drm/amdgpu/dce11: simplify hpd code

use the hpd enum directly as an index

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index f264b8f17ad1b302ebb51f0f37a1805655529470..2696428bed0558721cffed59be4854c3a688b2e5 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -346,33 +346,12 @@ static int dce_v11_0_crtc_get_scanoutpos(struct amdgpu_device *adev, int crtc,
 static bool dce_v11_0_hpd_sense(struct amdgpu_device *adev,
                               enum amdgpu_hpd_id hpd)
 {
-       int idx;
        bool connected = false;
 
-       switch (hpd) {
-       case AMDGPU_HPD_1:
-               idx = 0;
-               break;
-       case AMDGPU_HPD_2:
-               idx = 1;
-               break;
-       case AMDGPU_HPD_3:
-               idx = 2;
-               break;
-       case AMDGPU_HPD_4:
-               idx = 3;
-               break;
-       case AMDGPU_HPD_5:
-               idx = 4;
-               break;
-       case AMDGPU_HPD_6:
-               idx = 5;
-               break;
-       default:
+       if (hpd >= adev->mode_info.num_hpd)
                return connected;
-       }
 
-       if (RREG32(mmDC_HPD_INT_STATUS + hpd_offsets[idx]) &
+       if (RREG32(mmDC_HPD_INT_STATUS + hpd_offsets[hpd]) &
            DC_HPD_INT_STATUS__DC_HPD_SENSE_MASK)
                connected = true;
 
@@ -392,37 +371,16 @@ static void dce_v11_0_hpd_set_polarity(struct amdgpu_device *adev,
 {
        u32 tmp;
        bool connected = dce_v11_0_hpd_sense(adev, hpd);
-       int idx;
 
-       switch (hpd) {
-       case AMDGPU_HPD_1:
-               idx = 0;
-               break;
-       case AMDGPU_HPD_2:
-               idx = 1;
-               break;
-       case AMDGPU_HPD_3:
-               idx = 2;
-               break;
-       case AMDGPU_HPD_4:
-               idx = 3;
-               break;
-       case AMDGPU_HPD_5:
-               idx = 4;
-               break;
-       case AMDGPU_HPD_6:
-               idx = 5;
-               break;
-       default:
+       if (hpd >= adev->mode_info.num_hpd)
                return;
-       }
 
-       tmp = RREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx]);
+       tmp = RREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[hpd]);
        if (connected)
                tmp = REG_SET_FIELD(tmp, DC_HPD_INT_CONTROL, DC_HPD_INT_POLARITY, 0);
        else
                tmp = REG_SET_FIELD(tmp, DC_HPD_INT_CONTROL, DC_HPD_INT_POLARITY, 1);
-       WREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx], tmp);
+       WREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[hpd], tmp);
 }
 
 /**
@@ -438,33 +396,12 @@ static void dce_v11_0_hpd_init(struct amdgpu_device *adev)
        struct drm_device *dev = adev->ddev;
        struct drm_connector *connector;
        u32 tmp;
-       int idx;
 
        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 
-               switch (amdgpu_connector->hpd.hpd) {
-               case AMDGPU_HPD_1:
-                       idx = 0;
-                       break;
-               case AMDGPU_HPD_2:
-                       idx = 1;
-                       break;
-               case AMDGPU_HPD_3:
-                       idx = 2;
-                       break;
-               case AMDGPU_HPD_4:
-                       idx = 3;
-                       break;
-               case AMDGPU_HPD_5:
-                       idx = 4;
-                       break;
-               case AMDGPU_HPD_6:
-                       idx = 5;
-                       break;
-               default:
+               if (amdgpu_connector->hpd.hpd >= adev->mode_info.num_hpd)
                        continue;
-               }
 
                if (connector->connector_type == DRM_MODE_CONNECTOR_eDP ||
                    connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
@@ -473,24 +410,24 @@ static void dce_v11_0_hpd_init(struct amdgpu_device *adev)
                         * https://bugzilla.redhat.com/show_bug.cgi?id=726143
                         * also avoid interrupt storms during dpms.
                         */
-                       tmp = RREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx]);
+                       tmp = RREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd]);
                        tmp = REG_SET_FIELD(tmp, DC_HPD_INT_CONTROL, DC_HPD_INT_EN, 0);
-                       WREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[idx], tmp);
+                       WREG32(mmDC_HPD_INT_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd], tmp);
                        continue;
                }
 
-               tmp = RREG32(mmDC_HPD_CONTROL + hpd_offsets[idx]);
+               tmp = RREG32(mmDC_HPD_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd]);
                tmp = REG_SET_FIELD(tmp, DC_HPD_CONTROL, DC_HPD_EN, 1);
-               WREG32(mmDC_HPD_CONTROL + hpd_offsets[idx], tmp);
+               WREG32(mmDC_HPD_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd], tmp);
 
-               tmp = RREG32(mmDC_HPD_TOGGLE_FILT_CNTL + hpd_offsets[idx]);
+               tmp = RREG32(mmDC_HPD_TOGGLE_FILT_CNTL + hpd_offsets[amdgpu_connector->hpd.hpd]);
                tmp = REG_SET_FIELD(tmp, DC_HPD_TOGGLE_FILT_CNTL,
                                    DC_HPD_CONNECT_INT_DELAY,
                                    AMDGPU_HPD_CONNECT_INT_DELAY_IN_MS);
                tmp = REG_SET_FIELD(tmp, DC_HPD_TOGGLE_FILT_CNTL,
                                    DC_HPD_DISCONNECT_INT_DELAY,
                                    AMDGPU_HPD_DISCONNECT_INT_DELAY_IN_MS);
-               WREG32(mmDC_HPD_TOGGLE_FILT_CNTL + hpd_offsets[idx], tmp);
+               WREG32(mmDC_HPD_TOGGLE_FILT_CNTL + hpd_offsets[amdgpu_connector->hpd.hpd], tmp);
 
                dce_v11_0_hpd_set_polarity(adev, amdgpu_connector->hpd.hpd);
                amdgpu_irq_get(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd);
@@ -510,37 +447,16 @@ static void dce_v11_0_hpd_fini(struct amdgpu_device *adev)
        struct drm_device *dev = adev->ddev;
        struct drm_connector *connector;
        u32 tmp;
-       int idx;
 
        list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
                struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
 
-               switch (amdgpu_connector->hpd.hpd) {
-               case AMDGPU_HPD_1:
-                       idx = 0;
-                       break;
-               case AMDGPU_HPD_2:
-                       idx = 1;
-                       break;
-               case AMDGPU_HPD_3:
-                       idx = 2;
-                       break;
-               case AMDGPU_HPD_4:
-                       idx = 3;
-                       break;
-               case AMDGPU_HPD_5:
-                       idx = 4;
-                       break;
-               case AMDGPU_HPD_6:
-                       idx = 5;
-                       break;
-               default:
+               if (amdgpu_connector->hpd.hpd >= adev->mode_info.num_hpd)
                        continue;
-               }
 
-               tmp = RREG32(mmDC_HPD_CONTROL + hpd_offsets[idx]);
+               tmp = RREG32(mmDC_HPD_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd]);
                tmp = REG_SET_FIELD(tmp, DC_HPD_CONTROL, DC_HPD_EN, 0);
-               WREG32(mmDC_HPD_CONTROL + hpd_offsets[idx], tmp);
+               WREG32(mmDC_HPD_CONTROL + hpd_offsets[amdgpu_connector->hpd.hpd], tmp);
 
                amdgpu_irq_put(adev, &adev->hpd_irq, amdgpu_connector->hpd.hpd);
        }