[meta-freescale] [PATCH 2/2][dizzy-next] linux-imx: add clock patch for T1.0 version of i.MX6Q

[Gary Bisson]

A divider was still set to 4 instead of forcing it to 1 as those video
dividers weren't working on early revisions of the SoC.

Signed-off-by: Gary Bisson <bisson.gary at gmail.com>
---
 ...6q-fix-video-divider-for-revision-1.0-of-.patch | 33 ++++++++++++++++++++++
 recipes-kernel/linux/linux-imx_3.10.17.bb          |  2 ++
 2 files changed, 35 insertions(+)
 create mode 100644 recipes-kernel/linux/linux-imx-3.10.17/0001-ARM-clk-imx6q-fix-video-divider-for-revision-1.0-of-.patch

diff --git a/recipes-kernel/linux/linux-imx-3.10.17/0001-ARM-clk-imx6q-fix-video-divider-for-revision-1.0-of-.patch b/recipes-kernel/linux/linux-imx-3.10.17/0001-ARM-clk-imx6q-fix-video-divider-for-revision-1.0-of-.patch
new file mode 100644
index 0000000..bcddb16
--- /dev/null
+++ b/recipes-kernel/linux/linux-imx-3.10.17/0001-ARM-clk-imx6q-fix-video-divider-for-revision-1.0-of-.patch
@@ -0,0 +1,33 @@
+From ffcd8b98f6ba3a2b7a4aecc1e5e454de5fa5c4c3 Mon Sep 17 00:00:00 2001
+From: Gary Bisson <bisson.gary at gmail.com>
+Date: Tue, 2 Dec 2014 22:11:14 -0800
+Subject: [PATCH] ARM: clk-imx6q: fix video divider for revision 1.0 of i.MX6q
+
+As post dividers do not work on i.MX6Q revision 1.0 they must be fixed
+to 1. As the table index was wrong, a divider a of 4 could still be
+requested which implied the clock not to be set properly. This is the
+root cause of the HDMI not working at high resolution on T1.0 version of
+the SoC, giving the following error:
+mxc_sdc_fb fb.27: timeout when waiting for flip irq
+
+Signed-off-by: Gary Bisson <bisson.gary at gmail.com>
+---
+ arch/arm/mach-imx/clk-imx6q.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
+index e09b1e8..1e5c410 100644
+--- a/arch/arm/mach-imx/clk-imx6q.c
++++ b/arch/arm/mach-imx/clk-imx6q.c
+@@ -279,7 +279,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
+ 		post_div_table[1].div = 1;
+ 		post_div_table[2].div = 1;
+ 		video_div_table[1].div = 1;
+-		video_div_table[2].div = 1;
++		video_div_table[3].div = 1;
+ 	};
+ 
+ 	/*                   type                               name         parent_name  base     div_mask */
+-- 
+2.1.3
+
diff --git a/recipes-kernel/linux/linux-imx_3.10.17.bb b/recipes-kernel/linux/linux-imx_3.10.17.bb
index cae1489..143eaab 100644
--- a/recipes-kernel/linux/linux-imx_3.10.17.bb
+++ b/recipes-kernel/linux/linux-imx_3.10.17.bb
@@ -15,4 +15,6 @@ SRCBRANCH = "imx_3.10.17_1.0.0_ga"
 SRCREV = "33597e348b2d60dd5c71890ef7b7d3d3fd6e4e97"
 LOCALVERSION = "-1.0.2_ga"
 
+SRC_URI += "file://0001-ARM-clk-imx6q-fix-video-divider-for-revision-1.0-of-.patch"
+
 COMPATIBLE_MACHINE = "(mx6)"
-- 
2.1.3