Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/amd/display: limited pll vco w/a v2
[Why/How]
The w/a will cause reboot black screen issue.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Jingwen Zhu <Jingwen.Zhu@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
authored by
Jingwen Zhu
and committed by
Alex Deucher
3df95751
fa5f99ee
+4
-1
+1
drivers/gpu/drm/amd/display/dmub/dmub_srv.h
+1
drivers/gpu/drm/amd/display/dmub/dmub_srv.h
+2
-1
drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
+2
-1
drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h
···
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843
uint32_t ips_sequential_ono: 1; /**< 1 to enable sequential ONO IPS sequence */
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uint32_t disable_sldo_opt: 1; /**< 1 to disable SLDO optimizations */
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uint32_t lower_hbr3_phy_ssc: 1; /**< 1 to lower hbr3 phy ssc to 0.125 percent */
846
-
uint32_t reserved : 6; /**< reserved */
846
+
uint32_t override_hbr3_pll_vco: 1; /**< 1 to override the hbr3 pll vco to 0 */
847
+
uint32_t reserved : 5; /**< reserved */
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} bits; /**< boot bits */
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uint32_t all; /**< 32-bit access to bits */
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};
+1
drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
+1
drivers/gpu/drm/amd/display/dmub/src/dmub_dcn31.c
···
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377
boot_options.bits.dpia_hpd_int_enable_supported = params->dpia_hpd_int_enable_supported;
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boot_options.bits.power_optimization = params->power_optimization;
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379
boot_options.bits.lower_hbr3_phy_ssc = params->lower_hbr3_phy_ssc;
380
+
boot_options.bits.override_hbr3_pll_vco = params->override_hbr3_pll_vco;
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boot_options.bits.sel_mux_phy_c_d_phy_f_g = (dmub->asic == DMUB_ASIC_DCN31B) ? 1 : 0;
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383