Hi John,
Thank you for the patch.
On Monday 16 Jan 2017 16:52:51 John Stultz wrote:
> Thus this patch changes the EDID probing logic so that we
> re-use the __adv7511_power_on/off() calls instead of duplciating
> logic.
>
> This does change behavior slightly as it adds the HPD signal
> pulse to the EDID probe path, but Archit has had a patch to
> add HPD signal pulse to the EDID probe path before, so this
> should address the cases where that helped.
You should also mentioned that the power off path now calls
regcache_mark_dirty(). Apart from that,
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: David Airlie <airlied@xxxxxxxx>
> Cc: Archit Taneja <architt@xxxxxxxxxxxxxx>
> Cc: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
> Cc: Lars-Peter Clausen <lars@xxxxxxxxxx>
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
> ---
> v4: Reworded commit message, focusing on re-use and HPD pulse
> behavior change.
> ---
> drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 17 +++--------------
> 1 file changed, 3 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index 12f2876..d216f61
> 100644
> --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
> @@ -573,24 +573,13 @@ static int adv7511_get_modes(struct adv7511 *adv7511,
> unsigned int count;
>
> /* Reading the EDID only works if the device is powered */
> - if (!adv7511->powered) {
> - regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
> - ADV7511_POWER_POWER_DOWN, 0);
> - if (adv7511->i2c_main->irq) {
> - regmap_write(adv7511->regmap,
ADV7511_REG_INT_ENABLE(0),
> - ADV7511_INT0_EDID_READY);
> - regmap_write(adv7511->regmap,
ADV7511_REG_INT_ENABLE(1),
> - ADV7511_INT1_DDC_ERROR);
> - }
> - adv7511->current_edid_segment = -1;
> - }
> + if (!adv7511->powered)
> + __adv7511_power_on(adv7511);
>
> edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
>
> if (!adv7511->powered)
> - regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
> - ADV7511_POWER_POWER_DOWN,
> - ADV7511_POWER_POWER_DOWN);
> + __adv7511_power_off(adv7511);
>
> kfree(adv7511->edid);
> adv7511->edid = edid;
--
Regards,
Laurent Pinchart
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