diff options
Diffstat (limited to 'bsp/meta-freescale-3rdparty/recipes-kernel/linux/linux-compulab-3.14.28/0035-video-mxc-IPUv3-fb-restore-sync-bits.patch')
| -rw-r--r-- | bsp/meta-freescale-3rdparty/recipes-kernel/linux/linux-compulab-3.14.28/0035-video-mxc-IPUv3-fb-restore-sync-bits.patch | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/bsp/meta-freescale-3rdparty/recipes-kernel/linux/linux-compulab-3.14.28/0035-video-mxc-IPUv3-fb-restore-sync-bits.patch b/bsp/meta-freescale-3rdparty/recipes-kernel/linux/linux-compulab-3.14.28/0035-video-mxc-IPUv3-fb-restore-sync-bits.patch deleted file mode 100644 index 45712e58..00000000 --- a/bsp/meta-freescale-3rdparty/recipes-kernel/linux/linux-compulab-3.14.28/0035-video-mxc-IPUv3-fb-restore-sync-bits.patch +++ /dev/null @@ -1,114 +0,0 @@ -From db8c584359449958872973912001bd845438c487 Mon Sep 17 00:00:00 2001 -From: Dmitry Lifshitz <lifshitz@compulab.co.il> -Date: Thu, 12 Feb 2015 16:59:53 +0200 -Subject: [PATCH 35/59] video: mxc: IPUv3 fb: restore sync bits - -Freescale framebuffer driver uses some driver-specific -proprietary bits in the sync field (like pixel clock polarity). - -Xorg driver discards unknown sync bits in the fb_var_screeninfo -structure. As the results of dropping the proprietary sync bits -some displays shows various artifacts. - -Fix the bug by hacking mxcfb_set_par() callback. - -Before applying new var parameters, try to find a match in the mode -list, skipping proprietary sync bits (FB_MXC_SYNC_MASK). - -If the entry is found, copy its FB_MXC_SYNC_MASK bits. - -Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> -Signed-off-by: Valentin Raevsky <valentin@compulab.co.il> ---- - drivers/video/mxc/mxc_ipuv3_fb.c | 38 ++++++++++++++++++++++++++++++++++++++ - include/linux/mxcfb.h | 11 +++++++++++ - 2 files changed, 49 insertions(+) - -diff --git a/drivers/video/mxc/mxc_ipuv3_fb.c b/drivers/video/mxc/mxc_ipuv3_fb.c -index 1fbfc9d..d24241a 100644 ---- a/drivers/video/mxc/mxc_ipuv3_fb.c -+++ b/drivers/video/mxc/mxc_ipuv3_fb.c -@@ -428,6 +428,28 @@ static bool mxcfb_need_to_set_par(struct fb_info *fbi) - sizeof(struct fb_var_screeninfo)); - } - -+static struct fb_videomode *mxc_match_mode(const struct fb_var_screeninfo *var, -+ struct list_head *head) -+{ -+ struct list_head *pos; -+ struct fb_modelist *modelist; -+ struct fb_videomode *m, mode; -+ -+ fb_var_to_videomode(&mode, var); -+ list_for_each(pos, head) { -+ modelist = list_entry(pos, struct fb_modelist, list); -+ m = &modelist->mode; -+ -+ mode.sync &= ~FB_MXC_SYNC_MASK; -+ mode.sync |= m->sync & FB_MXC_SYNC_MASK; -+ -+ if (fb_mode_is_equal(m, &mode)) -+ return m; -+ } -+ -+ return NULL; -+} -+ - /* - * Set framebuffer parameters and change the operating mode. - * -@@ -583,6 +605,7 @@ static int mxcfb_set_par(struct fb_info *fbi) - - if (!mxc_fbi->overlay) { - uint32_t out_pixel_fmt; -+ struct fb_videomode *sync_mode; - - memset(&sig_cfg, 0, sizeof(sig_cfg)); - if (fbi->var.vmode & FB_VMODE_INTERLACED) -@@ -596,6 +619,21 @@ static int mxcfb_set_par(struct fb_info *fbi) - sig_cfg.Hsync_pol = true; - if (fbi->var.sync & FB_SYNC_VERT_HIGH_ACT) - sig_cfg.Vsync_pol = true; -+ -+ /* -+ * Try to find matching all parameters, except -+ * FB_MXC_SYNC_MASK bits in the .sync field. -+ */ -+ sync_mode = mxc_match_mode(&fbi->var, &fbi->modelist); -+ /* -+ * If entry exists in the mode list and FB_MXC_SYNC_MASK -+ * bits are empty in the fbi->var.sync (most probably cleared -+ * by the user space application) then copy it from the found -+ * mode list entry. -+ */ -+ if (sync_mode && !(fbi->var.sync & FB_MXC_SYNC_MASK)) -+ fbi->var.sync = sync_mode->sync; -+ - if (!(fbi->var.sync & FB_SYNC_CLK_LAT_FALL)) - sig_cfg.clk_pol = true; - if (fbi->var.sync & FB_SYNC_DATA_INVERT) -diff --git a/include/linux/mxcfb.h b/include/linux/mxcfb.h -index 67db5ee..e63aa2c 100644 ---- a/include/linux/mxcfb.h -+++ b/include/linux/mxcfb.h -@@ -23,6 +23,17 @@ - - #include <uapi/linux/mxcfb.h> - -+#define FB_SYNC_OE_LOW_ACT 0x80000000 -+#define FB_SYNC_CLK_LAT_FALL 0x40000000 -+#define FB_SYNC_DATA_INVERT 0x20000000 -+#define FB_SYNC_CLK_IDLE_EN 0x10000000 -+#define FB_SYNC_SHARP_MODE 0x08000000 -+#define FB_SYNC_SWAP_RGB 0x04000000 -+ -+#define FB_MXC_SYNC_MASK (FB_SYNC_OE_LOW_ACT | FB_SYNC_CLK_LAT_FALL | \ -+ FB_SYNC_DATA_INVERT | FB_SYNC_CLK_IDLE_EN | \ -+ FB_SYNC_SHARP_MODE | FB_SYNC_SWAP_RGB) -+ - extern struct fb_videomode mxcfb_modedb[]; - extern int mxcfb_modedb_sz; - --- -1.7.9.5 - |