71 lines
2.6 KiB
Diff
71 lines
2.6 KiB
Diff
From: Javier Viguera <javier.viguera@digi.com>
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Date: Tue, 10 Nov 2015 17:45:37 +0100
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Subject: [PATCH] mxc: gpu: use recommended values for minimum GPU frequency
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divisor
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Freescale recommends the following default minimum GPU frequency divisors
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depending on the CPU family:
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- 3 for Dual/Quad
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- 8 for DualLite/Solo
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Adapted for the external Vivante GPU driver from commit a790ad3 in linux
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git repository.
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Signed-off-by: Javier Viguera <javier.viguera@digi.com>
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---
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.../hal/os/linux/kernel/gc_hal_kernel_probe.c | 13 ++++++++++++-
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.../platform/freescale/gc_hal_kernel_platform_imx6q14.c | 2 +-
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2 files changed, 13 insertions(+), 2 deletions(-)
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diff --git a/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/gc_hal_kernel_probe.c b/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/gc_hal_kernel_probe.c
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index 93a19d51303c..71c4ea3a33bd 100644
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--- a/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/gc_hal_kernel_probe.c
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+++ b/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/gc_hal_kernel_probe.c
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@@ -54,6 +54,7 @@
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#include <linux/device.h>
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+#include <linux/of.h>
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#include <linux/slab.h>
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#include "gc_hal_kernel_linux.h"
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@@ -190,7 +191,7 @@ module_param(showArgs, int, 0644);
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static int mmu = 1;
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module_param(mmu, int, 0644);
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-static int gpu3DMinClock = 1;
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+static int gpu3DMinClock = 0;
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static int contiguousRequested = 0;
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@@ -1115,6 +1116,16 @@ static int __devinit gpu_probe(struct platform_device *pdev)
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_UpdateModuleParam(&moduleParam);
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}
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+ /* If undefined, set Freescale recommended value. Else use the min freq. */
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+ if (gpu3DMinClock == 0) {
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+ if (of_machine_is_compatible("fsl,imx6dl"))
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+ gpu3DMinClock = 8;
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+ else if (of_machine_is_compatible("fsl,imx6q"))
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+ gpu3DMinClock = 3;
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+ else
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+ gpu3DMinClock = 1;
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+ }
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+
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ret = drv_init();
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if (!ret)
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diff --git a/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/platform/freescale/gc_hal_kernel_platform_imx6q14.c b/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/platform/freescale/gc_hal_kernel_platform_imx6q14.c
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index dc7c9769ab75..0eae8262c2ce 100644
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--- a/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/platform/freescale/gc_hal_kernel_platform_imx6q14.c
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+++ b/kernel-module-imx-gpu-viv-src/hal/os/linux/kernel/platform/freescale/gc_hal_kernel_platform_imx6q14.c
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@@ -109,7 +109,7 @@ extern int unregister_thermal_notifier(struct notifier_block *nb);
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#define gcdFSL_CONTIGUOUS_SIZE (4 << 20)
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#endif
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-static int initgpu3DMinClock = 1;
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+static int initgpu3DMinClock = 0;
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module_param(initgpu3DMinClock, int, 0644);
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struct platform_device *pdevice;
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