ARM: sa1100/assabet: convert to generic CF sockets

Convert Assabet to use the generic CF socket support.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

7 files changed, 40 insertions, 112 deletions

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 *);