drm/amd/display: Refine disable VGA
bad case won't follow normal sense, it will not enable vga1 as usual, but vga2,3,4 is on. Signed-off-by: Clark Zheng <clark.zheng@amd.com> Reviewed-by: Tony Cheng <tony.cheng@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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219be9dda6
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@ -496,6 +496,9 @@ struct dce_hwseq_registers {
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HWS_SF(, DOMAIN7_PG_STATUS, DOMAIN7_PGFSM_PWR_STATUS, mask_sh), \
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HWS_SF(, DC_IP_REQUEST_CNTL, IP_REQUEST_EN, mask_sh), \
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HWS_SF(, D1VGA_CONTROL, D1VGA_MODE_ENABLE, mask_sh),\
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HWS_SF(, D2VGA_CONTROL, D2VGA_MODE_ENABLE, mask_sh),\
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HWS_SF(, D3VGA_CONTROL, D3VGA_MODE_ENABLE, mask_sh),\
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HWS_SF(, D4VGA_CONTROL, D4VGA_MODE_ENABLE, mask_sh),\
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HWS_SF(, VGA_TEST_CONTROL, VGA_TEST_ENABLE, mask_sh),\
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HWS_SF(, VGA_TEST_CONTROL, VGA_TEST_RENDER_START, mask_sh),\
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HWS_SF(, LVTMA_PWRSEQ_CNTL, LVTMA_BLON, mask_sh), \
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@ -591,7 +594,10 @@ struct dce_hwseq_registers {
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type DENTIST_DISPCLK_WDIVIDER; \
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type VGA_TEST_ENABLE; \
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type VGA_TEST_RENDER_START; \
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type D1VGA_MODE_ENABLE;
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type D1VGA_MODE_ENABLE; \
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type D2VGA_MODE_ENABLE; \
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type D3VGA_MODE_ENABLE; \
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type D4VGA_MODE_ENABLE;
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struct dce_hwseq_shift {
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HWSEQ_REG_FIELD_LIST(uint8_t)
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@ -238,14 +238,24 @@ static void enable_power_gating_plane(
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static void disable_vga(
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struct dce_hwseq *hws)
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{
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unsigned int in_vga_mode = 0;
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unsigned int in_vga1_mode = 0;
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unsigned int in_vga2_mode = 0;
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unsigned int in_vga3_mode = 0;
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unsigned int in_vga4_mode = 0;
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REG_GET(D1VGA_CONTROL, D1VGA_MODE_ENABLE, &in_vga_mode);
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REG_GET(D1VGA_CONTROL, D1VGA_MODE_ENABLE, &in_vga1_mode);
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REG_GET(D2VGA_CONTROL, D2VGA_MODE_ENABLE, &in_vga2_mode);
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REG_GET(D3VGA_CONTROL, D3VGA_MODE_ENABLE, &in_vga3_mode);
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REG_GET(D4VGA_CONTROL, D4VGA_MODE_ENABLE, &in_vga4_mode);
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if (in_vga_mode == 0)
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if (in_vga1_mode == 0 && in_vga2_mode == 0 &&
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in_vga3_mode == 0 && in_vga4_mode == 0)
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return;
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REG_WRITE(D1VGA_CONTROL, 0);
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REG_WRITE(D2VGA_CONTROL, 0);
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REG_WRITE(D3VGA_CONTROL, 0);
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REG_WRITE(D4VGA_CONTROL, 0);
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/* HW Engineer's Notes:
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* During switch from vga->extended, if we set the VGA_TEST_ENABLE and
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