drm/amd/display: Add stereo mux and dig programming calls for dcn21

[Why]
The earlier patch "Hook up calls to do stereo mux and dig programming..."
doesn't include update for dcn21.

[How]
Align dcn21 gpio settings with updated stereo control interface.
Signed-off-by: Roman Li <Roman.Li@amd.com>
Acked-by: Aaron Liu <aaron.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/gpio/dcn21/hw_factory_dcn21.c

@@ -35,12 +35,10 @@
 
 #include "hw_factory_dcn21.h"
 
-
 #include "dcn/dcn_2_1_0_offset.h"
 #include "dcn/dcn_2_1_0_sh_mask.h"
 #include "renoir_ip_offset.h"
 
-
 #include "reg_helper.h"
 #include "../hpd_regs.h"
 /* begin *********************
@@ -136,6 +134,39 @@ static const struct ddc_sh_mask ddc_mask[] = {
 	DDC_MASK_SH_LIST_DCN2(_MASK, 6)
 };
 
+#include "../generic_regs.h"
+
+/* set field name */
+#define SF_GENERIC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+#define generic_regs(id) \
+{\
+	GENERIC_REG_LIST(id)\
+}
+
+static const struct generic_registers generic_regs[] = {
+	generic_regs(A),
+};
+
+static const struct generic_sh_mask generic_shift[] = {
+	GENERIC_MASK_SH_LIST(__SHIFT, A),
+};
+
+static const struct generic_sh_mask generic_mask[] = {
+	GENERIC_MASK_SH_LIST(_MASK, A),
+};
+
+static void define_generic_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_generic *generic = HW_GENERIC_FROM_BASE(pin);
+
+	generic->regs = &generic_regs[en];
+	generic->shifts = &generic_shift[en];
+	generic->masks = &generic_mask[en];
+	generic->base.regs = &generic_regs[en].gpio;
+}
+
 static void define_ddc_registers(
 		struct hw_gpio_pin *pin,
 		uint32_t en)
@@ -181,7 +212,8 @@ static const struct hw_factory_funcs funcs = {
 	.get_hpd_pin = dal_hw_hpd_get_pin,
 	.get_generic_pin = dal_hw_generic_get_pin,
 	.define_hpd_registers = define_hpd_registers,
-	.define_ddc_registers = define_ddc_registers
+	.define_ddc_registers = define_ddc_registers,
+	.define_generic_registers = define_generic_registers
 };
 /*
  * dal_hw_factory_dcn10_init

drivers/gpu/drm/amd/display/dc/gpio/dcn21/hw_translate_dcn21.c

@@ -58,7 +58,6 @@
 #define SF_HPD(reg_name, field_name, post_fix)\
 	.field_name = reg_name ## __ ## field_name ## post_fix
 
-
 /* macros to expend register list macro defined in HW object header file
  * end *********************/
 
@@ -71,7 +70,7 @@ static bool offset_to_id(
 {
 	switch (offset) {
 	/* GENERIC */
-	case REG(DC_GENERICA):
+	case REG(DC_GPIO_GENERIC_A):
 		*id = GPIO_ID_GENERIC;
 		switch (mask) {
 		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK: