From: Martin Leung martin.leung@amd.com
[ Upstream commit a1d2afc5dde29a943d32bf92eb0408c9f19541fc ]
why: oem-related ddc read/write fails without these regs
how: copy from hw_factory_dcn20.c
Signed-off-by: Martin Leung martin.leung@amd.com Acked-by: Aurabindo Pillai aurabindo.pillai@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- .../drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c b/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c index 7e7fb65721073..9d3665f88c523 100644 --- a/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c +++ b/drivers/gpu/drm/amd/display/dc/gpio/dcn30/hw_factory_dcn30.c @@ -117,6 +117,12 @@ static const struct ddc_registers ddc_data_regs_dcn[] = { ddc_data_regs_dcn2(4), ddc_data_regs_dcn2(5), ddc_data_regs_dcn2(6), + { + DDC_GPIO_VGA_REG_LIST(DATA), + .ddc_setup = 0, + .phy_aux_cntl = 0, + .dc_gpio_aux_ctrl_5 = 0 + } };
static const struct ddc_registers ddc_clk_regs_dcn[] = { @@ -126,6 +132,12 @@ static const struct ddc_registers ddc_clk_regs_dcn[] = { ddc_clk_regs_dcn2(4), ddc_clk_regs_dcn2(5), ddc_clk_regs_dcn2(6), + { + DDC_GPIO_VGA_REG_LIST(CLK), + .ddc_setup = 0, + .phy_aux_cntl = 0, + .dc_gpio_aux_ctrl_5 = 0 + } };
static const struct ddc_sh_mask ddc_shift[] = {