diff options
| author | Harry Wentland <harry.wentland@amd.com> | 2019-02-22 09:45:07 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-21 18:59:34 -0500 |
| commit | 2e35facf82bcdd9b9eb9129f4fb31127b79249ec (patch) | |
| tree | f79853d4499fe5db2e0ed750a7fa385e910db670 /drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c | |
| parent | 38e7128960a67a172c0fc525ff9bc8b738ebe127 (diff) | |
drm/amd/display: Add GPIO support for DCN2
Adding support to program GPIO HW block of DCN2
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c b/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c index 310f48965b27..49a99248e7f6 100644 --- a/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c +++ b/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c @@ -144,6 +144,15 @@ static enum gpio_result set_config( AUX_PAD1_MODE, 0); } +#if defined(CONFIG_DRM_AMD_DC_DCN2_0) + if (ddc->regs->dc_gpio_aux_ctrl_5 != 0) { + REG_UPDATE(dc_gpio_aux_ctrl_5, DDC_PAD_I2CMODE, 1); + } + //set DC_IO_aux_rxsel = 2'b01 + if (ddc->regs->phy_aux_cntl != 0) { + REG_UPDATE(phy_aux_cntl, AUX_PAD_RXSEL, 1); + } +#endif return GPIO_RESULT_OK; case GPIO_DDC_CONFIG_TYPE_MODE_AUX: /* set the AUX pad mode */ @@ -151,6 +160,12 @@ static enum gpio_result set_config( REG_SET(gpio.MASK_reg, regval, AUX_PAD1_MODE, 1); } +#if defined(CONFIG_DRM_AMD_DC_DCN2_0) + if (ddc->regs->dc_gpio_aux_ctrl_5 != 0) { + REG_UPDATE(dc_gpio_aux_ctrl_5, + DDC_PAD_I2CMODE, 0); + } +#endif return GPIO_RESULT_OK; case GPIO_DDC_CONFIG_TYPE_POLL_FOR_CONNECT: |