From: Lee Yongjin <yongjin0.lee@samsung.com>
Date: Fri, 13 Sep 2013 05:39:19 +0000 (+0900)
Subject: dma: pl330: support the arm_exynos_dma_mcode_ops in device tree
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e65af3ee24270a59fb800b34680ac20db55844e9;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

dma: pl330: support the arm_exynos_dma_mcode_ops in device tree

This patch is dma micro code allocation in special memory area.

Change-Id: Ic40c162e3a6ec317e70d8af675304304f2e5886c
Signed-off-by: Lee Yongjin <yongjin0.lee@samsung.com>
Signed-off-by: Seokju Yoon <sukju.yoon@samsung.com>
---

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 719abf671257..86c3a449b2b1 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -1789,6 +1789,15 @@ static int dmac_alloc_resources(struct pl330_dmac *pl330)
 {
 	int chans = pl330->pcfg.num_chan;
 	int ret;
+	dma_addr_t addr;
+
+	if (pl330->ddma.dev->of_node) {
+		addr = of_dma_get_mcode_addr(pl330->ddma.dev->of_node);
+		if (addr) {
+			set_dma_ops(pl330->ddma.dev, &arm_exynos_dma_mcode_ops);
+			pl330->mcode_bus = addr;
+		}
+	}
 
 	/*
 	 * Alloc MicroCode buffer for 'chans' Channel threads.
@@ -2850,7 +2859,6 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	pd = &pl330->ddma;
 	pd->dev = &adev->dev;
 
-	pl330->mcbufsz = 0;
 
 	/* get quirk */
 	for (i = 0; i < ARRAY_SIZE(of_quirks); i++)