write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/mmc/host/of_mmc_spi.c
..
..
@@ -1,14 +1,10 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  * OpenFirmware bindings for the MMC-over-SPI driver
3
4
  *
4
5
  * Copyright (c) MontaVista Software, Inc. 2008.
5
6
  *
6
7
  * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
7
- *
8
- * This program is free software; you can redistribute  it and/or modify it
9
- * under  the terms of  the GNU General  Public License as published by the
10
- * Free Software Foundation;  either version 2 of the  License, or (at your
11
- * option) any later version.
12
8
  */
13
9
 
14
10
 #include <linux/kernel.h>
..
..
@@ -16,9 +12,7 @@
16
12
 #include <linux/device.h>
17
13
 #include <linux/slab.h>
18
14
 #include <linux/irq.h>
19
-#include <linux/gpio.h>
20
15
 #include <linux/of.h>
21
-#include <linux/of_gpio.h>
22
16
 #include <linux/of_irq.h>
23
17
 #include <linux/spi/spi.h>
24
18
 #include <linux/spi/mmc_spi.h>
..
..
@@ -32,15 +26,7 @@
32
26
 
33
27
 MODULE_LICENSE("GPL");
34
28
 
35
-enum {
36
-	CD_GPIO = 0,
37
-	WP_GPIO,
38
-	NUM_GPIOS,
39
-};
40
-
41
29
 struct of_mmc_spi {
42
-	int gpios[NUM_GPIOS];
43
-	bool alow_gpios[NUM_GPIOS];
44
30
 	int detect_irq;
45
31
 	struct mmc_spi_platform_data pdata;
46
32
 };
..
..
@@ -71,9 +57,6 @@
71
57
 	struct device *dev = &spi->dev;
72
58
 	struct device_node *np = dev->of_node;
73
59
 	struct of_mmc_spi *oms;
74
-	const __be32 *voltage_ranges;
75
-	int num_ranges;
76
-	int i;
77
60
 
78
61
 	if (dev->platform_data || !np)
79
62
 		return dev->platform_data;
..
..
@@ -82,49 +65,8 @@
82
65
 	if (!oms)
83
66
 		return NULL;
84
67
 
85
-	voltage_ranges = of_get_property(np, "voltage-ranges", &num_ranges);
86
-	num_ranges = num_ranges / sizeof(*voltage_ranges) / 2;
87
-	if (!voltage_ranges || !num_ranges) {
88
-		dev_err(dev, "OF: voltage-ranges unspecified\n");
68
+	if (mmc_of_parse_voltage(np, &oms->pdata.ocr_mask) <= 0)
89
69
 		goto err_ocr;
90
-	}
91
-
92
-	for (i = 0; i < num_ranges; i++) {
93
-		const int j = i * 2;
94
-		u32 mask;
95
-
96
-		mask = mmc_vddrange_to_ocrmask(be32_to_cpu(voltage_ranges[j]),
97
-					       be32_to_cpu(voltage_ranges[j + 1]));
98
-		if (!mask) {
99
-			dev_err(dev, "OF: voltage-range #%d is invalid\n", i);
100
-			goto err_ocr;
101
-		}
102
-		oms->pdata.ocr_mask |= mask;
103
-	}
104
-
105
-	for (i = 0; i < ARRAY_SIZE(oms->gpios); i++) {
106
-		enum of_gpio_flags gpio_flags;
107
-
108
-		oms->gpios[i] = of_get_gpio_flags(np, i, &gpio_flags);
109
-		if (!gpio_is_valid(oms->gpios[i]))
110
-			continue;
111
-
112
-		if (gpio_flags & OF_GPIO_ACTIVE_LOW)
113
-			oms->alow_gpios[i] = true;
114
-	}
115
-
116
-	if (gpio_is_valid(oms->gpios[CD_GPIO])) {
117
-		oms->pdata.cd_gpio = oms->gpios[CD_GPIO];
118
-		oms->pdata.flags |= MMC_SPI_USE_CD_GPIO;
119
-		if (!oms->alow_gpios[CD_GPIO])
120
-			oms->pdata.caps2 |= MMC_CAP2_CD_ACTIVE_HIGH;
121
-	}
122
-	if (gpio_is_valid(oms->gpios[WP_GPIO])) {
123
-		oms->pdata.ro_gpio = oms->gpios[WP_GPIO];
124
-		oms->pdata.flags |= MMC_SPI_USE_RO_GPIO;
125
-		if (!oms->alow_gpios[WP_GPIO])
126
-			oms->pdata.caps2 |= MMC_CAP2_RO_ACTIVE_HIGH;
127
-	}
128
70
 
129
71
 	oms->detect_irq = irq_of_parse_and_map(np, 0);
130
72
 	if (oms->detect_irq != 0) {