From cb9f8e6a737e60f460896111b32bbebc45aa1cd1 Mon Sep 17 00:00:00 2001
From: Heiko Schocher <hs@denx.de>
Date: Mon, 20 Apr 2015 07:53:48 +0200
Subject: [PATCH] video, ipu: make ldb clock frequency overwritable through
board code
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>
Tested-by: Eric Nelson <eric.nelson@boundarydevices.com>
---
arch/arm/include/asm/imx-common/video.h | 1 +
drivers/video/ipu.h | 1 -
drivers/video/ipu_common.c | 8 ++++++++
3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/imx-common/video.h b/arch/arm/include/asm/imx-common/video.h
index 1a907d44e4..cad5f861cb 100644
--- a/arch/arm/include/asm/imx-common/video.h
+++ b/arch/arm/include/asm/imx-common/video.h
@@ -26,4 +26,5 @@ extern struct display_info_t const displays[];
extern size_t display_count;
#endif
+int ipu_set_ldb_clock(int rate);
#endif
diff --git a/drivers/video/ipu.h b/drivers/video/ipu.h
index 091b58fb47..348be58bf6 100644
--- a/drivers/video/ipu.h
+++ b/drivers/video/ipu.h
@@ -265,5 +265,4 @@ int ipu_dp_init(ipu_channel_t channel, uint32_t in_pixel_fmt,
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);
-
#endif
diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c
index 8ebb205f19..9f85102915 100644
--- a/drivers/video/ipu_common.c
+++ b/drivers/video/ipu_common.c
@@ -1198,3 +1198,11 @@ ipu_color_space_t format_to_colorspace(uint32_t fmt)
}
return RGB;
}
+
+/* should be removed when clk framework is availiable */
+int ipu_set_ldb_clock(int rate)
+{
+ ldb_clk.rate = rate;
+
+ return 0;
+}
--
2.39.5