diff options
Diffstat (limited to 'drivers/nvmem/zynqmp_nvmem.c')
| -rw-r--r-- | drivers/nvmem/zynqmp_nvmem.c | 37 |
1 files changed, 12 insertions, 25 deletions
diff --git a/drivers/nvmem/zynqmp_nvmem.c b/drivers/nvmem/zynqmp_nvmem.c index 7f15aa89a9d0..391d8e88b270 100644 --- a/drivers/nvmem/zynqmp_nvmem.c +++ b/drivers/nvmem/zynqmp_nvmem.c @@ -1,6 +1,7 @@ // SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2019 Xilinx, Inc. + * Copyright (C) 2022 - 2023, Advanced Micro Devices, Inc. */ #include <linux/module.h> @@ -11,36 +12,25 @@ #define SILICON_REVISION_MASK 0xF -struct zynqmp_nvmem_data { - struct device *dev; - struct nvmem_device *nvmem; -}; static int zynqmp_nvmem_read(void *context, unsigned int offset, void *val, size_t bytes) { + struct device *dev = context; int ret; - int idcode, version; - struct zynqmp_nvmem_data *priv = context; + int idcode; + int version; ret = zynqmp_pm_get_chipid(&idcode, &version); if (ret < 0) return ret; - dev_dbg(priv->dev, "Read chipid val %x %x\n", idcode, version); + dev_dbg(dev, "Read chipid val %x %x\n", idcode, version); *(int *)val = version & SILICON_REVISION_MASK; return 0; } -static struct nvmem_config econfig = { - .name = "zynqmp-nvmem", - .owner = THIS_MODULE, - .word_size = 1, - .size = 1, - .read_only = true, -}; - static const struct of_device_id zynqmp_nvmem_match[] = { { .compatible = "xlnx,zynqmp-nvmem-fw", }, { /* sentinel */ }, @@ -50,21 +40,18 @@ MODULE_DEVICE_TABLE(of, zynqmp_nvmem_match); static int zynqmp_nvmem_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct zynqmp_nvmem_data *priv; + struct nvmem_config econfig = {}; - priv = devm_kzalloc(dev, sizeof(struct zynqmp_nvmem_data), GFP_KERNEL); - if (!priv) - return -ENOMEM; - - priv->dev = dev; + econfig.name = "zynqmp-nvmem"; + econfig.owner = THIS_MODULE; + econfig.word_size = 1; + econfig.size = 1; econfig.dev = dev; econfig.add_legacy_fixed_of_cells = true; + econfig.read_only = true; econfig.reg_read = zynqmp_nvmem_read; - econfig.priv = priv; - - priv->nvmem = devm_nvmem_register(dev, &econfig); - return PTR_ERR_OR_ZERO(priv->nvmem); + return PTR_ERR_OR_ZERO(devm_nvmem_register(dev, &econfig)); } static struct platform_driver zynqmp_nvmem_driver = { |