linux-kernel - linux-next: manual merge of the drm tree with the drm-misc-fixes tree

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Date:   Thu, 17 Jun 2021 11:42:11 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Dave Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Intel Graphics <intel-gfx@...ts.freedesktop.org>,
        DRI <dri-devel@...ts.freedesktop.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Maxime Ripard <maxime@...no.tech>
Subject: linux-next: manual merge of the drm tree with the drm-misc-fixes
 tree

Hi all,

Today's linux-next merge of the drm tree got a conflict in:

  drivers/gpu/drm/vc4/vc4_hdmi.c

between commit:

  9984d6664ce9 ("drm/vc4: hdmi: Make sure the controller is powered in detect")

from the drm-misc-fixes tree and commit:

  6800234ceee0 ("drm/vc4: hdmi: Convert to gpiod")

from the drm tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc drivers/gpu/drm/vc4/vc4_hdmi.c
index 8106b5634fe1,3c4cc133e3df..000000000000
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@@ -159,12 -166,9 +166,11 @@@ vc4_hdmi_connector_detect(struct drm_co
  	struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector);
  	bool connected = false;
  
 +	WARN_ON(pm_runtime_resume_and_get(&vc4_hdmi->pdev->dev));
 +
- 	if (vc4_hdmi->hpd_gpio) {
- 		if (gpio_get_value_cansleep(vc4_hdmi->hpd_gpio) ^
- 		    vc4_hdmi->hpd_active_low)
- 			connected = true;
+ 	if (vc4_hdmi->hpd_gpio &&
+ 	    gpiod_get_value_cansleep(vc4_hdmi->hpd_gpio)) {
+ 		connected = true;
  	} else if (drm_probe_ddc(vc4_hdmi->ddc)) {
  		connected = true;
  	} else if (HDMI_READ(HDMI_HOTPLUG) & VC4_HDMI_HOTPLUG_CONNECTED) {
@@@ -787,16 -942,26 +945,18 @@@ static void vc4_hdmi_encoder_pre_crtc_c
  		return;
  	}
  
 -	ret = clk_prepare_enable(vc4_hdmi->hsm_clock);
 -	if (ret) {
 -		DRM_ERROR("Failed to turn on HSM clock: %d\n", ret);
 -		clk_disable_unprepare(vc4_hdmi->pixel_clock);
 -		return;
 -	}
 -
  	vc4_hdmi_cec_update_clk_div(vc4_hdmi);
  
- 	/*
- 	 * FIXME: When the pixel freq is 594MHz (4k60), this needs to be setup
- 	 * at 300MHz.
- 	 */
- 	ret = clk_set_min_rate(vc4_hdmi->pixel_bvb_clock,
- 			       (hsm_rate > VC4_HSM_MID_CLOCK ? 150000000 : 75000000));
+ 	if (pixel_rate > 297000000)
+ 		bvb_rate = 300000000;
+ 	else if (pixel_rate > 148500000)
+ 		bvb_rate = 150000000;
+ 	else
+ 		bvb_rate = 75000000;
+ 
+ 	ret = clk_set_min_rate(vc4_hdmi->pixel_bvb_clock, bvb_rate);
  	if (ret) {
  		DRM_ERROR("Failed to set pixel bvb clock rate: %d\n", ret);
 -		clk_disable_unprepare(vc4_hdmi->hsm_clock);
  		clk_disable_unprepare(vc4_hdmi->pixel_clock);
  		return;
  	}

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