diff options
| author | Wen He <wen.he_1@nxp.com> | 2019-09-10 10:59:13 +0300 |
|---|---|---|
| committer | Liviu Dudau <liviu.dudau@arm.com> | 2019-10-08 18:13:36 +0300 |
| commit | d298e6a27a81362af4b755db2e89469c2a609cd8 (patch) | |
| tree | 7ee233b3966bedc8fd8e14c3428354ed61057635 /drivers/gpu/drm/arm/malidp_hw.c | |
| parent | 354c2d310082d1c384213ba76c3757dd3cd8755d (diff) | |
| download | linux-d298e6a27a81362af4b755db2e89469c2a609cd8.tar.xz | |
drm/arm/mali-dp: Add display QoS interface configuration for Mali DP500
Configure the display Quality of service (QoS) levels priority if the
optional property node "arm,malidp-aqros-value" is defined in DTS file.
QoS signaling using AQROS and AWQOS AXI interface signals, the AQROS is
driven from the "RQOS" register, so needed to program the RQOS register
to avoid the high resolutions flicker issue on the LS1028A platform.
Signed-off-by: Wen He <wen.he_1@nxp.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190910075913.17650-2-wen.he_1@nxp.com
Diffstat (limited to 'drivers/gpu/drm/arm/malidp_hw.c')
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_hw.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c index bd8265f02e0b..ca570b135478 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -379,6 +379,15 @@ static void malidp500_modeset(struct malidp_hw_device *hwdev, struct videomode * malidp_hw_setbits(hwdev, MALIDP_DISP_FUNC_ILACED, MALIDP_DE_DISPLAY_FUNC); else malidp_hw_clearbits(hwdev, MALIDP_DISP_FUNC_ILACED, MALIDP_DE_DISPLAY_FUNC); + + /* + * Program the RQoS register to avoid high resolutions flicker + * issue on the LS1028A. + */ + if (hwdev->arqos_value) { + val = hwdev->arqos_value; + malidp_hw_setbits(hwdev, val, MALIDP500_RQOS_QUALITY); + } } int malidp_format_get_bpp(u32 fmt) |