Merge tag 'mmc-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Convert to sysfs_emit() in favor of sprintf()

   - Improve fallback to speed modes if eMMC HS200 fails

  MMC host:
   - dw_mmc: Allow variants to set minimal supported clock rate

   - dw-mmc-rockchip: Fix problems with invalid clock rates

   - litex_mmc: Add new DT based driver for the LiteX's LiteSDCard
     interface

   - litex_mmc: Add Gabriel Somlo and Joel Stanley as co-maintainers for
     LiteX

   - mtk-sd: Add support for the Mediatek MT8186 variant

   - renesas_sdhi: Add support for RZ/G2UL variant

   - renesas_sdhi: Add support for RZ/V2L variant

   - rtsx_pci: Adjust power-on sequence to conform to the SD spec

   - sdhci-am654: Add support for TI's AM62 variant

   - sdhci_am654: Fixup support for TI's AM64 variant

   - sdhci-esdhc-imx: Add support for the imx93 variant

   - sdhci-msm: Add support for the msm8953 variant

   - sdhci-pci-gli: Add support for runtime PM for the GL9763E variant

   - sdhci-pci-gli: Adjustments of the SSC function for the GL975x
     variants

   - sdhci-tegra: Add support for wake on SD card event

   - sunxi-mmc: Add support for Allwinner's F1c100s variant

   - sunxi-mmc: Add support for D1 MMC variant"

* tag 'mmc-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (37 commits)
  dt-bindings: mmc: renesas,sdhi: Document RZ/G2UL SoC
  mmc: tmio: remove outdated members from host struct
  mmc: mtk-sd: Silence delay phase calculation debug log
  mmc: davinci_mmc: Handle error for clk_enable
  mmc: sdhci-pci-gli: Add runtime PM for GL9763E
  mmc: core: Drop HS400 caps unless 8-bit bus is supported too
  mmc: host: Return an error when ->enable_sdio_irq() ops is missing
  mmc: core: Improve fallback to speed modes if eMMC HS200 fails
  dt-bindings: mmc: sunxi: add Allwinner F1c100s compatible
  mmc: dw-mmc-rockchip: Fix handling invalid clock rates
  mmc: dw_mmc: Support setting f_min from host drivers
  mmc: host: Drop commas after SoC match table sentinels
  mmc: rtsx: add 74 Clocks in power on flow
  dt-bindings: mmc: renesas,sdhi: Document RZ/V2L SoC
  mmc: sh_mmcif: Simplify division/shift logic
  mmc: sdhci_am654: Add Support for TI's AM62 SoC
  dt-bindings: mmc: imx-esdhc: Add imx93 compatible string
  dt-bindings: mmc: sdhci-am654: Add compatible string for AM62 SoC
  mmc: sdhci_am654: Fix the driver data of AM64 SoC
  mmc: core: use sysfs_emit() instead of sprintf()
  ...

Documentation/devicetree/bindings/mmc/allwinner,sun4i-a10-mmc.yaml

@@ -24,6 +24,7 @@ properties:
       - const: allwinner,sun7i-a20-mmc
       - const: allwinner,sun8i-a83t-emmc
       - const: allwinner,sun9i-a80-mmc
+      - const: allwinner,sun20i-d1-mmc
       - const: allwinner,sun50i-a64-emmc
       - const: allwinner,sun50i-a64-mmc
       - const: allwinner,sun50i-a100-emmc
@@ -49,12 +50,18 @@ properties:
       - items:
           - const: allwinner,sun50i-h6-mmc
           - const: allwinner,sun50i-a64-mmc
+      - items:
+          - const: allwinner,sun20i-d1-emmc
+          - const: allwinner,sun50i-a100-emmc
       - items:
           - const: allwinner,sun50i-h616-emmc
           - const: allwinner,sun50i-a100-emmc
       - items:
           - const: allwinner,sun50i-h616-mmc
           - const: allwinner,sun50i-a100-mmc
+      - items:
+          - const: allwinner,suniv-f1c100s-mmc
+          - const: allwinner,sun7i-a20-mmc
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.yaml

@@ -47,6 +47,7 @@ properties:
           - const: fsl,imx7d-usdhc
       - items:
           - enum:
+              - fsl,imx93-usdhc
               - fsl,imx8ulp-usdhc
           - const: fsl,imx8mm-usdhc
 

Documentation/devicetree/bindings/mmc/litex,mmc.yaml

@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/litex,mmc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LiteX LiteSDCard device
+
+maintainers:
+  - Gabriel Somlo <gsomlo@gmail.com>
+
+description: |
+  LiteSDCard is a small footprint, configurable SDCard core for FPGA based
+  system on chips.
+
+  The hardware source is Open Source and can be found on at
+  https://github.com/enjoy-digital/litesdcard/.
+
+allOf:
+  - $ref: mmc-controller.yaml#
+
+properties:
+  compatible:
+    const: litex,mmc
+
+  reg:
+    items:
+      - description: PHY registers
+      - description: CORE registers
+      - description: DMA Reader buffer
+      - description: DMA Writer buffer
+      - description: IRQ registers
+    minItems: 4
+
+  reg-names:
+    items:
+      - const: phy
+      - const: core
+      - const: reader
+      - const: writer
+      - const: irq
+    minItems: 4
+
+  clocks:
+    maxItems: 1
+    description:
+      Handle to reference clock.
+
+  vmmc-supply:
+    description:
+      Handle to fixed-voltage supply for the card power.
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - vmmc-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    mmc: mmc@12005000 {
+        compatible = "litex,mmc";
+        reg = <0x12005000 0x100>,
+              <0x12003800 0x100>,
+              <0x12003000 0x100>,
+              <0x12004800 0x100>,
+              <0x12004000 0x100>;
+        reg-names = "phy", "core", "reader", "writer", "irq";
+        clocks = <&reference_clk>;
+        vmmc-supply = <&vreg_mmc>;
+        interrupts = <4>;
+    };

Documentation/devicetree/bindings/mmc/mtk-sd.yaml

@@ -29,6 +29,9 @@ properties:
       - items:
           - const: mediatek,mt7623-mmc
           - const: mediatek,mt2701-mmc
+      - items:
+          - const: mediatek,mt8186-mmc
+          - const: mediatek,mt8183-mmc
       - items:
           - const: mediatek,mt8192-mmc
           - const: mediatek,mt8183-mmc

Documentation/devicetree/bindings/mmc/renesas,sdhi.yaml

@@ -57,7 +57,9 @@ properties:
               - renesas,sdhi-r8a77990  # R-Car E3
               - renesas,sdhi-r8a77995  # R-Car D3
               - renesas,sdhi-r8a779a0  # R-Car V3U
+              - renesas,sdhi-r9a07g043 # RZ/G2UL
               - renesas,sdhi-r9a07g044 # RZ/G2{L,LC}
+              - renesas,sdhi-r9a07g054 # RZ/V2L
           - const: renesas,rcar-gen3-sdhi # R-Car Gen3 or RZ/G2
 
   reg:
@@ -107,7 +109,10 @@ allOf:
       properties:
         compatible:
           contains:
-            const: renesas,sdhi-r9a07g044
+            enum:
+              - renesas,sdhi-r9a07g043
+              - renesas,sdhi-r9a07g044
+              - renesas,sdhi-r9a07g054
     then:
       properties:
         clocks:

Documentation/devicetree/bindings/mmc/sdhci-am654.yaml

@@ -21,6 +21,7 @@ properties:
       - const: ti,j721e-sdhci-4bit
       - const: ti,am64-sdhci-8bit
       - const: ti,am64-sdhci-4bit
+      - const: ti,am62-sdhci
       - items:
           - const: ti,j7200-sdhci-8bit
           - const: ti,j721e-sdhci-8bit

Documentation/devicetree/bindings/mmc/sdhci-msm.txt

@@ -14,6 +14,7 @@ Required properties:
 	full compatible strings with SoC and version:
 		"qcom,apq8084-sdhci", "qcom,sdhci-msm-v4"
 		"qcom,msm8226-sdhci", "qcom,sdhci-msm-v4"
+		"qcom,msm8953-sdhci", "qcom,sdhci-msm-v4"
 		"qcom,msm8974-sdhci", "qcom,sdhci-msm-v4"
 		"qcom,msm8916-sdhci", "qcom,sdhci-msm-v4"
 		"qcom,msm8992-sdhci", "qcom,sdhci-msm-v4"

MAINTAINERS

@@ -11158,12 +11158,17 @@ F:	lib/list-test.c
 LITEX PLATFORM
 M:	Karol Gugala <kgugala@antmicro.com>
 M:	Mateusz Holenko <mholenko@antmicro.com>
+M:	Gabriel Somlo <gsomlo@gmail.com>
+M:	Joel Stanley <joel@jms.id.au>
 S:	Maintained
 F:	Documentation/devicetree/bindings/*/litex,*.yaml
 F:	arch/openrisc/boot/dts/or1klitex.dts
-F:	drivers/soc/litex/litex_soc_ctrl.c
-F:	drivers/tty/serial/liteuart.c
 F:	include/linux/litex.h
+F:	drivers/tty/serial/liteuart.c
+F:	drivers/soc/litex/*
+F:	drivers/net/ethernet/litex/*
+F:	drivers/mmc/host/litex_mmc.c
+N:	litex
 
 LIVE PATCHING
 M:	Josh Poimboeuf <jpoimboe@redhat.com>

drivers/mmc/core/bus.c

@@ -15,6 +15,7 @@
 #include <linux/stat.h>
 #include <linux/of.h>
 #include <linux/pm_runtime.h>
+#include <linux/sysfs.h>
 
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
@@ -34,13 +35,13 @@ static ssize_t type_show(struct device *dev,
 
 	switch (card->type) {
 	case MMC_TYPE_MMC:
-		return sprintf(buf, "MMC\n");
+		return sysfs_emit(buf, "MMC\n");
 	case MMC_TYPE_SD:
-		return sprintf(buf, "SD\n");
+		return sysfs_emit(buf, "SD\n");
 	case MMC_TYPE_SDIO:
-		return sprintf(buf, "SDIO\n");
+		return sysfs_emit(buf, "SDIO\n");
 	case MMC_TYPE_SD_COMBO:
-		return sprintf(buf, "SDcombo\n");
+		return sysfs_emit(buf, "SDcombo\n");
 	default:
 		return -EFAULT;
 	}

drivers/mmc/core/bus.h

@@ -9,6 +9,7 @@
 #define _MMC_CORE_BUS_H
 
 #include <linux/device.h>
+#include <linux/sysfs.h>
 
 struct mmc_host;
 struct mmc_card;
@@ -17,7 +18,7 @@ struct mmc_card;
 static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *attr, char *buf)	\
 {										\
 	struct mmc_card *card = mmc_dev_to_card(dev);				\
-	return sprintf(buf, fmt, args);						\
+	return sysfs_emit(buf, fmt, args);					\
 }										\
 static DEVICE_ATTR(name, S_IRUGO, mmc_##name##_show, NULL)
 

drivers/mmc/core/host.c

@@ -588,6 +588,25 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 
 EXPORT_SYMBOL(mmc_alloc_host);
 
+static int mmc_validate_host_caps(struct mmc_host *host)
+{
+	struct device *dev = host->parent;
+	u32 caps = host->caps, caps2 = host->caps2;
+
+	if (caps & MMC_CAP_SDIO_IRQ && !host->ops->enable_sdio_irq) {
+		dev_warn(dev, "missing ->enable_sdio_irq() ops\n");
+		return -EINVAL;
+	}
+
+	if (caps2 & (MMC_CAP2_HS400_ES | MMC_CAP2_HS400) &&
+	    !(caps & MMC_CAP_8_BIT_DATA)) {
+		dev_warn(dev, "drop HS400 support since no 8-bit bus\n");
+		host->caps2 = caps2 & ~MMC_CAP2_HS400_ES & ~MMC_CAP2_HS400;
+	}
+
+	return 0;
+}
+
 /**
  *	mmc_add_host - initialise host hardware
  *	@host: mmc host
@@ -600,8 +619,9 @@ int mmc_add_host(struct mmc_host *host)
 {
 	int err;
 
-	WARN_ON((host->caps & MMC_CAP_SDIO_IRQ) &&
-		!host->ops->enable_sdio_irq);
+	err = mmc_validate_host_caps(host);
+	if (err)
+		return err;
 
 	err = device_add(&host->class_dev);
 	if (err)

drivers/mmc/core/mmc.c

@@ -12,6 +12,7 @@
 #include <linux/slab.h>
 #include <linux/stat.h>
 #include <linux/pm_runtime.h>
+#include <linux/sysfs.h>
 
 #include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
@@ -812,12 +813,11 @@ static ssize_t mmc_fwrev_show(struct device *dev,
 {
 	struct mmc_card *card = mmc_dev_to_card(dev);
 
-	if (card->ext_csd.rev < 7) {
-		return sprintf(buf, "0x%x\n", card->cid.fwrev);
-	} else {
-		return sprintf(buf, "0x%*phN\n", MMC_FIRMWARE_LEN,
-			       card->ext_csd.fwrev);
-	}
+	if (card->ext_csd.rev < 7)
+		return sysfs_emit(buf, "0x%x\n", card->cid.fwrev);
+	else
+		return sysfs_emit(buf, "0x%*phN\n", MMC_FIRMWARE_LEN,
+				  card->ext_csd.fwrev);
 }
 
 static DEVICE_ATTR(fwrev, S_IRUGO, mmc_fwrev_show, NULL);
@@ -830,10 +830,10 @@ static ssize_t mmc_dsr_show(struct device *dev,
 	struct mmc_host *host = card->host;
 
 	if (card->csd.dsr_imp && host->dsr_req)
-		return sprintf(buf, "0x%x\n", host->dsr);
+		return sysfs_emit(buf, "0x%x\n", host->dsr);
 	else
 		/* return default DSR value */
-		return sprintf(buf, "0x%x\n", 0x404);
+		return sysfs_emit(buf, "0x%x\n", 0x404);
 }
 
 static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL);
@@ -1355,11 +1355,6 @@ static int mmc_select_hs400es(struct mmc_card *card)
 	int err = -EINVAL;
 	u8 val;
 
-	if (!(host->caps & MMC_CAP_8_BIT_DATA)) {
-		err = -ENOTSUPP;
-		goto out_err;
-	}
-
 	if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400_1_2V)
 		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_120);
 
@@ -1523,13 +1518,23 @@ static int mmc_select_timing(struct mmc_card *card)
 	if (!mmc_can_ext_csd(card))
 		goto bus_speed;
 
-	if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400ES)
+	if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS400ES) {
 		err = mmc_select_hs400es(card);
-	else if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200)
+		goto out;
+	}
+
+	if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS200) {
 		err = mmc_select_hs200(card);
-	else if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS)
+		if (err == -EBADMSG)
+			card->mmc_avail_type &= ~EXT_CSD_CARD_TYPE_HS200;
+		else
+			goto out;
+	}
+
+	if (card->mmc_avail_type & EXT_CSD_CARD_TYPE_HS)
 		err = mmc_select_hs(card);
 
+out:
 	if (err && err != -EBADMSG)
 		return err;
 

drivers/mmc/core/sd.c

@@ -13,6 +13,7 @@
 #include <linux/stat.h>
 #include <linux/pm_runtime.h>
 #include <linux/scatterlist.h>
+#include <linux/sysfs.h>
 
 #include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
@@ -708,18 +709,16 @@ MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr);
 MMC_DEV_ATTR(rca, "0x%04x\n", card->rca);
 
 
-static ssize_t mmc_dsr_show(struct device *dev,
-                           struct device_attribute *attr,
-                           char *buf)
+static ssize_t mmc_dsr_show(struct device *dev, struct device_attribute *attr,
+			    char *buf)
 {
-       struct mmc_card *card = mmc_dev_to_card(dev);
-       struct mmc_host *host = card->host;
-
-       if (card->csd.dsr_imp && host->dsr_req)
-               return sprintf(buf, "0x%x\n", host->dsr);
-       else
-               /* return default DSR value */
-               return sprintf(buf, "0x%x\n", 0x404);
+	struct mmc_card *card = mmc_dev_to_card(dev);
+	struct mmc_host *host = card->host;
+
+	if (card->csd.dsr_imp && host->dsr_req)
+		return sysfs_emit(buf, "0x%x\n", host->dsr);
+	/* return default DSR value */
+	return sysfs_emit(buf, "0x%x\n", 0x404);
 }
 
 static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL);
@@ -735,9 +734,9 @@ static ssize_t info##num##_show(struct device *dev, struct device_attribute *att
 												\
 	if (num > card->num_info)								\
 		return -ENODATA;								\
-	if (!card->info[num-1][0])								\
+	if (!card->info[num - 1][0])								\
 		return 0;									\
-	return sprintf(buf, "%s\n", card->info[num-1]);						\
+	return sysfs_emit(buf, "%s\n", card->info[num - 1]);					\
 }												\
 static DEVICE_ATTR_RO(info##num)