102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/* Copyright 2019 NXP
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*/
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#include <linux/device.h>
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#include <linux/debugfs.h>
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#include <linux/fsl/ptp_qoriq.h>
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static int ptp_qoriq_fiper1_lpbk_get(void *data, u64 *val)
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{
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struct ptp_qoriq *ptp_qoriq = data;
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struct ptp_qoriq_registers *regs = &ptp_qoriq->regs;
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u32 ctrl;
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ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl);
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*val = ctrl & PP1L ? 1 : 0;
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return 0;
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}
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static int ptp_qoriq_fiper1_lpbk_set(void *data, u64 val)
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{
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struct ptp_qoriq *ptp_qoriq = data;
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struct ptp_qoriq_registers *regs = &ptp_qoriq->regs;
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u32 ctrl;
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ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl);
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if (val == 0)
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ctrl &= ~PP1L;
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else
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ctrl |= PP1L;
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ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, ctrl);
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return 0;
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}
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DEFINE_DEBUGFS_ATTRIBUTE(ptp_qoriq_fiper1_fops, ptp_qoriq_fiper1_lpbk_get,
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ptp_qoriq_fiper1_lpbk_set, "%llu\n");
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static int ptp_qoriq_fiper2_lpbk_get(void *data, u64 *val)
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{
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struct ptp_qoriq *ptp_qoriq = data;
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struct ptp_qoriq_registers *regs = &ptp_qoriq->regs;
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u32 ctrl;
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ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl);
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*val = ctrl & PP2L ? 1 : 0;
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return 0;
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}
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static int ptp_qoriq_fiper2_lpbk_set(void *data, u64 val)
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{
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struct ptp_qoriq *ptp_qoriq = data;
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struct ptp_qoriq_registers *regs = &ptp_qoriq->regs;
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u32 ctrl;
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ctrl = ptp_qoriq->read(®s->ctrl_regs->tmr_ctrl);
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if (val == 0)
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ctrl &= ~PP2L;
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else
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ctrl |= PP2L;
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ptp_qoriq->write(®s->ctrl_regs->tmr_ctrl, ctrl);
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return 0;
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}
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DEFINE_DEBUGFS_ATTRIBUTE(ptp_qoriq_fiper2_fops, ptp_qoriq_fiper2_lpbk_get,
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ptp_qoriq_fiper2_lpbk_set, "%llu\n");
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void ptp_qoriq_create_debugfs(struct ptp_qoriq *ptp_qoriq)
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{
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struct dentry *root;
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root = debugfs_create_dir(dev_name(ptp_qoriq->dev), NULL);
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if (IS_ERR(root))
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return;
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if (!root)
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goto err_root;
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ptp_qoriq->debugfs_root = root;
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if (!debugfs_create_file_unsafe("fiper1-loopback", 0600, root,
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ptp_qoriq, &ptp_qoriq_fiper1_fops))
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goto err_node;
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if (!debugfs_create_file_unsafe("fiper2-loopback", 0600, root,
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ptp_qoriq, &ptp_qoriq_fiper2_fops))
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goto err_node;
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return;
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err_node:
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debugfs_remove_recursive(root);
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ptp_qoriq->debugfs_root = NULL;
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err_root:
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dev_err(ptp_qoriq->dev, "failed to initialize debugfs\n");
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}
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void ptp_qoriq_remove_debugfs(struct ptp_qoriq *ptp_qoriq)
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{
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debugfs_remove_recursive(ptp_qoriq->debugfs_root);
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ptp_qoriq->debugfs_root = NULL;
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}
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