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authorJakub Kicinski <kuba@kernel.org>2023-10-19 13:13:03 -0700
committerJakub Kicinski <kuba@kernel.org>2023-10-19 13:29:01 -0700
commit041c3466f39d7073bbc7fb91c4e5d14170d5eb08 (patch)
treec74b553ca90bf3487afc3b04e874fda81f309a08 /drivers/gpu/drm/msm/dsi/dsi_host.c
parentf2cab25b0eb7bd735459059e2eb8d21d2569c41d (diff)
parentce55c22ec8b223a90ff3e084d842f73cfba35588 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. net/mac80211/key.c 02e0e426a2fb ("wifi: mac80211: fix error path key leak") 2a8b665e6bcc ("wifi: mac80211: remove key_mtx") 7d6904bf26b9 ("Merge wireless into wireless-next") https://lore.kernel.org/all/20231012113648.46eea5ec@canb.auug.org.au/ Adjacent changes: drivers/net/ethernet/ti/Kconfig a602ee3176a8 ("net: ethernet: ti: Fix mixed module-builtin object") 98bdeae9502b ("net: cpmac: remove driver to prepare for platform removal") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/msm/dsi/dsi_host.c')
-rw-r--r--drivers/gpu/drm/msm/dsi/dsi_host.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 5d9ec27c89d3..3d6fb708dc22 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1082,9 +1082,21 @@ static void dsi_wait4video_done(struct msm_dsi_host *msm_host)
static void dsi_wait4video_eng_busy(struct msm_dsi_host *msm_host)
{
+ u32 data;
+
if (!(msm_host->mode_flags & MIPI_DSI_MODE_VIDEO))
return;
+ data = dsi_read(msm_host, REG_DSI_STATUS0);
+
+ /* if video mode engine is not busy, its because
+ * either timing engine was not turned on or the
+ * DSI controller has finished transmitting the video
+ * data already, so no need to wait in those cases
+ */
+ if (!(data & DSI_STATUS0_VIDEO_MODE_ENGINE_BUSY))
+ return;
+
if (msm_host->power_on && msm_host->enabled) {
dsi_wait4video_done(msm_host);
/* delay 4 ms to skip BLLP */
@@ -1894,10 +1906,9 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
}
msm_host->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
- if (msm_host->irq < 0) {
- ret = msm_host->irq;
- dev_err(&pdev->dev, "failed to get irq: %d\n", ret);
- return ret;
+ if (!msm_host->irq) {
+ dev_err(&pdev->dev, "failed to get irq\n");
+ return -EINVAL;
}
/* do not autoenable, will be enabled later */