aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/video/bf537-lq035.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/video/bf537-lq035.c')
-rw-r--r--drivers/video/bf537-lq035.c58
1 files changed, 33 insertions, 25 deletions
diff --git a/drivers/video/bf537-lq035.c b/drivers/video/bf537-lq035.c
index 18c507874ff1..47c21fb2c82f 100644
--- a/drivers/video/bf537-lq035.c
+++ b/drivers/video/bf537-lq035.c
@@ -696,6 +696,7 @@ static int __devinit bfin_lq035_probe(struct platform_device *pdev)
696{ 696{
697 struct backlight_properties props; 697 struct backlight_properties props;
698 dma_addr_t dma_handle; 698 dma_addr_t dma_handle;
699 int ret;
699 700
700 if (request_dma(CH_PPI, KBUILD_MODNAME)) { 701 if (request_dma(CH_PPI, KBUILD_MODNAME)) {
701 pr_err("couldn't request PPI DMA\n"); 702 pr_err("couldn't request PPI DMA\n");
@@ -704,17 +705,16 @@ static int __devinit bfin_lq035_probe(struct platform_device *pdev)
704 705
705 if (request_ports()) { 706 if (request_ports()) {
706 pr_err("couldn't request gpio port\n"); 707 pr_err("couldn't request gpio port\n");
707 free_dma(CH_PPI); 708 ret = -EFAULT;
708 return -EFAULT; 709 goto out_ports;
709 } 710 }
710 711
711 fb_buffer = dma_alloc_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, 712 fb_buffer = dma_alloc_coherent(NULL, TOTAL_VIDEO_MEM_SIZE,
712 &dma_handle, GFP_KERNEL); 713 &dma_handle, GFP_KERNEL);
713 if (fb_buffer == NULL) { 714 if (fb_buffer == NULL) {
714 pr_err("couldn't allocate dma buffer\n"); 715 pr_err("couldn't allocate dma buffer\n");
715 free_dma(CH_PPI); 716 ret = -ENOMEM;
716 free_ports(); 717 goto out_dma_coherent;
717 return -ENOMEM;
718 } 718 }
719 719
720 if (L1_DATA_A_LENGTH) 720 if (L1_DATA_A_LENGTH)
@@ -725,10 +725,8 @@ static int __devinit bfin_lq035_probe(struct platform_device *pdev)
725 725
726 if (dma_desc_table == NULL) { 726 if (dma_desc_table == NULL) {
727 pr_err("couldn't allocate dma descriptor\n"); 727 pr_err("couldn't allocate dma descriptor\n");
728 free_dma(CH_PPI); 728 ret = -ENOMEM;
729 free_ports(); 729 goto out_table;
730 dma_free_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, fb_buffer, 0);
731 return -ENOMEM;
732 } 730 }
733 731
734 bfin_lq035_fb.screen_base = (void *)fb_buffer; 732 bfin_lq035_fb.screen_base = (void *)fb_buffer;
@@ -771,31 +769,21 @@ static int __devinit bfin_lq035_probe(struct platform_device *pdev)
771 bfin_lq035_fb.pseudo_palette = kzalloc(sizeof(u32) * 16, GFP_KERNEL); 769 bfin_lq035_fb.pseudo_palette = kzalloc(sizeof(u32) * 16, GFP_KERNEL);
772 if (bfin_lq035_fb.pseudo_palette == NULL) { 770 if (bfin_lq035_fb.pseudo_palette == NULL) {
773 pr_err("failed to allocate pseudo_palette\n"); 771 pr_err("failed to allocate pseudo_palette\n");
774 free_dma(CH_PPI); 772 ret = -ENOMEM;
775 free_ports(); 773 goto out_palette;
776 dma_free_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, fb_buffer, 0);
777 return -ENOMEM;
778 } 774 }
779 775
780 if (fb_alloc_cmap(&bfin_lq035_fb.cmap, NBR_PALETTE, 0) < 0) { 776 if (fb_alloc_cmap(&bfin_lq035_fb.cmap, NBR_PALETTE, 0) < 0) {
781 pr_err("failed to allocate colormap (%d entries)\n", 777 pr_err("failed to allocate colormap (%d entries)\n",
782 NBR_PALETTE); 778 NBR_PALETTE);
783 free_dma(CH_PPI); 779 ret = -EFAULT;
784 free_ports(); 780 goto out_cmap;
785 dma_free_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, fb_buffer, 0);
786 kfree(bfin_lq035_fb.pseudo_palette);
787 return -EFAULT;
788 } 781 }
789 782
790 if (register_framebuffer(&bfin_lq035_fb) < 0) { 783 if (register_framebuffer(&bfin_lq035_fb) < 0) {
791 pr_err("unable to register framebuffer\n"); 784 pr_err("unable to register framebuffer\n");
792 free_dma(CH_PPI); 785 ret = -EINVAL;
793 free_ports(); 786 goto out_reg;
794 dma_free_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, fb_buffer, 0);
795 fb_buffer = NULL;
796 kfree(bfin_lq035_fb.pseudo_palette);
797 fb_dealloc_cmap(&bfin_lq035_fb.cmap);
798 return -EINVAL;
799 } 787 }
800 788
801 i2c_add_driver(&ad5280_driver); 789 i2c_add_driver(&ad5280_driver);
@@ -807,11 +795,31 @@ static int __devinit bfin_lq035_probe(struct platform_device *pdev)
807 795
808 lcd_dev = lcd_device_register(KBUILD_MODNAME, &pdev->dev, NULL, 796 lcd_dev = lcd_device_register(KBUILD_MODNAME, &pdev->dev, NULL,
809 &bfin_lcd_ops); 797 &bfin_lcd_ops);
798 if (IS_ERR(lcd_dev)) {
799 pr_err("unable to register lcd\n");
800 ret = PTR_ERR(lcd_dev);
801 goto out_lcd;
802 }
810 lcd_dev->props.max_contrast = 255, 803 lcd_dev->props.max_contrast = 255,
811 804
812 pr_info("initialized"); 805 pr_info("initialized");
813 806
814 return 0; 807 return 0;
808out_lcd:
809 unregister_framebuffer(&bfin_lq035_fb);
810out_reg:
811 fb_dealloc_cmap(&bfin_lq035_fb.cmap);
812out_cmap:
813 kfree(bfin_lq035_fb.pseudo_palette);
814out_palette:
815out_table:
816 dma_free_coherent(NULL, TOTAL_VIDEO_MEM_SIZE, fb_buffer, 0);
817 fb_buffer = NULL;
818out_dma_coherent:
819 free_ports();
820out_ports:
821 free_dma(CH_PPI);
822 return ret;
815} 823}
816 824
817static int __devexit bfin_lq035_remove(struct platform_device *pdev) 825static int __devexit bfin_lq035_remove(struct platform_device *pdev)