media: camera: Ensure gpio_device_get_chip is present

In Linux v6.7, both gpio_device_find() and gpio_device_get_chip() were
added. However, don't assume that if one is present then so is the other
and so add a test to check if gpio_device_get_chip() is also present.

Bug 4471899

Change-Id: I0c547a52b0f397aef43884ab76d815573e8ed3f8
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3112133
(cherry picked from commit 9458d6b97f)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3119068
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

scripts/conftest/conftest.sh

@@ -7092,6 +7092,23 @@ compile_test() {
             fi
         ;;
 
+        gpio_device_get_chip)
+            #
+            # Determine if function gpio_device_get_chip() is present.
+            #
+            # Added by commit 9b418780844c ("gpiolib: reluctantly provide
+            # gpio_device_get_chip()") in Linux v6.7.
+            #
+            CODE="
+            #include <linux/gpio/driver.h>
+            void conftest_gpio_device_get_chip(void)
+            {
+                gpio_device_get_chip();
+            }"
+
+            compile_check_conftest "$CODE" "NV_GPIO_DEVICE_GET_CHIP_PRESENT" "" "functions"
+        ;;
+
         netif_set_tso_max_size)
             #
             # Determine if netif_set_tso_max_size() function is present