From: Arnd Bergmann <arnd@arndb.de>
To: linux-kernel@vger.kernel.org
Cc: patches@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
Arnd Bergmann <arnd@arndb.de>, David Airlie <airlied@linux.ie>,
Ben Skeggs <bskeggs@redhat.com>,
dri-devel@lists.freedesktop.org
Subject: [PATCH 03/15] drm/nouveau: use mdelay instead of large udelay constants
Date: Sat, 1 Jun 2013 00:22:40 +0200 [thread overview]
Message-ID: <1370038972-2318779-4-git-send-email-arnd@arndb.de> (raw)
In-Reply-To: <1370038972-2318779-1-git-send-email-arnd@arndb.de>
ARM cannot handle udelay for more than 2 miliseconds, so we
should use mdelay instead for those.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: dri-devel@lists.freedesktop.org
---
drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
index d0817d9..ed7415e 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
@@ -51,7 +51,8 @@ nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval)
const u32 doff = (or * 0x800);
int load = -EINVAL;
nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
- udelay(9500);
+ mdelay(9);
+ udelay(500);
nv_wr32(priv, 0x61a00c + doff, 0x80000000);
load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27;
nv_wr32(priv, 0x61a00c + doff, 0x00000000);
--
1.8.1.2
next prev parent reply other threads:[~2013-05-31 22:23 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-31 22:22 [PATCH 00/15] Linux-3.10 ARM randconfig fixes Arnd Bergmann
2013-05-31 22:22 ` [PATCH 01/15] irqdomain: export irq_domain_add_simple Arnd Bergmann
2013-05-31 22:22 ` [PATCH 02/15] mtd: omap2: allow bulding as a module Arnd Bergmann
2013-05-31 22:22 ` Arnd Bergmann [this message]
2013-05-31 23:34 ` [PATCH 03/15] drm/nouveau: use mdelay instead of large udelay constants Aaro Koskinen
2013-05-31 22:22 ` [PATCH 04/15] [SCSI] nsp32: " Arnd Bergmann
2013-05-31 22:22 ` [PATCH 05/15] hwrng: bcm2835: fix MODULE_LICENSE tag Arnd Bergmann
2013-06-21 7:16 ` Herbert Xu
2013-05-31 22:22 ` [PATCH 06/15] cpuidle: calxeda: select ARM_CPU_SUSPEND Arnd Bergmann
2013-05-31 22:22 ` [PATCH 07/15] cpufreq: spear needs cpufreq table Arnd Bergmann
2013-06-01 1:58 ` Viresh Kumar
2013-06-01 9:03 ` Arnd Bergmann
2013-06-01 9:45 ` Viresh Kumar
2013-05-31 22:22 ` [PATCH 08/15] thermal: cpu_cooling: fix stub function Arnd Bergmann
2013-06-19 17:25 ` Eduardo Valentin
2013-06-19 18:18 ` Arnd Bergmann
2013-05-31 22:22 ` [PATCH 09/15] drm: always provide debugfs function prototypes Arnd Bergmann
2013-05-31 22:22 ` [PATCH 10/15] drm/tilcd: select BACKLIGHT_LCD_SUPPORT Arnd Bergmann
2013-05-31 22:22 ` [PATCH 11/15] iwlegacy: il_pm_ops is only provided for PM_SLEEP Arnd Bergmann
2013-06-01 5:43 ` Brian Norris
2013-06-01 9:03 ` Arnd Bergmann
2013-06-01 9:12 ` [PATCH v2] " Arnd Bergmann
2013-05-31 22:22 ` [PATCH 12/15] [media] davinci: vpfe_capture needs i2c Arnd Bergmann
2013-05-31 22:22 ` [PATCH 13/15] [media] omap3isp: include linux/mm_types.h Arnd Bergmann
2013-06-01 15:30 ` Laurent Pinchart
2013-06-01 20:04 ` Arnd Bergmann
2013-05-31 22:22 ` [PATCH 14/15] clk: tegra: provide tegra_periph_reset_assert alternative Arnd Bergmann
2013-05-31 22:22 ` [PATCH 15/15] OF: remove #ifdef from linux/of_platform.h Arnd Bergmann
2013-06-01 14:01 ` Rob Herring
2013-06-01 20:03 ` Arnd Bergmann
2013-06-01 20:30 ` Rob Herring
2013-06-01 20:57 ` Arnd Bergmann
2013-06-04 13:01 ` Rob Herring
2013-06-04 17:51 ` Arnd Bergmann
2013-06-04 22:24 ` Rob Herring
2013-06-05 12:13 ` Arnd Bergmann
2013-06-05 21:48 ` Grant Likely
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