diff options
| author |   Scott Murray <scott.murray@konsulko.com> | 2020-11-04 18:08:49 -0500 |
|---|---|---|
| committer | Scott Murray <scott.murray@konsulko.com> | 2020-11-04 18:14:23 -0500 |
| commit | e1fb6fe4b011369164e0e83a5cf5f0b1f2b4cf23 (patch) | |
| tree | 1852ab6b3a97670c8d59bc194fc08d639a9820e8 /meta-agl-refhw-gen3/recipes-kernel/linux | |
| parent | c7d132ad45ac9b0326b6d4bb8f629d757336ddaa (diff) | |
Add dw-hdmi CEC IRQ muting patch
Add patch with fix for dw-hdmi IRQ issues provided by Kato Kazuomi
from Panasonic. This resolves the WARNING backtraces related to an
unhandled IRQ on boot and reading HDMI EDID.
Bug-AGL: SPEC-3658
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Change-Id: I6103bbec094d63ccabcb1ec273b73d8a5c114a84
Diffstat (limited to 'meta-agl-refhw-gen3/recipes-kernel/linux')
| -rw-r--r-- | meta-agl-refhw-gen3/recipes-kernel/linux/files/0003-rcar3-dw-hdmi-cec-mute.patch | 25 | ||||
| -rw-r--r-- | meta-agl-refhw-gen3/recipes-kernel/linux/linux-renesas_%.bbappend | 1 |
2 files changed, 26 insertions, 0 deletions
diff --git a/meta-agl-refhw-gen3/recipes-kernel/linux/files/0003-rcar3-dw-hdmi-cec-mute.patch b/meta-agl-refhw-gen3/recipes-kernel/linux/files/0003-rcar3-dw-hdmi-cec-mute.patch new file mode 100644 index 0000000..b0663ca --- /dev/null +++ b/meta-agl-refhw-gen3/recipes-kernel/linux/files/0003-rcar3-dw-hdmi-cec-mute.patch @@ -0,0 +1,25 @@ +Mute CEC IRQ in dw-hdmi driver init + +Add muting of the CEC interrupt to initialize_hdmi_rcar_ih_mutes, +which it previously did not have, unlike the original generic +initialize_hdmi_ih_mutes function. + +Author: Kato Kazuomi (加藤 一臣) <kato.kazuomi@jp.panasonic.com> +Signed-off-by: Scott Murray <scott.murray@konsulko.com> + +--- + drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +index cedae37e6d28..b4a29d3954ae 100644 +--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c ++++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +@@ -1906,6 +1906,7 @@ static void initialize_hdmi_rcar_ih_mutes(struct dw_hdmi *hdmi) + hdmi_writeb(hdmi, 0x1f, HDMI_IH_MUTE_AS_STAT0); + hdmi_writeb(hdmi, 0x3f, HDMI_IH_MUTE_PHY_STAT0); + hdmi_writeb(hdmi, 0x03, HDMI_IH_MUTE_I2CM_STAT0); ++ hdmi_writeb(hdmi, 0x7f, HDMI_IH_MUTE_CEC_STAT0); + hdmi_writeb(hdmi, 0x0f, HDMI_IH_MUTE_VP_STAT0); + hdmi_writeb(hdmi, 0x03, HDMI_IH_MUTE_I2CMPHY_STAT0); + diff --git a/meta-agl-refhw-gen3/recipes-kernel/linux/linux-renesas_%.bbappend b/meta-agl-refhw-gen3/recipes-kernel/linux/linux-renesas_%.bbappend index a9cdd0c..c1fd753 100644 --- a/meta-agl-refhw-gen3/recipes-kernel/linux/linux-renesas_%.bbappend +++ b/meta-agl-refhw-gen3/recipes-kernel/linux/linux-renesas_%.bbappend @@ -4,6 +4,7 @@ SRC_URI_append = " \ file://0001-create-r8a7795-usb-ovc-pinmux-groups.patch \ file://0001-add-agl-refhw.patch \ file://0002-add-st_asm330lhh-driver.patch \ + file://0003-rcar3-dw-hdmi-cec-mute.patch \ file://refhw-rcar.cfg \ " |