diff options
Diffstat (limited to 'meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0068-drm-amd-display-Add-debug-option-to-disable-dmcu.patch')
-rw-r--r-- | meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0068-drm-amd-display-Add-debug-option-to-disable-dmcu.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0068-drm-amd-display-Add-debug-option-to-disable-dmcu.patch b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0068-drm-amd-display-Add-debug-option-to-disable-dmcu.patch new file mode 100644 index 00000000..a855b551 --- /dev/null +++ b/meta-v1000/recipes-kernel/linux/linux-yocto-4.14.71/0068-drm-amd-display-Add-debug-option-to-disable-dmcu.patch @@ -0,0 +1,43 @@ +From 0020aa18b2240e9649553c774ac99873b13d25f5 Mon Sep 17 00:00:00 2001 +From: Yongqiang Sun <yongqiang.sun@amd.com> +Date: Thu, 15 Dec 2016 10:50:48 -0500 +Subject: [PATCH 0068/4131] drm/amd/display: Add debug option to disable dmcu + +Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dc.h | 1 + + drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c | 3 +++ + 2 files changed, 4 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h +index 4cb1948..c7905b3 100644 +--- a/drivers/gpu/drm/amd/display/dc/dc.h ++++ b/drivers/gpu/drm/amd/display/dc/dc.h +@@ -147,6 +147,7 @@ struct dc_debug { + bool disable_dfs_bypass; + bool disable_power_gate; + bool disable_clock_gate; ++ bool disable_dmcu; + }; + + struct dc { +diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c +index c73d605..a8a2290 100644 +--- a/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c ++++ b/drivers/gpu/drm/amd/display/dc/dce/dce_link_encoder.c +@@ -1821,6 +1821,9 @@ void dce110_link_encoder_init_dmcu_backlight_settings( + uint32_t s2; + uint32_t value; + ++ if (enc->ctx->dc->debug.disable_dmcu) ++ return; ++ + bl_pwm_cntl = REG_READ(BL_PWM_CNTL); + + /* It must not be 0, so we have to restore them +-- +2.7.4 + |