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drm/rockchip: dw-mipi-dsi: ensure PHY is reset

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Also don't power up the DSI host at this point since this is not
necessary in order to configure the PHY and we do so later when
selecting video or command mode.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20170224125506.21533-15-john@metanate.com
This commit is contained in:
John Keeping 2017-02-24 12:54:57 +00:00 committed by Sean Paul
parent 1bef24bae2
commit efe83cee34
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/rockchip/dw-mipi-dsi.c
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@ -397,7 +397,10 @@ static int dw_mipi_dsi_phy_init(struct dw_mipi_dsi *dsi)
return testdin;
}
dsi_write(dsi, DSI_PWR_UP, POWERUP);
/* Start by clearing PHY state */
dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLR);
dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
dw_mipi_dsi_phy_write(dsi, 0x10, BYPASS_VCO_RANGE |
VCO_RANGE_CON_SEL(vco) |