From: Dong Aisheng <b29396@freescale.com>
To: linux-mmc@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org, cjb@laptop.org,
shawn.guo@linaro.org, anton@enomsg.org, s.hauer@pengutronix.de,
w.sang@pengutronix.de, ulf.hansson@linaro.org,
neko@bakuhatsu.net, b29396@freescale.com
Subject: [PATCH v2 8/9] mmc: sdhci-esdhc-imx: set actual_clock in clock setting
Date: Fri, 13 Sep 2013 19:11:37 +0800 [thread overview]
Message-ID: <1379070698-7344-9-git-send-email-b29396@freescale.com> (raw)
In-Reply-To: <1379070698-7344-1-git-send-email-b29396@freescale.com>
This enables access the actual_clock via sys.
root@imx6qsabreauto:~# cat /sys/kernel/debug/mmc0/ios
clock: 198000000 Hz
actual clock: 198000000 Hz
vdd: 17 (2.9 ~ 3.0 V)
bus mode: 2 (push-pull)
chip select: 0 (don't care)
power mode: 2 (on)
bus width: 2 (4 bits)
timing spec: 6 (sd uhs SDR104)
signal voltage: 0 (1.80 V)
Signed-off-by: Dong Aisheng <b29396@freescale.com>
---
drivers/mmc/host/sdhci-esdhc-imx.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index fe48ec3..b9899e9 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -524,8 +524,9 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
while (host_clock / pre_div / div > clock && div < 16)
div++;
+ host->mmc->actual_clock = host_clock / pre_div / div;
dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
- clock, host_clock / pre_div / div);
+ clock, host->mmc->actual_clock);
pre_div >>= 1;
div--;
--
1.7.1
next prev parent reply other threads:[~2013-09-13 11:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-13 11:11 [PATCH v2 0/9] mmc: sdhci-esdhc-imx: add SD3.0 support Dong Aisheng
2013-09-13 11:11 ` [PATCH v2 1/9] mmc: sdhci: add hooks for platform specific tuning Dong Aisheng
2013-09-13 11:11 ` [PATCH v2 2/9] mmc: sdhci: allow platform access of sdhci_send_command Dong Aisheng
2013-09-13 11:11 ` [PATCH v2 3/9] mmc: sdhci-esdhci: move common esdhc_set_clock to platform driver Dong Aisheng
2013-09-13 11:11 ` [PATCH v2 4/9] sdhci: sdhci-esdhc-imx: support real clock on and off for imx6q Dong Aisheng
2013-09-13 11:11 ` [PATCH v2 5/9] sdhci: sdhci-esdhci-imx: add sd3.0 clock tuning support Dong Aisheng
2013-09-13 11:11 ` [PATCH v2 6/9] sdhci: sdhci-esdhc-imx: change pinctrl state according to uhs mode Dong Aisheng
2013-09-13 11:11 ` [PATCH v2 7/9] mmc: sdhci-esdhc-imx: correct pre_div for imx6q Dong Aisheng
2013-09-13 11:11 ` Dong Aisheng [this message]
2013-09-13 11:11 ` [PATCH v2 9/9] ARM: dts: imx6qdl: add uhs pinctrl state for usdhc3 Dong Aisheng
2013-09-16 8:44 ` Shawn Guo
2013-09-26 2:01 ` [PATCH v2 0/9] mmc: sdhci-esdhc-imx: add SD3.0 support Chris Ball
2013-09-26 9:02 ` Shawn Guo
2013-09-26 11:57 ` Chris Ball
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