Replace existing resource handling in the driver with managed device
resource.
v2: implement some changes as recommended by
Prabhakar Lad <prabhakar.csengg@xxxxxxxxx>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>
Signed-off-by: Darren Etheridge <detheridge@xxxxxx>
---
drivers/video/da8xx-fb.c | 41 ++++++++---------------------------------
1 files changed, 8 insertions(+), 33 deletions(-)
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 8384455..c620a32 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -133,7 +133,6 @@
#define PALETTE_SIZE 256
static void __iomem *da8xx_fb_reg_base;
-static struct resource *lcdc_regs;
static unsigned int lcd_revision;
static irq_handler_t lcdc_irq_handler;
static wait_queue_head_t frame_done_wq;
@@ -1039,12 +1038,9 @@ static int fb_remove(struct platform_device *dev)
par->p_palette_base);
dma_free_coherent(NULL, par->vram_size, par->vram_virt,
par->vram_phys);
- free_irq(par->irq, par);
pm_runtime_put_sync(&dev->dev);
pm_runtime_disable(&dev->dev);
framebuffer_release(info);
- iounmap(da8xx_fb_reg_base);
- release_mem_region(lcdc_regs->start, resource_size(lcdc_regs));
}
return 0;
@@ -1261,12 +1257,12 @@ static int fb_probe(struct platform_device *device)
{
struct da8xx_lcdc_platform_data *fb_pdata =
device->dev.platform_data;
+ static struct resource *lcdc_regs;
struct lcd_ctrl_config *lcd_cfg;
struct fb_videomode *lcdc_info;
struct fb_info *da8xx_fb_info;
struct clk *fb_clk = NULL;
struct da8xx_fb_par *par;
- resource_size_t len;
int ret, i;
unsigned long ulcm;
@@ -1276,29 +1272,14 @@ static int fb_probe(struct platform_device *device)
}
lcdc_regs = platform_get_resource(device, IORESOURCE_MEM, 0);
- if (!lcdc_regs) {
- dev_err(&device->dev,
- "Can not get memory resource for LCD controller\n");
- return -ENOENT;
- }
-
- len = resource_size(lcdc_regs);
-
- lcdc_regs = request_mem_region(lcdc_regs->start, len, lcdc_regs->name);
- if (!lcdc_regs)
- return -EBUSY;
+ da8xx_fb_reg_base = devm_ioremap_resource(&device->dev, lcdc_regs);
+ if (IS_ERR(da8xx_fb_reg_base))
+ return PTR_ERR(da8xx_fb_reg_base);
- da8xx_fb_reg_base = ioremap(lcdc_regs->start, len);
- if (!da8xx_fb_reg_base) {
- ret = -EBUSY;
- goto err_request_mem;
- }
-
- fb_clk = clk_get(&device->dev, "fck");
+ fb_clk = devm_clk_get(&device->dev, "fck");
if (IS_ERR(fb_clk)) {
dev_err(&device->dev, "Can not get device clock\n");
- ret = -ENODEV;
- goto err_ioremap;
+ return PTR_ERR(fb_clk);
}
pm_runtime_enable(&device->dev);
@@ -1459,8 +1440,8 @@ static int fb_probe(struct platform_device *device)
lcdc_irq_handler = lcdc_irq_handler_rev02;
}
- ret = request_irq(par->irq, lcdc_irq_handler, 0,
- DRIVER_NAME, par);
+ ret = devm_request_irq(&device->dev, par->irq, lcdc_irq_handler, 0,
+ DRIVER_NAME, par);
if (ret)
goto irq_freq;
return 0;
@@ -1489,12 +1470,6 @@ err_pm_runtime_disable:
pm_runtime_put_sync(&device->dev);
pm_runtime_disable(&device->dev);
-err_ioremap:
- iounmap(da8xx_fb_reg_base);
-
-err_request_mem:
- release_mem_region(lcdc_regs->start, len);
-
return ret;
}
--
1.7.0.4
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