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| author | Wen He <wen.he_1@nxp.com> | 2019-09-10 15:59:13 +0800 |
|---|---|---|
| committer | Liviu Dudau <liviu.dudau@arm.com> | 2019-10-08 16:13:36 +0100 |
| commit | d298e6a27a81362af4b755db2e89469c2a609cd8 (patch) | |
| tree | 7ee233b3966bedc8fd8e14c3428354ed61057635 /drivers/gpu/drm/arm/malidp_drv.c | |
| parent | 354c2d310082d1c384213ba76c3757dd3cd8755d (diff) | |
| download | linux-d298e6a27a81362af4b755db2e89469c2a609cd8.tar.gz linux-d298e6a27a81362af4b755db2e89469c2a609cd8.tar.bz2 linux-d298e6a27a81362af4b755db2e89469c2a609cd8.zip | |
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_drv.c')
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_drv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c index 333b88a5efb0..8a76315aaa0f 100644 --- a/drivers/gpu/drm/arm/malidp_drv.c +++ b/drivers/gpu/drm/arm/malidp_drv.c @@ -817,6 +817,12 @@ static int malidp_bind(struct device *dev) malidp->core_id = version; + ret = of_property_read_u32(dev->of_node, + "arm,malidp-arqos-value", + &hwdev->arqos_value); + if (ret) + hwdev->arqos_value = 0x0; + /* set the number of lines used for output of RGB data */ ret = of_property_read_u8_array(dev->of_node, "arm,malidp-output-port-lines", |