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From: Kishon Vijay Abraham I <kishon@ti.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
	Rob Herring <robh+dt@kernel.org>,
	Tony Lindgren <tony@atomide.com>,
	Adrian Hunter <adrian.hunter@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
	devicetree@vger.kernel.org, kishon@ti.com, nsekhar@ti.com,
	linux-mmc@vger.kernel.org, Russell King <linux@armlinux.org.uk>,
	linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH 01/12] mmc: sdhci-omap: Update 'power_mode' outside sdhci_omap_init_74_clocks
Date: Thu, 14 Dec 2017 18:39:30 +0530	[thread overview]
Message-ID: <20171214130941.26666-2-kishon@ti.com> (raw)
In-Reply-To: <20171214130941.26666-1-kishon@ti.com>

Updating 'power_mode' in sdhci_omap_init_74_clocks results in
'power_mode' never updated to MMC_POWER_OFF during card
removal. This results in initialization sequence not sent to the
card during re-insertion.
Fix it here by adding sdhci_omap_set_power_mode to update power_mode.
This function can also be used later to perform operations that
are specific to a power mode (e.g, disable tuning during power off).

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
---
 drivers/mmc/host/sdhci-omap.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
index 628bfe9a3d17..96985786cadf 100644
--- a/drivers/mmc/host/sdhci-omap.c
+++ b/drivers/mmc/host/sdhci-omap.c
@@ -244,6 +244,12 @@ static int sdhci_omap_start_signal_voltage_switch(struct mmc_host *mmc,
 	return 0;
 }
 
+static void sdhci_omap_set_power_mode(struct sdhci_omap_host *omap_host,
+				      u8 power_mode)
+{
+	omap_host->power_mode = power_mode;
+}
+
 static void sdhci_omap_set_bus_mode(struct sdhci_omap_host *omap_host,
 				    unsigned int mode)
 {
@@ -273,6 +279,7 @@ static void sdhci_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	sdhci_omap_set_bus_mode(omap_host, ios->bus_mode);
 	sdhci_set_ios(mmc, ios);
+	sdhci_omap_set_power_mode(omap_host, ios->power_mode);
 }
 
 static u16 sdhci_omap_calc_divisor(struct sdhci_pltfm_host *host,
@@ -401,8 +408,6 @@ static void sdhci_omap_init_74_clocks(struct sdhci_host *host, u8 power_mode)
 	sdhci_omap_writel(omap_host, SDHCI_OMAP_STAT, INT_CC_EN);
 
 	enable_irq(host->irq);
-
-	omap_host->power_mode = power_mode;
 }
 
 static struct sdhci_ops sdhci_omap_ops = {
@@ -504,6 +509,7 @@ static int sdhci_omap_probe(struct platform_device *pdev)
 	omap_host->host = host;
 	omap_host->base = host->ioaddr;
 	omap_host->dev = dev;
+	omap_host->power_mode = MMC_POWER_UNDEFINED;
 	host->ioaddr += offset;
 
 	mmc = host->mmc;
-- 
2.11.0

  reply	other threads:[~2017-12-14 13:09 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-14 13:09 [PATCH 00/12] mmc: sdhci-omap: Add UHS/HS200 mode support Kishon Vijay Abraham I
2017-12-14 13:09 ` Kishon Vijay Abraham I [this message]
2017-12-21  8:57   ` [PATCH 01/12] mmc: sdhci-omap: Update 'power_mode' outside sdhci_omap_init_74_clocks Adrian Hunter
2017-12-14 13:09 ` [PATCH 02/12] mmc: sdhci-omap: Add card_busy host ops Kishon Vijay Abraham I
2017-12-21  8:59   ` Adrian Hunter
2017-12-14 13:09 ` [PATCH 03/12] mmc: sdhci-omap: Add custom set_uhs_signaling sdhci_host ops Kishon Vijay Abraham I
2017-12-21  9:01   ` Adrian Hunter
2017-12-14 13:09 ` [PATCH 04/12] mmc: sdhci-omap: Add tuning support Kishon Vijay Abraham I
2017-12-21  9:09   ` Adrian Hunter
     [not found] ` <20171214130941.26666-1-kishon-l0cyMroinI0@public.gmane.org>
2017-12-14 13:09   ` [PATCH 05/12] mmc: sdhci-omap: Workaround for Errata i802 Kishon Vijay Abraham I
2017-12-21  9:09     ` Adrian Hunter
2017-12-14 13:09 ` [PATCH 06/12] mmc: sdhci_omap: Add support to set IODELAY values Kishon Vijay Abraham I
     [not found]   ` <20171214130941.26666-7-kishon-l0cyMroinI0@public.gmane.org>
2017-12-14 15:04     ` Tony Lindgren
2017-12-14 13:09 ` [PATCH 07/12] mmc: sdhci_omap: Fix sdhci-omap quirks Kishon Vijay Abraham I
     [not found]   ` <20171214130941.26666-8-kishon-l0cyMroinI0@public.gmane.org>
2017-12-21  9:12     ` Adrian Hunter
2017-12-14 13:09 ` [PATCH 08/12] mmc: sdhci-omap: Add support to override f_max and iodelay from pdata Kishon Vijay Abraham I
2017-12-14 14:04   ` Philippe Ombredanne
     [not found]   ` <20171214130941.26666-9-kishon-l0cyMroinI0@public.gmane.org>
2017-12-21  9:13     ` Adrian Hunter
2017-12-14 13:09 ` [RFC PATCH 09/12] mmc: sdhci: Use software timer when timeout greater than hardware capablility Kishon Vijay Abraham I
2017-12-20 14:11   ` Adrian Hunter
2018-01-04 12:59     ` Kishon Vijay Abraham I
2018-01-11  8:46       ` Adrian Hunter
2018-02-02 13:25         ` Kishon Vijay Abraham I
2017-12-14 13:09 ` [PATCH 10/12] dt-bindings: sdhci-omap: Add K2G specific binding Kishon Vijay Abraham I
     [not found]   ` <20171214130941.26666-11-kishon-l0cyMroinI0@public.gmane.org>
2017-12-16 16:49     ` Rob Herring
2017-12-14 13:09 ` [PATCH 11/12] mmc: sdhci-omap: Add support for MMC/SD controller in k2g SoC Kishon Vijay Abraham I
2017-12-21  9:15   ` Adrian Hunter
2017-12-14 13:09 ` [PATCH 12/12] ARM: OMAP2+: Use sdhci-omap specific pdata-quirks for MMC/SD on DRA74x EVM Kishon Vijay Abraham I

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