This is a note to let you know that I've just added the patch titled
pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pmdomain-imx8mp-blk-ctrl-imx8mp_blk-add-fdcc-clock-t.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e5846bc9f883e20942dd00e5db348e6f9a238940
Author: Adam Ford <aford173@xxxxxxxxx>
Date: Sat Feb 3 10:52:44 2024 -0600
pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
[ Upstream commit 697624ee8ad557ab5417f985d2c804241a7ad30d ]
According to i.MX8MP RM and HDMI ADD, the fdcc clock is part of
hdmi rx verification IP that should not enable for HDMI TX.
But actually if the clock is disabled before HDMI/LCDIF probe,
LCDIF will not get pixel clock from HDMI PHY and print the error
logs:
[CRTC:39:crtc-2] vblank wait timed out
WARNING: CPU: 2 PID: 9 at drivers/gpu/drm/drm_atomic_helper.c:1634 drm_atomic_helper_wait_for_vblanks.part.0+0x23c/0x260
Add fdcc clock to LCDIF and HDMI TX power domains to fix the issue.
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
Reviewed-by: Jacky Bai <ping.bai@xxxxxxx>
Signed-off-by: Sandor Yu <Sandor.yu@xxxxxxx>
Link: https://lore.kernel.org/r/20240203165307.7806-5-aford173@xxxxxxxxx
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/pmdomain/imx/imx8mp-blk-ctrl.c b/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
index c6ac32c1a8c17..31693add7d633 100644
--- a/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
+++ b/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
@@ -55,7 +55,7 @@ struct imx8mp_blk_ctrl_domain_data {
const char *gpc_name;
};
-#define DOMAIN_MAX_CLKS 2
+#define DOMAIN_MAX_CLKS 3
#define DOMAIN_MAX_PATHS 3
struct imx8mp_blk_ctrl_domain {
@@ -457,8 +457,8 @@ static const struct imx8mp_blk_ctrl_domain_data imx8mp_hdmi_domain_data[] = {
},
[IMX8MP_HDMIBLK_PD_LCDIF] = {
.name = "hdmiblk-lcdif",
- .clk_names = (const char *[]){ "axi", "apb" },
- .num_clks = 2,
+ .clk_names = (const char *[]){ "axi", "apb", "fdcc" },
+ .num_clks = 3,
.gpc_name = "lcdif",
.path_names = (const char *[]){"lcdif-hdmi"},
.num_paths = 1,
@@ -483,8 +483,8 @@ static const struct imx8mp_blk_ctrl_domain_data imx8mp_hdmi_domain_data[] = {
},
[IMX8MP_HDMIBLK_PD_HDMI_TX] = {
.name = "hdmiblk-hdmi-tx",
- .clk_names = (const char *[]){ "apb", "ref_266m" },
- .num_clks = 2,
+ .clk_names = (const char *[]){ "apb", "ref_266m", "fdcc" },
+ .num_clks = 3,
.gpc_name = "hdmi-tx",
},
[IMX8MP_HDMIBLK_PD_HDMI_TX_PHY] = {
