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Subject[PATCH 1/1] Blackfin Video Driver: Update the BF52x EZKIT video framebuffer driver according to LKML review
Date
 - Allocate pseudo_palette together with fbinfo
- Remove the cast when request irq as Geert said
- Code cleanup

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
---
drivers/video/bfin-t350mcqb-fb.c | 36 ++++++++++++++----------------------
1 files changed, 14 insertions(+), 22 deletions(-)

diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index a2bb2de..f36ca7f 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -91,6 +91,7 @@ struct bfin_t350mcqbfb_info {
int lq043_open_cnt;
int irq;
spinlock_t lock; /* lock */
+ u32 pseudo_pal[16];
};

static int nocursor;
@@ -182,13 +183,13 @@ static void bfin_t350mcqb_config_dma(struct bfin_t350mcqbfb_info *fbi)

}

-static int bfin_t350mcqb_request_ports(int action)
-{
- u16 ppi0_req_8[] = {P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+static u16 ppi0_req_8[] = {P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
P_PPI0_D0, P_PPI0_D1, P_PPI0_D2,
P_PPI0_D3, P_PPI0_D4, P_PPI0_D5,
P_PPI0_D6, P_PPI0_D7, 0};

+static int bfin_t350mcqb_request_ports(int action)
+{
if (action) {
if (peripheral_request_list(ppi0_req_8, DRIVER_NAME)) {
printk(KERN_ERR "Requesting Peripherals faild\n");
@@ -520,16 +521,7 @@ static int __init bfin_t350mcqb_probe(struct platform_device *pdev)

fbinfo->fbops = &bfin_t350mcqb_fb_ops;

- fbinfo->pseudo_palette = kmalloc(sizeof(u32) * 16, GFP_KERNEL);
- if (!fbinfo->pseudo_palette) {
- printk(KERN_ERR DRIVER_NAME
- "Fail to allocate pseudo_palette\n");
-
- ret = -ENOMEM;
- goto out4;
- }
-
- memset(fbinfo->pseudo_palette, 0, sizeof(u32) * 16);
+ fbinfo->pseudo_palette = &info->pseudo_pal;

if (fb_alloc_cmap(&fbinfo->cmap, BFIN_LCD_NBR_PALETTE_ENTRIES, 0)
< 0) {
@@ -537,7 +529,7 @@ static int __init bfin_t350mcqb_probe(struct platform_device *pdev)
"Fail to allocate colormap (%d entries)\n",
BFIN_LCD_NBR_PALETTE_ENTRIES);
ret = -EFAULT;
- goto out5;
+ goto out4;
}

if (bfin_t350mcqb_request_ports(1)) {
@@ -552,11 +544,11 @@ static int __init bfin_t350mcqb_probe(struct platform_device *pdev)
goto out7;
}

- if (request_irq(info->irq, (void *)bfin_t350mcqb_irq_error, IRQF_DISABLED,
- "PPI ERROR", info) < 0) {
+ ret = request_irq(info->irq, bfin_t350mcqb_irq_error, IRQF_DISABLED,
+ "PPI ERROR", info);
+ if (ret < 0) {
printk(KERN_ERR DRIVER_NAME
": unable to request PPI ERROR IRQ\n");
- ret = -EFAULT;
goto out7;
}

@@ -584,8 +576,6 @@ out7:
bfin_t350mcqb_request_ports(0);
out6:
fb_dealloc_cmap(&fbinfo->cmap);
-out5:
- kfree(fbinfo->pseudo_palette);
out4:
dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
info->dma_handle);
@@ -605,6 +595,8 @@ static int bfin_t350mcqb_remove(struct platform_device *pdev)
struct fb_info *fbinfo = platform_get_drvdata(pdev);
struct bfin_t350mcqbfb_info *info = fbinfo->par;

+ unregister_framebuffer(fbinfo);
+
free_dma(CH_PPI);
free_irq(info->irq, info);

@@ -612,7 +604,6 @@ static int bfin_t350mcqb_remove(struct platform_device *pdev)
dma_free_coherent(NULL, fbinfo->fix.smem_len, info->fb_buffer,
info->dma_handle);

- kfree(fbinfo->pseudo_palette);
fb_dealloc_cmap(&fbinfo->cmap);

#ifndef NO_BL_SUPPORT
@@ -620,10 +611,11 @@ static int bfin_t350mcqb_remove(struct platform_device *pdev)
backlight_device_unregister(bl_dev);
#endif

- unregister_framebuffer(fbinfo);
-
bfin_t350mcqb_request_ports(0);

+ platform_set_drvdata(pdev, NULL);
+ framebuffer_release(fbinfo);
+
printk(KERN_INFO DRIVER_NAME ": Unregister LCD driver.\n");

return 0;
--
1.5.4.3

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