Re: [PATCH v6 11/18] video: tegra20: dc: clean framebuffer memory block

[Thierry Reding]

On Tue Jan 23, 2024 at 6:16 PM CET, Svyatoslav Ryhel wrote:
> From: Jonas Schwöbel 
>
> Fill the framebuffer memory with zeros to avoid visual glitches.
>
> Signed-off-by: Jonas Schwöbel 
> Signed-off-by: Svyatoslav Ryhel 
> ---
>  drivers/video/tegra20/tegra-dc.c | 5 +
>  1 file changed, 5 insertions(+)

Makes sense:

Reviewed-by: Thierry Reding 


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[PATCH v6 11/18] video: tegra20: dc: clean framebuffer memory block

[Svyatoslav Ryhel]

From: Jonas Schwöbel 

Fill the framebuffer memory with zeros to avoid visual glitches.

Signed-off-by: Jonas Schwöbel 
Signed-off-by: Svyatoslav Ryhel 
---
 drivers/video/tegra20/tegra-dc.c | 5 +
 1 file changed, 5 insertions(+)

diff --git a/drivers/video/tegra20/tegra-dc.c b/drivers/video/tegra20/tegra-dc.c
index ac6833229a..caeec94468 100644
--- a/drivers/video/tegra20/tegra-dc.c
+++ b/drivers/video/tegra20/tegra-dc.c
@@ -4,6 +4,7 @@
  */
 
 #include 
+#include 
 #include 
 #include 
 #include 
@@ -398,6 +399,10 @@ static int tegra_lcd_probe(struct udevice *dev)
priv->scdiv = dc_plat->scdiv;
}
 
+   /* Clean the framebuffer area */
+   memset((u8 *)plat->base, 0, plat->size);
+   flush_dcache_all();
+
if (tegra_display_probe(priv, (void *)plat->base)) {
debug("%s: Failed to probe display driver\n", __func__);
return -1;
-- 
2.40.1