[U-Boot] [PATCH] video, ipu: make ldb clock frequenz overwriteable through board code

[Heiko Schocher <hs@denx.de>]

the ldb clock can be setup in board code (for example set through PLL5).
Update the ldb_clock rate also through board code.

This should be removed, if a clock framework is availiable.

Signed-off-by: Heiko Schocher <hs@denx.de>
---

 drivers/video/ipu.h        |  1 +
 drivers/video/ipu_common.c | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/video/ipu.h b/drivers/video/ipu.h
index 091b58f..f13934f 100644
--- a/drivers/video/ipu.h
+++ b/drivers/video/ipu.h
@@ -266,4 +266,5 @@ void ipu_dp_uninit(ipu_channel_t channel);
 void ipu_dp_dc_disable(ipu_channel_t channel, unsigned char swap);
 ipu_color_space_t format_to_colorspace(uint32_t fmt);
 
+int ipu_set_ldb_clock(int rate);
 #endif
diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c
index 1a209d4..dc054bc 100644
--- a/drivers/video/ipu_common.c
+++ b/drivers/video/ipu_common.c
@@ -1198,3 +1198,14 @@ ipu_color_space_t format_to_colorspace(uint32_t fmt)
 	}
 	return RGB;
 }
+
+/* should removed when clk framework is availiable */
+int ipu_set_ldb_clock(int rate)
+{
+	if (g_ldb_clk == NULL)
+		return -ENOENT;
+
+	g_ldb_clk->rate = rate;
+
+	return 0;
+}
-- 
2.1.0