Merge tag 'mmc-updates-for-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball: "MMC highlights for 3.15: Core: - CONFIG_MMC_UNSAFE_RESUME=y is now default behavior - DT bindings for SDHCI UHS, eMMC HS200, high-speed DDR, at 1.8/1.2V - Add GPIO descriptor based slot-gpio card detect API Drivers: - dw_mmc: Refactor SOCFPGA support as a variant inside dw_mmc-pltfm.c - mmci: Support HW busy detection on ux500 - omap: Support MMC_ERASE - omap_hsmmc: Support MMC_PM_KEEP_POWER, MMC_PM_WAKE_SDIO_IRQ, (a)cmd23 - rtsx: Support pre-req/post-req async - sdhci: Add support for Realtek RTS5250 controllers - sdhci-acpi: Add support for 80860F16, fix 80860F14/SDIO card detect - sdhci-msm: Add new driver for Qualcomm SDHCI chipset support - sdhci-pxav3: Add support for Marvell Armada 380 and 385 SoCs" * tag 'mmc-updates-for-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (102 commits) mmc: sdhci-acpi: Intel SDIO has broken card detect mmc: sdhci-pxav3: add support for the Armada 38x SDHCI controller mmc: sdhci-msm: Add platform_execute_tuning implementation mmc: sdhci-msm: Initial support for Qualcomm chipsets mmc: sdhci-msm: Qualcomm SDHCI binding documentation sdhci: only reprogram retuning timer when flag is set mmc: rename ARCH_BCM to ARCH_BCM_MOBILE mmc: sdhci: Allow for irq being shared mmc: sdhci-acpi: Add device id 80860F16 mmc: sdhci-acpi: Fix broken card detect for ACPI HID 80860F14 mmc: slot-gpio: Add GPIO descriptor based CD GPIO API mmc: slot-gpio: Split out CD IRQ request into a separate function mmc: slot-gpio: Record GPIO descriptors instead of GPIO numbers Revert "dts: socfpga: Add support for SD/MMC on the SOCFPGA platform" mmc: sdhci-spear: use generic card detection gpio support mmc: sdhci-spear: remove support for power gpio mmc: sdhci-spear: simplify resource handling mmc: sdhci-spear: fix platform_data usage mmc: sdhci-spear: fix error handling paths for DT mmc: sdhci-bcm-kona: fix build errors when built-in ...
2026-05-01 15:00:59 -07:00 · 2014-04-09 08:39:39 -07:00
parent 042f7b7cbd c67480173f
commit 97e18dc007
63 changed files with 2581 additions and 1170 deletions
@@ -26,9 +26,18 @@ Optional properties:
  this system, even if the controller claims it is.
 - cap-sd-highspeed: SD high-speed timing is supported
 - cap-mmc-highspeed: MMC high-speed timing is supported
+- sd-uhs-sdr12: SD UHS SDR12 speed is supported
+- sd-uhs-sdr25: SD UHS SDR25 speed is supported
+- sd-uhs-sdr50: SD UHS SDR50 speed is supported
+- sd-uhs-sdr104: SD UHS SDR104 speed is supported
+- sd-uhs-ddr50: SD UHS DDR50 speed is supported
 - cap-power-off-card: powering off the card is safe
 - cap-sdio-irq: enable SDIO IRQ signalling on this interface
 - full-pwr-cycle: full power cycle of the card is supported
+- mmc-highspeed-ddr-1_8v: eMMC high-speed DDR mode(1.8V I/O) is supported
+- mmc-highspeed-ddr-1_2v: eMMC high-speed DDR mode(1.2V I/O) is supported
+- mmc-hs200-1_8v: eMMC HS200 mode(1.8V I/O) is supported
+- mmc-hs200-1_2v: eMMC HS200 mode(1.2V I/O) is supported

 *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
 polarity properties, we have to fix the meaning of the "normal" and "inverted"
@@ -0,0 +1,55 @@
+* Qualcomm SDHCI controller (sdhci-msm)
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-msm driver.
+
+Required properties:
+- compatible: Should contain "qcom,sdhci-msm-v4".
+- reg: Base address and length of the register in the following order:
+	- Host controller register map (required)
+	- SD Core register map (required)
+- interrupts: Should contain an interrupt-specifiers for the interrupts:
+	- Host controller interrupt (required)
+- pinctrl-names: Should contain only one value - "default".
+- pinctrl-0: Should specify pin control groups used for this controller.
+- clocks: A list of phandle + clock-specifier pairs for the clocks listed in clock-names.
+- clock-names: Should contain the following:
+	"iface" - Main peripheral bus clock (PCLK/HCLK - AHB Bus clock) (required)
+	"core"	- SDC MMC clock (MCLK) (required)
+	"bus"	- SDCC bus voter clock (optional)
+
+Example:
+
+	sdhc_1: sdhci@f9824900 {
+		compatible = "qcom,sdhci-msm-v4";
+		reg = <0xf9824900 0x11c>, <0xf9824000 0x800>;
+		interrupts = <0 123 0>;
+		bus-width = <8>;
+		non-removable;
+
+		vmmc = <&pm8941_l20>;
+		vqmmc = <&pm8941_s3>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdc1_clk &sdc1_cmd &sdc1_data>;
+
+		clocks = <&gcc GCC_SDCC1_APPS_CLK>, <&gcc GCC_SDCC1_AHB_CLK>;
+		clock-names = "core", "iface";
+	};
+
+	sdhc_2: sdhci@f98a4900 {
+		compatible = "qcom,sdhci-msm-v4";
+		reg = <0xf98a4900 0x11c>, <0xf98a4000 0x800>;
+		interrupts = <0 125 0>;
+		bus-width = <4>;
+		cd-gpios = <&msmgpio 62 0x1>;
+
+		vmmc = <&pm8941_l21>;
+		vqmmc = <&pm8941_l13>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdc2_clk &sdc2_cmd &sdc2_data>;
+
+		clocks = <&gcc GCC_SDCC2_APPS_CLK>, <&gcc GCC_SDCC2_AHB_CLK>;
+		clock-names = "core", "iface";
+	};
@@ -4,7 +4,14 @@ This file documents differences between the core properties in mmc.txt
 and the properties used by the sdhci-pxav2 and sdhci-pxav3 drivers.

 Required properties:
- compatible: Should be "mrvl,pxav2-mmc" or "mrvl,pxav3-mmc".
+- compatible: Should be "mrvl,pxav2-mmc", "mrvl,pxav3-mmc" or
+  "marvell,armada-380-sdhci".
+- reg:
+  * for "mrvl,pxav2-mmc" and "mrvl,pxav3-mmc", one register area for
+    the SDHCI registers.
+  * for "marvell,armada-380-sdhci", two register areas. The first one
+    for the SDHCI registers themselves, and the second one for the
+    AXI/Mbus bridge registers of the SDHCI unit.

 Optional properties:
 - mrvl,clk-delay-cycles: Specify a number of cycles to delay for tuning.
@@ -19,3 +26,11 @@ sdhci@d4280800 {
 	non-removable;
 	mrvl,clk-delay-cycles = <31>;
 };
+
+sdhci@d8000 {
+	compatible = "marvell,armada-380-sdhci";
+	reg = <0xd8000 0x1000>, <0xdc000 0x100>;
+	interrupts = <0 25 0x4>;
+	clocks = <&gateclk 17>;
+	mrvl,clk-delay-cycles = <0x1F>;
+};
@@ -10,6 +10,7 @@ Required properties:
 - compatible:
 Should be "ti,omap2-hsmmc", for OMAP2 controllers
 Should be "ti,omap3-hsmmc", for OMAP3 controllers
+ Should be "ti,omap3-pre-es3-hsmmc" for OMAP3 controllers pre ES3.0
 Should be "ti,omap4-hsmmc", for OMAP4 controllers
 - ti,hwmods: Must be "mmc<n>", n is controller instance starting 1

@@ -0,0 +1,27 @@
+PBIAS internal regulator for SD card dual voltage i/o pads on OMAP SoCs.
+
+Required properties:
+- compatible:
+  - "ti,pbias-omap" for OMAP2, OMAP3, OMAP4, OMAP5, DRA7.
+- reg: pbias register offset from syscon base and size of pbias register.
+- syscon : phandle of the system control module
+- regulator-name : should be
+			pbias_mmc_omap2430 for OMAP2430, OMAP3 SoCs
+			pbias_sim_omap3 for OMAP3 SoCs
+			pbias_mmc_omap4 for OMAP4 SoCs
+			pbias_mmc_omap5 for OMAP5 and DRA7 SoC
+
+Optional properties:
+- Any optional property defined in bindings/regulator/regulator.txt
+
+Example:
+
+		pbias_regulator: pbias_regulator {
+			compatible = "ti,pbias-omap";
+			reg = <0 0x4>;
+			syscon = <&omap5_padconf_global>;
+			pbias_mmc_reg: pbias_mmc_omap5 {
+				regulator-name = "pbias_mmc_omap5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3000000>;
+			};
@@ -5930,6 +5930,7 @@ F:	include/linux/mfd/

 MULTIMEDIA CARD (MMC), SECURE DIGITAL (SD) AND SDIO SUBSYSTEM
 M:	Chris Ball <chris@printf.net>
+M:	Ulf Hansson <ulf.hansson@linaro.org>
 L:	linux-mmc@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
 S:	Maintained
@@ -154,6 +154,22 @@
 			ti,hwmods = "counter_32k";
 		};

+		dra7_ctrl_general: tisyscon@4a002e00 {
+			compatible = "syscon";
+			reg = <0x4a002e00 0x7c>;
+		};
+
+		pbias_regulator: pbias_regulator {
+			compatible = "ti,pbias-omap";
+			reg = <0 0x4>;
+			syscon = <&dra7_ctrl_general>;
+			pbias_mmc_reg: pbias_mmc_omap5 {
+				regulator-name = "pbias_mmc_omap5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3000000>;
+			};
+		};
+
 		dra7_pmx_core: pinmux@4a003400 {
 			compatible = "pinctrl-single";
 			reg = <0x4a003400 0x0464>;
@@ -543,6 +559,7 @@
 			dmas = <&sdma 61>, <&sdma 62>;
 			dma-names = "tx", "rx";
 			status = "disabled";
+			pbias-supply = <&pbias_mmc_reg>;
 		};

 		mmc2: mmc@480b4000 {
@@ -29,6 +29,22 @@
 			pinctrl-single,function-mask = <0x3f>;
 		};

+		omap2_scm_general: tisyscon@49002270 {
+			compatible = "syscon";
+			reg = <0x49002270 0x240>;
+		};
+
+		pbias_regulator: pbias_regulator {
+			compatible = "ti,pbias-omap";
+			reg = <0x230 0x4>;
+			syscon = <&omap2_scm_general>;
+			pbias_mmc_reg: pbias_mmc_omap2430 {
+				regulator-name = "pbias_mmc_omap2430";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3000000>;
+			};
+		};
+
 		gpio1: gpio@4900c000 {
 			compatible = "ti,omap2-gpio";
 			reg = <0x4900c000 0x200>;
@@ -188,6 +204,7 @@
 			ti,dual-volt;
 			dmas = <&sdma 61>, <&sdma 62>;
 			dma-names = "tx", "rx";
+			pbias-supply = <&pbias_mmc_reg>;
 		};

 		mmc2: mmc@480b4000 {
@@ -174,8 +174,20 @@
 };

 &mmc1 {
+	/* See 35xx errata 2.1.1.128 in SPRZ278F */
+	compatible = "ti,omap3-pre-es3-hsmmc";
 	vmmc-supply = <&vmmc1>;
 	bus-width = <4>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+};
+
+&mmc2 {
+	status="disabled";
+};
+
+&mmc3 {
+	status="disabled";
 };

 &omap3_pmx_core {
@@ -209,6 +221,17 @@
 			0x174 (PIN_OUTPUT | MUX_MODE0)	/* hsusb0_stp.hsusb0_stp */
 		>;
 	};
+
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			OMAP3_CORE1_IOPAD(0x2144, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_clk.mmc1_clk */
+			OMAP3_CORE1_IOPAD(0x2146, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_cmd.mmc1_cmd */
+			OMAP3_CORE1_IOPAD(0x2148, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat0.mmc1_dat0 */
+			OMAP3_CORE1_IOPAD(0x214A, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat1.mmc1_dat1 */
+			OMAP3_CORE1_IOPAD(0x214C, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat2.mmc1_dat2 */
+			OMAP3_CORE1_IOPAD(0x214e, PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc1_dat3.mmc1_dat3 */
+		>;
+	};
 };

 &usb_otg_hs {
@@ -181,6 +181,22 @@
 			pinctrl-single,function-mask = <0xff1f>;
 		};

+		omap3_scm_general: tisyscon@48002270 {
+			compatible = "syscon";
+			reg = <0x48002270 0x2f0>;
+		};
+
+		pbias_regulator: pbias_regulator {
+			compatible = "ti,pbias-omap";
+			reg = <0x2b0 0x4>;
+			syscon = <&omap3_scm_general>;
+			pbias_mmc_reg: pbias_mmc_omap2430 {
+				regulator-name = "pbias_mmc_omap2430";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3000000>;
+			};
+		};
+
 		gpio1: gpio@48310000 {
 			compatible = "ti,omap3-gpio";
 			reg = <0x48310000 0x200>;
@@ -395,6 +411,7 @@
 			ti,dual-volt;
 			dmas = <&sdma 61>, <&sdma 62>;
 			dma-names = "tx", "rx";
+			pbias-supply = <&pbias_mmc_reg>;
 		};

 		mmc2: mmc@480b4000 {
@@ -191,6 +191,22 @@
 			pinctrl-single,function-mask = <0x7fff>;
 		};

+		omap4_padconf_global: tisyscon@4a1005a0 {
+			compatible = "syscon";
+			reg = <0x4a1005a0 0x170>;
+		};
+
+		pbias_regulator: pbias_regulator {
+			compatible = "ti,pbias-omap";
+			reg = <0x60 0x4>;
+			syscon = <&omap4_padconf_global>;
+			pbias_mmc_reg: pbias_mmc_omap4 {
+				regulator-name = "pbias_mmc_omap4";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3000000>;
+			};
+		};
+
 		sdma: dma-controller@4a056000 {
 			compatible = "ti,omap4430-sdma";
 			reg = <0x4a056000 0x1000>;
@@ -427,6 +443,7 @@
 			ti,needs-special-reset;
 			dmas = <&sdma 61>, <&sdma 62>;
 			dma-names = "tx", "rx";
+			pbias-supply = <&pbias_mmc_reg>;
 		};

 		mmc2: mmc@480b4000 {
@@ -198,6 +198,22 @@
 			pinctrl-single,function-mask = <0x7fff>;
 		};

+		omap5_padconf_global: tisyscon@4a002da0 {
+			compatible = "syscon";
+			reg = <0x4A002da0 0xec>;
+		};
+
+		pbias_regulator: pbias_regulator {
+			compatible = "ti,pbias-omap";
+			reg = <0x60 0x4>;
+			syscon = <&omap5_padconf_global>;
+			pbias_mmc_reg: pbias_mmc_omap5 {
+				regulator-name = "pbias_mmc_omap5";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3000000>;
+			};
+		};
+
 		sdma: dma-controller@4a056000 {
 			compatible = "ti,omap4430-sdma";
 			reg = <0x4a056000 0x1000>;
@@ -480,6 +496,7 @@
 			ti,needs-special-reset;
 			dmas = <&sdma 61>, <&sdma 62>;
 			dma-names = "tx", "rx";
+			pbias-supply = <&pbias_mmc_reg>;
 		};

 		mmc2: mmc@480b4000 {
@@ -170,6 +170,7 @@ CONFIG_DRA752_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_OMAP_WATCHDOG=y
 CONFIG_TWL4030_WATCHDOG=y
+CONFIG_MFD_SYSCON=y
 CONFIG_MFD_PALMAS=y
 CONFIG_MFD_TPS65217=y
 CONFIG_MFD_TPS65910=y
@@ -181,6 +182,7 @@ CONFIG_REGULATOR_TPS6507X=y
 CONFIG_REGULATOR_TPS65217=y
 CONFIG_REGULATOR_TPS65910=y
 CONFIG_REGULATOR_TWL4030=y
+CONFIG_REGULATOR_PBIAS=y
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MODE_HELPERS=y
@@ -338,58 +338,28 @@ int rtsx_pci_transfer_data(struct rtsx_pcr *pcr, struct scatterlist *sglist,
 		int num_sg, bool read, int timeout)
 {
 	struct completion trans_done;
-	u8 dir;
-	int err = 0, i, count;
+	int err = 0, count;
 	long timeleft;
 	unsigned long flags;
-	struct scatterlist *sg;
-	enum dma_data_direction dma_dir;
-	u32 val;
-	dma_addr_t addr;
-	unsigned int len;

-	dev_dbg(&(pcr->pci->dev), "--> %s: num_sg = %d\n", __func__, num_sg);
-
-	/* don't transfer data during abort processing */
-	if (pcr->remove_pci)
-		return -EINVAL;
-
-	if ((sglist == NULL) || (num_sg <= 0))
-		return -EINVAL;
-
-	if (read) {
-		dir = DEVICE_TO_HOST;
-		dma_dir = DMA_FROM_DEVICE;
-	} else {
-		dir = HOST_TO_DEVICE;
-		dma_dir = DMA_TO_DEVICE;
-	}
-
-	count = dma_map_sg(&(pcr->pci->dev), sglist, num_sg, dma_dir);
+	count = rtsx_pci_dma_map_sg(pcr, sglist, num_sg, read);
 	if (count < 1) {
 		dev_err(&(pcr->pci->dev), "scatterlist map failed\n");
 		return -EINVAL;
 	}
 	dev_dbg(&(pcr->pci->dev), "DMA mapping count: %d\n", count);

-	val = ((u32)(dir & 0x01) << 29) | TRIG_DMA | ADMA_MODE;
-	pcr->sgi = 0;
-	for_each_sg(sglist, sg, count, i) {
-		addr = sg_dma_address(sg);
-		len = sg_dma_len(sg);
-		rtsx_pci_add_sg_tbl(pcr, addr, len, i == count - 1);
-	}

 	spin_lock_irqsave(&pcr->lock, flags);

 	pcr->done = &trans_done;
 	pcr->trans_result = TRANS_NOT_READY;
 	init_completion(&trans_done);
-	rtsx_pci_writel(pcr, RTSX_HDBAR, pcr->host_sg_tbl_addr);
-	rtsx_pci_writel(pcr, RTSX_HDBCTLR, val);

 	spin_unlock_irqrestore(&pcr->lock, flags);

+	rtsx_pci_dma_transfer(pcr, sglist, count, read);
+
 	timeleft = wait_for_completion_interruptible_timeout(
 			&trans_done, msecs_to_jiffies(timeout));
 	if (timeleft <= 0) {
@@ -413,7 +383,7 @@ out:
 	pcr->done = NULL;
 	spin_unlock_irqrestore(&pcr->lock, flags);

-	dma_unmap_sg(&(pcr->pci->dev), sglist, num_sg, dma_dir);
+	rtsx_pci_dma_unmap_sg(pcr, sglist, num_sg, read);

 	if ((err < 0) && (err != -ENODEV))
 		rtsx_pci_stop_cmd(pcr);
@@ -425,6 +395,73 @@ out:
 }
 EXPORT_SYMBOL_GPL(rtsx_pci_transfer_data);

+int rtsx_pci_dma_map_sg(struct rtsx_pcr *pcr, struct scatterlist *sglist,
+		int num_sg, bool read)
+{
+	enum dma_data_direction dir = read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+
+	if (pcr->remove_pci)
+		return -EINVAL;
+
+	if ((sglist == NULL) || num_sg < 1)
+		return -EINVAL;
+
+	return dma_map_sg(&(pcr->pci->dev), sglist, num_sg, dir);
+}
+EXPORT_SYMBOL_GPL(rtsx_pci_dma_map_sg);
+
+int rtsx_pci_dma_unmap_sg(struct rtsx_pcr *pcr, struct scatterlist *sglist,
+		int num_sg, bool read)
+{
+	enum dma_data_direction dir = read ? DMA_FROM_DEVICE : DMA_TO_DEVICE;
+
+	if (pcr->remove_pci)
+		return -EINVAL;
+
+	if (sglist == NULL || num_sg < 1)
+		return -EINVAL;
+
+	dma_unmap_sg(&(pcr->pci->dev), sglist, num_sg, dir);
+	return num_sg;
+}
+EXPORT_SYMBOL_GPL(rtsx_pci_dma_unmap_sg);
+
+int rtsx_pci_dma_transfer(struct rtsx_pcr *pcr, struct scatterlist *sglist,
+		int sg_count, bool read)
+{
+	struct scatterlist *sg;
+	dma_addr_t addr;
+	unsigned int len;
+	int i;
+	u32 val;
+	u8 dir = read ? DEVICE_TO_HOST : HOST_TO_DEVICE;
+	unsigned long flags;
+
+	if (pcr->remove_pci)
+		return -EINVAL;
+
+	if ((sglist == NULL) || (sg_count < 1))
+		return -EINVAL;
+
+	val = ((u32)(dir & 0x01) << 29) | TRIG_DMA | ADMA_MODE;
+	pcr->sgi = 0;
+	for_each_sg(sglist, sg, sg_count, i) {
+		addr = sg_dma_address(sg);
+		len = sg_dma_len(sg);
+		rtsx_pci_add_sg_tbl(pcr, addr, len, i == sg_count - 1);
+	}
+
+	spin_lock_irqsave(&pcr->lock, flags);
+
+	rtsx_pci_writel(pcr, RTSX_HDBAR, pcr->host_sg_tbl_addr);
+	rtsx_pci_writel(pcr, RTSX_HDBCTLR, val);
+
+	spin_unlock_irqrestore(&pcr->lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rtsx_pci_dma_transfer);
+
 int rtsx_pci_read_ppbuf(struct rtsx_pcr *pcr, u8 *buf, int buf_len)
 {
 	int err;
@@ -836,6 +873,8 @@ static irqreturn_t rtsx_pci_isr(int irq, void *dev_id)
 	int_reg = rtsx_pci_readl(pcr, RTSX_BIPR);
 	/* Clear interrupt flag */
 	rtsx_pci_writel(pcr, RTSX_BIPR, int_reg);
+	dev_dbg(&pcr->pci->dev, "=========== BIPR 0x%8x ==========\n", int_reg);
+
 	if ((int_reg & pcr->bier) == 0) {
 		spin_unlock(&pcr->lock);
 		return IRQ_NONE;
@@ -866,17 +905,28 @@ static irqreturn_t rtsx_pci_isr(int irq, void *dev_id)
 	}

 	if (int_reg & (NEED_COMPLETE_INT | DELINK_INT)) {
-		if (int_reg & (TRANS_FAIL_INT | DELINK_INT)) {
+		if (int_reg & (TRANS_FAIL_INT | DELINK_INT))
 			pcr->trans_result = TRANS_RESULT_FAIL;
-			if (pcr->done)
-				complete(pcr->done);
-		} else if (int_reg & TRANS_OK_INT) {
+		else if (int_reg & TRANS_OK_INT)
 			pcr->trans_result = TRANS_RESULT_OK;
-			if (pcr->done)
-				complete(pcr->done);
+
+		if (pcr->done)
+			complete(pcr->done);
+
+		if (int_reg & SD_EXIST) {
+			struct rtsx_slot *slot = &pcr->slots[RTSX_SD_CARD];
+			if (slot && slot->done_transfer)
+				slot->done_transfer(slot->p_dev);
+		}
+
+		if (int_reg & MS_EXIST) {
+			struct rtsx_slot *slot = &pcr->slots[RTSX_SD_CARD];
+			if (slot && slot->done_transfer)
+				slot->done_transfer(slot->p_dev);
 		}
 	}

+
 	if (pcr->card_inserted || pcr->card_removed)
 		schedule_delayed_work(&pcr->carddet_work,
 				msecs_to_jiffies(200));
@@ -415,8 +415,7 @@ static int ioctl_do_sanitize(struct mmc_card *card)
 {
 	int err;

-	if (!(mmc_can_sanitize(card) &&
-	      (card->host->caps2 & MMC_CAP2_SANITIZE))) {
+	if (!mmc_can_sanitize(card)) {
 			pr_warn("%s: %s - SANITIZE is not supported\n",
 				mmc_hostname(card->host), __func__);
 			err = -EOPNOTSUPP;
@@ -722,19 +721,6 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
 	return result;
 }

-static int send_stop(struct mmc_card *card, u32 *status)
-{
-	struct mmc_command cmd = {0};
-	int err;
-
-	cmd.opcode = MMC_STOP_TRANSMISSION;
-	cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
-	err = mmc_wait_for_cmd(card->host, &cmd, 5);
-	if (err == 0)
-		*status = cmd.resp[0];
-	return err;
-}
-
 static int get_card_status(struct mmc_card *card, u32 *status, int retries)
 {
 	struct mmc_command cmd = {0};
@@ -750,6 +736,99 @@ static int get_card_status(struct mmc_card *card, u32 *status, int retries)
 	return err;
 }

+static int card_busy_detect(struct mmc_card *card, unsigned int timeout_ms,
+		bool hw_busy_detect, struct request *req, int *gen_err)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
+	int err = 0;
+	u32 status;
+
+	do {
+		err = get_card_status(card, &status, 5);
+		if (err) {
+			pr_err("%s: error %d requesting status\n",
+			       req->rq_disk->disk_name, err);
+			return err;
+		}
+
+		if (status & R1_ERROR) {
+			pr_err("%s: %s: error sending status cmd, status %#x\n",
+				req->rq_disk->disk_name, __func__, status);
+			*gen_err = 1;
+		}
+
+		/* We may rely on the host hw to handle busy detection.*/
+		if ((card->host->caps & MMC_CAP_WAIT_WHILE_BUSY) &&
+			hw_busy_detect)
+			break;
+
+		/*
+		 * Timeout if the device never becomes ready for data and never
+		 * leaves the program state.
+		 */
+		if (time_after(jiffies, timeout)) {
+			pr_err("%s: Card stuck in programming state! %s %s\n",
+				mmc_hostname(card->host),
+				req->rq_disk->disk_name, __func__);
+			return -ETIMEDOUT;
+		}
+
+		/*
+		 * Some cards mishandle the status bits,
+		 * so make sure to check both the busy
+		 * indication and the card state.
+		 */
+	} while (!(status & R1_READY_FOR_DATA) ||
+		 (R1_CURRENT_STATE(status) == R1_STATE_PRG));
+
+	return err;
+}
+
+static int send_stop(struct mmc_card *card, unsigned int timeout_ms,
+		struct request *req, int *gen_err, u32 *stop_status)
+{
+	struct mmc_host *host = card->host;
+	struct mmc_command cmd = {0};
+	int err;
+	bool use_r1b_resp = rq_data_dir(req) == WRITE;
+
+	/*
+	 * Normally we use R1B responses for WRITE, but in cases where the host
+	 * has specified a max_busy_timeout we need to validate it. A failure
+	 * means we need to prevent the host from doing hw busy detection, which
+	 * is done by converting to a R1 response instead.
+	 */
+	if (host->max_busy_timeout && (timeout_ms > host->max_busy_timeout))
+		use_r1b_resp = false;
+
+	cmd.opcode = MMC_STOP_TRANSMISSION;
+	if (use_r1b_resp) {
+		cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
+		cmd.busy_timeout = timeout_ms;
+	} else {
+		cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_AC;
+	}
+
+	err = mmc_wait_for_cmd(host, &cmd, 5);
+	if (err)
+		return err;
+
+	*stop_status = cmd.resp[0];
+
+	/* No need to check card status in case of READ. */
+	if (rq_data_dir(req) == READ)
+		return 0;
+
+	if (!mmc_host_is_spi(host) &&
+		(*stop_status & R1_ERROR)) {
+		pr_err("%s: %s: general error sending stop command, resp %#x\n",
+			req->rq_disk->disk_name, __func__, *stop_status);
+		*gen_err = 1;
+	}
+
+	return card_busy_detect(card, timeout_ms, use_r1b_resp, req, gen_err);
+}
+
 #define ERR_NOMEDIUM	3
 #define ERR_RETRY	2
 #define ERR_ABORT	1
@@ -866,26 +945,21 @@ static int mmc_blk_cmd_recovery(struct mmc_card *card, struct request *req,
 	 */
 	if (R1_CURRENT_STATE(status) == R1_STATE_DATA ||
 	    R1_CURRENT_STATE(status) == R1_STATE_RCV) {
-		err = send_stop(card, &stop_status);
-		if (err)
+		err = send_stop(card,
+			DIV_ROUND_UP(brq->data.timeout_ns, 1000000),
+			req, gen_err, &stop_status);
+		if (err) {
 			pr_err("%s: error %d sending stop command\n",
 			       req->rq_disk->disk_name, err);
-
-		/*
-		 * If the stop cmd also timed out, the card is probably
-		 * not present, so abort.  Other errors are bad news too.
-		 */
-		if (err)
+			/*
+			 * If the stop cmd also timed out, the card is probably
+			 * not present, so abort. Other errors are bad news too.
+			 */
 			return ERR_ABORT;
+		}
+
 		if (stop_status & R1_CARD_ECC_FAILED)
 			*ecc_err = 1;
-		if (!mmc_host_is_spi(card->host) && rq_data_dir(req) != READ)
-			if (stop_status & R1_ERROR) {
-				pr_err("%s: %s: general error sending stop command, stop cmd response %#x\n",
-				       req->rq_disk->disk_name, __func__,
-				       stop_status);
-				*gen_err = 1;
-			}
 	}

 	/* Check for set block count errors */
@@ -1157,8 +1231,7 @@ static int mmc_blk_err_check(struct mmc_card *card,
 	 * program mode, which we have to wait for it to complete.
 	 */
 	if (!mmc_host_is_spi(card->host) && rq_data_dir(req) != READ) {
-		u32 status;
-		unsigned long timeout;
+		int err;

 		/* Check stop command response */
 		if (brq->stop.resp[0] & R1_ERROR) {
@@ -1168,39 +1241,10 @@ static int mmc_blk_err_check(struct mmc_card *card,
 			gen_err = 1;
 		}

-		timeout = jiffies + msecs_to_jiffies(MMC_BLK_TIMEOUT_MS);
-		do {
-			int err = get_card_status(card, &status, 5);
-			if (err) {
-				pr_err("%s: error %d requesting status\n",
-				       req->rq_disk->disk_name, err);
-				return MMC_BLK_CMD_ERR;
-			}
-
-			if (status & R1_ERROR) {
-				pr_err("%s: %s: general error sending status command, card status %#x\n",
-				       req->rq_disk->disk_name, __func__,
-				       status);
-				gen_err = 1;
-			}
-
-			/* Timeout if the device never becomes ready for data
-			 * and never leaves the program state.
-			 */
-			if (time_after(jiffies, timeout)) {
-				pr_err("%s: Card stuck in programming state!"\
-					" %s %s\n", mmc_hostname(card->host),
-					req->rq_disk->disk_name, __func__);
-
-				return MMC_BLK_CMD_ERR;
-			}
-			/*
-			 * Some cards mishandle the status bits,
-			 * so make sure to check both the busy
-			 * indication and the card state.
-			 */
-		} while (!(status & R1_READY_FOR_DATA) ||
-			 (R1_CURRENT_STATE(status) == R1_STATE_PRG));
+		err = card_busy_detect(card, MMC_BLK_TIMEOUT_MS, false, req,
+					&gen_err);
+		if (err)
+			return MMC_BLK_CMD_ERR;
 	}

 	/* if general error occurs, retry the write operation. */
@@ -1335,7 +1379,6 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
 	brq->data.blksz = 512;
 	brq->stop.opcode = MMC_STOP_TRANSMISSION;
 	brq->stop.arg = 0;
-	brq->stop.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
 	brq->data.blocks = blk_rq_sectors(req);

 	/*
@@ -1378,9 +1421,15 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
 	if (rq_data_dir(req) == READ) {
 		brq->cmd.opcode = readcmd;
 		brq->data.flags |= MMC_DATA_READ;
+		if (brq->mrq.stop)
+			brq->stop.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 |
+					MMC_CMD_AC;
 	} else {
 		brq->cmd.opcode = writecmd;
 		brq->data.flags |= MMC_DATA_WRITE;
+		if (brq->mrq.stop)
+			brq->stop.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B |
+					MMC_CMD_AC;
 	}

 	if (do_rel_wr)
@@ -2,21 +2,6 @@
 # MMC core configuration
 #

-config MMC_UNSAFE_RESUME
-	bool "Assume MMC/SD cards are non-removable (DANGEROUS)"
-	help
-	  If you say Y here, the MMC layer will assume that all cards
-	  stayed in their respective slots during the suspend. The
-	  normal behaviour is to remove them at suspend and
-	  redetecting them at resume. Breaking this assumption will
-	  in most cases result in data corruption.
-
-	  This option is usually just for embedded systems which use
-	  a MMC/SD card for rootfs. Most people should say N here.
-
-	  This option sets a default which can be overridden by the
-	  module parameter "removable=0" or "removable=1".
-
 config MMC_CLKGATE
 	bool "MMC host clock gating"
 	help
@@ -185,24 +185,16 @@ static int mmc_runtime_suspend(struct device *dev)
 {
 	struct mmc_card *card = mmc_dev_to_card(dev);
 	struct mmc_host *host = card->host;
-	int ret = 0;

-	if (host->bus_ops->runtime_suspend)
-		ret = host->bus_ops->runtime_suspend(host);
-
-	return ret;
+	return host->bus_ops->runtime_suspend(host);
 }

 static int mmc_runtime_resume(struct device *dev)
 {
 	struct mmc_card *card = mmc_dev_to_card(dev);
 	struct mmc_host *host = card->host;
-	int ret = 0;

-	if (host->bus_ops->runtime_resume)
-		ret = host->bus_ops->runtime_resume(host);
-
-	return ret;
+	return host->bus_ops->runtime_resume(host);
 }

 static int mmc_runtime_idle(struct device *dev)
@@ -34,6 +34,7 @@
 #include <linux/mmc/host.h>
 #include <linux/mmc/mmc.h>
 #include <linux/mmc/sd.h>
+#include <linux/mmc/slot-gpio.h>

 #include "core.h"
 #include "bus.h"
@@ -64,23 +65,6 @@ static const unsigned freqs[] = { 400000, 300000, 200000, 100000 };
 bool use_spi_crc = 1;
 module_param(use_spi_crc, bool, 0);

-/*
- * We normally treat cards as removed during suspend if they are not
- * known to be on a non-removable bus, to avoid the risk of writing
- * back data to a different card after resume.  Allow this to be
- * overridden if necessary.
- */
-#ifdef CONFIG_MMC_UNSAFE_RESUME
-bool mmc_assume_removable;
-#else
-bool mmc_assume_removable = 1;
-#endif
-EXPORT_SYMBOL(mmc_assume_removable);
-module_param_named(removable, mmc_assume_removable, bool, 0644);
-MODULE_PARM_DESC(
-	removable,
-	"MMC/SD cards are removable and may be removed during suspend");
-
 /*
 * Internal function. Schedule delayed work in the MMC work queue.
 */
@@ -302,7 +286,8 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
 	}

 	err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-			EXT_CSD_BKOPS_START, 1, timeout, use_busy_signal, true);
+			EXT_CSD_BKOPS_START, 1, timeout,
+			use_busy_signal, true, false);
 	if (err) {
 		pr_warn("%s: Error %d starting bkops\n",
 			mmc_hostname(card->host), err);
@@ -1950,7 +1935,7 @@ static int mmc_do_erase(struct mmc_card *card, unsigned int from,
 	cmd.opcode = MMC_ERASE;
 	cmd.arg = arg;
 	cmd.flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC;
-	cmd.cmd_timeout_ms = mmc_erase_timeout(card, arg, qty);
+	cmd.busy_timeout = mmc_erase_timeout(card, arg, qty);
 	err = mmc_wait_for_cmd(card->host, &cmd, 0);
 	if (err) {
 		pr_err("mmc_erase: erase error %d, status %#x\n",
@@ -2137,7 +2122,7 @@ static unsigned int mmc_do_calc_max_discard(struct mmc_card *card,
 		y = 0;
 		for (x = 1; x && x <= max_qty && max_qty - x >= qty; x <<= 1) {
 			timeout = mmc_erase_timeout(card, arg, qty + x);
-			if (timeout > host->max_discard_to)
+			if (timeout > host->max_busy_timeout)
 				break;
 			if (timeout < last_timeout)
 				break;
@@ -2169,7 +2154,7 @@ unsigned int mmc_calc_max_discard(struct mmc_card *card)
 	struct mmc_host *host = card->host;
 	unsigned int max_discard, max_trim;

-	if (!host->max_discard_to)
+	if (!host->max_busy_timeout)
 		return UINT_MAX;

 	/*
@@ -2189,7 +2174,7 @@ unsigned int mmc_calc_max_discard(struct mmc_card *card)
 		max_discard = 0;
 	}
 	pr_debug("%s: calculated max. discard sectors %u for timeout %u ms\n",
-		 mmc_hostname(host), max_discard, host->max_discard_to);
+		 mmc_hostname(host), max_discard, host->max_busy_timeout);
 	return max_discard;
 }
 EXPORT_SYMBOL(mmc_calc_max_discard);
@@ -2248,9 +2233,6 @@ static int mmc_do_hw_reset(struct mmc_host *host, int check)
 {
 	struct mmc_card *card = host->card;

-	if (!host->bus_ops->power_restore)
-		return -EOPNOTSUPP;
-
 	if (!(host->caps & MMC_CAP_HW_RESET) || !host->ops->hw_reset)
 		return -EOPNOTSUPP;

@@ -2352,7 +2334,7 @@ int _mmc_detect_card_removed(struct mmc_host *host)
 {
 	int ret;

-	if ((host->caps & MMC_CAP_NONREMOVABLE) || !host->bus_ops->alive)
+	if (host->caps & MMC_CAP_NONREMOVABLE)
 		return 0;

 	if (!host->card || mmc_card_removed(host->card))
@@ -2435,7 +2417,7 @@ void mmc_rescan(struct work_struct *work)
 	 * if there is a _removable_ card registered, check whether it is
 	 * still present
 	 */
-	if (host->bus_ops && host->bus_ops->detect && !host->bus_dead
+	if (host->bus_ops && !host->bus_dead
 	    && !(host->caps & MMC_CAP_NONREMOVABLE))
 		host->bus_ops->detect(host);

@@ -2490,6 +2472,7 @@ void mmc_start_host(struct mmc_host *host)
 		mmc_power_off(host);
 	else
 		mmc_power_up(host, host->ocr_avail);
+	mmc_gpiod_request_cd_irq(host);
 	_mmc_detect_change(host, 0, false);
 }

@@ -2501,6 +2484,8 @@ void mmc_stop_host(struct mmc_host *host)
 	host->removed = 1;
 	spin_unlock_irqrestore(&host->lock, flags);
 #endif
+	if (host->slot.cd_irq >= 0)
+		disable_irq(host->slot.cd_irq);

 	host->rescan_disable = 1;
 	cancel_delayed_work_sync(&host->detect);
@@ -2537,7 +2522,7 @@ int mmc_power_save_host(struct mmc_host *host)

 	mmc_bus_get(host);

-	if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) {
+	if (!host->bus_ops || host->bus_dead) {
 		mmc_bus_put(host);
 		return -EINVAL;
 	}
@@ -2563,7 +2548,7 @@ int mmc_power_restore_host(struct mmc_host *host)

 	mmc_bus_get(host);

-	if (!host->bus_ops || host->bus_dead || !host->bus_ops->power_restore) {
+	if (!host->bus_ops || host->bus_dead) {
 		mmc_bus_put(host);
 		return -EINVAL;
 	}
@@ -2582,12 +2567,8 @@ EXPORT_SYMBOL(mmc_power_restore_host);
 */
 int mmc_flush_cache(struct mmc_card *card)
 {
-	struct mmc_host *host = card->host;
 	int err = 0;

-	if (!(host->caps2 & MMC_CAP2_CACHE_CTRL))
-		return err;
-
 	if (mmc_card_mmc(card) &&
 			(card->ext_csd.cache_size > 0) &&
 			(card->ext_csd.cache_ctrl & 1)) {
@@ -2602,44 +2583,6 @@ int mmc_flush_cache(struct mmc_card *card)
 }
 EXPORT_SYMBOL(mmc_flush_cache);

-/*
- * Turn the cache ON/OFF.
- * Turning the cache OFF shall trigger flushing of the data
- * to the non-volatile storage.
- * This function should be called with host claimed
- */
-int mmc_cache_ctrl(struct mmc_host *host, u8 enable)
-{
-	struct mmc_card *card = host->card;
-	unsigned int timeout;
-	int err = 0;
-
-	if (!(host->caps2 & MMC_CAP2_CACHE_CTRL) ||
-			mmc_card_is_removable(host))
-		return err;
-
-	if (card && mmc_card_mmc(card) &&
-			(card->ext_csd.cache_size > 0)) {
-		enable = !!enable;
-
-		if (card->ext_csd.cache_ctrl ^ enable) {
-			timeout = enable ? card->ext_csd.generic_cmd6_time : 0;
-			err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-					EXT_CSD_CACHE_CTRL, enable, timeout);
-			if (err)
-				pr_err("%s: cache %s error %d\n",
-						mmc_hostname(card->host),
-						enable ? "on" : "off",
-						err);
-			else
-				card->ext_csd.cache_ctrl = enable;
-		}
-	}
-
-	return err;
-}
-EXPORT_SYMBOL(mmc_cache_ctrl);
-
 #ifdef CONFIG_PM

 /* Do the card removal on suspend if card is assumed removeable
@@ -2668,7 +2611,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
 		/* Validate prerequisites for suspend */
 		if (host->bus_ops->pre_suspend)
 			err = host->bus_ops->pre_suspend(host);
-		if (!err && host->bus_ops->suspend)
+		if (!err)
 			break;

 		/* Calling bus_ops->remove() with a claimed host can deadlock */
@@ -419,6 +419,16 @@ int mmc_of_parse(struct mmc_host *host)
 		host->caps |= MMC_CAP_SD_HIGHSPEED;
 	if (of_find_property(np, "cap-mmc-highspeed", &len))
 		host->caps |= MMC_CAP_MMC_HIGHSPEED;
+	if (of_find_property(np, "sd-uhs-sdr12", &len))
+		host->caps |= MMC_CAP_UHS_SDR12;
+	if (of_find_property(np, "sd-uhs-sdr25", &len))
+		host->caps |= MMC_CAP_UHS_SDR25;
+	if (of_find_property(np, "sd-uhs-sdr50", &len))
+		host->caps |= MMC_CAP_UHS_SDR50;
+	if (of_find_property(np, "sd-uhs-sdr104", &len))
+		host->caps |= MMC_CAP_UHS_SDR104;
+	if (of_find_property(np, "sd-uhs-ddr50", &len))
+		host->caps |= MMC_CAP_UHS_DDR50;
 	if (of_find_property(np, "cap-power-off-card", &len))
 		host->caps |= MMC_CAP_POWER_OFF_CARD;
 	if (of_find_property(np, "cap-sdio-irq", &len))
@@ -429,6 +439,14 @@ int mmc_of_parse(struct mmc_host *host)
 		host->pm_caps |= MMC_PM_KEEP_POWER;
 	if (of_find_property(np, "enable-sdio-wakeup", &len))
 		host->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
+	if (of_find_property(np, "mmc-ddr-1_8v", &len))
+		host->caps |= MMC_CAP_1_8V_DDR;
+	if (of_find_property(np, "mmc-ddr-1_2v", &len))
+		host->caps |= MMC_CAP_1_2V_DDR;
+	if (of_find_property(np, "mmc-hs200-1_8v", &len))
+		host->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
+	if (of_find_property(np, "mmc-hs200-1_2v", &len))
+		host->caps2 |= MMC_CAP2_HS200_1_2V_SDR;

 	return 0;

@@ -856,8 +856,10 @@ static int mmc_select_hs200(struct mmc_card *card)

 	/* switch to HS200 mode if bus width set successfully */
 	if (!err)
-		err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-				 EXT_CSD_HS_TIMING, 2, 0);
+		err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+				EXT_CSD_HS_TIMING, 2,
+				card->ext_csd.generic_cmd6_time,
+				true, true, true);
 err:
 	return err;
 }
@@ -1074,9 +1076,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 		    host->caps2 & MMC_CAP2_HS200)
 			err = mmc_select_hs200(card);
 		else if	(host->caps & MMC_CAP_MMC_HIGHSPEED)
-			err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-					 EXT_CSD_HS_TIMING, 1,
-					 card->ext_csd.generic_cmd6_time);
+			err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+					EXT_CSD_HS_TIMING, 1,
+					card->ext_csd.generic_cmd6_time,
+					true, true, true);

 		if (err && err != -EBADMSG)
 			goto free_card;
@@ -1287,8 +1290,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 	 * If cache size is higher than 0, this indicates
 	 * the existence of cache and it can be turned on.
 	 */
-	if ((host->caps2 & MMC_CAP2_CACHE_CTRL) &&
-			card->ext_csd.cache_size > 0) {
+	if (card->ext_csd.cache_size > 0) {
 		err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
 				EXT_CSD_CACHE_CTRL, 1,
 				card->ext_csd.generic_cmd6_time);
@@ -1356,11 +1358,9 @@ static int mmc_sleep(struct mmc_host *host)
 {
 	struct mmc_command cmd = {0};
 	struct mmc_card *card = host->card;
+	unsigned int timeout_ms = DIV_ROUND_UP(card->ext_csd.sa_timeout, 10000);
 	int err;

-	if (host->caps2 & MMC_CAP2_NO_SLEEP_CMD)
-		return 0;
-
 	err = mmc_deselect_cards(host);
 	if (err)
 		return err;
@@ -1369,7 +1369,19 @@ static int mmc_sleep(struct mmc_host *host)
 	cmd.arg = card->rca << 16;
 	cmd.arg |= 1 << 15;

-	cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
+	/*
+	 * If the max_busy_timeout of the host is specified, validate it against
+	 * the sleep cmd timeout. A failure means we need to prevent the host
+	 * from doing hw busy detection, which is done by converting to a R1
+	 * response instead of a R1B.
+	 */
+	if (host->max_busy_timeout && (timeout_ms > host->max_busy_timeout)) {
+		cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
+	} else {
+		cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
+		cmd.busy_timeout = timeout_ms;
+	}
+
 	err = mmc_wait_for_cmd(host, &cmd, 0);
 	if (err)
 		return err;
@@ -1380,8 +1392,8 @@ static int mmc_sleep(struct mmc_host *host)
 	 * SEND_STATUS command to poll the status because that command (and most
 	 * others) is invalid while the card sleeps.
 	 */
-	if (!(host->caps & MMC_CAP_WAIT_WHILE_BUSY))
-		mmc_delay(DIV_ROUND_UP(card->ext_csd.sa_timeout, 10000));
+	if (!cmd.busy_timeout || !(host->caps & MMC_CAP_WAIT_WHILE_BUSY))
+		mmc_delay(timeout_ms);

 	return err;
 }
@@ -1404,7 +1416,7 @@ static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type)

 	err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
 			EXT_CSD_POWER_OFF_NOTIFICATION,
-			notify_type, timeout, true, false);
+			notify_type, timeout, true, false, false);
 	if (err)
 		pr_err("%s: Power Off Notification timed out, %u\n",
 		       mmc_hostname(card->host), timeout);
@@ -1484,7 +1496,7 @@ static int _mmc_suspend(struct mmc_host *host, bool is_suspend)
 			goto out;
 	}

-	err = mmc_cache_ctrl(host, 0);
+	err = mmc_flush_cache(host->card);
 	if (err)
 		goto out;

@@ -1634,16 +1646,6 @@ static int mmc_power_restore(struct mmc_host *host)
 }

 static const struct mmc_bus_ops mmc_ops = {
-	.remove = mmc_remove,
-	.detect = mmc_detect,
-	.suspend = NULL,
-	.resume = NULL,
-	.power_restore = mmc_power_restore,
-	.alive = mmc_alive,
-	.shutdown = mmc_shutdown,
-};
-
-static const struct mmc_bus_ops mmc_ops_unsafe = {
 	.remove = mmc_remove,
 	.detect = mmc_detect,
 	.suspend = mmc_suspend,
@@ -1655,17 +1657,6 @@ static const struct mmc_bus_ops mmc_ops_unsafe = {
 	.shutdown = mmc_shutdown,
 };

-static void mmc_attach_bus_ops(struct mmc_host *host)
-{
-	const struct mmc_bus_ops *bus_ops;
-
-	if (!mmc_card_is_removable(host))
-		bus_ops = &mmc_ops_unsafe;
-	else
-		bus_ops = &mmc_ops;
-	mmc_attach_bus(host, bus_ops);
-}
-
 /*
 * Starting point for MMC card init.
 */
@@ -1685,7 +1676,7 @@ int mmc_attach_mmc(struct mmc_host *host)
 	if (err)
 		return err;

-	mmc_attach_bus_ops(host);
+	mmc_attach_bus(host, &mmc_ops);
 	if (host->ocr_avail_mmc)
 		host->ocr_avail = host->ocr_avail_mmc;

--- a/Show More
+++ b/Show More