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