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From: Eddie James <eajames@linux.ibm.com>
To: openbmc@lists.ozlabs.org
Cc: joel@jms.id.au, jae.hyun.yoo@linux.intel.com
Subject: [PATCH dev-5.0 v4 6/7] ARM: dts: witherspoon: Enable video engine
Date: Tue,  2 Apr 2019 02:42:29 +0000	[thread overview]
Message-ID: <1554172950-2072-7-git-send-email-eajames@linux.ibm.com> (raw)
In-Reply-To: <1554172950-2072-1-git-send-email-eajames@linux.ibm.com>

Enable the video engine and add it's optional reserved memory region.
Use 32MB for the reserved memory since the video engine could need up to
two 1920x1200@32bpp source buffers.

Source buffers: 2 * 1920 * 1200 * 4 = 18432000 bytes
In addition, the V4L2 subsystem will allocate any number of compression
buffers, each at most 1/8th the size of the source buffer.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
 arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
index 1cdc96d..e09863c 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
@@ -33,6 +33,13 @@
 			compatible = "shared-dma-pool";
 			reusable;
 		};
+
+		video_engine_memory: jpegbuffer {
+			size = <0x02000000>;	/* 32MM */
+			alignment = <0x01000000>;
+			compatible = "shared-dma-pool";
+			reusable;
+		};
 	};
 
 	gpio-keys {
@@ -664,4 +671,9 @@
 	status = "okay";
 };
 
+&video {
+	status = "okay";
+	memory-region = <&video_engine_memory>;
+};
+
 #include "ibm-power9-dual.dtsi"
-- 
1.8.3.1

  parent reply	other threads:[~2019-04-02  2:42 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-02  2:42 [PATCH dev-5.0 v4 0/7] Enable video engine Eddie James
2019-04-02  2:42 ` [PATCH dev-5.0 v4 1/7] media: platform: Aspeed: Remove use of reset line Eddie James
2019-04-02  2:42 ` [PATCH dev-5.0 v4 2/7] media: platform: Aspeed: Make reserved memory optional Eddie James
2019-04-02  2:42 ` [PATCH dev-5.0 v4 3/7] media: dt-bindings: aspeed-video: Add missing memory-region property Eddie James
2019-04-02  2:42 ` [PATCH dev-5.0 v4 4/7] clk: Aspeed: Setup video engine clocking Eddie James
2019-04-02  2:42 ` [PATCH dev-5.0 v4 5/7] ARM: dts: aspeed-g5: Add video engine Eddie James
2019-04-02  2:42 ` Eddie James [this message]
2019-04-02  2:42 ` [PATCH dev-5.0 v4 7/7] ARM: dts: romulus: Enable " Eddie James
2019-04-03  6:34 ` [PATCH dev-5.0 v4 0/7] " Joel Stanley
2019-04-03 14:44   ` Eddie James
2019-04-03 16:15     ` Jae Hyun Yoo

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