Merge tag 'mtd/for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "Core MTD changes:
   - Use refcount to prevent corruption
   - Call external _get and _put in right order
   - Fix use-after-free in mtd release
   - Explicitly include correct DT includes
   - Clean refcounting with MTD_PARTITIONED_MASTER
   - mtdblock: make warning messages ratelimited
   - dt-bindings: Add SEAMA partition bindings

  Device driver changes:
   - Use devm helper functions
   - Fix questionable cast, remove pointless ones.
   - error handling fixes
   - add support for new chip versions
   - update DT bindings
   - misc cleanups - fix typos, whitespace, indentation"

* tag 'mtd/for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (105 commits)
  dt-bindings: mtd: amlogic,meson-nand: drop unneeded quotes
  mtd: spear_smi: Use helper function devm_clk_get_enabled()
  mtd: rawnand: orion: Use helper function devm_clk_get_optional_enabled()
  mtd: rawnand: vf610_nfc: Use helper function devm_clk_get_enabled()
  mtd: rawnand: sunxi: Use helper function devm_clk_get_enabled()
  mtd: rawnand: stm32_fmc2: Use helper function devm_clk_get_enabled()
  mtd: rawnand: mtk: Use helper function devm_clk_get_enabled()
  mtd: rawnand: mpc5121: Use helper function devm_clk_get_enabled()
  mtd: rawnand: lpc32xx_slc: Use helper function devm_clk_get_enabled()
  mtd: rawnand: intel: Use helper function devm_clk_get_enabled()
  mtd: rawnand: fsmc: Use helper function devm_clk_get_enabled()
  mtd: rawnand: arasan: Use helper function devm_clk_get_enabled()
  mtd: rawnand: qcom: Add read/read_start ops in exec_op path
  mtd: rawnand: qcom: Clear buf_count and buf_start in raw read
  mtd: maps: fix -Wvoid-pointer-to-enum-cast warning
  mtd: rawnand: fix -Wvoid-pointer-to-enum-cast warning
  mtd: rawnand: fsmc: handle clk prepare error in fsmc_nand_resume()
  mtd: rawnand: Propagate error and simplify ternary operators for brcmstb_nand_wait_for_completion()
  mtd: rawnand: qcom: Sort includes alphabetically
  mtd: rawnand: qcom: Do not override the error no of submit_descs()
  ...

Author: torvalds

Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml

@@ -50,7 +50,7 @@ patternProperties:
         const: hw
 
       nand-ecc-step-size:
-        const: 1024
+        enum: [512, 1024]
 
       nand-ecc-strength:
         enum: [8, 16, 24, 30, 40, 50, 60]
@@ -66,6 +66,10 @@ patternProperties:
 
     unevaluatedProperties: false
 
+    dependencies:
+      nand-ecc-strength: [nand-ecc-step-size]
+      nand-ecc-step-size: [nand-ecc-strength]
+
 
 required:
   - compatible

Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml

@@ -43,8 +43,10 @@ properties:
           - const: jedec,spi-nor
       - const: jedec,spi-nor
     description:
-      Must also include "jedec,spi-nor" for any SPI NOR flash that can be
-      identified by the JEDEC READ ID opcode (0x9F).
+      SPI NOR flashes compatible with the JEDEC SFDP standard or which may be
+      identified with the READ ID opcode (0x9F) do not deserve a specific
+      compatible. They should instead only be matched against the generic
+      "jedec,spi-nor" compatible.
 
   reg:
     minItems: 1
@@ -70,6 +72,21 @@ properties:
       be used on such systems, to denote the absence of a reliable reset
       mechanism.
 
+  no-wp:
+    type: boolean
+    description:
+      The status register write disable (SRWD) bit in status register, combined
+      with the WP# signal, provides hardware data protection for the device. When
+      the SRWD bit is set to 1, and the WP# signal is either driven LOW or hard
+      strapped to LOW, the status register nonvolatile bits become read-only and
+      the WRITE STATUS REGISTER operation will not execute. The only way to exit
+      this hardware-protected mode is to drive WP# HIGH. If the WP# signal of the
+      flash device is not connected or is wrongly tied to GND (that includes internal
+      pull-downs) then status register permanently becomes read-only as the SRWD bit
+      cannot be reset. This boolean flag can be used on such systems to avoid setting
+      the SRWD bit while writing the status register. WP# signal hard strapped to GND
+      can be a valid use case.
+
   reset-gpios:
     description:
       A GPIO line connected to the RESET (active low) signal of the device.

Documentation/devicetree/bindings/mtd/marvell,nand-controller.yaml

@@ -16,6 +16,7 @@ properties:
           - const: marvell,armada-8k-nand-controller
           - const: marvell,armada370-nand-controller
       - enum:
+          - marvell,ac5-nand-controller
           - marvell,armada370-nand-controller
           - marvell,pxa3xx-nand-controller
       - description: legacy bindings

Documentation/devicetree/bindings/mtd/nand-controller.yaml

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: GPL-2.0
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
 %YAML 1.2
 ---
 $id: http://devicetree.org/schemas/mtd/nand-controller.yaml#

Documentation/devicetree/bindings/mtd/oxnas-nand.txt

@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/seama.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Seattle Image Partitions
+
+description: The SEAttle iMAge (SEAMA) partition is a type of partition
+  used for NAND flash devices. This type of flash image is found in some
+  D-Link routers such as DIR-645, DIR-842, DIR-859, DIR-860L, DIR-885L,
+  DIR890L and DCH-M225, as well as in WD and NEC routers on the ath79
+  (MIPS), Broadcom BCM53xx, and RAMIPS platforms. This partition type
+  does not have children defined in the device tree, they need to be
+  detected by software.
+
+allOf:
+  - $ref: partition.yaml#
+
+maintainers:
+  - Linus Walleij <linus.walleij@linaro.org>
+
+properties:
+  compatible:
+    const: seama
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    partitions {
+        compatible = "fixed-partitions";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        partition@0 {
+            compatible = "seama";
+            reg = <0x0 0x800000>;
+            label = "firmware";
+        };
+    };

Documentation/devicetree/bindings/mtd/partitions/seama.yaml

@@ -1599,7 +1599,7 @@ static void doc_unregister_sysfs(struct platform_device *pdev,
  */
 static int flashcontrol_show(struct seq_file *s, void *p)
 {
-	struct docg3 *docg3 = (struct docg3 *)s->private;
+	struct docg3 *docg3 = s->private;
 
 	u8 fctrl;
 
@@ -1621,7 +1621,7 @@ DEFINE_SHOW_ATTRIBUTE(flashcontrol);
 
 static int asic_mode_show(struct seq_file *s, void *p)
 {
-	struct docg3 *docg3 = (struct docg3 *)s->private;
+	struct docg3 *docg3 = s->private;
 
 	int pctrl, mode;
 
@@ -1658,7 +1658,7 @@ DEFINE_SHOW_ATTRIBUTE(asic_mode);
 
 static int device_id_show(struct seq_file *s, void *p)
 {
-	struct docg3 *docg3 = (struct docg3 *)s->private;
+	struct docg3 *docg3 = s->private;
 	int id;
 
 	mutex_lock(&docg3->cascade->lock);
@@ -1672,7 +1672,7 @@ DEFINE_SHOW_ATTRIBUTE(device_id);
 
 static int protection_show(struct seq_file *s, void *p)
 {
-	struct docg3 *docg3 = (struct docg3 *)s->private;
+	struct docg3 *docg3 = s->private;
 	int protect, dps0, dps0_low, dps0_high, dps1, dps1_low, dps1_high;
 
 	mutex_lock(&docg3->cascade->lock);

drivers/mtd/devices/docg3.c

@@ -15,7 +15,7 @@
 #include <linux/sizes.h>
 #include <linux/spi/flash.h>
 #include <linux/spi/spi.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 
 #define MAX_CMD_SIZE		4
 

drivers/mtd/devices/mchp23k256.c

@@ -22,7 +22,7 @@
 #include <linux/sizes.h>
 #include <linux/spi/flash.h>
 #include <linux/spi/spi.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 
 struct mchp48_caps {
 	unsigned int size;

drivers/mtd/devices/mchp48l640.c

@@ -13,7 +13,6 @@
 #include <linux/err.h>
 #include <linux/math64.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>