From: Dong Aisheng <b29396@freescale.com>
To: linux-mmc@vger.kernel.org
Cc: cjb@laptop.org, anton@enomsg.org, shawn.guo@linaro.org,
linux-arm-kernel@lists.infradead.org, s.hauer@pengutronix.de,
b29396@freescale.com
Subject: [PATCH 7/8] mmc: sdhci-esdhc: set actual_clock in clock setting
Date: Wed, 4 Sep 2013 20:54:16 +0800 [thread overview]
Message-ID: <1378299257-2980-8-git-send-email-b29396@freescale.com> (raw)
In-Reply-To: <1378299257-2980-1-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.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index c8a773b..eb22e5f 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -89,8 +89,9 @@ static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock,
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:[~2013-09-04 13:01 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-04 12:54 [PATCH 0/8] mmc: sdhci-esdhc-imx: add SD3.0 support Dong Aisheng
2013-09-04 12:54 ` [PATCH 1/8] mmc: sdhci: add hooks for platform specific tuning Dong Aisheng
2013-09-05 3:14 ` Shawn Guo
2013-09-05 14:53 ` Dong Aisheng
2013-09-04 12:54 ` [PATCH 2/8] mmc: sdhci: allow platform access of sdhci_send_command Dong Aisheng
2013-09-04 12:54 ` [PATCH 3/8] sdhci: sdhci-esdhc-imx: support real clock on and off for imx6q Dong Aisheng
2013-09-05 4:32 ` Shawn Guo
2013-09-05 14:59 ` Dong Aisheng
2013-09-04 12:54 ` [PATCH 4/8] sdhci: sdhci-esdhci-imx: add sd3.0 clock tuning support Dong Aisheng
2013-09-05 6:00 ` Shawn Guo
2013-09-05 15:02 ` Dong Aisheng
2013-09-05 7:33 ` Ulf Hansson
2013-09-05 17:52 ` Dong Aisheng
2013-09-16 7:48 ` Ulf Hansson
2013-09-04 12:54 ` [PATCH 5/8] sdhci: sdhci-esdhc-imx: change pinctrl state according to uhs mode Dong Aisheng
2013-09-05 6:34 ` Shawn Guo
2013-09-05 15:06 ` Dong Aisheng
2013-09-05 7:38 ` Ulf Hansson
2013-09-05 16:04 ` Dong Aisheng
2013-09-13 14:01 ` Ulf Hansson
2013-09-13 16:38 ` Dong Aisheng
2013-09-05 18:40 ` Matt Sealey
2013-09-11 9:26 ` Dong Aisheng
2013-09-27 0:28 ` Matt Sealey
2013-09-04 12:54 ` [PATCH 6/8] mmc: sdhci-esdhc: correct pre_div for imx6q Dong Aisheng
2013-09-04 12:54 ` Dong Aisheng [this message]
2013-09-04 12:54 ` [PATCH 8/8] ARM: dts: imx6qdl: add uhs pinctrl state for usdhc3 Dong Aisheng
2013-09-05 6:43 ` Shawn Guo
2013-09-05 15:09 ` Dong Aisheng
2013-09-05 8:03 ` Sascha Hauer
2013-09-05 15:29 ` Dong Aisheng
2013-09-05 7:42 ` [PATCH 0/8] mmc: sdhci-esdhc-imx: add SD3.0 support Ulf Hansson
2013-09-05 18:01 ` Dong Aisheng
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