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Here is the "big" set of char/misc and other driver subsystem changes for 6.11-rc1. Nothing major in here, just loads of new drivers and updates. Included in here are: - IIO api updates and new drivers added - wait_interruptable_timeout() api cleanups for some drivers - MODULE_DESCRIPTION() additions for loads of drivers - parport out-of-bounds fix - interconnect driver updates and additions - mhi driver updates and additions - w1 driver fixes - binder speedups and fixes - eeprom driver updates - coresight driver updates - counter driver update - new misc driver additions - other minor api updates All of these, EXCEPT for the final Kconfig build fix for 32bit systems, have been in linux-next for a while with no reported issues. The Kconfig fixup went in 29 hours ago, so might have missed the latest linux-next, but was acked by everyone involved. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCZppR4w8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ykwoQCeIaW3nbOiNTmOupvEnZwrN3yVNs8An3Q5L+Br 1LpTASaU6A8pN81Z1m5g =6U1z -----END PGP SIGNATURE----- Merge tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc and other driver updates from Greg KH: "Here is the "big" set of char/misc and other driver subsystem changes for 6.11-rc1. Nothing major in here, just loads of new drivers and updates. Included in here are: - IIO api updates and new drivers added - wait_interruptable_timeout() api cleanups for some drivers - MODULE_DESCRIPTION() additions for loads of drivers - parport out-of-bounds fix - interconnect driver updates and additions - mhi driver updates and additions - w1 driver fixes - binder speedups and fixes - eeprom driver updates - coresight driver updates - counter driver update - new misc driver additions - other minor api updates All of these, EXCEPT for the final Kconfig build fix for 32bit systems, have been in linux-next for a while with no reported issues. The Kconfig fixup went in 29 hours ago, so might have missed the latest linux-next, but was acked by everyone involved" * tag 'char-misc-6.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (330 commits) misc: Kconfig: exclude mrvl-cn10k-dpi compilation for 32-bit systems misc: delete Makefile.rej binder: fix hang of unregistered readers misc: Kconfig: add a new dependency for MARVELL_CN10K_DPI virtio: add missing MODULE_DESCRIPTION() macro agp: uninorth: add missing MODULE_DESCRIPTION() macro spmi: add missing MODULE_DESCRIPTION() macros dev/parport: fix the array out-of-bounds risk samples: configfs: add missing MODULE_DESCRIPTION() macro misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver misc: keba: Fix missing AUXILIARY_BUS dependency slimbus: Fix struct and documentation alignment in stream.c MAINTAINERS: CC dri-devel list on Qualcomm FastRPC patches misc: fastrpc: use coherent pool for untranslated Compute Banks misc: fastrpc: support complete DMA pool access to the DSP misc: fastrpc: add missing MODULE_DESCRIPTION() macro misc: fastrpc: Add missing dev_err newlines misc: fastrpc: Use memdup_user() nvmem: core: Implement force_ro sysfs attribute nvmem: Use sysfs_emit() for type attribute ...
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Amlogic Meson GX eFuse Driver
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*
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* Copyright (c) 2016 Endless Computers, Inc.
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* Author: Carlo Caione <carlo@endlessm.com>
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*/
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#include <linux/clk.h>
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#include <linux/module.h>
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#include <linux/nvmem-provider.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/firmware/meson/meson_sm.h>
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static int meson_efuse_read(void *context, unsigned int offset,
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void *val, size_t bytes)
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{
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struct meson_sm_firmware *fw = context;
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int ret;
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ret = meson_sm_call_read(fw, (u8 *)val, bytes, SM_EFUSE_READ, offset,
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bytes, 0, 0, 0);
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return ret < 0 ? ret : 0;
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}
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static int meson_efuse_write(void *context, unsigned int offset,
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void *val, size_t bytes)
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{
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struct meson_sm_firmware *fw = context;
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int ret;
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ret = meson_sm_call_write(fw, (u8 *)val, bytes, SM_EFUSE_WRITE, offset,
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bytes, 0, 0, 0);
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return ret < 0 ? ret : 0;
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}
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static const struct of_device_id meson_efuse_match[] = {
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{ .compatible = "amlogic,meson-gxbb-efuse", },
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{ /* sentinel */ },
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};
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MODULE_DEVICE_TABLE(of, meson_efuse_match);
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static int meson_efuse_probe(struct platform_device *pdev)
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{
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struct device *dev = &pdev->dev;
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struct meson_sm_firmware *fw;
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struct nvmem_device *nvmem;
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struct nvmem_config *econfig;
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struct clk *clk;
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unsigned int size;
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struct device_node *sm_np __free(device_node) =
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of_parse_phandle(pdev->dev.of_node, "secure-monitor", 0);
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if (!sm_np) {
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dev_err(&pdev->dev, "no secure-monitor node\n");
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return -ENODEV;
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}
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fw = meson_sm_get(sm_np);
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if (!fw)
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return -EPROBE_DEFER;
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clk = devm_clk_get_enabled(dev, NULL);
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if (IS_ERR(clk))
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return dev_err_probe(dev, PTR_ERR(clk), "failed to get efuse gate");
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if (meson_sm_call(fw, SM_EFUSE_USER_MAX, &size, 0, 0, 0, 0, 0) < 0) {
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dev_err(dev, "failed to get max user");
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return -EINVAL;
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}
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econfig = devm_kzalloc(dev, sizeof(*econfig), GFP_KERNEL);
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if (!econfig)
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return -ENOMEM;
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econfig->dev = dev;
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econfig->name = dev_name(dev);
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econfig->add_legacy_fixed_of_cells = true;
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econfig->stride = 1;
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econfig->word_size = 1;
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econfig->reg_read = meson_efuse_read;
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econfig->reg_write = meson_efuse_write;
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econfig->size = size;
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econfig->priv = fw;
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nvmem = devm_nvmem_register(&pdev->dev, econfig);
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return PTR_ERR_OR_ZERO(nvmem);
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}
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static struct platform_driver meson_efuse_driver = {
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.probe = meson_efuse_probe,
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.driver = {
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.name = "meson-efuse",
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.of_match_table = meson_efuse_match,
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},
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};
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module_platform_driver(meson_efuse_driver);
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MODULE_AUTHOR("Carlo Caione <carlo@endlessm.com>");
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MODULE_DESCRIPTION("Amlogic Meson GX NVMEM driver");
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MODULE_LICENSE("GPL v2");
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