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pinctrl: rockchip: support mux route flags

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Create a new flag to indicate mux route is from topgrf or pmugrf.
 * INVALID: means do not need to set mux route
 * DEFAULT: means same regmap as pin iomux
 * TOPGRF: means mux route setting in topgrf
 * PMUGRF: means mux route setting in pmugrf

Change-Id: Iff57f3649d09751ff846560bd8a1599f6ef7ef04
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
This commit is contained in:
Jianqun Xu
2020-04-02 09:04:29 +08:00
committed by Tao Huang
parent c7377b7be5
commit 5e2bcd8c9f
1 changed files with 59 additions and 10 deletions
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69
drivers/pinctrl/pinctrl-rockchip.c
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@@ -116,6 +116,21 @@ enum rockchip_pin_pull_type {
PULL_TYPE_MAX
};
/**
* enum mux route register type, should be invalid/default/topgrf/pmugrf.
* INVALID: means do not need to set mux route
* DEFAULT: means same regmap as pin iomux
* TOPGRF: means mux route setting in topgrf
* PMUGRF: means mux route setting in pmugrf
*/
enum rockchip_pin_route_type {
ROUTE_TYPE_DEFAULT = 0,
ROUTE_TYPE_TOPGRF = 1,
ROUTE_TYPE_PMUGRF = 2,
ROUTE_TYPE_INVALID = -1,
};
/**
* @drv_type: drive strength variant using rockchip_perpin_drv_type
* @offset: if initialized to -1 it will be autocalculated, by specifying
@@ -296,6 +311,25 @@ struct rockchip_pin_bank {
.pull_type[3] = pull3, \
}
#define PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, FLAG) \
{ \
.bank_num = ID, \
.pin = PIN, \
.func = FUNC, \
.route_offset = REG, \
.route_val = VAL, \
.route_type = FLAG, \
}
#define MR_DEFAULT(ID, PIN, FUNC, REG, VAL) \
PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, ROUTE_TYPE_DEFAULT)
#define MR_TOPGRF(ID, PIN, FUNC, REG, VAL) \
PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, ROUTE_TYPE_TOPGRF)
#define MR_PMUGRF(ID, PIN, FUNC, REG, VAL) \
PIN_BANK_MUX_ROUTE_FLAGS(ID, PIN, FUNC, REG, VAL, ROUTE_TYPE_PMUGRF)
/**
* struct rockchip_mux_recalced_data: represent a pin iomux data.
* @num: bank number.
@@ -317,6 +351,7 @@ struct rockchip_mux_recalced_data {
* @bank_num: bank number.
* @pin: index at register or used to calc index.
* @func: the min pin.
* @route_type: the register type.
* @route_offset: the max pin.
* @route_val: the register offset.
*/
@@ -324,6 +359,7 @@ struct rockchip_mux_route_data {
u8 bank_num;
u8 pin;
u8 func;
enum rockchip_pin_route_type route_type : 8;
u32 route_offset;
u32 route_val;
};
@@ -1658,8 +1694,9 @@ static struct rockchip_mux_route_data rk3399_mux_route_data[] = {
},
};
static bool rockchip_get_mux_route(struct rockchip_pin_bank *bank, int pin,
int mux, u32 *reg, u32 *value)
static enum rockchip_pin_route_type
rockchip_get_mux_route(struct rockchip_pin_bank *bank, int pin,
int mux, u32 *reg, u32 *value)
{
struct rockchip_pinctrl *info = bank->drvdata;
struct rockchip_pin_ctrl *ctrl = info->ctrl;
@@ -1674,12 +1711,12 @@ static bool rockchip_get_mux_route(struct rockchip_pin_bank *bank, int pin,
}
if (i >= ctrl->niomux_routes)
return false;
return ROUTE_TYPE_INVALID;
*reg = data->route_offset;
*value = data->route_val;
return true;
return data->route_type;
}
static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
@@ -1778,7 +1815,7 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
struct regmap *regmap;
int reg, ret, mask, mux_type;
u8 bit;
u32 data, rmask, route_reg, route_val;
u32 data, rmask;
ret = rockchip_verify_mux(bank, pin, mux);
if (ret < 0)
@@ -1818,11 +1855,23 @@ static int rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
return -EINVAL;
if (bank->route_mask & BIT(pin)) {
if (rockchip_get_mux_route(bank, pin, mux, &route_reg,
&route_val)) {
ret = regmap_write(regmap, route_reg, route_val);
if (ret)
return ret;
u32 route_reg = 0, route_val = 0;
ret = rockchip_get_mux_route(bank, pin, mux,
&route_reg, &route_val);
switch (ret) {
case ROUTE_TYPE_DEFAULT:
regmap_write(regmap, route_reg, route_val);
break;
case ROUTE_TYPE_TOPGRF:
regmap_write(info->regmap_base, route_reg, route_val);
break;
case ROUTE_TYPE_PMUGRF:
regmap_write(info->regmap_pmu, route_reg, route_val);
break;
case ROUTE_TYPE_INVALID: /* Fall through */
default:
break;
}
}