[PATCH v4 01/12] mmc: sdhci-omap: Fix when capabilities are obtained from SDHCI_CAPABILITIES reg

From: Kishon Vijay Abraham I
Date: Wed Apr 25 2018 - 08:10:15 EST


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@xxxxxx>
Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
---
drivers/mmc/host/sdhci-omap.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
index 1456abd5eeb9..9bb53702e0e5 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;
@@ -930,12 +926,23 @@ 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_cleanup_host;
+
+ ret = __sdhci_add_host(host);
+ if (ret)
+ goto err_cleanup_host;
+
return 0;

+err_cleanup_host:
+ sdhci_cleanup_host(host);
+
err_put_sync:
pm_runtime_put_sync(dev);

--
2.17.0