fbdev: sh_mobile_lcdc: Support horizontal panning

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

1 files changed, 16 insertions, 6 deletions

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 68011b5596c..d82c1dedc46 100644
--- 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.