mmc-v3.18-1' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Fix SDIO IRQ bug
   - MMC regulator improvements
   - Fix slot-gpio card detect bug
   - Add support for Driver Stage Register
   - Convert the common MMC OF parser to use GPIO descriptors
   - Convert MMC_CAP2_NO_MULTI_READ into a callback, ->multi_io_quirk()
   - Some additional minor fixes

  MMC host:
   - mmci: Support Qualcomm specific DML layer for DMA
   - dw_mmc: Use common MMC regulators
   - dw_mmc: Add support for Rock-chips RK3288
   - tmio: Enable runtime PM support
   - tmio: Add support for R-Car Gen2 SoCs
   - tmio: Several fixes and improvements
   - omap_hsmmc: Removed Balaji from MAINTAINERS
   - jz4740: add DMA and pre/post support
   - sdhci: Add support for Intel Braswell
   - sdhci: Several fixes and improvements"

* tag 'mmc-v3.18-1' of git://git.linaro.org/people/ulf.hansson/mmc: (119 commits)
  ARM: dts: fix MMC2 regulators for Exynos5420 Arndale Octa board
  mmc: sdhci-acpi: Fix Braswell eMMC timeout clock frequency
  mmc: sdhci-acpi: Pass HID and UID to probe_slot
  mmc: sdhci-acpi: Get UID directly from acpi_device
  mmc, sdhci, bcm-kona, LLVMLinux: Remove use of __initconst
  mmc: sdhci-pci: Fix Braswell eMMC timeout clock frequency
  mmc: sdhci: Let a driver override timeout clock frequency
  mmc: sdhci-pci: Add Bay Trail and Braswell SD card detect
  mmc: sdhci-pci: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel BYT host controllers
  mmc: sdhci-acpi: Add a HID and UID for a SD Card host controller
  mmc: sdhci-acpi: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel host controllers
  mmc: sdhci: Add quirk for always getting TC with stop cmd
  mmc: core: restore detect line inversion semantics
  mmc: Fix incorrect warning when setting 0 Hz via debugfs
  mmc: Fix use of wrong device in mmc_gpiod_free_cd()
  mmc: atmel-mci: fix mismatched section on atmci_cleanup_slot
  mmc: rtsx_pci: Set power related cap2 macros
  mmc: core: Add new power_mode MMC_POWER_UNDEFINED
  mmc: sdhci: execute tuning when device is not busy
  mmc: atmel-mci: Release mmc resources on failure in probe
  ..

1 files changed, 22 insertions, 19 deletions

diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 0c44510bf717..d90a6de7901d 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -127,6 +127,7 @@ static int mmc_decode_csd(struct mmc_card *card)
 		csd->read_partial = UNSTUFF_BITS(resp, 79, 1);
 		csd->write_misalign = UNSTUFF_BITS(resp, 78, 1);
 		csd->read_misalign = UNSTUFF_BITS(resp, 77, 1);
+		csd->dsr_imp = UNSTUFF_BITS(resp, 76, 1);
 		csd->r2w_factor = UNSTUFF_BITS(resp, 26, 3);
 		csd->write_blkbits = UNSTUFF_BITS(resp, 22, 4);
 		csd->write_partial = UNSTUFF_BITS(resp, 21, 1);
@@ -228,8 +229,8 @@ static int mmc_read_ssr(struct mmc_card *card)
 	u32 *ssr;
 
 	if (!(card->csd.cmdclass & CCC_APP_SPEC)) {
-		pr_warning("%s: card lacks mandatory SD Status "
-			"function.\n", mmc_hostname(card->host));
+		pr_warn("%s: card lacks mandatory SD Status function\n",
+			mmc_hostname(card->host));
 		return 0;
 	}
 
@@ -239,8 +240,8 @@ static int mmc_read_ssr(struct mmc_card *card)
 
 	err = mmc_app_sd_status(card, ssr);
 	if (err) {
-		pr_warning("%s: problem reading SD Status "
-			"register.\n", mmc_hostname(card->host));
+		pr_warn("%s: problem reading SD Status register\n",
+			mmc_hostname(card->host));
 		err = 0;
 		goto out;
 	}
@@ -264,8 +265,8 @@ static int mmc_read_ssr(struct mmc_card *card)
 				card->ssr.erase_offset = eo * 1000;
 			}
 		} else {
-			pr_warning("%s: SD Status: Invalid Allocation Unit size.\n",
-				   mmc_hostname(card->host));
+			pr_warn("%s: SD Status: Invalid Allocation Unit size\n",
+				mmc_hostname(card->host));
 		}
 	}
 out:
@@ -285,8 +286,7 @@ static int mmc_read_switch(struct mmc_card *card)
 		return 0;
 
 	if (!(card->csd.cmdclass & CCC_SWITCH)) {
-		pr_warning("%s: card lacks mandatory switch "
-			"function, performance might suffer.\n",
+		pr_warn("%s: card lacks mandatory switch function, performance might suffer\n",
 			mmc_hostname(card->host));
 		return 0;
 	}
@@ -315,7 +315,7 @@ static int mmc_read_switch(struct mmc_card *card)
 		if (err != -EINVAL && err != -ENOSYS && err != -EFAULT)
 			goto out;
 
-		pr_warning("%s: problem reading Bus Speed modes.\n",
+		pr_warn("%s: problem reading Bus Speed modes\n",
 			mmc_hostname(card->host));
 		err = 0;
 
@@ -371,8 +371,7 @@ int mmc_sd_switch_hs(struct mmc_card *card)
 		goto out;
 
 	if ((status[16] & 0xF) != 1) {
-		pr_warning("%s: Problem switching card "
-			"into high-speed mode!\n",
+		pr_warn("%s: Problem switching card into high-speed mode!\n",
 			mmc_hostname(card->host));
 		err = 0;
 	} else {
@@ -439,7 +438,7 @@ static int sd_select_driver_type(struct mmc_card *card, u8 *status)
 		return err;
 
 	if ((status[15] & 0xF) != drive_strength) {
-		pr_warning("%s: Problem setting drive strength!\n",
+		pr_warn("%s: Problem setting drive strength!\n",
 			mmc_hostname(card->host));
 		return 0;
 	}
@@ -517,7 +516,7 @@ static int sd_set_bus_speed_mode(struct mmc_card *card, u8 *status)
 		return err;
 
 	if ((status[16] & 0xF) != card->sd_bus_speed)
-		pr_warning("%s: Problem setting bus speed mode!\n",
+		pr_warn("%s: Problem setting bus speed mode!\n",
 			mmc_hostname(card->host));
 	else {
 		mmc_set_timing(card->host, timing);
@@ -597,7 +596,7 @@ static int sd_set_current_limit(struct mmc_card *card, u8 *status)
 			return err;
 
 		if (((status[15] >> 4) & 0x0F) != current_limit)
-			pr_warning("%s: Problem setting current limit!\n",
+			pr_warn("%s: Problem setting current limit!\n",
 				mmc_hostname(card->host));
 
 	}
@@ -726,8 +725,7 @@ int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr)
 try_again:
 	if (!retries) {
 		ocr &= ~SD_OCR_S18R;
-		pr_warning("%s: Skipping voltage switch\n",
-			mmc_hostname(host));
+		pr_warn("%s: Skipping voltage switch\n", mmc_hostname(host));
 	}
 
 	/*
@@ -871,9 +869,7 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
 		}
 
 		if (ro < 0) {
-			pr_warning("%s: host does not "
-				"support reading read-only "
-				"switch. assuming write-enable.\n",
+			pr_warn("%s: host does not support reading read-only switch, assuming write-enable\n",
 				mmc_hostname(host));
 		} else if (ro > 0) {
 			mmc_card_set_readonly(card);
@@ -954,6 +950,13 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 	}
 
 	/*
+	 * handling only for cards supporting DSR and hosts requesting
+	 * DSR configuration
+	 */
+	if (card->csd.dsr_imp && host->dsr_req)
+		mmc_set_dsr(host);
+
+	/*
 	 * Select card, as all following commands rely on that.
 	 */
 	if (!mmc_host_is_spi(host)) {