mirror of
https://github.com/Ysurac/openmptcprouter.git
synced 2025-03-09 15:40:20 +00:00
68 lines
1.9 KiB
Diff
68 lines
1.9 KiB
Diff
From 0a8f36a231341ac5d66c186bcb1600a5abc00132 Mon Sep 17 00:00:00 2001
|
|
From: chunhui dai <chunhui.dai@mediatek.com>
|
|
Date: Wed, 3 Oct 2018 11:41:44 +0800
|
|
Subject: [PATCH 30/77] drm/mediatek: add clock factor for different IC
|
|
|
|
different IC has different clock designed in HDMI, the factor for
|
|
calculate clock should be different. Usinng the data in of_node
|
|
to find this factor.
|
|
|
|
Reviewed-by: CK Hu <ck.hu@mediatek.com>
|
|
Signed-off-by: chunhui dai <chunhui.dai@mediatek.com>
|
|
---
|
|
drivers/gpu/drm/mediatek/mtk_dpi.c | 24 +++++++++++++++---------
|
|
1 file changed, 15 insertions(+), 9 deletions(-)
|
|
|
|
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
|
|
index 0ce4b61efaeb..0dbe9345fa2e 100644
|
|
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
|
|
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
|
|
@@ -113,6 +113,7 @@ struct mtk_dpi_yc_limit {
|
|
};
|
|
|
|
struct mtk_dpi_conf {
|
|
+ unsigned int (*cal_factor)(int clock);
|
|
u32 reg_h_fre_con;
|
|
bool edge_sel_en;
|
|
};
|
|
@@ -431,15 +432,7 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
|
|
unsigned int factor;
|
|
|
|
/* let pll_rate can fix the valid range of tvdpll (1G~2GHz) */
|
|
-
|
|
- if (mode->clock <= 27000)
|
|
- factor = 3 << 4;
|
|
- else if (mode->clock <= 84000)
|
|
- factor = 3 << 3;
|
|
- else if (mode->clock <= 167000)
|
|
- factor = 3 << 2;
|
|
- else
|
|
- factor = 3 << 1;
|
|
+ factor = dpi->conf->cal_factor(mode->clock);
|
|
drm_display_mode_to_videomode(mode, &vm);
|
|
pll_rate = vm.pixelclock * factor;
|
|
|
|
@@ -653,7 +646,20 @@ static const struct component_ops mtk_dpi_component_ops = {
|
|
.unbind = mtk_dpi_unbind,
|
|
};
|
|
|
|
+static unsigned int mt8173_calculate_factor(int clock)
|
|
+{
|
|
+ if (clock <= 27000)
|
|
+ return 3 << 4;
|
|
+ else if (clock <= 84000)
|
|
+ return 3 << 3;
|
|
+ else if (clock <= 167000)
|
|
+ return 3 << 2;
|
|
+ else
|
|
+ return 3 << 1;
|
|
+}
|
|
+
|
|
static const struct mtk_dpi_conf mt8173_conf = {
|
|
+ .cal_factor = mt8173_calculate_factor,
|
|
.reg_h_fre_con = 0xe0,
|
|
};
|
|
|
|
--
|
|
2.19.1
|
|
|