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authorRussell King <rmk+kernel@armlinux.org.uk>2016-08-31 08:49:47 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2018-03-24 14:17:06 +0000
commit0920ca103f8d8b53619bb69fa34185013f448ca2 (patch)
tree53dfa28879453d04138762d4346b5287285f3233 /arch/arm/mach-sa1100
parent7be893aa2d6a11d3ff16fe5f614cb94d1cfc9149 (diff)
ARM: sa1100: provide infrastructure to support generic CF sockets
Provide the SoC-level infrastructure to support the generic CF sockets. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mach-sa1100')
-rw-r--r--arch/arm/mach-sa1100/clock.c2
-rw-r--r--arch/arm/mach-sa1100/generic.c44
-rw-r--r--arch/arm/mach-sa1100/generic.h8
3 files changed, 53 insertions, 1 deletions
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c
index b2eb3d232e39..6199e87447ca 100644
--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -163,6 +163,8 @@ static struct clk_lookup sa11xx_clkregs[] = {
CLKDEV_INIT("sa1100-rtc", NULL, NULL),
CLKDEV_INIT("sa11x0-fb", NULL, &clk_cpu),
CLKDEV_INIT("sa11x0-pcmcia", NULL, &clk_cpu),
+ CLKDEV_INIT("sa11x0-pcmcia.0", NULL, &clk_cpu),
+ CLKDEV_INIT("sa11x0-pcmcia.1", NULL, &clk_cpu),
/* sa1111 names devices using internal offsets, PCMCIA is at 0x1800 */
CLKDEV_INIT("1800", NULL, &clk_cpu),
CLKDEV_INIT(NULL, "OSTIMER0", &clk_36864),
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 2eb00691b07d..7167ddf84a0e 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -10,6 +10,7 @@
* published by the Free Software Foundation.
*/
#include <linux/gpio.h>
+#include <linux/gpio/machine.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
@@ -20,6 +21,8 @@
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/reboot.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
#include <linux/irqchip/irq-sa11x0.h>
#include <video/sa1100fb.h>
@@ -232,11 +235,20 @@ void sa11x0_register_lcd(struct sa1100fb_mach_info *inf)
sa11x0_register_device(&sa11x0fb_device, inf);
}
+static bool sa11x0pcmcia_legacy = true;
static struct platform_device sa11x0pcmcia_device = {
.name = "sa11x0-pcmcia",
.id = -1,
};
+void sa11x0_register_pcmcia(int socket, struct gpiod_lookup_table *table)
+{
+ if (table)
+ gpiod_add_lookup_table(table);
+ platform_device_register_simple("sa11x0-pcmcia", socket, NULL, 0);
+ sa11x0pcmcia_legacy = false;
+}
+
static struct platform_device sa11x0mtd_device = {
.name = "sa1100-mtd",
.id = -1,
@@ -311,7 +323,6 @@ static struct platform_device *sa11x0_devices[] __initdata = {
&sa11x0uart1_device,
&sa11x0uart3_device,
&sa11x0ssp_device,
- &sa11x0pcmcia_device,
&sa11x0rtc_device,
&sa11x0dma_device,
};
@@ -319,6 +330,12 @@ static struct platform_device *sa11x0_devices[] __initdata = {
static int __init sa1100_init(void)
{
pm_power_off = sa1100_power_off;
+
+ if (sa11x0pcmcia_legacy)
+ platform_device_register(&sa11x0pcmcia_device);
+
+ regulator_has_full_constraints();
+
return platform_add_devices(sa11x0_devices, ARRAY_SIZE(sa11x0_devices));
}
@@ -329,6 +346,31 @@ void __init sa11x0_init_late(void)
sa11x0_pm_init();
}
+int __init sa11x0_register_fixed_regulator(int n,
+ struct fixed_voltage_config *cfg,
+ struct regulator_consumer_supply *supplies, unsigned num_supplies)
+{
+ struct regulator_init_data *id;
+
+ cfg->init_data = id = kzalloc(sizeof(*cfg->init_data), GFP_KERNEL);
+ if (!cfg->init_data)
+ return -ENOMEM;
+
+ if (cfg->gpio < 0)
+ id->constraints.always_on = 1;
+ id->constraints.name = cfg->supply_name;
+ id->constraints.min_uV = cfg->microvolts;
+ id->constraints.max_uV = cfg->microvolts;
+ id->constraints.valid_modes_mask = REGULATOR_MODE_NORMAL;
+ id->constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS;
+ id->consumer_supplies = supplies;
+ id->num_consumer_supplies = num_supplies;
+
+ platform_device_register_resndata(NULL, "reg-fixed-voltage", n,
+ NULL, 0, cfg, sizeof(*cfg));
+ return 0;
+}
+
/*
* Common I/O mapping:
*
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index 97502922a15d..5f3cb52fa6ab 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -47,3 +47,11 @@ static inline int sa11x0_pm_init(void) { return 0; }
#endif
int sa11xx_clk_init(void);
+
+struct gpiod_lookup_table;
+void sa11x0_register_pcmcia(int socket, struct gpiod_lookup_table *);
+
+struct fixed_voltage_config;
+struct regulator_consumer_supply;
+int sa11x0_register_fixed_regulator(int n, struct fixed_voltage_config *cfg,
+ struct regulator_consumer_supply *supplies, unsigned num_supplies);