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/linux-6.6.21/drivers/nvmem/
Dcore.c59 struct nvmem_device *nvmem; member
83 static int __nvmem_reg_read(struct nvmem_device *nvmem, unsigned int offset, in __nvmem_reg_read() argument
86 if (nvmem->reg_read) in __nvmem_reg_read()
87 return nvmem->reg_read(nvmem->priv, offset, val, bytes); in __nvmem_reg_read()
92 static int __nvmem_reg_write(struct nvmem_device *nvmem, unsigned int offset, in __nvmem_reg_write() argument
97 if (nvmem->reg_write) { in __nvmem_reg_write()
98 gpiod_set_value_cansleep(nvmem->wp_gpio, 0); in __nvmem_reg_write()
99 ret = nvmem->reg_write(nvmem->priv, offset, val, bytes); in __nvmem_reg_write()
100 gpiod_set_value_cansleep(nvmem->wp_gpio, 1); in __nvmem_reg_write()
107 static int nvmem_access_with_keepouts(struct nvmem_device *nvmem, in nvmem_access_with_keepouts() argument
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DMakefile11 obj-$(CONFIG_NVMEM_APPLE_EFUSES) += nvmem-apple-efuses.o
12 nvmem-apple-efuses-y := apple-efuses.o
13 obj-$(CONFIG_NVMEM_BCM_OCOTP) += nvmem-bcm-ocotp.o
14 nvmem-bcm-ocotp-y := bcm-ocotp.o
17 obj-$(CONFIG_NVMEM_IMX_IIM) += nvmem-imx-iim.o
18 nvmem-imx-iim-y := imx-iim.o
19 obj-$(CONFIG_NVMEM_IMX_OCOTP) += nvmem-imx-ocotp.o
20 nvmem-imx-ocotp-y := imx-ocotp.o
21 obj-$(CONFIG_NVMEM_IMX_OCOTP_ELE) += nvmem-imx-ocotp-ele.o
22 nvmem-imx-ocotp-ele-y := imx-ocotp-ele.o
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/linux-6.6.21/Documentation/devicetree/bindings/nvmem/
Dnvmem-consumer.yaml4 $id: http://devicetree.org/schemas/nvmem/nvmem-consumer.yaml#
15 nvmem:
18 List of phandle to the nvmem providers.
20 nvmem-cells:
23 List of phandle to the nvmem data cells.
25 nvmem-names:
27 Names for the each nvmem provider.
29 nvmem-cell-names:
31 Names for each nvmem-cells specified.
34 nvmem-names: [ nvmem ]
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Dxlnx,zynqmp-nvmem.txt2 = Zynq UltraScale+ MPSoC nvmem firmware driver binding =
8 - compatible: should be "xlnx,zynqmp-nvmem-fw"
12 bindings/nvmem/nvmem.txt
23 compatible = "xlnx,zynqmp-nvmem-fw";
36 Are device nodes which consume nvmem data cells.
42 nvmem-cells = <&soc_revision>;
43 nvmem-cell-names = "soc_revision";
/linux-6.6.21/Documentation/devicetree/bindings/thermal/
Dsprd-thermal.yaml28 nvmem-cells:
31 Reference to nvmem nodes for the calibration data.
33 nvmem-cell-names:
58 nvmem-cells:
61 Reference to an nvmem node for the calibration data.
63 nvmem-cell-names:
68 - nvmem-cells
69 - nvmem-cell-names
78 - nvmem-cells
79 - nvmem-cell-names
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Dmediatek,lvts-thermal.yaml39 nvmem-cells:
45 nvmem-cell-names:
66 nvmem-cells:
69 nvmem-cell-names:
81 nvmem-cells:
84 nvmem-cell-names:
93 - nvmem-cells
94 - nvmem-cell-names
116 nvmem-cells = <&lvts_efuse_data1 &lvts_efuse_data2>;
117 nvmem-cell-names = "lvts-calib-data-1", "lvts-calib-data-2";
Dallwinner,sun8i-a83t-ths.yaml45 nvmem-cells:
49 nvmem-cell-names:
131 nvmem-cells = <&ths_calibration>;
132 nvmem-cell-names = "calibration";
144 nvmem-cells = <&ths_calibration>;
145 nvmem-cell-names = "calibration";
157 nvmem-cells = <&ths_calibration>;
158 nvmem-cell-names = "calibration";
/linux-6.6.21/Documentation/devicetree/bindings/mtd/partitions/
Dnvmem-cells.yaml4 $id: http://devicetree.org/schemas/mtd/partitions/nvmem-cells.yaml#
10 Any partition containing the compatible "nvmem-cells" will register as a
11 nvmem provider.
12 Each direct subnodes represents a nvmem cell following the nvmem binding.
13 Nvmem binding to declare nvmem-cells can be found in:
14 Documentation/devicetree/bindings/nvmem/nvmem.yaml
21 - $ref: /schemas/nvmem/nvmem.yaml#
25 const: nvmem-cells
43 compatible = "nvmem-cells";
85 compatible = "nvmem-cells";
/linux-6.6.21/include/linux/
Dnvmem-consumer.h72 void nvmem_device_put(struct nvmem_device *nvmem);
73 void devm_nvmem_device_put(struct device *dev, struct nvmem_device *nvmem);
74 int nvmem_device_read(struct nvmem_device *nvmem, unsigned int offset,
76 int nvmem_device_write(struct nvmem_device *nvmem, unsigned int offset,
78 ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem,
80 int nvmem_device_cell_write(struct nvmem_device *nvmem,
83 const char *nvmem_dev_name(struct nvmem_device *nvmem);
174 static inline void nvmem_device_put(struct nvmem_device *nvmem) in nvmem_device_put() argument
179 struct nvmem_device *nvmem) in devm_nvmem_device_put() argument
183 static inline ssize_t nvmem_device_cell_read(struct nvmem_device *nvmem, in nvmem_device_cell_read() argument
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Dnvmem-provider.h175 int (*add_cells)(struct device *dev, struct nvmem_device *nvmem,
177 void (*fixup_cell_info)(struct nvmem_device *nvmem,
189 void nvmem_unregister(struct nvmem_device *nvmem);
197 int nvmem_add_one_cell(struct nvmem_device *nvmem,
205 const void *nvmem_layout_get_match_data(struct nvmem_device *nvmem,
215 static inline void nvmem_unregister(struct nvmem_device *nvmem) {} in nvmem_unregister() argument
225 static inline int nvmem_add_one_cell(struct nvmem_device *nvmem, in nvmem_add_one_cell() argument
239 nvmem_layout_get_match_data(struct nvmem_device *nvmem, in nvmem_layout_get_match_data() argument
/linux-6.6.21/Documentation/devicetree/bindings/iio/adc/
Dsprd,sc2720-adc.yaml37 nvmem-cells: true
39 nvmem-cell-names: true
51 nvmem-cells:
53 nvmem-cell-names:
60 nvmem-cells:
62 nvmem-cell-names:
77 - nvmem-cells
78 - nvmem-cell-names
95 nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
96 nvmem-cell-names = "big_scale_calib", "small_scale_calib";
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/linux-6.6.21/Documentation/devicetree/bindings/power/reset/
Dnvmem-reboot-mode.yaml4 $id: http://devicetree.org/schemas/power/reset/nvmem-reboot-mode.yaml#
19 const: nvmem-reboot-mode
21 nvmem-cells:
23 A phandle pointing to the nvmem-cells node where the vendor-specific
27 nvmem-cell-names:
38 - nvmem-cells
39 - nvmem-cell-names
46 compatible = "nvmem-reboot-mode";
47 nvmem-cells = <&reboot_reason>;
48 nvmem-cell-names = "reboot-mode";
/linux-6.6.21/arch/arm64/boot/dts/freescale/
Dfsl-ls1028a-kontron-kbox-a-230-ls.dts59 nvmem-cells = <&base_mac_address 2>;
60 nvmem-cell-names = "mac-address";
65 nvmem-cells = <&base_mac_address 3>;
66 nvmem-cell-names = "mac-address";
87 nvmem-cells = <&base_mac_address 4>;
88 nvmem-cell-names = "mac-address";
97 nvmem-cells = <&base_mac_address 5>;
98 nvmem-cell-names = "mac-address";
107 nvmem-cells = <&base_mac_address 6>;
108 nvmem-cell-names = "mac-address";
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Dfsl-ls1028a-kontron-sl28-var2.dts39 nvmem-cells = <&base_mac_address 2>;
40 nvmem-cell-names = "mac-address";
45 nvmem-cells = <&base_mac_address 3>;
46 nvmem-cell-names = "mac-address";
59 nvmem-cells = <&base_mac_address 0>;
60 nvmem-cell-names = "mac-address";
69 nvmem-cells = <&base_mac_address 1>;
70 nvmem-cell-names = "mac-address";
/linux-6.6.21/drivers/soc/tegra/fuse/
Dfuse-tegra.c119 struct nvmem_config nvmem; in tegra_fuse_probe() local
155 memset(&nvmem, 0, sizeof(nvmem)); in tegra_fuse_probe()
156 nvmem.dev = &pdev->dev; in tegra_fuse_probe()
157 nvmem.name = "fuse"; in tegra_fuse_probe()
158 nvmem.id = -1; in tegra_fuse_probe()
159 nvmem.owner = THIS_MODULE; in tegra_fuse_probe()
160 nvmem.cells = fuse->soc->cells; in tegra_fuse_probe()
161 nvmem.ncells = fuse->soc->num_cells; in tegra_fuse_probe()
162 nvmem.keepout = fuse->soc->keepouts; in tegra_fuse_probe()
163 nvmem.nkeepout = fuse->soc->num_keepouts; in tegra_fuse_probe()
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/linux-6.6.21/Documentation/devicetree/bindings/net/
Dsunplus,sp7021-emac.yaml62 nvmem-cells:
64 - description: nvmem cell address of MAC address
66 nvmem-cell-names:
67 description: names corresponding to the nvmem cells
75 - nvmem-cells
76 - nvmem-cell-names
117 nvmem-cells = <&mac_addr0>;
118 nvmem-cell-names = "mac-address";
125 nvmem-cells = <&mac_addr1>;
126 nvmem-cell-names = "mac-address";
Dnixge.txt15 - nvmem-cells: Phandle of nvmem cell containing the MAC address
16 - nvmem-cell-names: Should be "address"
31 nvmem-cells = <&eth1_addr>;
32 nvmem-cell-names = "address";
54 nvmem-cells = <&eth1_addr>;
55 nvmem-cell-names = "address";
70 nvmem-cells = <&eth1_addr>;
71 nvmem-cell-names = "address";
Dmarvell,prestera.yaml36 nvmem-cells: true
38 nvmem-cell-names: true
49 nvmem-cells: false
50 nvmem-cell-names: false
88 nvmem-cells = <&mac_address 0>;
89 nvmem-cell-names = "mac-address";
/linux-6.6.21/Documentation/devicetree/bindings/phy/
Dsunplus,sp7021-usb2-phy.yaml36 nvmem-cell-names:
37 description: names corresponding to the nvmem cells of disconnect voltage
40 nvmem-cells:
41 description: nvmem cell address of disconnect voltage
55 - nvmem-cell-names
56 - nvmem-cells
70 nvmem-cell-names = "disc_vol";
71 nvmem-cells = <&disc_vol>;
/linux-6.6.21/Documentation/devicetree/bindings/soc/imx/
Dimx8m-soc.yaml51 nvmem-cells:
53 description: Phandle to the SOC Unique ID provided by a nvmem node
55 nvmem-cell-names:
60 - nvmem-cells
61 - nvmem-cell-names
81 nvmem-cells = <&imx8mm_uid>;
82 nvmem-cell-names = "soc_unique_id";
/linux-6.6.21/Documentation/driver-api/
Dnvmem.rst41 nvmem configuration to nvmem_register(), on success core would return a valid
44 nvmem_unregister(nvmem) is used to unregister a previously registered provider.
62 Users of board files can define and register nvmem cells using the
81 Additionally it is possible to create nvmem cell lookup entries and register
82 them with the nvmem framework from machine code as shown in the example below::
114 `*nvmem_cell_get()` apis will get a reference to nvmem cell for a given id,
130 void nvmem_device_put(struct nvmem_device *nvmem);
131 int nvmem_device_read(struct nvmem_device *nvmem, unsigned int offset,
133 int nvmem_device_write(struct nvmem_device *nvmem, unsigned int offset,
135 int nvmem_device_cell_read(struct nvmem_device *nvmem,
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/linux-6.6.21/Documentation/ABI/stable/
Dsysfs-bus-nvmem1 What: /sys/bus/nvmem/devices/.../nvmem
7 Permissions for write to this file depends on the nvmem
14 hexdump /sys/bus/nvmem/devices/qfprom0/nvmem
/linux-6.6.21/drivers/soc/ti/
Dpm33xx.c276 struct nvmem_device *nvmem; in am33xx_pm_begin() local
279 nvmem = devm_nvmem_device_get(&omap_rtc->dev, in am33xx_pm_begin()
281 if (!IS_ERR(nvmem)) in am33xx_pm_begin()
282 nvmem_device_write(nvmem, RTC_SCRATCH_MAGIC_REG * 4, 4, in am33xx_pm_begin()
306 struct nvmem_device *nvmem; in am33xx_pm_end() local
308 nvmem = devm_nvmem_device_get(&omap_rtc->dev, "omap_rtc_scratch0"); in am33xx_pm_end()
309 if (IS_ERR(nvmem)) in am33xx_pm_end()
327 nvmem_device_write(nvmem, RTC_SCRATCH_MAGIC_REG * 4, 4, in am33xx_pm_end()
440 struct nvmem_device *nvmem; in am33xx_pm_rtc_setup() local
465 nvmem = devm_nvmem_device_get(&omap_rtc->dev, in am33xx_pm_rtc_setup()
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/linux-6.6.21/drivers/nvmem/layouts/
Dsl28vpd.c56 static int sl28vpd_v1_check_crc(struct device *dev, struct nvmem_device *nvmem) in sl28vpd_v1_check_crc() argument
65 ret = nvmem_device_read(nvmem, 0, sizeof(data_v1), &data_v1); in sl28vpd_v1_check_crc()
83 static int sl28vpd_add_cells(struct device *dev, struct nvmem_device *nvmem, in sl28vpd_add_cells() argument
93 ret = nvmem_device_read(nvmem, 0, sizeof(hdr), &hdr); in sl28vpd_add_cells()
109 ret = sl28vpd_v1_check_crc(dev, nvmem); in sl28vpd_add_cells()
113 layout_np = of_nvmem_layout_get_container(nvmem); in sl28vpd_add_cells()
126 ret = nvmem_add_one_cell(nvmem, &info); in sl28vpd_add_cells()
/linux-6.6.21/drivers/rtc/
Dnvmem.c17 struct nvmem_device *nvmem; in devm_rtc_nvmem_register() local
24 nvmem = devm_nvmem_register(dev, nvmem_config); in devm_rtc_nvmem_register()
25 if (IS_ERR(nvmem)) in devm_rtc_nvmem_register()
28 return PTR_ERR_OR_ZERO(nvmem); in devm_rtc_nvmem_register()

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