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path: root/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c
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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.c18
1 files changed, 18 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..408857d19c84 100644
--- a/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c
+++ b/drivers/gpu/drm/amd/display/dc/gpio/hw_ddc.c
@@ -23,6 +23,9 @@
*
*/
+#include <linux/delay.h>
+#include <linux/slab.h>
+
#include "dm_services.h"
#include "include/gpio_types.h"
@@ -144,6 +147,15 @@ 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 +163,12 @@ 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: