[RFC 6/6] ARM: dts: am57xx-beagle-x15-common: enable etnaviv

On Thu, Nov 17, 2016 at 8:56 PM, Nishanth Menon [off-list ref] wrote:

On 11/17/2016 08:44 PM, Robert Nelson wrote:
again.. a short commit message at least please? :)

yeah, i'll fix all those. ;)

quoted

Signed-off-by: Robert Nelson <redacted>
CC: Julien <redacted>
CC: Nishanth Menon <nm@ti.com>
CC: Tomi Valkeinen <redacted>
CC: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi

b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
index 6df7829..3bc47be 100644

--- a/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi
+++ b/arch/arm/boot/dts/am57xx-beagle-x15-common.dtsi

@@ -97,6 +97,12 @@
                #cooling-cells = <2>;
        };

+       gpu-subsystem {

A) do we want to make things clear that this is gpu subsystem for gc320?
B) How about other platforms that could equally reuse?

so the 'gpu-subsystem' comes from etnaviv:

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/display/etnaviv/etnaviv-drm.txt?id=refs/tags/v4.9-rc5

For a generic name, it's currently only tied to the etnaviv driver:

gpu-subsystem {
 compatible = "fsl,imx-gpu-subsystem";
 cores = <&gpu_2d>, <&gpu_3d>;
};

it would make sense to make that more generic, so you could tie a 2d
vivante and a imgtec/sgx 3d core..  <sad laugh> but that would require
adding a imgtec/sgx driver/bindings to the kernel mainline... </sad
laugh>

quoted

+               compatible = "ti,gc320-gpu-subsystem";
+               cores = <&bb2d>;
+               status = "okay";
+       };
+
        hdmi0: connector {
                compatible = "hdmi-connector";
                label = "hdmi";

@@ -190,6 +196,11 @@
                >;
        };
 };
+
+&bb2d {
+       status = "okay";
+};
+
 &i2c1 {
        status = "okay";
        clock-frequency = <400000>;

Regards,

-- 
Robert Nelson
https://rcn-ee.com/