Mikulas Patocka
a328c4cec0
udlfb: set optimal write delay ...
commit bb24153a3f13dd0dbc1f8055ad97fe346d598f66 upstream.
The default delay 5 jiffies is too much when the kernel is compiled with
HZ=100 - it results in jumpy cursor in Xwindow.
In order to find out the optimal delay, I benchmarked the driver on
1280x720x30fps video. I found out that with HZ=1000, 10ms is acceptable,
but with HZ=250 or HZ=300, we need 4ms, so that the video is played
without any frame skips.
This patch changes the delay to this value.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-09 20:01:25 +02:00
video: atmel_lcdfb: pass the pdata as params
2013-09-27 09:26:20 +03:00
drm/exynos: Add DECON driver
2015-02-11 20:27:08 +09:00
drm/exynos: clean up register definions for fimd and decon
2016-04-30 11:34:14 +09:00
gpu: ipu-v3: Add queued image conversion support
2016-09-19 08:30:27 +02:00
gpu: ipu-v3: Add ipu_rot_mode_is_irt()
2016-09-19 08:30:14 +02:00
drivers/video/fbdev/kyrofb: Use arch_phys_wc_add() and pci_ioremap_wc_bar()
2015-08-25 09:59:44 +02:00
drm: Add new DCS commands in the enum list
2016-03-31 08:00:06 +02:00
video: mmp: add pitch info in mmp_win structure
2013-09-20 12:52:33 +03:00
video: fbdev: neofb: use arch_phys_wc_add() and ioremap_wc()
2015-06-03 12:41:49 +03:00
videomode: provide dummy inline functions for !CONFIG_OF
2014-10-07 09:31:45 +03:00
omapdss: omap-panel-data.h: Remove connector_type from atv pdata
2016-06-03 16:06:32 +03:00
Merge omapdss header refactoring
2016-06-07 12:42:58 +03:00
video: pxa168fb: Cleanup pxa168fb.h file
2014-01-17 10:57:43 +02:00
drm/exynos: add macro to get the address of START_S reg
2015-08-31 00:27:37 +09:00
video: fbdev: tdfxfb: use arch_phys_wc_add() and ioremap_wc()
2015-06-03 12:41:52 +03:00
udlfb: set optimal write delay
2018-09-09 20:01:25 +02:00
arch, drivers: don't include <asm/io.h> directly, use <linux/io.h> instead
2015-08-10 23:07:05 -04:00
a328c4cec0