master.c (26d970225d876437287ec47a60cf4a07fe08733d) master.c (c5778ca49a19420c67dbeff0744a3b3b75ef4e1a)
1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright(c) 2019-2020 Intel Corporation.
3
4#include <linux/device.h>
5#include <linux/acpi.h>
6#include <linux/pm_runtime.h>
7#include <linux/soundwire/sdw.h>
8#include <linux/soundwire/sdw_type.h>
9#include "bus.h"
10
1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright(c) 2019-2020 Intel Corporation.
3
4#include <linux/device.h>
5#include <linux/acpi.h>
6#include <linux/pm_runtime.h>
7#include <linux/soundwire/sdw.h>
8#include <linux/soundwire/sdw_type.h>
9#include "bus.h"
10
11/*
12 * The sysfs for properties reflects the MIPI description as given
13 * in the MIPI DisCo spec
14 *
15 * Base file is:
16 * sdw-master-N
17 * |---- revision
18 * |---- clk_stop_modes
19 * |---- max_clk_freq
20 * |---- clk_freq
21 * |---- clk_gears
22 * |---- default_row
23 * |---- default_col
24 * |---- dynamic_shape
25 * |---- err_threshold
26 */
27
28#define sdw_master_attr(field, format_string) \
29static ssize_t field##_show(struct device *dev, \
30 struct device_attribute *attr, \
31 char *buf) \
32{ \
33 struct sdw_master_device *md = dev_to_sdw_master_device(dev); \
34 return sprintf(buf, format_string, md->bus->prop.field); \
35} \
36static DEVICE_ATTR_RO(field)
37
38sdw_master_attr(revision, "0x%x\n");
39sdw_master_attr(clk_stop_modes, "0x%x\n");
40sdw_master_attr(max_clk_freq, "%d\n");
41sdw_master_attr(default_row, "%d\n");
42sdw_master_attr(default_col, "%d\n");
43sdw_master_attr(default_frame_rate, "%d\n");
44sdw_master_attr(dynamic_frame, "%d\n");
45sdw_master_attr(err_threshold, "%d\n");
46
47static ssize_t clock_frequencies_show(struct device *dev,
48 struct device_attribute *attr, char *buf)
49{
50 struct sdw_master_device *md = dev_to_sdw_master_device(dev);
51 ssize_t size = 0;
52 int i;
53
54 for (i = 0; i < md->bus->prop.num_clk_freq; i++)
55 size += sprintf(buf + size, "%8d ",
56 md->bus->prop.clk_freq[i]);
57 size += sprintf(buf + size, "\n");
58
59 return size;
60}
61static DEVICE_ATTR_RO(clock_frequencies);
62
63static ssize_t clock_gears_show(struct device *dev,
64 struct device_attribute *attr, char *buf)
65{
66 struct sdw_master_device *md = dev_to_sdw_master_device(dev);
67 ssize_t size = 0;
68 int i;
69
70 for (i = 0; i < md->bus->prop.num_clk_gears; i++)
71 size += sprintf(buf + size, "%8d ",
72 md->bus->prop.clk_gears[i]);
73 size += sprintf(buf + size, "\n");
74
75 return size;
76}
77static DEVICE_ATTR_RO(clock_gears);
78
79static struct attribute *master_node_attrs[] = {
80 &dev_attr_revision.attr,
81 &dev_attr_clk_stop_modes.attr,
82 &dev_attr_max_clk_freq.attr,
83 &dev_attr_default_row.attr,
84 &dev_attr_default_col.attr,
85 &dev_attr_default_frame_rate.attr,
86 &dev_attr_dynamic_frame.attr,
87 &dev_attr_err_threshold.attr,
88 &dev_attr_clock_frequencies.attr,
89 &dev_attr_clock_gears.attr,
90 NULL,
91};
92ATTRIBUTE_GROUPS(master_node);
93
11static void sdw_master_device_release(struct device *dev)
12{
13 struct sdw_master_device *md = dev_to_sdw_master_device(dev);
14
15 kfree(md);
16}
17
18static const struct dev_pm_ops master_dev_pm = {

--- 24 unchanged lines hidden (view full) ---

43
44 md = kzalloc(sizeof(*md), GFP_KERNEL);
45 if (!md)
46 return -ENOMEM;
47
48 md->dev.bus = &sdw_bus_type;
49 md->dev.type = &sdw_master_type;
50 md->dev.parent = parent;
94static void sdw_master_device_release(struct device *dev)
95{
96 struct sdw_master_device *md = dev_to_sdw_master_device(dev);
97
98 kfree(md);
99}
100
101static const struct dev_pm_ops master_dev_pm = {

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126
127 md = kzalloc(sizeof(*md), GFP_KERNEL);
128 if (!md)
129 return -ENOMEM;
130
131 md->dev.bus = &sdw_bus_type;
132 md->dev.type = &sdw_master_type;
133 md->dev.parent = parent;
134 md->dev.groups = master_node_groups;
51 md->dev.of_node = parent->of_node;
52 md->dev.fwnode = fwnode;
53 md->dev.dma_mask = parent->dma_mask;
54
55 dev_set_name(&md->dev, "sdw-master-%d", bus->id);
56
57 ret = device_register(&md->dev);
58 if (ret) {

--- 30 unchanged lines hidden --- 		135 md->dev.of_node = parent->of_node;
136 md->dev.fwnode = fwnode;
137 md->dev.dma_mask = parent->dma_mask;
138
139 dev_set_name(&md->dev, "sdw-master-%d", bus->id);
140
141 ret = device_register(&md->dev);
142 if (ret) {

--- 30 unchanged lines hidden ---