mmc: omap_hsmmc: claim pinctrl at probe time

This allows DT-driven board to set up the pin mux only when the driver
is in use.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index fedd258cc4ea..813ae0ac6286 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -37,6 +37,7 @@
 #include <linux/io.h>
 #include <linux/gpio.h>
 #include <linux/regulator/consumer.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/pm_runtime.h>
 #include <mach/hardware.h>
 #include <plat/mmc.h>
@@ -1725,6 +1726,7 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev)
         const struct of_device_id *match;
         dma_cap_mask_t mask;
         unsigned tx_req, rx_req;
+        struct pinctrl *pinctrl;
 
         match = of_match_device(of_match_ptr(omap_mmc_of_match), &pdev->dev);
         if (match) {
@@ -1928,6 +1930,11 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev)
 
         omap_hsmmc_disable_irq(host);
 
+        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+        if (IS_ERR(pinctrl))
+                dev_warn(&pdev->dev,
+                        "pins are not configured from the driver\n");
+
         omap_hsmmc_protect_card(host);
 
         mmc_add_host(mmc);