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path: root/drivers/mfd/tc6393xb.c
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Diffstat (limited to 'drivers/mfd/tc6393xb.c')
-rw-r--r--drivers/mfd/tc6393xb.c156
1 files changed, 93 insertions, 63 deletions
diff --git a/drivers/mfd/tc6393xb.c b/drivers/mfd/tc6393xb.c
index 81e2605ea10..e4c1c788b5f 100644
--- a/drivers/mfd/tc6393xb.c
+++ b/drivers/mfd/tc6393xb.c
@@ -19,8 +19,8 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
-#include <linux/fb.h>
#include <linux/clk.h>
+#include <linux/err.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tmio.h>
#include <linux/mfd/tc6393xb.h>
@@ -112,6 +112,7 @@ struct tc6393xb {
enum {
TC6393XB_CELL_NAND,
+ TC6393XB_CELL_MMC,
};
/*--------------------------------------------------------------------------*/
@@ -126,7 +127,7 @@ static int tc6393xb_nand_enable(struct platform_device *nand)
/* SMD buffer on */
dev_dbg(&dev->dev, "SMD buffer on\n");
- iowrite8(0xff, tc6393xb->scr + SCR_GPI_BCR(1));
+ tmio_iowrite8(0xff, tc6393xb->scr + SCR_GPI_BCR(1));
spin_unlock_irqrestore(&tc6393xb->lock, flags);
@@ -135,13 +136,13 @@ static int tc6393xb_nand_enable(struct platform_device *nand)
static struct resource __devinitdata tc6393xb_nand_resources[] = {
{
- .start = 0x0100,
- .end = 0x01ff,
+ .start = 0x1000,
+ .end = 0x1007,
.flags = IORESOURCE_MEM,
},
{
- .start = 0x1000,
- .end = 0x1007,
+ .start = 0x0100,
+ .end = 0x01ff,
.flags = IORESOURCE_MEM,
},
{
@@ -151,6 +152,24 @@ static struct resource __devinitdata tc6393xb_nand_resources[] = {
},
};
+static struct resource __devinitdata tc6393xb_mmc_resources[] = {
+ {
+ .start = 0x800,
+ .end = 0x9ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = 0x200,
+ .end = 0x2ff,
+ .flags = IORESOURCE_MEM,
+ },
+ {
+ .start = IRQ_TC6393_MMC,
+ .end = IRQ_TC6393_MMC,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
static struct mfd_cell __devinitdata tc6393xb_cells[] = {
[TC6393XB_CELL_NAND] = {
.name = "tmio-nand",
@@ -158,6 +177,11 @@ static struct mfd_cell __devinitdata tc6393xb_cells[] = {
.num_resources = ARRAY_SIZE(tc6393xb_nand_resources),
.resources = tc6393xb_nand_resources,
},
+ [TC6393XB_CELL_MMC] = {
+ .name = "tmio-mmc",
+ .num_resources = ARRAY_SIZE(tc6393xb_mmc_resources),
+ .resources = tc6393xb_mmc_resources,
+ },
};
/*--------------------------------------------------------------------------*/
@@ -168,7 +192,7 @@ static int tc6393xb_gpio_get(struct gpio_chip *chip,
struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
/* XXX: does dsr also represent inputs? */
- return ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8))
+ return tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8))
& TC_GPIO_BIT(offset);
}
@@ -178,13 +202,13 @@ static void __tc6393xb_gpio_set(struct gpio_chip *chip,
struct tc6393xb *tc6393xb = container_of(chip, struct tc6393xb, gpio);
u8 dsr;
- dsr = ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8));
+ dsr = tmio_ioread8(tc6393xb->scr + SCR_GPO_DSR(offset / 8));
if (value)
dsr |= TC_GPIO_BIT(offset);
else
dsr &= ~TC_GPIO_BIT(offset);
- iowrite8(dsr, tc6393xb->scr + SCR_GPO_DSR(offset / 8));
+ tmio_iowrite8(dsr, tc6393xb->scr + SCR_GPO_DSR(offset / 8));
}
static void tc6393xb_gpio_set(struct gpio_chip *chip,
@@ -209,9 +233,9 @@ static int tc6393xb_gpio_direction_input(struct gpio_chip *chip,
spin_lock_irqsave(&tc6393xb->lock, flags);
- doecr = ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
+ doecr = tmio_ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
doecr &= ~TC_GPIO_BIT(offset);
- iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
+ tmio_iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
spin_unlock_irqrestore(&tc6393xb->lock, flags);
@@ -229,9 +253,9 @@ static int tc6393xb_gpio_direction_output(struct gpio_chip *chip,
__tc6393xb_gpio_set(chip, offset, value);
- doecr = ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
+ doecr = tmio_ioread8(tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
doecr |= TC_GPIO_BIT(offset);
- iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
+ tmio_iowrite8(doecr, tc6393xb->scr + SCR_GPO_DOECR(offset / 8));
spin_unlock_irqrestore(&tc6393xb->lock, flags);
@@ -262,8 +286,8 @@ tc6393xb_irq(unsigned int irq, struct irq_desc *desc)
irq_base = tc6393xb->irq_base;
- while ((isr = ioread8(tc6393xb->scr + SCR_ISR) &
- ~ioread8(tc6393xb->scr + SCR_IMR)))
+ while ((isr = tmio_ioread8(tc6393xb->scr + SCR_ISR) &
+ ~tmio_ioread8(tc6393xb->scr + SCR_IMR)))
for (i = 0; i < TC6393XB_NR_IRQS; i++) {
if (isr & (1 << i))
generic_handle_irq(irq_base + i);
@@ -281,9 +305,9 @@ static void tc6393xb_irq_mask(unsigned int irq)
u8 imr;
spin_lock_irqsave(&tc6393xb->lock, flags);
- imr = ioread8(tc6393xb->scr + SCR_IMR);
+ imr = tmio_ioread8(tc6393xb->scr + SCR_IMR);
imr |= 1 << (irq - tc6393xb->irq_base);
- iowrite8(imr, tc6393xb->scr + SCR_IMR);
+ tmio_iowrite8(imr, tc6393xb->scr + SCR_IMR);
spin_unlock_irqrestore(&tc6393xb->lock, flags);
}
@@ -294,9 +318,9 @@ static void tc6393xb_irq_unmask(unsigned int irq)
u8 imr;
spin_lock_irqsave(&tc6393xb->lock, flags);
- imr = ioread8(tc6393xb->scr + SCR_IMR);
+ imr = tmio_ioread8(tc6393xb->scr + SCR_IMR);
imr &= ~(1 << (irq - tc6393xb->irq_base));
- iowrite8(imr, tc6393xb->scr + SCR_IMR);
+ tmio_iowrite8(imr, tc6393xb->scr + SCR_IMR);
spin_unlock_irqrestore(&tc6393xb->lock, flags);
}
@@ -377,9 +401,8 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
{
struct tc6393xb_platform_data *tcpd = dev->dev.platform_data;
struct tc6393xb *tc6393xb;
- struct resource *iomem;
- struct resource *rscr;
- int retval, temp;
+ struct resource *iomem, *rscr;
+ int ret, temp;
int i;
iomem = platform_get_resource(dev, IORESOURCE_MEM, 0);
@@ -388,20 +411,26 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
tc6393xb = kzalloc(sizeof *tc6393xb, GFP_KERNEL);
if (!tc6393xb) {
- retval = -ENOMEM;
+ ret = -ENOMEM;
goto err_kzalloc;
}
spin_lock_init(&tc6393xb->lock);
platform_set_drvdata(dev, tc6393xb);
+
+ ret = platform_get_irq(dev, 0);
+ if (ret >= 0)
+ tc6393xb->irq = ret;
+ else
+ goto err_noirq;
+
tc6393xb->iomem = iomem;
- tc6393xb->irq = platform_get_irq(dev, 0);
tc6393xb->irq_base = tcpd->irq_base;
- tc6393xb->clk = clk_get(&dev->dev, "GPIO27_CLK" /* "CK3P6MI" */);
+ tc6393xb->clk = clk_get(&dev->dev, "CLK_CK3P6MI");
if (IS_ERR(tc6393xb->clk)) {
- retval = PTR_ERR(tc6393xb->clk);
+ ret = PTR_ERR(tc6393xb->clk);
goto err_clk_get;
}
@@ -411,71 +440,73 @@ static int __devinit tc6393xb_probe(struct platform_device *dev)
rscr->end = iomem->start + 0xff;
rscr->flags = IORESOURCE_MEM;
- retval = request_resource(iomem, rscr);
- if (retval)
+ ret = request_resource(iomem, rscr);
+ if (ret)
goto err_request_scr;
tc6393xb->scr = ioremap(rscr->start, rscr->end - rscr->start + 1);
if (!tc6393xb->scr) {
- retval = -ENOMEM;
+ ret = -ENOMEM;
goto err_ioremap;
}
- retval = clk_enable(tc6393xb->clk);
- if (retval)
+ ret = clk_enable(tc6393xb->clk);
+ if (ret)
goto err_clk_enable;
- retval = tcpd->enable(dev);
- if (retval)
+ ret = tcpd->enable(dev);
+ if (ret)
goto err_enable;
tc6393xb->suspend_state.fer = 0;
+
for (i = 0; i < 3; i++) {
tc6393xb->suspend_state.gpo_dsr[i] =
(tcpd->scr_gpo_dsr >> (8 * i)) & 0xff;
tc6393xb->suspend_state.gpo_doecr[i] =
(tcpd->scr_gpo_doecr >> (8 * i)) & 0xff;
}
- /*
- * It may be necessary to change this back to
- * platform-dependant code
- */
+
tc6393xb->suspend_state.ccr = SCR_CCR_UNK1 |
SCR_CCR_HCLK_48;
- retval = tc6393xb_hw_init(dev);
- if (retval)
+ ret = tc6393xb_hw_init(dev);
+ if (ret)
goto err_hw_init;
printk(KERN_INFO "Toshiba tc6393xb revision %d at 0x%08lx, irq %d\n",
- ioread8(tc6393xb->scr + SCR_REVID),
+ tmio_ioread8(tc6393xb->scr + SCR_REVID),
(unsigned long) iomem->start, tc6393xb->irq);
tc6393xb->gpio.base = -1;
if (tcpd->gpio_base >= 0) {
- retval = tc6393xb_register_gpio(tc6393xb, tcpd->gpio_base);
- if (retval)
+ ret = tc6393xb_register_gpio(tc6393xb, tcpd->gpio_base);
+ if (ret)
goto err_gpio_add;
}
- if (tc6393xb->irq)
- tc6393xb_attach_irq(dev);
+ tc6393xb_attach_irq(dev);
tc6393xb_cells[TC6393XB_CELL_NAND].driver_data = tcpd->nand_data;
tc6393xb_cells[TC6393XB_CELL_NAND].platform_data =
&tc6393xb_cells[TC6393XB_CELL_NAND];
tc6393xb_cells[TC6393XB_CELL_NAND].data_size =
sizeof(tc6393xb_cells[TC6393XB_CELL_NAND]);
+ tc6393xb_cells[TC6393XB_CELL_MMC].platform_data =
+ &tc6393xb_cells[TC6393XB_CELL_MMC];
+ tc6393xb_cells[TC6393XB_CELL_MMC].data_size =
+ sizeof(tc6393xb_cells[TC6393XB_CELL_MMC]);
+
- retval = mfd_add_devices(&dev->dev, dev->id,
+ ret = mfd_add_devices(&dev->dev, dev->id,
tc6393xb_cells, ARRAY_SIZE(tc6393xb_cells),
iomem, tcpd->irq_base);
- return 0;
+ if (!ret)
+ return 0;
- if (tc6393xb->irq)
- tc6393xb_detach_irq(dev);
+ tc6393xb_detach_irq(dev);
err_gpio_add:
if (tc6393xb->gpio.base != -1)
@@ -490,10 +521,11 @@ err_ioremap:
release_resource(&tc6393xb->rscr);
err_request_scr:
clk_put(tc6393xb->clk);
+err_noirq:
err_clk_get:
kfree(tc6393xb);
err_kzalloc:
- return retval;
+ return ret;
}
static int __devexit tc6393xb_remove(struct platform_device *dev)
@@ -503,9 +535,7 @@ static int __devexit tc6393xb_remove(struct platform_device *dev)
int ret;
mfd_remove_devices(&dev->dev);
-
- if (tc6393xb->irq)
- tc6393xb_detach_irq(dev);
+ tc6393xb_detach_irq(dev);
if (tc6393xb->gpio.base != -1) {
ret = gpiochip_remove(&tc6393xb->gpio);
@@ -516,17 +546,11 @@ static int __devexit tc6393xb_remove(struct platform_device *dev)
}
ret = tcpd->disable(dev);
-
clk_disable(tc6393xb->clk);
-
iounmap(tc6393xb->scr);
-
release_resource(&tc6393xb->rscr);
-
platform_set_drvdata(dev, NULL);
-
clk_put(tc6393xb->clk);
-
kfree(tc6393xb);
return ret;
@@ -537,8 +561,7 @@ static int tc6393xb_suspend(struct platform_device *dev, pm_message_t state)
{
struct tc6393xb_platform_data *tcpd = dev->dev.platform_data;
struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
- int i;
-
+ int i, ret;
tc6393xb->suspend_state.ccr = ioread16(tc6393xb->scr + SCR_CCR);
tc6393xb->suspend_state.fer = ioread8(tc6393xb->scr + SCR_FER);
@@ -551,14 +574,21 @@ static int tc6393xb_suspend(struct platform_device *dev, pm_message_t state)
tc6393xb->suspend_state.gpi_bcr[i] =
ioread8(tc6393xb->scr + SCR_GPI_BCR(i));
}
+ ret = tcpd->suspend(dev);
+ clk_disable(tc6393xb->clk);
- return tcpd->suspend(dev);
+ return ret;
}
static int tc6393xb_resume(struct platform_device *dev)
{
struct tc6393xb_platform_data *tcpd = dev->dev.platform_data;
- int ret = tcpd->resume(dev);
+ struct tc6393xb *tc6393xb = platform_get_drvdata(dev);
+ int ret;
+
+ clk_enable(tc6393xb->clk);
+
+ ret = tcpd->resume(dev);
if (ret)
return ret;
@@ -595,7 +625,7 @@ static void __exit tc6393xb_exit(void)
subsys_initcall(tc6393xb_init);
module_exit(tc6393xb_exit);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Ian Molton, Dmitry Baryshkov and Dirk Opfer");
MODULE_DESCRIPTION("tc6393xb Toshiba Mobile IO Controller");
MODULE_ALIAS("platform:tc6393xb");
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-29 14:20:20 +0000