blackfin video driver: update the BF52x EZKIT video framebuffer driver according to LKML review

- Allocate pseudo_palette together with fbinfo
- Code cleanup

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 14 insertions, 22 deletions

diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index a2bb2de9e020..f36ca7f6d8a0 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;