We should not pass DPLL_ID_ICL_DPLL0 or DPLL_ID_ICL_DPLL1 to this
function because the path is only taken for non-combophy ports. Let the
warning trigger if improper value is given.
While at it, rename the function to match the register name we are
trying to program.
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_ddi.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 4dc03e8c6c10..94d0fdc14b42 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -995,7 +995,7 @@ static uint32_t hsw_pll_to_ddi_pll_sel(const struct intel_shared_dpll *pll)
}
}
-static uint32_t icl_pll_to_ddi_pll_sel(struct intel_encoder *encoder,
+static uint32_t icl_pll_to_ddi_clk_sel(struct intel_encoder *encoder,
const struct intel_crtc_state *crtc_state)
{
const struct intel_shared_dpll *pll = crtc_state->shared_dpll;
@@ -1004,10 +1004,11 @@ static uint32_t icl_pll_to_ddi_pll_sel(struct intel_encoder *encoder,
switch (id) {
default:
+ /*
+ * DPLL_ID_ICL_DPLL0 and DPLL_ID_ICL_DPLL1 should not be use
+ * here, so do warn if this get passed in
+ */
MISSING_CASE(id);
- /* fall through */
- case DPLL_ID_ICL_DPLL0:
- case DPLL_ID_ICL_DPLL1:
return DDI_CLK_SEL_NONE;
case DPLL_ID_ICL_TBTPLL:
switch (clock) {
@@ -2869,7 +2870,7 @@ static void intel_ddi_clk_select(struct intel_encoder *encoder,
if (IS_ICELAKE(dev_priv)) {
if (!intel_port_is_combophy(dev_priv, port))
I915_WRITE(DDI_CLK_SEL(port),
- icl_pll_to_ddi_pll_sel(encoder, crtc_state));
+ icl_pll_to_ddi_clk_sel(encoder, crtc_state));
} else if (IS_CANNONLAKE(dev_priv)) {
/* Configure DPCLKA_CFGCR0 to map the DPLL to the DDI. */
val = I915_READ(DPCLKA_CFGCR0);
--
2.20.0
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