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disp: msm: sde: release splash memory using memblock_free

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The splash memory initialized by the bootloader needs
to be released after the first frame update. Add
memblock_free() call to release this memory that was
reserved during the kernel boot.

Change-Id: I2633305528b1767b87273d027b8a939da0cedfc4
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
This commit is contained in:
Chandan Uddaraju 2020-07-14 17:06:22 -07:00 • committed by Gerrit - the friendly Code Review server
commit 7ef5f60e6b
1 changed files with 2 additions and 0 deletions
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2
msm/sde/sde_kms.c
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@ -24,6 +24,7 @@
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/dma-buf.h>
#include <linux/memblock.h>
#include <drm/drm_atomic_uapi.h>
#include <drm/drm_probe_helper.h>
@ -817,6 +818,7 @@ static int _sde_kms_release_splash_buffer(unsigned int mem_addr,
pfn_start = mem_addr >> PAGE_SHIFT;
pfn_end = (mem_addr + splash_buffer_size) >> PAGE_SHIFT;
ret = memblock_free(mem_addr, splash_buffer_size);
if (ret) {
SDE_ERROR("continuous splash memory free failed:%d\n", ret);
return ret;