From: Sean Paul <seanpaul@chromium.org>
Date: Mon, 14 Jan 2013 22:03:20 +0000 (-0500)
Subject: drm/exynos: Replace mdelay with usleep_range
X-Git-Tag: firefly_0821_release~3680^2~1188^2~1^2~6
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=09760ea34965a48d39e58607945e5e69edba01e6;p=firefly-linux-kernel-4.4.55.git

drm/exynos: Replace mdelay with usleep_range

Replace the unnecessary atomic mdelay calls with usleep_range calls.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
---

diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 24dbb7f7c290..b490afa781dc 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -1647,9 +1647,9 @@ static void hdmi_conf_reset(struct hdmi_context *hdata)
 
 	/* resetting HDMI core */
 	hdmi_reg_writemask(hdata, reg,  0, HDMI_CORE_SW_RSTOUT);
-	mdelay(10);
+	usleep_range(10000, 12000);
 	hdmi_reg_writemask(hdata, reg, ~0, HDMI_CORE_SW_RSTOUT);
-	mdelay(10);
+	usleep_range(10000, 12000);
 }
 
 static void hdmi_conf_init(struct hdmi_context *hdata)
@@ -1774,7 +1774,7 @@ static void hdmi_v13_timing_apply(struct hdmi_context *hdata)
 		u32 val = hdmi_reg_read(hdata, HDMI_V13_PHY_STATUS);
 		if (val & HDMI_PHY_STATUS_READY)
 			break;
-		mdelay(1);
+		usleep_range(1000, 2000);
 	}
 	/* steady state not achieved */
 	if (tries == 0) {
@@ -1941,7 +1941,7 @@ static void hdmi_v14_timing_apply(struct hdmi_context *hdata)
 		u32 val = hdmi_reg_read(hdata, HDMI_PHY_STATUS_0);
 		if (val & HDMI_PHY_STATUS_READY)
 			break;
-		mdelay(1);
+		usleep_range(1000, 2000);
 	}
 	/* steady state not achieved */
 	if (tries == 0) {
@@ -1993,9 +1993,9 @@ static void hdmiphy_conf_reset(struct hdmi_context *hdata)
 
 	/* reset hdmiphy */
 	hdmi_reg_writemask(hdata, reg, ~0, HDMI_PHY_SW_RSTOUT);
-	mdelay(10);
+	usleep_range(10000, 12000);
 	hdmi_reg_writemask(hdata, reg,  0, HDMI_PHY_SW_RSTOUT);
-	mdelay(10);
+	usleep_range(10000, 12000);
 }
 
 static void hdmiphy_poweron(struct hdmi_context *hdata)
@@ -2043,7 +2043,7 @@ static void hdmiphy_conf_apply(struct hdmi_context *hdata)
 		return;
 	}
 
-	mdelay(10);
+	usleep_range(10000, 12000);
 
 	/* operation mode */
 	operation[0] = 0x1f;
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index c187ea33b748..1ff2d7a045b5 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -600,7 +600,7 @@ static void vp_win_reset(struct mixer_context *ctx)
 		/* waiting until VP_SRESET_PROCESSING is 0 */
 		if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING)
 			break;
-		mdelay(10);
+		usleep_range(10000, 12000);
 	}
 	WARN(tries == 0, "failed to reset Video Processor\n");
 }