[PATCH 3/8] ARM: sa1100/assabet: convert to generic CF sockets
Russell King
rmk+kernel at armlinux.org.uk
Fri Mar 16 12:56:50 PDT 2018
Convert Assabet to use the generic CF socket support.
Signed-off-by: Russell King <rmk+kernel at armlinux.org.uk>
---
arch/arm/mach-sa1100/Kconfig | 2 +
arch/arm/mach-sa1100/assabet.c | 39 ++++++++++-
arch/arm/mach-sa1100/include/mach/assabet.h | 6 --
drivers/pcmcia/Makefile | 1 -
drivers/pcmcia/sa1100_assabet.c | 100 ----------------------------
drivers/pcmcia/sa1100_generic.c | 3 -
drivers/pcmcia/sa1100_generic.h | 1 -
7 files changed, 40 insertions(+), 112 deletions(-)
delete mode 100644 drivers/pcmcia/sa1100_assabet.c
diff --git a/arch/arm/mach-sa1100/Kconfig b/arch/arm/mach-sa1100/Kconfig
index 07df3a59b13f..5ca5847d89cc 100644
--- a/arch/arm/mach-sa1100/Kconfig
+++ b/arch/arm/mach-sa1100/Kconfig
@@ -6,6 +6,8 @@ config SA1100_ASSABET
bool "Assabet"
select ARM_SA1110_CPUFREQ
select GPIO_REG
+ select REGULATOR
+ select REGULATOR_FIXED_VOLTAGE
help
Say Y here if you are using the Intel(R) StrongARM(R) SA-1110
Microprocessor Development Board (also known as the Assabet).
diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index f68241d995f2..575ec085cffa 100644
--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -14,8 +14,11 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/gpio/gpio-reg.h>
+#include <linux/gpio/machine.h>
#include <linux/ioport.h>
#include <linux/platform_data/sa11x0-serial.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
#include <linux/serial_core.h>
#include <linux/platform_device.h>
#include <linux/mfd/ucb1x00.h>
@@ -445,6 +448,29 @@ static struct resource neponset_resources[] = {
};
#endif
+static struct gpiod_lookup_table assabet_cf_gpio_table = {
+ .dev_id = "sa11x0-pcmcia.1",
+ .table = {
+ GPIO_LOOKUP("gpio", 21, "ready", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio", 22, "detect", GPIO_ACTIVE_LOW),
+ GPIO_LOOKUP("gpio", 24, "bvd2", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("gpio", 25, "bvd1", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("assabet", 1, "reset", GPIO_ACTIVE_HIGH),
+ GPIO_LOOKUP("assabet", 7, "bus-enable", GPIO_ACTIVE_LOW),
+ { },
+ },
+};
+
+static struct regulator_consumer_supply assabet_cf_vcc_consumers[] = {
+ REGULATOR_SUPPLY("vcc", "sa11x0-pcmcia.1"),
+};
+
+static struct fixed_voltage_config assabet_cf_vcc_pdata __initdata = {
+ .supply_name = "cf-power",
+ .microvolts = 3300000,
+ .enable_high = 1,
+};
+
static void __init assabet_init(void)
{
/*
@@ -490,6 +516,11 @@ static void __init assabet_init(void)
platform_device_register_simple("neponset", 0,
neponset_resources, ARRAY_SIZE(neponset_resources));
#endif
+ } else {
+ sa11x0_register_fixed_regulator(0, &assabet_cf_vcc_pdata,
+ assabet_cf_vcc_consumers,
+ ARRAY_SIZE(assabet_cf_vcc_consumers));
+
}
#ifndef ASSABET_PAL_VIDEO
@@ -501,6 +532,9 @@ static void __init assabet_init(void)
ARRAY_SIZE(assabet_flash_resources));
sa11x0_register_irda(&assabet_irda_data);
sa11x0_register_mcp(&assabet_mcp_data);
+
+ if (!machine_has_neponset())
+ sa11x0_register_pcmcia(1, &assabet_cf_gpio_table);
}
/*
@@ -768,6 +802,7 @@ fs_initcall(assabet_leds_init);
void __init assabet_init_irq(void)
{
+ unsigned int assabet_gpio_base;
u32 def_val;
sa1100_init_irq();
@@ -782,7 +817,9 @@ void __init assabet_init_irq(void)
*
* This must precede any driver calls to BCR_set() or BCR_clear().
*/
- assabet_init_gpio((void *)&ASSABET_BCR, def_val);
+ assabet_gpio_base = assabet_init_gpio((void *)&ASSABET_BCR, def_val);
+
+ assabet_cf_vcc_pdata.gpio = assabet_gpio_base + 0;
}
MACHINE_START(ASSABET, "Intel-Assabet")
diff --git a/arch/arm/mach-sa1100/include/mach/assabet.h b/arch/arm/mach-sa1100/include/mach/assabet.h
index 558b45323a2d..641a961653af 100644
--- a/arch/arm/mach-sa1100/include/mach/assabet.h
+++ b/arch/arm/mach-sa1100/include/mach/assabet.h
@@ -96,10 +96,4 @@ extern void assabet_uda1341_reset(int set);
#define ASSABET_GPIO_BATT_LOW GPIO_GPIO (26) /* Low battery */
#define ASSABET_GPIO_RCLK GPIO_GPIO (26) /* CCLK/2 */
-/* These are gpiolib GPIO numbers, not bitmasks */
-#define ASSABET_GPIO_CF_IRQ 21 /* CF IRQ */
-#define ASSABET_GPIO_CF_CD 22 /* CF CD */
-#define ASSABET_GPIO_CF_BVD2 24 /* CF BVD / IOSPKR */
-#define ASSABET_GPIO_CF_BVD1 25 /* CF BVD / IOSTSCHG */
-
#endif
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index e7dae16b9a43..130a06649b41 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -46,7 +46,6 @@ sa1111_cs-$(CONFIG_SA1100_JORNADA720) += sa1111_jornada720.o
sa1111_cs-$(CONFIG_ARCH_LUBBOCK) += sa1111_lubbock.o
sa1100_cs-y += sa1100_generic.o
-sa1100_cs-$(CONFIG_SA1100_ASSABET) += sa1100_assabet.o
sa1100_cs-$(CONFIG_SA1100_CERF) += sa1100_cerf.o
sa1100_cs-$(CONFIG_SA1100_COLLIE) += pxa2xx_sharpsl.o
sa1100_cs-$(CONFIG_SA1100_H3100) += sa1100_h3600.o
diff --git a/drivers/pcmcia/sa1100_assabet.c b/drivers/pcmcia/sa1100_assabet.c
deleted file mode 100644
index 78ad2bba76db..000000000000
--- a/drivers/pcmcia/sa1100_assabet.c
+++ /dev/null
@@ -1,100 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * drivers/pcmcia/sa1100_assabet.c
- *
- * PCMCIA implementation routines for Assabet
- *
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-#include <linux/init.h>
-#include <linux/gpio.h>
-
-#include <asm/mach-types.h>
-#include <mach/assabet.h>
-
-#include "sa1100_generic.h"
-
-static int assabet_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
-{
- skt->stat[SOC_STAT_CD].gpio = ASSABET_GPIO_CF_CD;
- skt->stat[SOC_STAT_CD].name = "CF CD";
- skt->stat[SOC_STAT_BVD1].gpio = ASSABET_GPIO_CF_BVD1;
- skt->stat[SOC_STAT_BVD1].name = "CF BVD1";
- skt->stat[SOC_STAT_BVD2].gpio = ASSABET_GPIO_CF_BVD2;
- skt->stat[SOC_STAT_BVD2].name = "CF BVD2";
- skt->stat[SOC_STAT_RDY].gpio = ASSABET_GPIO_CF_IRQ;
- skt->stat[SOC_STAT_RDY].name = "CF RDY";
-
- return 0;
-}
-
-static int
-assabet_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, const socket_state_t *state)
-{
- unsigned int mask;
-
- switch (state->Vcc) {
- case 0:
- mask = 0;
- break;
-
- case 50:
- printk(KERN_WARNING "%s(): CS asked for 5V, applying 3.3V...\n",
- __func__);
-
- case 33: /* Can only apply 3.3V to the CF slot. */
- mask = ASSABET_BCR_CF_PWR;
- break;
-
- default:
- printk(KERN_ERR "%s(): unrecognized Vcc %u\n", __func__,
- state->Vcc);
- return -1;
- }
-
- /* Silently ignore Vpp, speaker enable. */
-
- if (state->flags & SS_RESET)
- mask |= ASSABET_BCR_CF_RST;
- if (!(state->flags & SS_OUTPUT_ENA))
- mask |= ASSABET_BCR_CF_BUS_OFF;
-
- ASSABET_BCR_frob(ASSABET_BCR_CF_RST | ASSABET_BCR_CF_PWR |
- ASSABET_BCR_CF_BUS_OFF, mask);
-
- return 0;
-}
-
-/*
- * Disable card status IRQs on suspend.
- */
-static void assabet_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt)
-{
- /*
- * Tristate the CF bus signals. Also assert CF
- * reset as per user guide page 4-11.
- */
- ASSABET_BCR_set(ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_CF_RST);
-}
-
-static struct pcmcia_low_level assabet_pcmcia_ops = {
- .owner = THIS_MODULE,
- .hw_init = assabet_pcmcia_hw_init,
- .socket_state = soc_common_cf_socket_state,
- .configure_socket = assabet_pcmcia_configure_socket,
- .socket_suspend = assabet_pcmcia_socket_suspend,
-};
-
-int pcmcia_assabet_init(struct device *dev)
-{
- int ret = -ENODEV;
-
- if (machine_is_assabet() && !machine_has_neponset())
- ret = sa11xx_drv_pcmcia_probe(dev, &assabet_pcmcia_ops, 1, 1);
-
- return ret;
-}
diff --git a/drivers/pcmcia/sa1100_generic.c b/drivers/pcmcia/sa1100_generic.c
index 324e3e631353..1987d94361e9 100644
--- a/drivers/pcmcia/sa1100_generic.c
+++ b/drivers/pcmcia/sa1100_generic.c
@@ -98,9 +98,6 @@ static struct pcmcia_low_level sa11x0_cf_ops = {
int __init pcmcia_collie_init(struct device *dev);
static int (*sa11x0_pcmcia_legacy_hw_init[])(struct device *dev) = {
-#ifdef CONFIG_SA1100_ASSABET
- pcmcia_assabet_init,
-#endif
#ifdef CONFIG_SA1100_CERF
pcmcia_cerf_init,
#endif
diff --git a/drivers/pcmcia/sa1100_generic.h b/drivers/pcmcia/sa1100_generic.h
index a5f1f1dd63cb..597c796f7dad 100644
--- a/drivers/pcmcia/sa1100_generic.h
+++ b/drivers/pcmcia/sa1100_generic.h
@@ -6,7 +6,6 @@
* Declaration for all machine specific init/exit functions.
*/
extern int pcmcia_adsbitsy_init(struct device *);
-extern int pcmcia_assabet_init(struct device *);
extern int pcmcia_badge4_init(struct device *);
extern int pcmcia_cerf_init(struct device *);
extern int pcmcia_flexanet_init(struct device *);
--
2.7.4
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