Reviewed-by: Chris Zhong <zyw at rock-chips.com> On 01/22/2017 12:31 AM, John Keeping wrote: > 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 at metanate.com> > --- > Unchanged in v2 > --- > drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > index c2e0ba96e0a0..5b3068e9e8db 100644 > --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c > @@ -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) |
