fbdev: sh_mobile_lcdc: Support horizontal panning

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 68011b5..d82c1de 100644 (file)
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -1493,7 +1493,7 @@ static const struct fb_fix_screeninfo sh_mobile_lcdc_overlay_fix  = {
        .type =         FB_TYPE_PACKED_PIXELS,
        .visual =       FB_VISUAL_TRUECOLOR,
        .accel =        FB_ACCEL_NONE,
-       .xpanstep =     0,
+       .xpanstep =     1,
        .ypanstep =     1,
        .ywrapstep =    0,
        .capabilities = FB_CAP_FOURCC,
@@ -1714,9 +1714,14 @@ sh_mobile_lcdc_overlay_fb_init(struct sh_mobile_lcdc_overlay *ovl)
        else
                info->fix.visual = FB_VISUAL_TRUECOLOR;
 
-       if (ovl->format->fourcc == V4L2_PIX_FMT_NV12 ||
-           ovl->format->fourcc == V4L2_PIX_FMT_NV21)
+       switch (ovl->format->fourcc) {
+       case V4L2_PIX_FMT_NV16:
+       case V4L2_PIX_FMT_NV61:
                info->fix.ypanstep = 2;
+       case V4L2_PIX_FMT_NV12:
+       case V4L2_PIX_FMT_NV21:
+               info->fix.xpanstep = 2;
+       }
 
        /* Initialize variable screen information. */
        var = &info->var;
@@ -1771,7 +1776,7 @@ static const struct fb_fix_screeninfo sh_mobile_lcdc_fix  = {
        .type =         FB_TYPE_PACKED_PIXELS,
        .visual =       FB_VISUAL_TRUECOLOR,
        .accel =        FB_ACCEL_NONE,
-       .xpanstep =     0,
+       .xpanstep =     1,
        .ypanstep =     1,
        .ywrapstep =    0,
        .capabilities = FB_CAP_FOURCC,
@@ -2209,9 +2214,14 @@ sh_mobile_lcdc_channel_fb_init(struct sh_mobile_lcdc_chan *ch,
        else
                info->fix.visual = FB_VISUAL_TRUECOLOR;
 
-       if (ch->format->fourcc == V4L2_PIX_FMT_NV12 ||
-           ch->format->fourcc == V4L2_PIX_FMT_NV21)
+       switch (ch->format->fourcc) {
+       case V4L2_PIX_FMT_NV16:
+       case V4L2_PIX_FMT_NV61:
                info->fix.ypanstep = 2;
+       case V4L2_PIX_FMT_NV12:
+       case V4L2_PIX_FMT_NV21:
+               info->fix.xpanstep = 2;
+       }
 
        /* Initialize variable screen information using the first mode as
         * default.