From 7ef5f60e6bd7eb6a9879f524e19e8ee919f569dd Mon Sep 17 00:00:00 2001
From: Chandan Uddaraju <chandanu@codeaurora.org>
Date: Tue, 14 Jul 2020 17:06:22 -0700
Subject: [PATCH] disp: msm: sde: release splash memory using memblock_free

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>
---
 msm/sde/sde_kms.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/msm/sde/sde_kms.c b/msm/sde/sde_kms.c
index 4cde404853eb..a7cfe88caeef 100644
--- a/msm/sde/sde_kms.c
+++ b/msm/sde/sde_kms.c
@@ -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;