mfd: hi6421-pmic: Fix Wvoid-pointer-to-enum-cast warning

'type' is an enum, thus cast of pointer on 64-bit compile test with W=1
causes:

  hi6421-pmic-core.c:62:9: error: cast to smaller integer type 'enum hi6421_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]

Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>

Author: krzk

drivers/mfd/hi6421-pmic-core.c

@@ -59,7 +59,7 @@ static int hi6421_pmic_probe(struct platform_device *pdev)
 	id = of_match_device(of_hi6421_pmic_match, &pdev->dev);
 	if (!id)
 		return -EINVAL;
-	type = (enum hi6421_type)id->data;
+	type = (uintptr_t)id->data;
 
 	pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL);
 	if (!pmic)