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drm/i915/display: Use helper to select C20 MPLLA/B

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We used to select between MPLLA/B with the following

state->tx[0] & C20_PHY_USE_MPLLB

Since this is used a few places within C20 PLL setting,
let's introduce a helper function to clean up the code
a bit.

Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240105112243.224199-1-mika.kahola@intel.com
This commit is contained in:
Mika Kahola 2024-01-05 13:22:43 +02:00
parent c27f010aa1
commit 0fa647659c
1 changed files with 11 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/gpu/drm/i915/display/intel_cx0_phy.c
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@ -2096,6 +2096,11 @@ int intel_cx0pll_calc_state(struct intel_crtc_state *crtc_state,
return intel_c20pll_calc_state(crtc_state, encoder);
}
static bool intel_c20phy_use_mpllb(const struct intel_c20pll_state *state)
{
return state->tx[0] & C20_PHY_USE_MPLLB;
}
static int intel_c20pll_calc_port_clock(struct intel_encoder *encoder,
const struct intel_c20pll_state *pll_state)
{
@ -2108,7 +2113,7 @@ static int intel_c20pll_calc_port_clock(struct intel_encoder *encoder,
unsigned int tx_rate_mult;
unsigned int tx_rate = REG_FIELD_GET(C20_PHY_TX_RATE, pll_state->tx[0]);
if (pll_state->tx[0] & C20_PHY_USE_MPLLB) {
if (intel_c20phy_use_mpllb(pll_state)) {
tx_rate_mult = 1;
frac_en = REG_FIELD_GET(C20_MPLLB_FRACEN, pll_state->mpllb[6]);
frac_quot = pll_state->mpllb[8];
@ -2174,7 +2179,7 @@ static void intel_c20pll_readout_hw_state(struct intel_encoder *encoder,
PHY_C20_A_CMN_CNTX_CFG(i));
}
if (pll_state->tx[0] & C20_PHY_USE_MPLLB) {
if (intel_c20phy_use_mpllb(pll_state)) {
/* MPLLB configuration */
for (i = 0; i < ARRAY_SIZE(pll_state->mpllb); i++) {
if (cntx)
@ -2212,7 +2217,7 @@ void intel_c20pll_dump_hw_state(struct drm_i915_private *i915,
drm_dbg_kms(&i915->drm, "cmn[0] = 0x%.4x, cmn[1] = 0x%.4x, cmn[2] = 0x%.4x, cmn[3] = 0x%.4x\n",
hw_state->cmn[0], hw_state->cmn[1], hw_state->cmn[2], hw_state->cmn[3]);
if (hw_state->tx[0] & C20_PHY_USE_MPLLB) {
if (intel_c20phy_use_mpllb(hw_state)) {
for (i = 0; i < ARRAY_SIZE(hw_state->mpllb); i++)
drm_dbg_kms(&i915->drm, "mpllb[%d] = 0x%.4x\n", i, hw_state->mpllb[i]);
} else {
@ -2364,7 +2369,7 @@ static void intel_c20_pll_program(struct drm_i915_private *i915,
}
/* 3.3 mpllb or mplla configuration */
if (pll_state->tx[0] & C20_PHY_USE_MPLLB) {
if (intel_c20phy_use_mpllb(pll_state)) {
for (i = 0; i < ARRAY_SIZE(pll_state->mpllb); i++) {
if (cntx)
intel_c20_sram_write(i915, encoder->port, INTEL_CX0_LANE0,
@ -3063,8 +3068,8 @@ static void intel_c20pll_state_verify(const struct intel_crtc_state *state,
{
struct drm_i915_private *i915 = to_i915(crtc->base.dev);
const struct intel_c20pll_state *mpll_sw_state = &state->cx0pll_state.c20;
bool sw_use_mpllb = mpll_sw_state->tx[0] & C20_PHY_USE_MPLLB;
bool hw_use_mpllb = mpll_hw_state->tx[0] & C20_PHY_USE_MPLLB;
bool sw_use_mpllb = intel_c20phy_use_mpllb(mpll_sw_state);
bool hw_use_mpllb = intel_c20phy_use_mpllb(mpll_hw_state);
int i;
I915_STATE_WARN(i915, mpll_hw_state->clock != mpll_sw_state->clock,