[PATCH -next] drm/amd/dc: Remove a useless comparison

[ChenTao]

Fix the following warning:

'en' is uint32_t and can never be negative.

drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_hpd.c:132:10: warning:
comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if ((en < GPIO_DDC_LINE_MIN) || (en > GPIO_DDC_LINE_MAX)) {
drivers/gpu/drm/amd/amdgpu/../display/dc/gpio/hw_generic.c:109:10: warning:
comparison of unsigned expression < 0 is always false [-Wtype-limits]
  if ((en < GPIO_DDC_LINE_MIN) || (en > GPIO_DDC_LINE_MAX)) {

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: ChenTao <chentao...@huawei.com>
---
 drivers/gpu/drm/amd/display/dc/gpio/hw_generic.c | 2 +-
 drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/gpio/hw_generic.c 
b/drivers/gpu/drm/amd/display/dc/gpio/hw_generic.c
index f9e847e6555d..6cd50232c432 100644
--- a/drivers/gpu/drm/amd/display/dc/gpio/hw_generic.c
+++ b/drivers/gpu/drm/amd/display/dc/gpio/hw_generic.c
@@ -106,7 +106,7 @@ void dal_hw_generic_init(
        enum gpio_id id,
        uint32_t en)
 {
-       if ((en < GPIO_DDC_LINE_MIN) || (en > GPIO_DDC_LINE_MAX)) {
+       if (en > GPIO_DDC_LINE_MAX) {
                ASSERT_CRITICAL(false);
                *hw_generic = NULL;
        }
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c 
b/drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c
index 692f29de7797..f91f426699c0 100644
--- a/drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c
+++ b/drivers/gpu/drm/amd/display/dc/gpio/hw_hpd.c
@@ -129,7 +129,7 @@ void dal_hw_hpd_init(
        enum gpio_id id,
        uint32_t en)
 {
-       if ((en < GPIO_DDC_LINE_MIN) || (en > GPIO_DDC_LINE_MAX)) {
+       if (en > GPIO_DDC_LINE_MAX) {
                ASSERT_CRITICAL(false);
                *hw_hpd = NULL;
        }
-- 
2.22.0