diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/icl_dsi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/icl_dsi.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/display/icl_dsi.c b/drivers/gpu/drm/i915/display/icl_dsi.c index 9282978060b0..16812488c5dd 100644 --- a/drivers/gpu/drm/i915/display/icl_dsi.c +++ b/drivers/gpu/drm/i915/display/icl_dsi.c @@ -31,7 +31,9 @@ #include "intel_atomic.h" #include "intel_combo_phy.h" #include "intel_connector.h" +#include "intel_crtc.h" #include "intel_ddi.h" +#include "intel_de.h" #include "intel_dsi.h" #include "intel_panel.h" #include "intel_vdsc.h" @@ -361,10 +363,19 @@ static void gen11_dsi_program_esc_clk_div(struct intel_encoder *encoder, struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder); enum port port; int afe_clk_khz; - u32 esc_clk_div_m; + int theo_word_clk, act_word_clk; + u32 esc_clk_div_m, esc_clk_div_m_phy; afe_clk_khz = afe_clk(encoder, crtc_state); - esc_clk_div_m = DIV_ROUND_UP(afe_clk_khz, DSI_MAX_ESC_CLK); + + if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv)) { + theo_word_clk = DIV_ROUND_UP(afe_clk_khz, 8 * DSI_MAX_ESC_CLK); + act_word_clk = max(3, theo_word_clk + (theo_word_clk + 1) % 2); + esc_clk_div_m = act_word_clk * 8; + esc_clk_div_m_phy = (act_word_clk - 1) / 2; + } else { + esc_clk_div_m = DIV_ROUND_UP(afe_clk_khz, DSI_MAX_ESC_CLK); + } for_each_dsi_port(port, intel_dsi->ports) { intel_de_write(dev_priv, ICL_DSI_ESC_CLK_DIV(port), @@ -377,6 +388,14 @@ static void gen11_dsi_program_esc_clk_div(struct intel_encoder *encoder, esc_clk_div_m & ICL_ESC_CLK_DIV_MASK); intel_de_posting_read(dev_priv, ICL_DPHY_ESC_CLK_DIV(port)); } + + if (IS_ALDERLAKE_S(dev_priv) || IS_ALDERLAKE_P(dev_priv)) { + for_each_dsi_port(port, intel_dsi->ports) { + intel_de_write(dev_priv, ADL_MIPIO_DW(port, 8), + esc_clk_div_m_phy & TX_ESC_CLK_DIV_PHY); + intel_de_posting_read(dev_priv, ADL_MIPIO_DW(port, 8)); + } + } } static void get_dsi_io_power_domains(struct drm_i915_private *dev_priv, @@ -592,7 +611,7 @@ gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder, * a value '0' inside TA_PARAM_REGISTERS otherwise * leave all fields at HW default values. */ - if (IS_DISPLAY_VER(dev_priv, 11)) { + if (DISPLAY_VER(dev_priv) == 11) { if (afe_clk(encoder, crtc_state) <= 800000) { for_each_dsi_port(port, intel_dsi->ports) { tmp = intel_de_read(dev_priv, @@ -1158,7 +1177,7 @@ gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder, gen11_dsi_configure_transcoder(encoder, crtc_state); /* Step 4l: Gate DDI clocks */ - if (IS_DISPLAY_VER(dev_priv, 11)) + if (DISPLAY_VER(dev_priv) == 11) gen11_dsi_gate_clocks(encoder); } |