source: trunk/target/linux/ar71xx/patches-3.2/206-spi-ath79-add-shutdown-handler.patch @ 31117

Last change on this file since 31117 was 31117, checked in by juhosg, 5 years ago

ar71xx: improve SPI flash read/write performance

mtd_speedtest results:

page write speed

old new delta

DB120 209 KiB/s 226 KiB/s +8.13%
TL-WR1043ND v1 122 KiB/s 148 KiB/s +21.31%
TL-WR703N v1 153 KiB/s 194 KiB/s +26.80%
TL-MR3220 v1 130 KiB/s 156 KiB/s +20.00%
TL-WR2543ND v1 158 KiB/s 202 KiB/s +27.85%
TL-WR741ND v2 122 KiB/s 152 KiB/s +24.59%
ALFA AP96 229 KiB/s 260 KiB/s +13.54%
WNDR3700 202 KiB/s 223 KiB/s +10.40%

page read speed

old new delta

DB120 691 KiB/s 929 KiB/s +34.44%
TL-WR1043ND v1 372 KiB/s 754 KiB/s +102.69%
TL-WR703N v1 375 KiB/s 745 KiB/s +98.67%
TL-MR3220 v1 372 KiB/s 752 KiB/s +102.15%
TL-WR2543ND v1 307 KiB/s 564 KiB/s +83.71%
TL-WR741ND v2 315 KiB/s 525 KiB/s +66.67%
ALFA AP96 515 KiB/s 702 KiB/s +36.31%
WNDR3700 515 KiB/s 697 KiB/s +35.34%

File size: 1.2 KB
  • drivers/spi/spi-ath79.c

    From e01dcc2835017b55e936bd150ddab29bfcf2c63c Mon Sep 17 00:00:00 2001
    From: Gabor Juhos <juhosg@openwrt.org>
    Date: Wed, 11 Jan 2012 22:19:32 +0100
    Subject: [PATCH 6/7] spi/ath79: add shutdown handler
    
    Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
    ---
     drivers/spi/spi-ath79.c |   12 +++++++++++-
     1 files changed, 11 insertions(+), 1 deletions(-)
    
    a b err_put_master: 
    296296        return ret; 
    297297} 
    298298 
    299 static __devexit int ath79_spi_remove(struct platform_device *pdev) 
     299static void __ath79_spi_remove(struct platform_device *pdev) 
    300300{ 
    301301        struct ath79_spi *sp = platform_get_drvdata(pdev); 
    302302 
    static __devexit int ath79_spi_remove(st 
    307307        iounmap(sp->base); 
    308308        platform_set_drvdata(pdev, NULL); 
    309309        spi_master_put(sp->bitbang.master); 
     310} 
    310311 
     312static __devexit int ath79_spi_remove(struct platform_device *pdev) 
     313{ 
     314        __ath79_spi_remove(pdev); 
    311315        return 0; 
    312316} 
    313317 
     318static void ath79_spi_shutdown(struct platform_device *pdev) 
     319{ 
     320        __ath79_spi_remove(pdev); 
     321} 
     322 
    314323static struct platform_driver ath79_spi_driver = { 
    315324        .probe          = ath79_spi_probe, 
    316325        .remove         = __devexit_p(ath79_spi_remove), 
     326        .shutdown       = ath79_spi_shutdown, 
    317327        .driver         = { 
    318328                .name   = DRV_NAME, 
    319329                .owner  = THIS_MODULE, 
Note: See TracBrowser for help on using the repository browser.