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mmc: sdhci-of-at91: replace while loop with read_poll_timeout

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Replace while loop with read_poll_timeout().

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210924082851.2132068-3-claudiu.beznea@microchip.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Claudiu Beznea 2021-09-24 11:28:51 +03:00 committed by Ulf Hansson
parent af467fad78
commit 30d4b990ec
1 changed files with 5 additions and 11 deletions
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16
drivers/mmc/host/sdhci-of-at91.c
View file

@ -62,7 +62,6 @@ static void sdhci_at91_set_force_card_detect(struct sdhci_host *host)
static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
{
u16 clk;
unsigned long timeout;
host->mmc->actual_clock = 0;
@ -87,16 +86,11 @@ static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
/* Wait max 20 ms */
timeout = 20;
while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL))
& SDHCI_CLOCK_INT_STABLE)) {
if (timeout == 0) {
pr_err("%s: Internal clock never stabilised.\n",
mmc_hostname(host->mmc));
return;
}
timeout--;
mdelay(1);
if (read_poll_timeout(sdhci_readw, clk, (clk & SDHCI_CLOCK_INT_STABLE),
1000, 20000, false, host, SDHCI_CLOCK_CONTROL)) {
pr_err("%s: Internal clock never stabilised.\n",
mmc_hostname(host->mmc));
return;
}
clk |= SDHCI_CLOCK_CARD_EN;