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-rw-r--r--arch/arm/mach-omap1/Kconfig2
-rw-r--r--arch/arm/mach-omap1/board-ams-delta.c116
-rw-r--r--arch/arm/plat-omap/include/plat/board-ams-delta.h1
-rw-r--r--drivers/input/serio/ams_delta_serio.c2
-rw-r--r--drivers/mtd/nand/ams-delta.c2
-rw-r--r--drivers/video/omap/lcd_ams_delta.c2
-rw-r--r--sound/soc/omap/ams-delta.c32
7 files changed, 101 insertions, 56 deletions
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index 5b1edbae6893..4b6a774606cb 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -157,6 +157,8 @@ config MACH_AMS_DELTA
select FIQ
select GPIO_GENERIC_PLATFORM
select LEDS_GPIO_REGISTER
+ select REGULATOR
+ select REGULATOR_FIXED_VOLTAGE
help
Support for the Amstrad E3 (codename Delta) videophone. Say Y here
if you have such a device.
diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c
index 87b13039f936..cb6afe670468 100644
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -19,6 +19,9 @@
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
#include <linux/serial_8250.h>
#include <linux/export.h>
@@ -150,11 +153,11 @@ static struct map_desc ams_delta_io_desc[] __initdata = {
}
};
-static struct omap_lcd_config ams_delta_lcd_config = {
+static struct omap_lcd_config ams_delta_lcd_config __initdata = {
.ctrl_name = "internal",
};
-static struct omap_usb_config ams_delta_usb_config __initdata = {
+static struct omap_usb_config ams_delta_usb_config = {
.register_host = 1,
.hmc_mode = 16,
.pins[0] = 2,
@@ -167,7 +170,7 @@ static struct omap_board_config_kernel ams_delta_config[] __initdata = {
#define LATCH1_GPIO_BASE 232
#define LATCH1_NGPIO 8
-static struct resource latch1_resources[] __initconst = {
+static struct resource latch1_resources[] = {
[0] = {
.name = "dat",
.start = LATCH1_PHYS,
@@ -176,7 +179,7 @@ static struct resource latch1_resources[] __initconst = {
},
};
-static struct bgpio_pdata latch1_pdata __initconst = {
+static struct bgpio_pdata latch1_pdata = {
.base = LATCH1_GPIO_BASE,
.ngpio = LATCH1_NGPIO,
};
@@ -191,7 +194,7 @@ static struct platform_device latch1_gpio_device = {
},
};
-static struct resource latch2_resources[] __initconst = {
+static struct resource latch2_resources[] = {
[0] = {
.name = "dat",
.start = LATCH2_PHYS,
@@ -200,7 +203,7 @@ static struct resource latch2_resources[] __initconst = {
},
};
-static struct bgpio_pdata latch2_pdata __initconst = {
+static struct bgpio_pdata latch2_pdata = {
.base = AMS_DELTA_LATCH2_GPIO_BASE,
.ngpio = AMS_DELTA_LATCH2_NGPIO,
};
@@ -215,7 +218,7 @@ static struct platform_device latch2_gpio_device = {
},
};
-static struct gpio latch_gpios[] __initconst = {
+static const struct gpio latch_gpios[] __initconst = {
{
.gpio = LATCH1_GPIO_BASE + 6,
.flags = GPIOF_OUT_INIT_LOW,
@@ -237,11 +240,6 @@ static struct gpio latch_gpios[] __initconst = {
.label = "scard_cmdvcc",
},
{
- .gpio = AMS_DELTA_GPIO_PIN_MODEM_NRESET,
- .flags = GPIOF_OUT_INIT_LOW,
- .label = "modem_nreset",
- },
- {
.gpio = AMS_DELTA_GPIO_PIN_MODEM_CODEC,
.flags = GPIOF_OUT_INIT_LOW,
.label = "modem_codec",
@@ -258,6 +256,44 @@ static struct gpio latch_gpios[] __initconst = {
},
};
+static struct regulator_consumer_supply modem_nreset_consumers[] = {
+ REGULATOR_SUPPLY("RESET#", "serial8250.1"),
+ REGULATOR_SUPPLY("POR", "cx20442-codec"),
+};
+
+static struct regulator_init_data modem_nreset_data = {
+ .constraints = {
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(modem_nreset_consumers),
+ .consumer_supplies = modem_nreset_consumers,
+};
+
+static struct fixed_voltage_config modem_nreset_config = {
+ .supply_name = "modem_nreset",
+ .microvolts = 3300000,
+ .gpio = AMS_DELTA_GPIO_PIN_MODEM_NRESET,
+ .startup_delay = 25000,
+ .enable_high = 1,
+ .enabled_at_boot = 1,
+ .init_data = &modem_nreset_data,
+};
+
+static struct platform_device modem_nreset_device = {
+ .name = "reg-fixed-voltage",
+ .id = -1,
+ .dev = {
+ .platform_data = &modem_nreset_config,
+ },
+};
+
+struct modem_private_data {
+ struct regulator *regulator;
+};
+
+static struct modem_private_data modem_priv;
+
void ams_delta_latch_write(int base, int ngpio, u16 mask, u16 value)
{
int bit = 0;
@@ -266,7 +302,8 @@ void ams_delta_latch_write(int base, int ngpio, u16 mask, u16 value)
for (; bit < ngpio; bit++, bitpos = bitpos << 1) {
if (!(mask & bitpos))
continue;
- gpio_set_value(base + bit, (value & bitpos) != 0);
+ else
+ gpio_set_value(base + bit, (value & bitpos) != 0);
}
}
EXPORT_SYMBOL(ams_delta_latch_write);
@@ -300,7 +337,7 @@ static const struct matrix_keymap_data ams_delta_keymap_data = {
.keymap_size = ARRAY_SIZE(ams_delta_keymap),
};
-static struct omap_kp_platform_data ams_delta_kp_data __initdata = {
+static struct omap_kp_platform_data ams_delta_kp_data = {
.rows = 8,
.cols = 8,
.keymap_data = &ams_delta_keymap_data,
@@ -322,7 +359,7 @@ static struct platform_device ams_delta_lcd_device = {
.id = -1,
};
-static struct gpio_led gpio_leds[] __initconst = {
+static const struct gpio_led gpio_leds[] __initconst = {
{
.name = "camera",
.gpio = LATCH1_GPIO_BASE + 0,
@@ -358,7 +395,7 @@ static struct gpio_led gpio_leds[] __initconst = {
},
};
-static struct gpio_led_platform_data leds_pdata __initconst = {
+static const struct gpio_led_platform_data leds_pdata __initconst = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
@@ -415,7 +452,7 @@ static struct platform_device *ams_delta_devices[] __initdata = {
&ams_delta_camera_device,
};
-static struct platform_device *late_devices[] __initconst = {
+static struct platform_device *late_devices[] __initdata = {
&ams_delta_nand_device,
&ams_delta_lcd_device,
};
@@ -459,6 +496,22 @@ static void __init ams_delta_init(void)
omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
}
+static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
+{
+ struct modem_private_data *priv = port->private_data;
+
+ if (IS_ERR(priv->regulator))
+ return;
+
+ if (state == old)
+ return;
+
+ if (state == 0)
+ regulator_enable(priv->regulator);
+ else if (old == 0)
+ regulator_disable(priv->regulator);
+}
+
static struct plat_serial8250_port ams_delta_modem_ports[] = {
{
.membase = IOMEM(MODEM_VIRT),
@@ -469,6 +522,8 @@ static struct plat_serial8250_port ams_delta_modem_ports[] = {
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = BASE_BAUD * 16,
+ .pm = modem_pm,
+ .private_data = &modem_priv,
},
{ },
};
@@ -496,6 +551,12 @@ static int __init late_init(void)
platform_add_devices(late_devices, ARRAY_SIZE(late_devices));
+ err = platform_device_register(&modem_nreset_device);
+ if (err) {
+ pr_err("Couldn't register the modem regulator device\n");
+ return err;
+ }
+
omap_cfg_reg(M14_1510_GPIO2);
ams_delta_modem_ports[0].irq =
gpio_to_irq(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
@@ -507,15 +568,30 @@ static int __init late_init(void)
}
gpio_direction_input(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
- ams_delta_latch2_write(
- AMS_DELTA_LATCH2_MODEM_NRESET | AMS_DELTA_LATCH2_MODEM_CODEC,
- AMS_DELTA_LATCH2_MODEM_NRESET | AMS_DELTA_LATCH2_MODEM_CODEC);
+ /* Initialize the modem_nreset regulator consumer before use */
+ modem_priv.regulator = ERR_PTR(-ENODEV);
+
+ ams_delta_latch2_write(AMS_DELTA_LATCH2_MODEM_CODEC,
+ AMS_DELTA_LATCH2_MODEM_CODEC);
err = platform_device_register(&ams_delta_modem_device);
if (err)
goto gpio_free;
+
+ /*
+ * Once the modem device is registered, the modem_nreset
+ * regulator can be requested on behalf of that device.
+ */
+ modem_priv.regulator = regulator_get(&ams_delta_modem_device.dev,
+ "RESET#");
+ if (IS_ERR(modem_priv.regulator)) {
+ err = PTR_ERR(modem_priv.regulator);
+ goto unregister;
+ }
return 0;
+unregister:
+ platform_device_unregister(&ams_delta_modem_device);
gpio_free:
gpio_free(AMS_DELTA_GPIO_PIN_MODEM_IRQ);
return err;
diff --git a/arch/arm/plat-omap/include/plat/board-ams-delta.h b/arch/arm/plat-omap/include/plat/board-ams-delta.h
index 027e79eead5e..ad6f865d1f16 100644
--- a/arch/arm/plat-omap/include/plat/board-ams-delta.h
+++ b/arch/arm/plat-omap/include/plat/board-ams-delta.h
@@ -30,7 +30,6 @@
#define AMD_DELTA_LATCH2_SCARD_RSTIN 0x0400
#define AMD_DELTA_LATCH2_SCARD_CMDVCC 0x0800
-#define AMS_DELTA_LATCH2_MODEM_NRESET 0x1000
#define AMS_DELTA_LATCH2_MODEM_CODEC 0x2000
#define AMS_DELTA_GPIO_PIN_KEYBRD_DATA 0
diff --git a/drivers/input/serio/ams_delta_serio.c b/drivers/input/serio/ams_delta_serio.c
index 0571e2ec358b..bd5b10eeeb40 100644
--- a/drivers/input/serio/ams_delta_serio.c
+++ b/drivers/input/serio/ams_delta_serio.c
@@ -103,7 +103,7 @@ static void ams_delta_serio_close(struct serio *serio)
gpio_set_value(AMS_DELTA_GPIO_PIN_KEYBRD_PWR, 0);
}
-static struct gpio ams_delta_gpios[] __initconst_or_module = {
+static const struct gpio ams_delta_gpios[] __initconst_or_module = {
{
.gpio = AMS_DELTA_GPIO_PIN_KEYBRD_DATA,
.flags = GPIOF_DIR_IN,
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index 85934dc8546f..73416951f4c1 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -145,7 +145,7 @@ static int ams_delta_nand_ready(struct mtd_info *mtd)
return gpio_get_value(AMS_DELTA_GPIO_PIN_NAND_RB);
}
-static struct gpio _mandatory_gpio[] __initconst_or_module = {
+static const struct gpio _mandatory_gpio[] = {
{
.gpio = AMS_DELTA_GPIO_PIN_NAND_NCE,
.flags = GPIOF_OUT_INIT_HIGH,
diff --git a/drivers/video/omap/lcd_ams_delta.c b/drivers/video/omap/lcd_ams_delta.c
index 0e71e2898b18..d3a311327227 100644
--- a/drivers/video/omap/lcd_ams_delta.c
+++ b/drivers/video/omap/lcd_ams_delta.c
@@ -99,7 +99,7 @@ static struct lcd_ops ams_delta_lcd_ops = {
/* omapfb panel section */
-static struct gpio _gpios[] __initconst_or_module = {
+static const struct gpio _gpios[] = {
{
.gpio = AMS_DELTA_GPIO_PIN_LCD_VBLEN,
.flags = GPIOF_OUT_INIT_LOW,
diff --git a/sound/soc/omap/ams-delta.c b/sound/soc/omap/ams-delta.c
index da6e005c1c41..f610260065ba 100644
--- a/sound/soc/omap/ams-delta.c
+++ b/sound/soc/omap/ams-delta.c
@@ -426,29 +426,6 @@ static struct snd_soc_ops ams_delta_ops = {
};
-/* Board specific codec bias level control */
-static int ams_delta_set_bias_level(struct snd_soc_card *card,
- struct snd_soc_dapm_context *dapm,
- enum snd_soc_bias_level level)
-{
- switch (level) {
- case SND_SOC_BIAS_ON:
- case SND_SOC_BIAS_PREPARE:
- case SND_SOC_BIAS_STANDBY:
- if (card->dapm.bias_level == SND_SOC_BIAS_OFF)
- ams_delta_latch2_write(AMS_DELTA_LATCH2_MODEM_NRESET,
- AMS_DELTA_LATCH2_MODEM_NRESET);
- break;
- case SND_SOC_BIAS_OFF:
- if (card->dapm.bias_level != SND_SOC_BIAS_OFF)
- ams_delta_latch2_write(AMS_DELTA_LATCH2_MODEM_NRESET,
- 0);
- }
- card->dapm.bias_level = level;
-
- return 0;
-}
-
/* Digital mute implemented using modem/CPU multiplexer.
* Shares hardware with codec config pulse generation */
static bool ams_delta_muted = 1;
@@ -512,9 +489,6 @@ static int ams_delta_cx20442_init(struct snd_soc_pcm_runtime *rtd)
ams_delta_ops.shutdown = ams_delta_shutdown;
}
- /* Set codec bias level */
- ams_delta_set_bias_level(card, dapm, SND_SOC_BIAS_STANDBY);
-
/* Add hook switch - can be used to control the codec from userspace
* even if line discipline fails */
ret = snd_soc_jack_new(rtd->codec, "hook_switch",
@@ -598,7 +572,6 @@ static struct snd_soc_card ams_delta_audio_card = {
.owner = THIS_MODULE,
.dai_link = &ams_delta_dai_link,
.num_links = 1,
- .set_bias_level = ams_delta_set_bias_level,
};
/* Module init/exit */
@@ -647,11 +620,6 @@ static void __exit ams_delta_module_exit(void)
ARRAY_SIZE(ams_delta_hook_switch_gpios),
ams_delta_hook_switch_gpios);
- /* Keep modem power on */
- ams_delta_set_bias_level(&ams_delta_audio_card,
- &ams_delta_audio_card.rtd[0].codec->dapm,
- SND_SOC_BIAS_STANDBY);
-
platform_device_unregister(cx20442_platform_device);
platform_device_unregister(ams_delta_audio_platform_device);
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-15 18:09:28 +0200