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@@ -14,25 +14,25 @@
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* GNU General Public License for more details.
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* GNU General Public License for more details.
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*/
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*/
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-#include <linux/module.h>
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-#include <linux/kernel.h>
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-#include <linux/errno.h>
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-#include <linux/string.h>
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-#include <linux/mm.h>
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-#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/delay.h>
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+#include <linux/dma-mapping.h>
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#include <linux/fb.h>
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#include <linux/fb.h>
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+#include <linux/errno.h>
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+#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/io.h>
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-#include <linux/dma-mapping.h>
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-#include <linux/platform_device.h>
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-#include <linux/wait.h>
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+#include <linux/kernel.h>
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+#include <linux/memblock.h>
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+#include <linux/mm.h>
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+#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/of.h>
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#include <linux/of_fdt.h>
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#include <linux/of_fdt.h>
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-#include <linux/memblock.h>
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-
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-#include <linux/platform_data/video-vt8500lcdfb.h>
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+#include <linux/platform_device.h>
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+#include <linux/slab.h>
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+#include <linux/string.h>
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+#include <linux/wait.h>
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+#include <video/of_display_timing.h>
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#include "wm8505fb_regs.h"
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#include "wm8505fb_regs.h"
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#include "wmt_ge_rops.h"
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#include "wmt_ge_rops.h"
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@@ -263,26 +263,22 @@ static struct fb_ops wm8505fb_ops = {
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static int wm8505fb_probe(struct platform_device *pdev)
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static int wm8505fb_probe(struct platform_device *pdev)
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{
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{
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struct wm8505fb_info *fbi;
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struct wm8505fb_info *fbi;
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- struct resource *res;
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+ struct resource *res;
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+ struct display_timings *disp_timing;
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void *addr;
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void *addr;
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int ret;
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int ret;
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- struct fb_videomode of_mode;
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- struct device_node *np;
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+ struct fb_videomode mode;
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u32 bpp;
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u32 bpp;
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dma_addr_t fb_mem_phys;
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dma_addr_t fb_mem_phys;
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unsigned long fb_mem_len;
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unsigned long fb_mem_len;
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void *fb_mem_virt;
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void *fb_mem_virt;
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- ret = -ENOMEM;
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- fbi = NULL;
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-
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fbi = devm_kzalloc(&pdev->dev, sizeof(struct wm8505fb_info) +
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fbi = devm_kzalloc(&pdev->dev, sizeof(struct wm8505fb_info) +
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sizeof(u32) * 16, GFP_KERNEL);
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sizeof(u32) * 16, GFP_KERNEL);
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if (!fbi) {
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if (!fbi) {
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dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
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dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
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- ret = -ENOMEM;
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- goto failed;
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+ return -ENOMEM;
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}
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}
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strcpy(fbi->fb.fix.id, DRIVER_NAME);
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strcpy(fbi->fb.fix.id, DRIVER_NAME);
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@@ -308,54 +304,23 @@ static int wm8505fb_probe(struct platform_device *pdev)
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fbi->fb.pseudo_palette = addr;
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fbi->fb.pseudo_palette = addr;
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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- if (res == NULL) {
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- dev_err(&pdev->dev, "no I/O memory resource defined\n");
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- ret = -ENODEV;
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- goto failed_fbi;
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- }
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+ fbi->regbase = devm_ioremap_resource(&pdev->dev, res);
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+ if (IS_ERR(fbi->regbase))
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+ return PTR_ERR(fbi->regbase);
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- res = request_mem_region(res->start, resource_size(res), DRIVER_NAME);
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- if (res == NULL) {
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- dev_err(&pdev->dev, "failed to request I/O memory\n");
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- ret = -EBUSY;
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- goto failed_fbi;
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- }
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-
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- fbi->regbase = ioremap(res->start, resource_size(res));
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- if (fbi->regbase == NULL) {
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- dev_err(&pdev->dev, "failed to map I/O memory\n");
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- ret = -EBUSY;
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- goto failed_free_res;
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- }
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+ disp_timing = of_get_display_timings(pdev->dev.of_node);
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+ if (!disp_timing)
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+ return -EINVAL;
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- np = of_parse_phandle(pdev->dev.of_node, "default-mode", 0);
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- if (!np) {
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- pr_err("%s: No display description in Device Tree\n", __func__);
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- ret = -EINVAL;
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- goto failed_free_res;
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- }
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+ ret = of_get_fb_videomode(pdev->dev.of_node, &mode, OF_USE_NATIVE_MODE);
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+ if (ret)
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+ return ret;
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- /*
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- * This code is copied from Sascha Hauer's of_videomode helper
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- * and can be replaced with a call to the helper once mainlined
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- */
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- ret = 0;
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- ret |= of_property_read_u32(np, "hactive", &of_mode.xres);
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- ret |= of_property_read_u32(np, "vactive", &of_mode.yres);
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- ret |= of_property_read_u32(np, "hback-porch", &of_mode.left_margin);
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- ret |= of_property_read_u32(np, "hfront-porch", &of_mode.right_margin);
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- ret |= of_property_read_u32(np, "hsync-len", &of_mode.hsync_len);
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- ret |= of_property_read_u32(np, "vback-porch", &of_mode.upper_margin);
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- ret |= of_property_read_u32(np, "vfront-porch", &of_mode.lower_margin);
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- ret |= of_property_read_u32(np, "vsync-len", &of_mode.vsync_len);
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- ret |= of_property_read_u32(np, "bpp", &bpp);
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- if (ret) {
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- pr_err("%s: Unable to read display properties\n", __func__);
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- goto failed_free_res;
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- }
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+ ret = of_property_read_u32(pdev->dev.of_node, "bits-per-pixel", &bpp);
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+ if (ret)
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+ return ret;
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- of_mode.vmode = FB_VMODE_NONINTERLACED;
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- fb_videomode_to_var(&fbi->fb.var, &of_mode);
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+ fb_videomode_to_var(&fbi->fb.var, &mode);
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fbi->fb.var.nonstd = 0;
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fbi->fb.var.nonstd = 0;
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fbi->fb.var.activate = FB_ACTIVATE_NOW;
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fbi->fb.var.activate = FB_ACTIVATE_NOW;
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@@ -364,16 +329,16 @@ static int wm8505fb_probe(struct platform_device *pdev)
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fbi->fb.var.width = -1;
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fbi->fb.var.width = -1;
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/* try allocating the framebuffer */
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/* try allocating the framebuffer */
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- fb_mem_len = of_mode.xres * of_mode.yres * 2 * (bpp / 8);
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- fb_mem_virt = dma_alloc_coherent(&pdev->dev, fb_mem_len, &fb_mem_phys,
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+ fb_mem_len = mode.xres * mode.yres * 2 * (bpp / 8);
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+ fb_mem_virt = dmam_alloc_coherent(&pdev->dev, fb_mem_len, &fb_mem_phys,
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GFP_KERNEL);
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GFP_KERNEL);
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if (!fb_mem_virt) {
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if (!fb_mem_virt) {
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pr_err("%s: Failed to allocate framebuffer\n", __func__);
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pr_err("%s: Failed to allocate framebuffer\n", __func__);
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return -ENOMEM;
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return -ENOMEM;
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- };
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+ }
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- fbi->fb.var.xres_virtual = of_mode.xres;
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- fbi->fb.var.yres_virtual = of_mode.yres * 2;
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+ fbi->fb.var.xres_virtual = mode.xres;
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+ fbi->fb.var.yres_virtual = mode.yres * 2;
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fbi->fb.var.bits_per_pixel = bpp;
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fbi->fb.var.bits_per_pixel = bpp;
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fbi->fb.fix.smem_start = fb_mem_phys;
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fbi->fb.fix.smem_start = fb_mem_phys;
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@@ -381,28 +346,29 @@ static int wm8505fb_probe(struct platform_device *pdev)
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fbi->fb.screen_base = fb_mem_virt;
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fbi->fb.screen_base = fb_mem_virt;
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fbi->fb.screen_size = fb_mem_len;
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fbi->fb.screen_size = fb_mem_len;
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+ fbi->contrast = 0x10;
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+ ret = wm8505fb_set_par(&fbi->fb);
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+ if (ret) {
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+ dev_err(&pdev->dev, "Failed to set parameters\n");
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+ return ret;
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+ }
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+
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if (fb_alloc_cmap(&fbi->fb.cmap, 256, 0) < 0) {
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if (fb_alloc_cmap(&fbi->fb.cmap, 256, 0) < 0) {
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dev_err(&pdev->dev, "Failed to allocate color map\n");
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dev_err(&pdev->dev, "Failed to allocate color map\n");
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- ret = -ENOMEM;
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- goto failed_free_io;
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+ return -ENOMEM;
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}
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}
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wm8505fb_init_hw(&fbi->fb);
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wm8505fb_init_hw(&fbi->fb);
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- fbi->contrast = 0x80;
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- ret = wm8505fb_set_par(&fbi->fb);
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- if (ret) {
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- dev_err(&pdev->dev, "Failed to set parameters\n");
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- goto failed_free_cmap;
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- }
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-
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platform_set_drvdata(pdev, fbi);
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platform_set_drvdata(pdev, fbi);
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ret = register_framebuffer(&fbi->fb);
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ret = register_framebuffer(&fbi->fb);
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if (ret < 0) {
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if (ret < 0) {
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dev_err(&pdev->dev,
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dev_err(&pdev->dev,
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"Failed to register framebuffer device: %d\n", ret);
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"Failed to register framebuffer device: %d\n", ret);
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- goto failed_free_cmap;
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+ if (fbi->fb.cmap.len)
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+ fb_dealloc_cmap(&fbi->fb.cmap);
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+ return ret;
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}
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}
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ret = device_create_file(&pdev->dev, &dev_attr_contrast);
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ret = device_create_file(&pdev->dev, &dev_attr_contrast);
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@@ -416,25 +382,11 @@ static int wm8505fb_probe(struct platform_device *pdev)
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fbi->fb.fix.smem_start + fbi->fb.fix.smem_len - 1);
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fbi->fb.fix.smem_start + fbi->fb.fix.smem_len - 1);
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return 0;
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return 0;
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-
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-failed_free_cmap:
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- if (fbi->fb.cmap.len)
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- fb_dealloc_cmap(&fbi->fb.cmap);
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-failed_free_io:
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- iounmap(fbi->regbase);
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-failed_free_res:
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- release_mem_region(res->start, resource_size(res));
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-failed_fbi:
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- platform_set_drvdata(pdev, NULL);
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- kfree(fbi);
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-failed:
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- return ret;
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}
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}
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static int wm8505fb_remove(struct platform_device *pdev)
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static int wm8505fb_remove(struct platform_device *pdev)
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{
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{
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struct wm8505fb_info *fbi = platform_get_drvdata(pdev);
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struct wm8505fb_info *fbi = platform_get_drvdata(pdev);
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- struct resource *res;
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device_remove_file(&pdev->dev, &dev_attr_contrast);
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device_remove_file(&pdev->dev, &dev_attr_contrast);
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@@ -445,13 +397,6 @@ static int wm8505fb_remove(struct platform_device *pdev)
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if (fbi->fb.cmap.len)
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if (fbi->fb.cmap.len)
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fb_dealloc_cmap(&fbi->fb.cmap);
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fb_dealloc_cmap(&fbi->fb.cmap);
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- iounmap(fbi->regbase);
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-
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- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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- release_mem_region(res->start, resource_size(res));
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-
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- kfree(fbi);
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-
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return 0;
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return 0;
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}
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}
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