[Intel-gfx] [PATCH] drm/i915/bxt: Fix off-by-one error in Broxton PLL IDs

[Imre Deak]

After the commit below the Broxton PLL IDs had an off-by-one error, so
fix this up. Also add a missing brace at intel_shared_dpll_init(), it
happened to compile only due to the way the IS_BROXTON macro is defined.

Fixes: a3c988ea068c ("drm/i915: Make SKL/KBL DPLL0 managed by the shared dpll code")
CC: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira at intel.com>
CC: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/intel_display.c  | 9 ++++++---
 drivers/gpu/drm/i915/intel_dpll_mgr.c | 8 ++++----
 2 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a720628..0167f67 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9762,21 +9762,24 @@ static void bxt_get_ddi_pll(struct drm_i915_private *dev_priv,
 	switch (port) {
 	case PORT_A:
 		pipe_config->ddi_pll_sel = SKL_DPLL0;
-		id = DPLL_ID_SKL_DPLL1;
+		id = DPLL_ID_SKL_DPLL0;
 		break;
 	case PORT_B:
 		pipe_config->ddi_pll_sel = SKL_DPLL1;
-		id = DPLL_ID_SKL_DPLL2;
+		id = DPLL_ID_SKL_DPLL1;
 		break;
 	case PORT_C:
 		pipe_config->ddi_pll_sel = SKL_DPLL2;
-		id = DPLL_ID_SKL_DPLL3;
+		id = DPLL_ID_SKL_DPLL2;
 		break;
 	default:
 		DRM_ERROR("Incorrect port type\n");
 		return;
 	}
 
+	DRM_DEBUG_DRIVER("port %c PLL id %d\n", port_name(port),
+			 id);
+
 	pipe_config->shared_dpll = intel_get_shared_dpll_by_id(dev_priv, id);
 }
 
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 4b636c4..74d5aec 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -1706,9 +1706,9 @@ static const struct intel_dpll_mgr skl_pll_mgr = {
 };
 
 static const struct dpll_info bxt_plls[] = {
-	{ "PORT PLL A", 0, &bxt_ddi_pll_funcs, 0 },
-	{ "PORT PLL B", 1, &bxt_ddi_pll_funcs, 0 },
-	{ "PORT PLL C", 2, &bxt_ddi_pll_funcs, 0 },
+	{ "PORT PLL A", DPLL_ID_SKL_DPLL0, &bxt_ddi_pll_funcs, 0 },
+	{ "PORT PLL B", DPLL_ID_SKL_DPLL1, &bxt_ddi_pll_funcs, 0 },
+	{ "PORT PLL C", DPLL_ID_SKL_DPLL2, &bxt_ddi_pll_funcs, 0 },
 	{ NULL, -1, NULL, },
 };
 
@@ -1726,7 +1726,7 @@ void intel_shared_dpll_init(struct drm_device *dev)
 
 	if (IS_SKYLAKE(dev) || IS_KABYLAKE(dev))
 		dpll_mgr = &skl_pll_mgr;
-	else if IS_BROXTON(dev)
+	else if (IS_BROXTON(dev))
 		dpll_mgr = &bxt_pll_mgr;
 	else if (HAS_DDI(dev))
 		dpll_mgr = &hsw_pll_mgr;
-- 
2.5.0