[U-Boot] [u-boot] [v4] armv8: ls1028ardb: enable DisplayPort Power support

Wen He wen.he_1 at nxp.com
Mon Nov 18 05:21:53 UTC 2019



> -----Original Message-----
> From: Jagdish Gediya <jagdish.gediya at nxp.com>
> Sent: 2019年11月18日 12:50
> To: Wen He <wen.he_1 at nxp.com>; u-boot at lists.denx.de;
> u-boot at linux.nxdi.nxp.com
> Cc: Wen He <wen.he_1 at nxp.com>
> Subject: RE: [u-boot] [v4] armv8: ls1028ardb: enable DisplayPort Power
> support
> 
> Hi Wen,
> 
> > -----Original Message-----
> > From: u-boot-bounces at linux.nxdi.nxp.com <u-boot-
> > bounces at linux.nxdi.nxp.com> On Behalf Of Wen He
> > Sent: Wednesday, November 6, 2019 1:20 PM
> > To: u-boot at lists.denx.de; u-boot at linux.nxdi.nxp.com
> > Cc: Wen He <wen.he_1 at nxp.com>
> > Subject: [u-boot] [v4] armv8: ls1028ardb: enable DisplayPort Power
> > support
> >
> > Enable DP_PWR signal to power the DP to HDMI converter cable.
> >
> > Signed-off-by: Wen He <wen.he_1 at nxp.com>
> > ---
> >  board/freescale/ls1028a/ls1028a.c | 14 ++++++++++++++
> > include/configs/ls1028a_common.h  |  3 +++
> >  2 files changed, 17 insertions(+)
> >
> > diff --git a/board/freescale/ls1028a/ls1028a.c
> > b/board/freescale/ls1028a/ls1028a.c
> > index 095971448f..c71ed21e9f 100644
> > --- a/board/freescale/ls1028a/ls1028a.c
> > +++ b/board/freescale/ls1028a/ls1028a.c
> > @@ -83,6 +83,20 @@ int board_init(void)
> >  		dm_i2c_write(dev, 0x0b, &val, 1);
> >  #endif
> >
> Remove above unnecessary blank line.
> > +#endif
> > +
> > +#if defined(CONFIG_TARGET_LS1028ARDB)
> > +	u8 reg;
> > +
> > +	reg = QIXIS_READ(brdcfg[4]);
> > +	/*
> > +	 * Field | Function
> > +	 * 3     | DisplayPort Power Enable (net DP_PWR_EN):
> > +	 * DPPWR | 0= DP_PWR is enabled.
> > +	 */
> > +	reg &= ~(DP_PWD_EN_DEFAULT_MASK);
> > +	QIXIS_WRITE(brdcfg[4], reg);
> > +
> Remove above unnecessary blank line too.

Understand, thanks.

Best Regards,
Wen
> >  #endif
> 
> --Jagdish


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