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drivers/video: fsl-diu-fb: merge diu_hw into fsl_diu_data

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The diu_hw structure contains two fields used to access the DIU registers,
but the only instance of this structure is a global variable, 'dr'.
Eliminate 'dr' by merging its fields into the fsl_diu_data structure,
which is instantiated on the heap for each DIU controller found.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Timur Tabi 2011-10-04 19:36:51 -05:00 committed by Florian Tobias Schandinat
parent c4e5a02327
commit 3c755b7c09
1 changed files with 31 additions and 38 deletions
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69
drivers/video/fsl-diu-fb.c
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@ -49,11 +49,6 @@
#define INT_PARERR 0x08 /* Display parameters error interrupt */
#define INT_LS_BF_VS 0x10 /* Lines before vsync. interrupt */
struct diu_hw {
struct diu __iomem *diu_reg;
spinlock_t reg_lock;
};
struct diu_addr {
void *vaddr; /* Virtual address */
dma_addr_t paddr; /* Physical address */
@ -351,6 +346,8 @@ struct fsl_diu_data {
unsigned int irq;
int fb_enabled;
enum fsl_diu_monitor_port monitor_port;
struct diu __iomem *diu_reg;
spinlock_t reg_lock;
};
enum mfb_index {
@ -424,10 +421,6 @@ static struct mfb_info mfb_template[] = {
},
};
static struct diu_hw dr = {
.reg_lock = __SPIN_LOCK_UNLOCKED(diu_hw.reg_lock),
};
static struct diu_pool pool;
/**
@ -506,9 +499,9 @@ void wr_reg_wa(u32 *reg, u32 val)
static void fsl_diu_enable_panel(struct fb_info *info)
{
struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par;
struct diu *hw = dr.diu_reg;
struct diu_ad *ad = mfbi->ad;
struct fsl_diu_data *machine_data = mfbi->parent;
struct diu __iomem *hw = machine_data->diu_reg;
switch (mfbi->index) {
case PLANE0:
@ -559,9 +552,9 @@ static void fsl_diu_enable_panel(struct fb_info *info)
static void fsl_diu_disable_panel(struct fb_info *info)
{
struct mfb_info *pmfbi, *cmfbi, *mfbi = info->par;
struct diu *hw = dr.diu_reg;
struct diu_ad *ad = mfbi->ad;
struct fsl_diu_data *machine_data = mfbi->parent;
struct diu __iomem *hw = machine_data->diu_reg;
switch (mfbi->index) {
case PLANE0:
@ -613,9 +606,9 @@ static void fsl_diu_disable_panel(struct fb_info *info)
static void enable_lcdc(struct fb_info *info)
{
struct diu *hw = dr.diu_reg;
struct mfb_info *mfbi = info->par;
struct fsl_diu_data *machine_data = mfbi->parent;
struct diu __iomem *hw = machine_data->diu_reg;
if (!machine_data->fb_enabled) {
out_be32(&hw->diu_mode, MFB_MODE1);
@ -625,9 +618,9 @@ static void enable_lcdc(struct fb_info *info)
static void disable_lcdc(struct fb_info *info)
{
struct diu *hw = dr.diu_reg;
struct mfb_info *mfbi = info->par;
struct fsl_diu_data *machine_data = mfbi->parent;
struct diu __iomem *hw = machine_data->diu_reg;
if (machine_data->fb_enabled) {
out_be32(&hw->diu_mode, 0);
@ -822,13 +815,13 @@ static void update_lcdc(struct fb_info *info)
struct fb_var_screeninfo *var = &info->var;
struct mfb_info *mfbi = info->par;
struct fsl_diu_data *machine_data = mfbi->parent;
struct diu *hw;
struct diu __iomem *hw;
int i, j;
char __iomem *cursor_base, *gamma_table_base;
u32 temp;
hw = dr.diu_reg;
hw = machine_data->diu_reg;
diu_ops.set_monitor_port(machine_data->monitor_port);
gamma_table_base = pool.gamma.vaddr;
@ -939,9 +932,9 @@ static int fsl_diu_set_par(struct fb_info *info)
struct mfb_info *mfbi = info->par;
struct fsl_diu_data *machine_data = mfbi->parent;
struct diu_ad *ad = mfbi->ad;
struct diu *hw;
struct diu __iomem *hw;
hw = dr.diu_reg;
hw = machine_data->diu_reg;
set_fix(info);
mfbi->cursor_reset = 1;
@ -1344,7 +1337,7 @@ static void uninstall_fb(struct fb_info *info)
static irqreturn_t fsl_diu_isr(int irq, void *dev_id)
{
struct diu *hw = dr.diu_reg;
struct diu __iomem *hw = dev_id;
unsigned int status = in_be32(&hw->int_status);
if (status) {
@ -1370,18 +1363,16 @@ static irqreturn_t fsl_diu_isr(int irq, void *dev_id)
return IRQ_NONE;
}
static int request_irq_local(int irq)
static int request_irq_local(struct fsl_diu_data *machine_data)
{
struct diu __iomem *hw = machine_data->diu_reg;
u32 ints;
struct diu *hw;
int ret;
hw = dr.diu_reg;
/* Read to clear the status */
in_be32(&hw->int_status);
ret = request_irq(irq, fsl_diu_isr, 0, "fsl-diu-fb", NULL);
ret = request_irq(machine_data->irq, fsl_diu_isr, 0, "fsl-diu-fb", hw);
if (!ret) {
ints = INT_PARERR | INT_LS_BF_VS;
#if !defined(CONFIG_NOT_COHERENT_CACHE)
@ -1396,14 +1387,14 @@ static int request_irq_local(int irq)
return ret;
}
static void free_irq_local(int irq)
static void free_irq_local(struct fsl_diu_data *machine_data)
{
struct diu *hw = dr.diu_reg;
struct diu __iomem *hw = machine_data->diu_reg;
/* Disable all LCDC interrupt */
out_be32(&hw->int_mask, 0x1f);
free_irq(irq, NULL);
free_irq(machine_data->irq, NULL);
}
#ifdef CONFIG_PM
@ -1521,6 +1512,8 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
if (!machine_data)
return -ENOMEM;
spin_lock_init(&machine_data->reg_lock);
for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) {
machine_data->fsl_diu_info[i] =
framebuffer_alloc(sizeof(struct mfb_info), &pdev->dev);
@ -1545,16 +1538,16 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
}
}
dr.diu_reg = of_iomap(np, 0);
if (!dr.diu_reg) {
machine_data->diu_reg = of_iomap(np, 0);
if (!machine_data->diu_reg) {
dev_err(&pdev->dev, "cannot map DIU registers\n");
ret = -EFAULT;
goto error2;
}
diu_mode = in_be32(&dr.diu_reg->diu_mode);
diu_mode = in_be32(&machine_data->diu_reg->diu_mode);
if (diu_mode == MFB_MODE0)
out_be32(&dr.diu_reg->diu_mode, 0); /* disable DIU */
out_be32(&machine_data->diu_reg->diu_mode, 0); /* disable DIU */
/* Get the IRQ of the DIU */
machine_data->irq = irq_of_parse_and_map(np, 0);
@ -1607,10 +1600,11 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
* by the bootloader, set dummy area descriptor otherwise.
*/
if (diu_mode == MFB_MODE0)
out_be32(&dr.diu_reg->desc[0], machine_data->dummy_ad->paddr);
out_be32(&machine_data->diu_reg->desc[0],
machine_data->dummy_ad->paddr);
out_be32(&dr.diu_reg->desc[1], machine_data->dummy_ad->paddr);
out_be32(&dr.diu_reg->desc[2], machine_data->dummy_ad->paddr);
out_be32(&machine_data->diu_reg->desc[1], machine_data->dummy_ad->paddr);
out_be32(&machine_data->diu_reg->desc[2], machine_data->dummy_ad->paddr);
for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++) {
machine_data->fsl_diu_info[i]->fix.smem_start = 0;
@ -1625,7 +1619,7 @@ static int __devinit fsl_diu_probe(struct platform_device *pdev)
}
}
if (request_irq_local(machine_data->irq)) {
if (request_irq_local(machine_data)) {
dev_err(&pdev->dev, "could not claim irq\n");
goto error;
}
@ -1659,7 +1653,7 @@ error:
32);
if (machine_data->dummy_aoi_virt)
fsl_diu_free(machine_data->dummy_aoi_virt, 64);
iounmap(dr.diu_reg);
iounmap(machine_data->diu_reg);
error2:
for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++)
@ -1677,7 +1671,7 @@ static int fsl_diu_remove(struct platform_device *pdev)
machine_data = dev_get_drvdata(&pdev->dev);
disable_lcdc(machine_data->fsl_diu_info[0]);
free_irq_local(machine_data->irq);
free_irq_local(machine_data);
for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++)
uninstall_fb(machine_data->fsl_diu_info[i]);
if (pool.ad.vaddr)
@ -1689,7 +1683,7 @@ static int fsl_diu_remove(struct platform_device *pdev)
free_buf(&pdev->dev, &pool.cursor, MAX_CURS * MAX_CURS * 2, 32);
if (machine_data->dummy_aoi_virt)
fsl_diu_free(machine_data->dummy_aoi_virt, 64);
iounmap(dr.diu_reg);
iounmap(machine_data->diu_reg);
for (i = 0; i < ARRAY_SIZE(machine_data->fsl_diu_info); i++)
if (machine_data->fsl_diu_info[i])
framebuffer_release(machine_data->fsl_diu_info[i]);
@ -1812,7 +1806,6 @@ static int __init fsl_diu_init(void)
#if defined(CONFIG_NOT_COHERENT_CACHE)
vfree(coherence_data);
#endif
iounmap(dr.diu_reg);
}
return ret;
}