Patch "drm/sti: fix GDP size to support up to UHD resolution" has been added to the 4.9-stable tree

[<gregkh@linuxfoundation.org>]

This is a note to let you know that I've just added the patch titled

    drm/sti: fix GDP size to support up to UHD resolution

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-sti-fix-gdp-size-to-support-up-to-uhd-resolution.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 2f410f88c0a1c7e19762918d2614f506a7b63a82 Mon Sep 17 00:00:00 2001
From: Vincent Abriou <vincent.abriou@st.com>
Date: Thu, 23 Mar 2017 15:44:52 +0100
Subject: drm/sti: fix GDP size to support up to UHD resolution

From: Vincent Abriou <vincent.abriou@st.com>

commit 2f410f88c0a1c7e19762918d2614f506a7b63a82 upstream.

On stih407-410 chip family the GDP layers are able to support up to UHD
resolution (3840 x 2160).

Signed-off-by: Vincent Abriou <vincent.abriou@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Tested-by: Lee Jones <lee.jones@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1490280292-30466-1-git-send-email-vincent.abriou@st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/sti/sti_gdp.c |   12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

--- a/drivers/gpu/drm/sti/sti_gdp.c
+++ b/drivers/gpu/drm/sti/sti_gdp.c
@@ -66,7 +66,9 @@ static struct gdp_format_to_str {
 #define GAM_GDP_ALPHARANGE_255  BIT(5)
 #define GAM_GDP_AGC_FULL_RANGE  0x00808080
 #define GAM_GDP_PPT_IGNORE      (BIT(1) | BIT(0))
-#define GAM_GDP_SIZE_MAX        0x7FF
+
+#define GAM_GDP_SIZE_MAX_WIDTH  3840
+#define GAM_GDP_SIZE_MAX_HEIGHT 2160
 
 #define GDP_NODE_NB_BANK        2
 #define GDP_NODE_PER_FIELD      2
@@ -633,8 +635,8 @@ static int sti_gdp_atomic_check(struct d
 	/* src_x are in 16.16 format */
 	src_x = state->src_x >> 16;
 	src_y = state->src_y >> 16;
-	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX);
-	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX);
+	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX_WIDTH);
+	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX_HEIGHT);
 
 	format = sti_gdp_fourcc2format(fb->pixel_format);
 	if (format == -1) {
@@ -732,8 +734,8 @@ static void sti_gdp_atomic_update(struct
 	/* src_x are in 16.16 format */
 	src_x = state->src_x >> 16;
 	src_y = state->src_y >> 16;
-	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX);
-	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX);
+	src_w = clamp_val(state->src_w >> 16, 0, GAM_GDP_SIZE_MAX_WIDTH);
+	src_h = clamp_val(state->src_h >> 16, 0, GAM_GDP_SIZE_MAX_HEIGHT);
 
 	list = sti_gdp_get_free_nodes(gdp);
 	top_field = list->top_field;


Patches currently in stable-queue which might be from vincent.abriou@st.com are

queue-4.9/drm-sti-fix-gdp-size-to-support-up-to-uhd-resolution.patch