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drm/i915/icl: start adding the TBT pll

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This commit just adds the register addresses and the basic skeleton of
the code. The next commits will expand on more specific functions.

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-15-paulo.r.zanoni@intel.com
This commit is contained in:
Paulo Zanoni 2018-05-21 17:25:48 -07:00
parent 00c92d929a
commit 1fa11ee2d9
4 changed files with 47 additions and 9 deletions
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6
drivers/gpu/drm/i915/i915_reg.h
View File

@ -8836,6 +8836,10 @@ enum skl_power_gate {
#define DDI_CLK_SEL(port) PORT_CLK_SEL(port)
#define DDI_CLK_SEL_NONE (0x0 << 28)
#define DDI_CLK_SEL_MG (0x8 << 28)
#define DDI_CLK_SEL_TBT_162 (0xC << 28)
#define DDI_CLK_SEL_TBT_270 (0xD << 28)
#define DDI_CLK_SEL_TBT_540 (0xE << 28)
#define DDI_CLK_SEL_TBT_810 (0xF << 28)
#define DDI_CLK_SEL_MASK (0xF << 28)
/* Transcoder clock selection */
@ -8985,6 +8989,8 @@ enum skl_power_gate {
#define PLL_POWER_STATE (1 << 26)
#define CNL_DPLL_ENABLE(pll) _MMIO_PLL(pll, DPLL0_ENABLE, DPLL1_ENABLE)
#define TBT_PLL_ENABLE _MMIO(0x46020)
#define _MG_PLL1_ENABLE 0x46030
#define _MG_PLL2_ENABLE 0x46034
#define _MG_PLL3_ENABLE 0x46038

16
drivers/gpu/drm/i915/intel_ddi.c
View File

@ -1062,6 +1062,8 @@ 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,
const struct intel_shared_dpll *pll)
{
struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
int clock = crtc->config->port_clock;
const enum intel_dpll_id id = pll->info->id;
switch (id) {
@ -1070,6 +1072,20 @@ static uint32_t icl_pll_to_ddi_pll_sel(struct intel_encoder *encoder,
case DPLL_ID_ICL_DPLL0:
case DPLL_ID_ICL_DPLL1:
return DDI_CLK_SEL_NONE;
case DPLL_ID_ICL_TBTPLL:
switch (clock) {
case 162000:
return DDI_CLK_SEL_TBT_162;
case 270000:
return DDI_CLK_SEL_TBT_270;
case 540000:
return DDI_CLK_SEL_TBT_540;
case 810000:
return DDI_CLK_SEL_TBT_810;
default:
MISSING_CASE(clock);
break;
}
case DPLL_ID_ICL_MGPLL1:
case DPLL_ID_ICL_MGPLL2:
case DPLL_ID_ICL_MGPLL3:

12
drivers/gpu/drm/i915/intel_dpll_mgr.c
View File

@ -2857,10 +2857,17 @@ icl_get_dpll(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state,
case PORT_D:
case PORT_E:
case PORT_F:
if (0 /* TODO: TBT PLLs */) {
min = DPLL_ID_ICL_TBTPLL;
max = min;
ret = icl_calc_dpll_state(crtc_state, encoder, clock,
&pll_state);
} else {
min = icl_port_to_mg_pll_id(port);
max = min;
ret = icl_calc_mg_pll_state(crtc_state, encoder, clock,
&pll_state);
}
break;
default:
MISSING_CASE(port);
@ -2893,6 +2900,8 @@ static i915_reg_t icl_pll_id_to_enable_reg(enum intel_dpll_id id)
case DPLL_ID_ICL_DPLL0:
case DPLL_ID_ICL_DPLL1:
return CNL_DPLL_ENABLE(id);
case DPLL_ID_ICL_TBTPLL:
return TBT_PLL_ENABLE;
case DPLL_ID_ICL_MGPLL1:
case DPLL_ID_ICL_MGPLL2:
case DPLL_ID_ICL_MGPLL3:
@ -2920,6 +2929,7 @@ static bool icl_pll_get_hw_state(struct drm_i915_private *dev_priv,
switch (id) {
case DPLL_ID_ICL_DPLL0:
case DPLL_ID_ICL_DPLL1:
case DPLL_ID_ICL_TBTPLL:
hw_state->cfgcr0 = I915_READ(ICL_DPLL_CFGCR0(id));
hw_state->cfgcr1 = I915_READ(ICL_DPLL_CFGCR1(id));
break;
@ -3006,6 +3016,7 @@ static void icl_pll_enable(struct drm_i915_private *dev_priv,
switch (id) {
case DPLL_ID_ICL_DPLL0:
case DPLL_ID_ICL_DPLL1:
case DPLL_ID_ICL_TBTPLL:
icl_dpll_write(dev_priv, pll);
break;
case DPLL_ID_ICL_MGPLL1:
@ -3104,6 +3115,7 @@ static const struct intel_shared_dpll_funcs icl_pll_funcs = {
static const struct dpll_info icl_plls[] = {
{ "DPLL 0", &icl_pll_funcs, DPLL_ID_ICL_DPLL0, 0 },
{ "DPLL 1", &icl_pll_funcs, DPLL_ID_ICL_DPLL1, 0 },
{ "TBT PLL", &icl_pll_funcs, DPLL_ID_ICL_TBTPLL, 0 },
{ "MG PLL 1", &icl_pll_funcs, DPLL_ID_ICL_MGPLL1, 0 },
{ "MG PLL 2", &icl_pll_funcs, DPLL_ID_ICL_MGPLL2, 0 },
{ "MG PLL 3", &icl_pll_funcs, DPLL_ID_ICL_MGPLL3, 0 },

14
drivers/gpu/drm/i915/intel_dpll_mgr.h
View File

@ -113,24 +113,28 @@ enum intel_dpll_id {
* @DPLL_ID_ICL_DPLL1: ICL combo PHY DPLL1
*/
DPLL_ID_ICL_DPLL1 = 1,
/**
* @DPLL_ID_ICL_TBTPLL: ICL TBT PLL
*/
DPLL_ID_ICL_TBTPLL = 2,
/**
* @DPLL_ID_ICL_MGPLL1: ICL MG PLL 1 port 1 (C)
*/
DPLL_ID_ICL_MGPLL1 = 2,
DPLL_ID_ICL_MGPLL1 = 3,
/**
* @DPLL_ID_ICL_MGPLL2: ICL MG PLL 1 port 2 (D)
*/
DPLL_ID_ICL_MGPLL2 = 3,
DPLL_ID_ICL_MGPLL2 = 4,
/**
* @DPLL_ID_ICL_MGPLL3: ICL MG PLL 1 port 3 (E)
*/
DPLL_ID_ICL_MGPLL3 = 4,
DPLL_ID_ICL_MGPLL3 = 5,
/**
* @DPLL_ID_ICL_MGPLL4: ICL MG PLL 1 port 4 (F)
*/
DPLL_ID_ICL_MGPLL4 = 5,
DPLL_ID_ICL_MGPLL4 = 6,
};
#define I915_NUM_PLLS 6
#define I915_NUM_PLLS 7
struct intel_dpll_hw_state {
/* i9xx, pch plls */