Merge tag 'memory-controller-drv-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers

Memory controller drivers for v6.18

1. STM32 OMM: Fix ineffective/missing setting of the req2ack in the
   device based on DT property, if the value is different than 0.

2. Samsung Exynos SROM: Fix IO map resource leak if
   of_platform_populate() in probe() failed.

3. Broadcom brcmstb: Document existing, older devices in Devicetree
   bindings.

4. Tegra 210 EMC: Document OPP table for interconnects (driver usage
   will come later) and define memory client IDs as bindings, because
   these are shared between DTS and driver.

* tag 'memory-controller-drv-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
  memory: tegra210: Use bindings for client ids
  dt-bindings: memory: tegra210: Add memory client IDs
  dt-bindings: memory: tegra210: emc: Document OPP table and interconnect
  dt-bindings: memory: Update brcmstb-memc-ddr binding with older chips
  memory: samsung: exynos-srom: Fix of_iomap leak in exynos_srom_probe
  memory: stm32_omm: Fix req2ack update test

Link: https://lore.kernel.org/r/20250912140030.204650-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml

@@ -42,6 +42,10 @@ properties:
         items:
           - const: brcm,brcmstb-memc-ddr-rev-b.1.x
           - const: brcm,brcmstb-memc-ddr
+      - description: Revision 0.x controllers
+        items:
+          - const: brcm,brcmstb-memc-ddr-rev-a.0.0
+          - const: brcm,brcmstb-memc-ddr
 
   reg:
     maxItems: 1

Documentation/devicetree/bindings/memory-controllers/nvidia,tegra210-emc.yaml

@@ -33,6 +33,9 @@ properties:
     items:
       - description: EMC general interrupt
 
+  "#interconnect-cells":
+    const: 0
+
   memory-region:
     maxItems: 1
     description:
@@ -44,6 +47,11 @@ properties:
     description:
       phandle of the memory controller node
 
+  operating-points-v2:
+    description:
+      Should contain freqs and voltages and opp-supported-hw property, which
+      is a bitfield indicating SoC speedo ID mask.
+
 required:
   - compatible
   - reg
@@ -79,4 +87,7 @@ examples:
         interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
         memory-region = <&emc_table>;
         nvidia,memory-controller = <&mc>;
+        operating-points-v2 = <&dvfs_opp_table>;
+
+        #interconnect-cells = <0>;
     };

drivers/memory/samsung/exynos-srom.c

@@ -121,20 +121,18 @@ static int exynos_srom_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	srom->dev = dev;
-	srom->reg_base = of_iomap(np, 0);
-	if (!srom->reg_base) {
+	srom->reg_base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(srom->reg_base)) {
 		dev_err(&pdev->dev, "iomap of exynos srom controller failed\n");
-		return -ENOMEM;
+		return PTR_ERR(srom->reg_base);
 	}
 
 	platform_set_drvdata(pdev, srom);
 
 	srom->reg_offset = exynos_srom_alloc_reg_dump(exynos_srom_offsets,
 						      ARRAY_SIZE(exynos_srom_offsets));
-	if (!srom->reg_offset) {
-		iounmap(srom->reg_base);
+	if (!srom->reg_offset)
 		return -ENOMEM;
-	}
 
 	for_each_child_of_node(np, child) {
 		if (exynos_srom_configure_bank(srom, child)) {

drivers/memory/stm32_omm.c

@@ -238,7 +238,7 @@ static int stm32_omm_configure(struct device *dev)
 		if (mux & CR_MUXEN) {
 			ret = of_property_read_u32(dev->of_node, "st,omm-req2ack-ns",
 						   &req2ack);
-			if (!ret && !req2ack) {
+			if (!ret && req2ack) {
 				req2ack = DIV_ROUND_UP(req2ack, NSEC_PER_SEC / clk_rate_max) - 1;
 
 				if (req2ack > 256)

include/dt-bindings/memory/tegra210-mc.h

@@ -75,4 +75,78 @@
 #define TEGRA210_MC_RESET_ETR		28
 #define TEGRA210_MC_RESET_TSECB		29
 
+#define TEGRA210_MC_PTCR		0
+#define TEGRA210_MC_DISPLAY0A		1
+#define TEGRA210_MC_DISPLAY0AB		2
+#define TEGRA210_MC_DISPLAY0B		3
+#define TEGRA210_MC_DISPLAY0BB		4
+#define TEGRA210_MC_DISPLAY0C		5
+#define TEGRA210_MC_DISPLAY0CB		6
+#define TEGRA210_MC_AFIR		14
+#define TEGRA210_MC_AVPCARM7R		15
+#define TEGRA210_MC_DISPLAYHC		16
+#define TEGRA210_MC_DISPLAYHCB		17
+#define TEGRA210_MC_HDAR		21
+#define TEGRA210_MC_HOST1XDMAR		22
+#define TEGRA210_MC_HOST1XR		23
+#define TEGRA210_MC_NVENCSRD		28
+#define TEGRA210_MC_PPCSAHBDMAR		29
+#define TEGRA210_MC_PPCSAHBSLVR		30
+#define TEGRA210_MC_SATAR		31
+#define TEGRA210_MC_MPCORER		39
+#define TEGRA210_MC_NVENCSWR		43
+#define TEGRA210_MC_AFIW		49
+#define TEGRA210_MC_AVPCARM7W		50
+#define TEGRA210_MC_HDAW		53
+#define TEGRA210_MC_HOST1XW		54
+#define TEGRA210_MC_MPCOREW		57
+#define TEGRA210_MC_PPCSAHBDMAW		59
+#define TEGRA210_MC_PPCSAHBSLVW		60
+#define TEGRA210_MC_SATAW		61
+#define TEGRA210_MC_ISPRA		68
+#define TEGRA210_MC_ISPWA		70
+#define TEGRA210_MC_ISPWB		71
+#define TEGRA210_MC_XUSB_HOSTR		74
+#define TEGRA210_MC_XUSB_HOSTW		75
+#define TEGRA210_MC_XUSB_DEVR		76
+#define TEGRA210_MC_XUSB_DEVW		77
+#define TEGRA210_MC_ISPRAB		78
+#define TEGRA210_MC_ISPWAB		80
+#define TEGRA210_MC_ISPWBB		81
+#define TEGRA210_MC_TSECSRD		84
+#define TEGRA210_MC_TSECSWR		85
+#define TEGRA210_MC_A9AVPSCR		86
+#define TEGRA210_MC_A9AVPSCW		87
+#define TEGRA210_MC_GPUSRD		88
+#define TEGRA210_MC_GPUSWR		89
+#define TEGRA210_MC_DISPLAYT		90
+#define TEGRA210_MC_SDMMCRA		96
+#define TEGRA210_MC_SDMMCRAA		97
+#define TEGRA210_MC_SDMMCR		98
+#define TEGRA210_MC_SDMMCRAB		99
+#define TEGRA210_MC_SDMMCWA		100
+#define TEGRA210_MC_SDMMCWAA		101
+#define TEGRA210_MC_SDMMCW		102
+#define TEGRA210_MC_SDMMCWAB		103
+#define TEGRA210_MC_VICSRD		108
+#define TEGRA210_MC_VICSWR		109
+#define TEGRA210_MC_VIW			114
+#define TEGRA210_MC_DISPLAYD		115
+#define TEGRA210_MC_NVDECSRD		120
+#define TEGRA210_MC_NVDECSWR		121
+#define TEGRA210_MC_APER		122
+#define TEGRA210_MC_APEW		123
+#define TEGRA210_MC_NVJPGRD		126
+#define TEGRA210_MC_NVJPGWR		127
+#define TEGRA210_MC_SESRD		128
+#define TEGRA210_MC_SESWR		129
+#define TEGRA210_MC_AXIAPR		130
+#define TEGRA210_MC_AXIAPW		131
+#define TEGRA210_MC_ETRR		132
+#define TEGRA210_MC_ETRW		133
+#define TEGRA210_MC_TSECSRDB		134
+#define TEGRA210_MC_TSECSWRB		135
+#define TEGRA210_MC_GPUSRD2		136
+#define TEGRA210_MC_GPUSWR2		137
+
 #endif