From: Markus Mayer <mmayer@broadcom.com>
Date: Tue, 12 Feb 2019 01:24:41 +0000 (-0800)
Subject: memory: brcmstb: dpfe: use msleep() over udelay()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7ccd2ffce0d4a180172c984ca7266d056d6d4b11;p=linux.git

memory: brcmstb: dpfe: use msleep() over udelay()

To be more "scheduler friendly", we use msleep() rather than udelay()
while we wait for the DCPU to respond.

Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---

diff --git a/drivers/memory/brcmstb_dpfe.c b/drivers/memory/brcmstb_dpfe.c
index 04599eccd6042..8e1ccdb0e59d8 100644
--- a/drivers/memory/brcmstb_dpfe.c
+++ b/drivers/memory/brcmstb_dpfe.c
@@ -111,7 +111,7 @@
 #define DPFE_MSG_TYPE_COMMAND	1
 #define DPFE_MSG_TYPE_RESPONSE	2
 
-#define DELAY_LOOP_MAX		200000
+#define DELAY_LOOP_MAX		1000
 
 enum dpfe_msg_fields {
 	MSG_HEADER,
@@ -323,7 +323,7 @@ static int __send_command(struct private_data *priv, unsigned int cmd,
 		resp = readl_relaxed(regs + REG_TO_HOST_MBOX);
 		if (resp > 0)
 			break;
-		udelay(5);
+		msleep(1);
 	}
 
 	if (i == DELAY_LOOP_MAX) {