linux/drivers/mtd/devices
Luca Ellero c3c9a2c4b9 mtd: dataflash: replace msleep with usleep_range
Since msleep is based on jiffies, this 3 ms sleep becomes actually 20 ms.
Worst of all, since this sleep is used in a loop when writing, a single page
write (256 to 1024 bytes) causes 17 ms extra time.
When writing large files (for example u-boot is usually 512 KB) this delay
adds up to minutes.
See Documentation/timers/timers-howto.txt "Why not msleep for (1ms - 20ms)".

Signed-off-by: Luca Ellero <luca.ellero@brickedbrain.com>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
2018-04-22 20:02:17 +02:00
..
bcm47xxsflash.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
bcm47xxsflash.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block2mtd.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
docg3.c mtd: devices: simplify getting .drvdata 2018-04-22 19:10:53 +02:00
docg3.h mtd: create per-device and module-scope debugfs entries 2017-07-21 13:25:29 -07:00
Kconfig mtd: mchp23k256: Add driver for this SPI SRAM device 2017-05-11 10:13:02 -07:00
lart.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
m25p80.c mtd: m25p80: restore the status of SPI flash when exiting 2017-12-13 00:36:00 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mchp23k256.c mtd: mchp23k256: propagate return value of spi_sync() 2017-12-17 09:10:14 +01:00
ms02-nv.c mtd: ms02-nv: remove superfluous name cast 2014-01-03 11:22:09 -08:00
ms02-nv.h MTD/JFFS2: remove CVS keywords 2008-06-04 17:50:17 +01:00
mtd_dataflash.c mtd: dataflash: replace msleep with usleep_range 2018-04-22 20:02:17 +02:00
mtdram.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
phram.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
pmc551.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
powernv_flash.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
serial_flash_cmds.h mtd: st_spi_fsm: remove SPINOR_OP_RDSR2 and use SPINOR_OP_RDCR instead 2017-06-27 21:50:17 +02:00
slram.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
spear_smi.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
sst25l.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
st_spi_fsm.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00