linux-kernel - [PATCH v3 01/11] mmc: sdhci-omap: Fix when capabilities are obtained from SDHCI

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Message-ID: <20180307132020.30951-2-kishon@ti.com>
Date:   Wed, 7 Mar 2018 18:50:10 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Tony Lindgren <tony@...mide.com>,
        Adrian Hunter <adrian.hunter@...el.com>
CC:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>, <kishon@...com>,
        <linux-mmc@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v3 01/11] mmc: sdhci-omap: Fix when capabilities are obtained from SDHCI_CAPABILITIES reg

sdhci_omap_config_iodelay_pinctrl_state() requires caps and caps2 to be
initialized (speed mode capabilities like UHS/HS200) before it is
invoked. While mmc_of_parse() initializes caps/caps2 if capabilities is
populated in device tree, it will remain uninitialized for capabilities
obtained from SDHCI_CAPABILITIES register.
Fix sdhci_omap_config_iodelay_pinctrl_state() to be used even while
getting the capabilities from SDHCI_CAPABILITIES register by invoking
sdhci_setup_host() before sdhci_omap_config_iodelay_pinctrl_state().

Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
 drivers/mmc/host/sdhci-omap.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
index 1456abd5eeb9..3cce30584d2f 100644
--- a/drivers/mmc/host/sdhci-omap.c
+++ b/drivers/mmc/host/sdhci-omap.c
@@ -916,10 +916,6 @@ static int sdhci_omap_probe(struct platform_device *pdev)
 		goto err_put_sync;
 	}
 
-	ret = sdhci_omap_config_iodelay_pinctrl_state(omap_host);
-	if (ret)
-		goto err_put_sync;
-
 	host->mmc_host_ops.get_ro = mmc_gpio_get_ro;
 	host->mmc_host_ops.start_signal_voltage_switch =
 					sdhci_omap_start_signal_voltage_switch;
@@ -930,7 +926,15 @@ static int sdhci_omap_probe(struct platform_device *pdev)
 	sdhci_read_caps(host);
 	host->caps |= SDHCI_CAN_DO_ADMA2;
 
-	ret = sdhci_add_host(host);
+	ret = sdhci_setup_host(host);
+	if (ret)
+		goto err_put_sync;
+
+	ret = sdhci_omap_config_iodelay_pinctrl_state(omap_host);
+	if (ret)
+		goto err_put_sync;
+
+	ret = __sdhci_add_host(host);
 	if (ret)
 		goto err_put_sync;
 
-- 
2.11.0