lkml.org 
[lkml]   [2017]   [Jan]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 16/26] drm/rockchip: dw-mipi-dsi: configure bias and bandgap before enable
Date
We should configure these functions before enabling them.

Signed-off-by: John Keeping <john@metanate.com>
---
Unchanged in v2
---
drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index 5b3068e9e8db..ce1e6f9a2041 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -420,6 +420,11 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
dw_mipi_dsi_phy_write(dsi, 0x18, LOOP_DIV_HIGH_SEL(dsi->feedback_div) |
HIGH_PROGRAM_EN);

+ dw_mipi_dsi_phy_write(dsi, 0x22, LOW_PROGRAM_EN |
+ BIASEXTR_SEL(BIASEXTR_127_7));
+ dw_mipi_dsi_phy_write(dsi, 0x22, HIGH_PROGRAM_EN |
+ BANDGAP_SEL(BANDGAP_96_10));
+
dw_mipi_dsi_phy_write(dsi, 0x20, POWER_CONTROL | INTERNAL_REG_CURRENT |
BIAS_BLOCK_ON | BANDGAP_ON);

@@ -429,10 +434,6 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
SETRD_MAX | POWER_MANAGE |
TER_RESISTORS_ON);

- dw_mipi_dsi_phy_write(dsi, 0x22, LOW_PROGRAM_EN |
- BIASEXTR_SEL(BIASEXTR_127_7));
- dw_mipi_dsi_phy_write(dsi, 0x22, HIGH_PROGRAM_EN |
- BANDGAP_SEL(BANDGAP_96_10));

dw_mipi_dsi_phy_write(dsi, 0x70, TLP_PROGRAM_EN | 0xf);
dw_mipi_dsi_phy_write(dsi, 0x71, THS_PRE_PROGRAM_EN | 0x55);
--
2.11.0.197.gb556de5.dirty
\
 
 \ /
  Last update: 2017-01-21 17:32    [W:0.392 / U:0.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site