From 9f1b4456c9076279a92005acb821e7bd3fc01880 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Fri, 19 Jun 2015 23:39:41 +0200 Subject: mmc: bcm2835_sdhci: Restore original delay behavior MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Patch 33fe2fb8df01647f97a7bce96a1c7781a7f6d253 titled "mmc: bcm283x: Remove get_timer_us() from mmc driver" incorrectly replaced ad-hoc get_timer_us() function with a plain get_timer(). The get_timer() operates in mSec units instead of uSec though, which caused very slow operation of the driver. Restore the original behavior of the driver, but avoid get_timer_us() and use timer_get_us() instead. The later is part of the standard API. Signed-off-by: Marek Vasut Cc: Jakub Kiciński Cc: Stephen Warren Tested-by: Jakub Kicinski diff --git a/drivers/mmc/bcm2835_sdhci.c b/drivers/mmc/bcm2835_sdhci.c index 078ef05..227d2df 100644 --- a/drivers/mmc/bcm2835_sdhci.c +++ b/drivers/mmc/bcm2835_sdhci.c @@ -69,11 +69,11 @@ static inline void bcm2835_sdhci_raw_writel(struct sdhci_host *host, u32 val, * (Which is just as well - otherwise we'd have to nobble the DMA engine * too) */ - while (get_timer(bcm_host->last_write) < bcm_host->twoticks_delay) + while (timer_get_us() - bcm_host->last_write < bcm_host->twoticks_delay) ; writel(val, host->ioaddr + reg); - bcm_host->last_write = get_timer(0); + bcm_host->last_write = timer_get_us(); } static inline u32 bcm2835_sdhci_raw_readl(struct sdhci_host *host, int reg) -- cgit v0.10.2