diff options
| author | Andrzej Hajda <andrzej.hajda@intel.com> | 2023-02-17 14:18:36 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-02-21 21:44:50 +0300 |
| commit | 992ed9d525609e2bcef9207c25fe2b1949f158f1 (patch) | |
| tree | e734e695e985d25e303c1301719a98d8e7262bb1 /drivers/gpu/drm/i915/display/intel_display_power.c | |
| parent | 9548fefcaf9ab61291c0bd427627aa773b19dc75 (diff) | |
| download | linux-992ed9d525609e2bcef9207c25fe2b1949f158f1.tar.xz | |
drm/i915/display/power: use intel_de_rmw if possible
The helper makes the code more compact and readable.
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230217111836.864959-1-andrzej.hajda@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display_power.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 49 |
1 files changed, 14 insertions, 35 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 7222502a760c..743b919bb2cf 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -1260,9 +1260,7 @@ static void hsw_disable_lcpll(struct drm_i915_private *dev_priv, drm_err(&dev_priv->drm, "D_COMP RCOMP still in progress\n"); if (allow_power_down) { - val = intel_de_read(dev_priv, LCPLL_CTL); - val |= LCPLL_POWER_DOWN_ALLOW; - intel_de_write(dev_priv, LCPLL_CTL, val); + intel_de_rmw(dev_priv, LCPLL_CTL, 0, LCPLL_POWER_DOWN_ALLOW); intel_de_posting_read(dev_priv, LCPLL_CTL); } } @@ -1306,9 +1304,7 @@ static void hsw_restore_lcpll(struct drm_i915_private *dev_priv) drm_err(&dev_priv->drm, "LCPLL not locked yet\n"); if (val & LCPLL_CD_SOURCE_FCLK) { - val = intel_de_read(dev_priv, LCPLL_CTL); - val &= ~LCPLL_CD_SOURCE_FCLK; - intel_de_write(dev_priv, LCPLL_CTL, val); + intel_de_rmw(dev_priv, LCPLL_CTL, LCPLL_CD_SOURCE_FCLK, 0); if (wait_for_us((intel_de_read(dev_priv, LCPLL_CTL) & LCPLL_CD_SOURCE_FCLK_DONE) == 0, 1)) @@ -1347,15 +1343,11 @@ static void hsw_restore_lcpll(struct drm_i915_private *dev_priv) */ static void hsw_enable_pc8(struct drm_i915_private *dev_priv) { - u32 val; - drm_dbg_kms(&dev_priv->drm, "Enabling package C8+\n"); - if (HAS_PCH_LPT_LP(dev_priv)) { - val = intel_de_read(dev_priv, SOUTH_DSPCLK_GATE_D); - val &= ~PCH_LP_PARTITION_LEVEL_DISABLE; - intel_de_write(dev_priv, SOUTH_DSPCLK_GATE_D, val); - } + if (HAS_PCH_LPT_LP(dev_priv)) + intel_de_rmw(dev_priv, SOUTH_DSPCLK_GATE_D, + PCH_LP_PARTITION_LEVEL_DISABLE, 0); lpt_disable_clkout_dp(dev_priv); hsw_disable_lcpll(dev_priv, true, true); @@ -1363,25 +1355,21 @@ static void hsw_enable_pc8(struct drm_i915_private *dev_priv) static void hsw_disable_pc8(struct drm_i915_private *dev_priv) { - u32 val; - drm_dbg_kms(&dev_priv->drm, "Disabling package C8+\n"); hsw_restore_lcpll(dev_priv); intel_init_pch_refclk(dev_priv); - if (HAS_PCH_LPT_LP(dev_priv)) { - val = intel_de_read(dev_priv, SOUTH_DSPCLK_GATE_D); - val |= PCH_LP_PARTITION_LEVEL_DISABLE; - intel_de_write(dev_priv, SOUTH_DSPCLK_GATE_D, val); - } + if (HAS_PCH_LPT_LP(dev_priv)) + intel_de_rmw(dev_priv, SOUTH_DSPCLK_GATE_D, + 0, PCH_LP_PARTITION_LEVEL_DISABLE); } static void intel_pch_reset_handshake(struct drm_i915_private *dev_priv, bool enable) { i915_reg_t reg; - u32 reset_bits, val; + u32 reset_bits; if (IS_IVYBRIDGE(dev_priv)) { reg = GEN7_MSG_CTL; @@ -1394,14 +1382,7 @@ static void intel_pch_reset_handshake(struct drm_i915_private *dev_priv, if (DISPLAY_VER(dev_priv) >= 14) reset_bits |= MTL_RESET_PICA_HANDSHAKE_EN; - val = intel_de_read(dev_priv, reg); - - if (enable) - val |= reset_bits; - else - val &= ~reset_bits; - - intel_de_write(dev_priv, reg, val); + intel_de_rmw(dev_priv, reg, reset_bits, enable ? reset_bits : 0); } static void skl_display_core_init(struct drm_i915_private *dev_priv, @@ -1616,7 +1597,6 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv, { struct i915_power_domains *power_domains = &dev_priv->display.power.domains; struct i915_power_well *well; - u32 val; gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); @@ -1668,11 +1648,10 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv, intel_dmc_load_program(dev_priv); /* Wa_14011508470:tgl,dg1,rkl,adl-s,adl-p */ - if (DISPLAY_VER(dev_priv) >= 12) { - val = DCPR_CLEAR_MEMSTAT_DIS | DCPR_SEND_RESP_IMM | - DCPR_MASK_LPMODE | DCPR_MASK_MAXLATENCY_MEMUP_CLR; - intel_de_rmw(dev_priv, GEN11_CHICKEN_DCPR_2, 0, val); - } + if (DISPLAY_VER(dev_priv) >= 12) + intel_de_rmw(dev_priv, GEN11_CHICKEN_DCPR_2, 0, + DCPR_CLEAR_MEMSTAT_DIS | DCPR_SEND_RESP_IMM | + DCPR_MASK_LPMODE | DCPR_MASK_MAXLATENCY_MEMUP_CLR); /* Wa_14011503030:xelpd */ if (DISPLAY_VER(dev_priv) >= 13) |