thermal: ti-soc-thermal: use standard GPIO DT bindings

This change updates the ti-soc-thermal driver to use
standard GPIO DT bindings to read the GPIO number associated
to thermal shutdown IRQ, in case the device features it.

Previously, the code was using a specific DT bindings.
As now OMAP supports the standard way to model GPIOs,
there is no point in having a ti specific binding.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 7c0b3ebcf83a..9dfd47196e63 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -38,6 +38,7 @@
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #include <linux/of_irq.h>
+#include <linux/of_gpio.h>
 #include <linux/io.h>
 
 #include "ti-bandgap.h"
@@ -1129,7 +1130,6 @@ static struct ti_bandgap *ti_bandgap_build(struct platform_device *pdev)
         const struct of_device_id *of_id;
         struct ti_bandgap *bgp;
         struct resource *res;
-        u32 prop;
         int i;
 
         /* just for the sake */
@@ -1173,11 +1173,7 @@ static struct ti_bandgap *ti_bandgap_build(struct platform_device *pdev)
         } while (res);
 
         if (TI_BANDGAP_HAS(bgp, TSHUT)) {
-                if (of_property_read_u32(node, "ti,tshut-gpio", &prop) < 0) {
-                        dev_err(&pdev->dev, "missing tshut gpio in device tree\n");
-                        return ERR_PTR(-EINVAL);
-                }
-                bgp->tshut_gpio = prop;
+                bgp->tshut_gpio = of_get_gpio(node, 0);
                 if (!gpio_is_valid(bgp->tshut_gpio)) {
                         dev_err(&pdev->dev, "invalid gpio for tshut (%d)\n",
                                 bgp->tshut_gpio);