openwrt/target/linux/bcm27xx/patches-5.10/950-0577-vc4-drm-hdmi-Handle-case-when-bvb-clock-is-null.patch
Hauke Mehrtens 9703a2adcc kernel: Refresh on 5.10.138
Refresh all patches on top of kernel 5.10.138.

The following patches were applied upstream:
 bcm27xx/patches-5.10/950-0311-drm-vc4-Adopt-the-dma-configuration-from-the-HVS-or-.patch
 bcm27xx/patches-5.10/950-0317-vc4_hdmi-Remove-firmware-logic-for-MAI-threshold-set.patch
 bcm27xx/patches-5.10/950-0346-drm-vc4-A-present-but-empty-dmas-disables-audio.patch
 bcm27xx/patches-5.10/950-0354-drm-vc4-Add-the-2711-HVS-as-a-suitable-DMA-node.patch
 bcm27xx/patches-5.10/950-0413-drm-vc4-hdmi-Don-t-access-the-connector-state-in-res.patch
 bcm27xx/patches-5.10/950-0505-vc4-drm-Avoid-full-hdmi-audio-fifo-writes.patch
 bcm27xx/patches-5.10/950-0512-vc4-drm-vc4_plane-Remove-subpixel-positioning-check.patch
 bcm27xx/patches-5.10/950-0560-drm-vc4-drv-Remove-the-DSI-pointer-in-vc4_drv.patch
 bcm27xx/patches-5.10/950-0561-drm-vc4-dsi-Use-snprintf-for-the-PHY-clocks-instead-.patch
 bcm27xx/patches-5.10/950-0562-drm-vc4-dsi-Introduce-a-variant-structure.patch
 bcm27xx/patches-5.10/950-0565-drm-vc4-Correct-pixel-order-for-DSI0.patch
 bcm27xx/patches-5.10/950-0566-drm-vc4-Register-dsi0-as-the-correct-vc4-encoder-typ.patch
 bcm27xx/patches-5.10/950-0567-drm-vc4-Fix-dsi0-interrupt-support.patch
 bcm27xx/patches-5.10/950-0568-drm-vc4-Add-correct-stop-condition-to-vc4_dsi_encode.patch
 bcm27xx/patches-5.10/950-0647-drm-vc4-Fix-timings-for-interlaced-modes.patch
 bcm27xx/patches-5.10/950-0695-drm-vc4-Fix-margin-calculations-for-the-right-bottom.patch

Upstream sets the pixel clock to 340MHz now, do not set it to 600MHz any more.
 bcm27xx/patches-5.10/950-0576-drm-vc4-hdmi-Raise-the-maximum-clock-rate.patch

Fixes: 89956c6532 ("kernel: bump 5.10 to 5.10.138")
Fixes: 4209c33ae2 ("kernel: bump 5.10 to 5.10.137")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2022-08-28 16:56:01 +02:00

46 lines
1.8 KiB
Diff

From 33e8e066af31c3af1d18d615f5e8ab5e528e0000 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Wed, 21 Apr 2021 15:15:42 +0100
Subject: [PATCH] vc4/drm: hdmi: Handle case when bvb clock is null
Pi2/3 have no bvb clock but want the other clocks to remain enabled here
See: https://github.com/raspberrypi/linux/issues/4299
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -610,7 +610,8 @@ static void vc4_hdmi_encoder_post_crtc_p
HDMI_READ(HDMI_VID_CTL) & ~VC4_HD_VID_CTL_ENABLE);
clk_disable_unprepare(vc4_hdmi->pixel_bvb_clock);
- clk_request_done(vc4_hdmi->bvb_req);
+ if (vc4_hdmi->bvb_req)
+ clk_request_done(vc4_hdmi->bvb_req);
clk_disable_unprepare(vc4_hdmi->hsm_clock);
clk_request_done(vc4_hdmi->hsm_req);
clk_disable_unprepare(vc4_hdmi->pixel_clock);
@@ -934,7 +935,8 @@ static void vc4_hdmi_encoder_pre_crtc_co
else
bvb_rate = 75000000;
- vc4_hdmi->bvb_req = clk_request_start(vc4_hdmi->pixel_bvb_clock, bvb_rate);
+ if (vc4_hdmi->pixel_bvb_clock)
+ vc4_hdmi->bvb_req = clk_request_start(vc4_hdmi->pixel_bvb_clock, bvb_rate);
if (IS_ERR(vc4_hdmi->bvb_req)) {
DRM_ERROR("Failed to set pixel bvb clock rate: %ld\n", PTR_ERR(vc4_hdmi->bvb_req));
clk_request_done(vc4_hdmi->hsm_req);
@@ -946,7 +948,8 @@ static void vc4_hdmi_encoder_pre_crtc_co
ret = clk_prepare_enable(vc4_hdmi->pixel_bvb_clock);
if (ret) {
DRM_ERROR("Failed to turn on pixel bvb clock: %d\n", ret);
- clk_request_done(vc4_hdmi->bvb_req);
+ if (vc4_hdmi->bvb_req)
+ clk_request_done(vc4_hdmi->bvb_req);
clk_request_done(vc4_hdmi->hsm_req);
clk_disable_unprepare(vc4_hdmi->hsm_clock);
clk_disable_unprepare(vc4_hdmi->pixel_clock);