glamo: get rid of static driver handle.

[openwrt/staging/wigyori.git] / target / linux / s3c24xx / files-2.6.30 / drivers / mfd / glamo / glamo-core.c

diff --git a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c
index fed448f88d073142051a2b3594c0bba46b175e79..45d9b794ed16808bc1c8d1e57ee6cf85968cb5f4 100644 (file)
--- a/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c
+++ b/target/linux/s3c24xx/files-2.6.30/drivers/mfd/glamo/glamo-core.c
@@ -98,8 +98,6 @@ struct reg_range reg_range[] = {
        { 0x1b00, 0x900,        "3D Unit",      0 }, */
 };
 
-static struct glamo_core *glamo_handle;
-
 static inline void __reg_write(struct glamo_core *glamo,
                                u_int16_t reg, u_int16_t val)
 {
@@ -220,32 +218,36 @@ static struct mfd_cell glamo_cells[] = {
 
 static void glamo_ack_irq(unsigned int irq)
 {
+       struct glamo_core *glamo = (struct glamo_core*)get_irq_chip_data(irq);
        /* clear interrupt source */
-       __reg_write(glamo_handle, GLAMO_REG_IRQ_CLEAR,
+       __reg_write(glamo, GLAMO_REG_IRQ_CLEAR,
                    1 << irq2glamo(irq));
 }
 
 static void glamo_mask_irq(unsigned int irq)
 {
+       struct glamo_core *glamo = (struct glamo_core*)get_irq_chip_data(irq);
        u_int16_t tmp;
 
        /* clear bit in enable register */
-       tmp = __reg_read(glamo_handle, GLAMO_REG_IRQ_ENABLE);
+       tmp = __reg_read(glamo, GLAMO_REG_IRQ_ENABLE);
        tmp &= ~(1 << irq2glamo(irq));
-       __reg_write(glamo_handle, GLAMO_REG_IRQ_ENABLE, tmp);
+       __reg_write(glamo, GLAMO_REG_IRQ_ENABLE, tmp);
 }
 
 static void glamo_unmask_irq(unsigned int irq)
 {
+       struct glamo_core *glamo = (struct glamo_core*)get_irq_chip_data(irq);
        u_int16_t tmp;
 
        /* set bit in enable register */
-       tmp = __reg_read(glamo_handle, GLAMO_REG_IRQ_ENABLE);
+       tmp = __reg_read(glamo, GLAMO_REG_IRQ_ENABLE);
        tmp |= (1 << irq2glamo(irq));
-       __reg_write(glamo_handle, GLAMO_REG_IRQ_ENABLE, tmp);
+       __reg_write(glamo, GLAMO_REG_IRQ_ENABLE, tmp);
 }
 
 static struct irq_chip glamo_irq_chip = {
+       .name   = "glamo",
        .ack    = glamo_ack_irq,
        .mask   = glamo_mask_irq,
        .unmask = glamo_unmask_irq,
@@ -253,6 +255,7 @@ static struct irq_chip glamo_irq_chip = {
 
 static void glamo_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
 {
+       struct glamo_core *glamo = get_irq_desc_chip_data(desc);
        desc->status &= ~(IRQ_REPLAY | IRQ_WAITING);
 
        if (unlikely(desc->status & IRQ_INPROGRESS)) {
@@ -281,7 +284,7 @@ static void glamo_irq_demux_handler(unsigned int irq, struct irq_desc *desc)
                desc->status &= ~IRQ_PENDING;
 
                /* read IRQ status register */
-               irqstatus = __reg_read(glamo_handle, GLAMO_REG_IRQ_STATUS);
+               irqstatus = __reg_read(glamo, GLAMO_REG_IRQ_STATUS);
                for (i = 0; i < 9; i++)
                        if (irqstatus & (1 << i))
                                desc_handle_irq(IRQ_GLAMO(i),
@@ -596,14 +599,14 @@ void glamo_engine_reset(struct glamo_core *glamo, enum glamo_engine engine)
 }
 EXPORT_SYMBOL_GPL(glamo_engine_reset);
 
-void glamo_lcm_reset(int level)
+void glamo_lcm_reset(struct platform_device *pdev, int level)
 {
-       if (!glamo_handle)
+       struct glamo_core *glamo = dev_get_drvdata(&pdev->dev);
+       if (!glamo)
                return;
 
-       glamo_gpio_setpin(glamo_handle, GLAMO_GPIO4, level);
-       glamo_gpio_cfgpin(glamo_handle, GLAMO_GPIO4_OUTPUT);
-
+       glamo_gpio_setpin(glamo, GLAMO_GPIO4, level);
+       glamo_gpio_cfgpin(glamo, GLAMO_GPIO4_OUTPUT);
 }
 EXPORT_SYMBOL_GPL(glamo_lcm_reset);
 
@@ -1107,18 +1110,11 @@ static int __init glamo_probe(struct platform_device *pdev)
        int rc = 0, irq;
        struct glamo_core *glamo;
 
-       if (glamo_handle) {
-               dev_err(&pdev->dev,
-                       "This driver supports only one instance\n");
-               return -EBUSY;
-       }
-
        glamo = kmalloc(GFP_KERNEL, sizeof(*glamo));
        if (!glamo)
                return -ENOMEM;
 
        spin_lock_init(&glamo->lock);
-       glamo_handle = glamo;
        glamo->pdev = pdev;
        glamo->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        glamo->irq = platform_get_irq(pdev, 0);
@@ -1152,15 +1148,16 @@ static int __init glamo_probe(struct platform_device *pdev)
         */
 
        for (irq = IRQ_GLAMO(0); irq <= IRQ_GLAMO(8); irq++) {
-               set_irq_chip(irq, &glamo_irq_chip);
-               set_irq_handler(irq, handle_level_irq);
+               set_irq_chip_and_handler(irq, &glamo_irq_chip, handle_level_irq);
                set_irq_flags(irq, IRQF_VALID);
+               set_irq_chip_data(irq, glamo);
        }
 
        if (glamo->pdata->glamo_irq_is_wired &&
            !glamo->pdata->glamo_irq_is_wired()) {
                set_irq_chained_handler(glamo->irq, glamo_irq_demux_handler);
                set_irq_type(glamo->irq, IRQ_TYPE_EDGE_FALLING);
+               set_irq_chip_data(glamo->irq, glamo);
                dev_info(&pdev->dev, "Glamo interrupt registered\n");
                glamo->irq_works = 1;
        } else {
@@ -1231,16 +1228,17 @@ static int __init glamo_probe(struct platform_device *pdev)
 bail_irq:
        disable_irq(glamo->irq);
        set_irq_chained_handler(glamo->irq, NULL);
+       set_irq_chip_data(glamo->irq, NULL);
 
        for (irq = IRQ_GLAMO(0); irq <= IRQ_GLAMO(8); irq++) {
                set_irq_flags(irq, 0);
                set_irq_chip(irq, NULL);
+               set_irq_chip_data(irq, NULL);
        }
 
        iounmap(glamo->base);
 bail_free:
        platform_set_drvdata(pdev, NULL);
-       glamo_handle = NULL;
        kfree(glamo);
 
        return rc;
@@ -1253,17 +1251,18 @@ static int glamo_remove(struct platform_device *pdev)
 
        disable_irq(glamo->irq);
        set_irq_chained_handler(glamo->irq, NULL);
+       set_irq_chip_data(glamo->irq, NULL);
 
        for (irq = IRQ_GLAMO(0); irq <= IRQ_GLAMO(8); irq++) {
                set_irq_flags(irq, 0);
                set_irq_chip(irq, NULL);
+               set_irq_chip_data(irq, NULL);
        }
 
        platform_set_drvdata(pdev, NULL);
        mfd_remove_devices(&pdev->dev);
        iounmap(glamo->base);
        release_mem_region(glamo->mem->start, GLAMO_REGOFS_VIDCAP);
-       glamo_handle = NULL;
        kfree(glamo);
 
        return 0;
@@ -1273,16 +1272,18 @@ static int glamo_remove(struct platform_device *pdev)
 
 static int glamo_suspend(struct platform_device *pdev, pm_message_t state)
 {
-       glamo_handle->suspending = 1;
-       glamo_power(glamo_handle, GLAMO_POWER_SUSPEND);
+       struct glamo_core *glamo = dev_get_drvdata(&pdev->dev);
+       glamo->suspending = 1;
+       glamo_power(glamo, GLAMO_POWER_SUSPEND);
 
        return 0;
 }
 
 static int glamo_resume(struct platform_device *pdev)
 {
-       glamo_power(glamo_handle, GLAMO_POWER_ON);
-       glamo_handle->suspending = 0;
+       struct glamo_core *glamo = dev_get_drvdata(&pdev->dev);
+       glamo_power(glamo, GLAMO_POWER_ON);
+       glamo->suspending = 0;
 
        return 0;
 }