From: Adrian Hunter <adrian.hunter@intel.com> To: Claudiu Beznea <claudiu.beznea@microchip.com>, eugen.hristev@microchip.com, ulf.hansson@linaro.org, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, ludovic.desroches@microchip.com Cc: linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/2] mmc: sdhci-of-at91: replace while loop with read_poll_timeout Date: Fri, 24 Sep 2021 14:34:42 +0300 [thread overview] Message-ID: <10b77993-8ab9-75dc-69e8-2775f8fcc7b1@intel.com> (raw) In-Reply-To: <20210924082851.2132068-3-claudiu.beznea@microchip.com> On 24/09/21 11:28 am, Claudiu Beznea wrote: > Replace while loop with read_poll_timeout(). > > Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> > --- > drivers/mmc/host/sdhci-of-at91.c | 16 +++++----------- > 1 file changed, 5 insertions(+), 11 deletions(-) > > diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c > index 134ba01d3063..d1a1c548c515 100644 > --- a/drivers/mmc/host/sdhci-of-at91.c > +++ b/drivers/mmc/host/sdhci-of-at91.c > @@ -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; >
WARNING: multiple messages have this Message-ID (diff)
From: Adrian Hunter <adrian.hunter@intel.com> To: Claudiu Beznea <claudiu.beznea@microchip.com>, eugen.hristev@microchip.com, ulf.hansson@linaro.org, nicolas.ferre@microchip.com, alexandre.belloni@bootlin.com, ludovic.desroches@microchip.com Cc: linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 2/2] mmc: sdhci-of-at91: replace while loop with read_poll_timeout Date: Fri, 24 Sep 2021 14:34:42 +0300 [thread overview] Message-ID: <10b77993-8ab9-75dc-69e8-2775f8fcc7b1@intel.com> (raw) In-Reply-To: <20210924082851.2132068-3-claudiu.beznea@microchip.com> On 24/09/21 11:28 am, Claudiu Beznea wrote: > Replace while loop with read_poll_timeout(). > > Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> > --- > drivers/mmc/host/sdhci-of-at91.c | 16 +++++----------- > 1 file changed, 5 insertions(+), 11 deletions(-) > > diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c > index 134ba01d3063..d1a1c548c515 100644 > --- a/drivers/mmc/host/sdhci-of-at91.c > +++ b/drivers/mmc/host/sdhci-of-at91.c > @@ -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; > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-09-24 11:34 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-24 8:28 [PATCH v2 0/2] mmc: sdhci-of-at91: fix for shdci-of-at91 Claudiu Beznea 2021-09-24 8:28 ` Claudiu Beznea 2021-09-24 8:28 ` [PATCH v2 1/2] mmc: sdhci-of-at91: wait for calibration done before proceed Claudiu Beznea 2021-09-24 8:28 ` Claudiu Beznea 2021-09-24 11:34 ` Adrian Hunter 2021-09-24 11:34 ` Adrian Hunter 2021-09-24 8:28 ` [PATCH v2 2/2] mmc: sdhci-of-at91: replace while loop with read_poll_timeout Claudiu Beznea 2021-09-24 8:28 ` Claudiu Beznea 2021-09-24 11:34 ` Adrian Hunter [this message] 2021-09-24 11:34 ` Adrian Hunter 2021-09-27 22:31 ` [PATCH v2 0/2] mmc: sdhci-of-at91: fix for shdci-of-at91 Ulf Hansson 2021-09-27 22:31 ` Ulf Hansson
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