| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/mmio.h> |
| #include <soc/clock.h> |
| #include <soc/display/mdssreg.h> |
| |
| void enable_mdss_clk(void) |
| { |
| mdss_clock_enable(GCC_DISP_AHB); |
| |
| // enable gdsc before enabling clocks. |
| clock_enable_gdsc(MDSS_CORE_GDSC); |
| |
| mdss_clock_enable(GCC_DISP_HF_AXI); |
| mdss_clock_enable(GCC_DISP_SF_AXI); |
| mdss_clock_enable(MDSS_CLK_AHB); |
| mdss_clock_configure(MDSS_CLK_MDP, 400 * MHz, 0, 0, 0, 0, 0); |
| mdss_clock_enable(MDSS_CLK_MDP); |
| mdss_clock_configure(MDSS_CLK_VSYNC, 0, 0, 0, 0, 0, 0); |
| mdss_clock_enable(MDSS_CLK_VSYNC); |
| } |
| |
| void mdss_intf_tg_setup(struct edid *edid) |
| { |
| uint32_t hsync_period, vsync_period; |
| uint32_t active_vstart, active_vend, active_hctl; |
| uint32_t display_hctl, hsync_ctl, display_vstart, display_vend; |
| |
| hsync_period = edid->mode.ha + edid->mode.hbl; |
| vsync_period = edid->mode.va + edid->mode.vbl; |
| display_vstart = edid->mode.vbl * hsync_period + edid->mode.hbl; |
| display_vend = (vsync_period * hsync_period) - 1; |
| hsync_ctl = (hsync_period << 16) | edid->mode.hspw; |
| display_hctl = edid->mode.hbl | (hsync_period - 1) << 16; |
| active_vstart = edid->mode.vbl * hsync_period; |
| active_vend = display_vend; |
| active_hctl = display_hctl; |
| |
| write32(&mdp_intf->intf_active_v_start_f0, active_vstart); |
| write32(&mdp_intf->intf_active_v_end_f0, active_vend); |
| write32(&mdp_intf->intf_active_hctl, active_hctl); |
| write32(&mdp_intf->display_data_hctl, display_hctl); |
| write32(&mdp_intf->intf_hsync_ctl, hsync_ctl); |
| write32(&mdp_intf->intf_vysnc_period_f0, vsync_period * hsync_period); |
| write32(&mdp_intf->intf_vysnc_pulse_width_f0, edid->mode.vspw * hsync_period); |
| write32(&mdp_intf->intf_disp_hctl, display_hctl); |
| write32(&mdp_intf->intf_disp_v_start_f0, display_vstart); |
| write32(&mdp_intf->intf_disp_v_end_f0, display_vend); |
| write32(&mdp_intf->intf_underflow_color, 0x00); |
| } |
| |
| void mdss_ctrl_config(void) |
| { |
| /* Select vigo pipe active */ |
| write32(&mdp_ctl->ctl_fetch_pipe_active, FETCH_PIPE_VIG0_ACTIVE); |
| |
| /* PPB0 to INTF1 */ |
| write32(&mdp_ctl->ctl_intf_active, INTF_ACTIVE_5); |
| |
| } |