[PATCH 1/2] soc: mediatek: pwrap: add pwrap driver for MT8186 SoC

Johnson Wang
2021-12-30T11:49:37Z

MT8186 are highly integrated SoC and use PMIC_MT6366 for
power management. This patch adds pwrap master driver to
access PMIC_MT6366.

Signed-off-by: Johnson Wang <johnson.wang@mediatek.com>
---
drivers/soc/mediatek/mtk-pmic-wrap.c | 86 ++++++++++++++++++++++++++--
1 file changed, 80 insertions(+), 6 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 952bc554f443..4af713274468 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -30,6 +30,7 @@
#define PWRAP_GET_WACS_REQ(x) (((x) >> 19) & 0x00000001)
#define PWRAP_STATE_SYNC_IDLE0 BIT(20)
#define PWRAP_STATE_INIT_DONE0 BIT(21)
+#define PWRAP_STATE_INIT_DONE0_V2 BIT(22)
#define PWRAP_STATE_INIT_DONE1 BIT(15)

/* macro for WACS FSM */
@@ -77,6 +78,8 @@
#define PWRAP_CAP_INT1_EN BIT(3)
#define PWRAP_CAP_WDT_SRC1 BIT(4)
#define PWRAP_CAP_ARB BIT(5)
+#define PWRAP_CAP_MONITOR_V2 BIT(6)
+#define PWRAP_CAP_ARB_V2 BIT(8)

/* defines for slave device wrapper registers */
enum dew_regs {
@@ -1063,6 +1066,55 @@ static int mt8516_regs[] = {
[PWRAP_MSB_FIRST] = 0x170,
};

+static int mt8186_regs[] = {
+ [PWRAP_MUX_SEL] = 0x0,
+ [PWRAP_WRAP_EN] = 0x4,
+ [PWRAP_DIO_EN] = 0x8,
+ [PWRAP_RDDMY] = 0x20,
+ [PWRAP_CSHEXT_WRITE] = 0x24,
+ [PWRAP_CSHEXT_READ] = 0x28,
+ [PWRAP_CSLEXT_WRITE] = 0x2C,
+ [PWRAP_CSLEXT_READ] = 0x30,
+ [PWRAP_EXT_CK_WRITE] = 0x34,
+ [PWRAP_STAUPD_CTRL] = 0x3C,
+ [PWRAP_STAUPD_GRPEN] = 0x40,
+ [PWRAP_EINT_STA0_ADR] = 0x44,
+ [PWRAP_EINT_STA1_ADR] = 0x48,
+ [PWRAP_INT_CLR] = 0xC8,
+ [PWRAP_INT_FLG] = 0xC4,
+ [PWRAP_MAN_EN] = 0x7C,
+ [PWRAP_MAN_CMD] = 0x80,
+ [PWRAP_WACS0_EN] = 0x8C,
+ [PWRAP_WACS1_EN] = 0x94,
+ [PWRAP_WACS2_EN] = 0x9C,
+ [PWRAP_INIT_DONE0] = 0x90,
+ [PWRAP_INIT_DONE1] = 0x98,
+ [PWRAP_INIT_DONE2] = 0xA0,
+ [PWRAP_INT_EN] = 0xBC,
+ [PWRAP_INT1_EN] = 0xCC,
+ [PWRAP_INT1_FLG] = 0xD4,
+ [PWRAP_INT1_CLR] = 0xD8,
+ [PWRAP_TIMER_EN] = 0xF0,
+ [PWRAP_WDT_UNIT] = 0xF8,
+ [PWRAP_WDT_SRC_EN] = 0xFC,
+ [PWRAP_WDT_SRC_EN_1] = 0x100,
+ [PWRAP_WDT_FLG] = 0x104,
+ [PWRAP_SPMINF_STA] = 0x1B4,
+ [PWRAP_DCM_EN] = 0x1EC,
+ [PWRAP_DCM_DBC_PRD] = 0x1F0,
+ [PWRAP_GPSINF_0_STA] = 0x204,
+ [PWRAP_GPSINF_1_STA] = 0x208,
+ [PWRAP_WACS0_CMD] = 0xC00,
+ [PWRAP_WACS0_RDATA] = 0xC04,
+ [PWRAP_WACS0_VLDCLR] = 0xC08,
+ [PWRAP_WACS1_CMD] = 0xC10,
+ [PWRAP_WACS1_RDATA] = 0xC14,
+ [PWRAP_WACS1_VLDCLR] = 0xC18,
+ [PWRAP_WACS2_CMD] = 0xC20,
+ [PWRAP_WACS2_RDATA] = 0xC24,
+ [PWRAP_WACS2_VLDCLR] = 0xC28,
+};
+
enum pmic_type {
PMIC_MT6323,
PMIC_MT6351,
@@ -1083,6 +1135,7 @@ enum pwrap_type {
PWRAP_MT8135,
PWRAP_MT8173,
PWRAP_MT8183,
+ PWRAP_MT8186,
PWRAP_MT8195,
PWRAP_MT8516,
};
@@ -1535,6 +1588,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
case PWRAP_MT6779:
case PWRAP_MT6797:
case PWRAP_MT8173:
+ case PWRAP_MT8186:
case PWRAP_MT8516:
pwrap_writel(wrp, 1, PWRAP_CIPHER_EN);
break;
@@ -2069,6 +2123,19 @@ static struct pmic_wrapper_type pwrap_mt8516 = {
.init_soc_specific = NULL,
};

+static struct pmic_wrapper_type pwrap_mt8186 = {
+ .regs = mt8186_regs,
+ .type = PWRAP_MT8186,
+ .arb_en_all = 0xfb27f,
+ .int_en_all = 0xfffffffe, /* disable WatchDog Timeout for bit 1 */
+ .int1_en_all = 0x000017ff, /* disable Matching interrupt for bit 13 */
+ .spi_w = PWRAP_MAN_CMD_SPI_WRITE,
+ .wdt_src = PWRAP_WDT_SRC_MASK_ALL,
+ .caps = PWRAP_CAP_INT1_EN | PWRAP_CAP_MONITOR_V2 | PWRAP_CAP_ARB_V2,
+ .init_reg_clock = pwrap_common_init_reg_clock,
+ .init_soc_specific = NULL,
+};
+
static const struct of_device_id of_pwrap_match_tbl[] = {
{
.compatible = "mediatek,mt2701-pwrap",
@@ -2097,6 +2164,9 @@ static const struct of_device_id of_pwrap_match_tbl[] = {
}, {
.compatible = "mediatek,mt8183-pwrap",
.data = &pwrap_mt8183,
+ }, {
+ .compatible = "mediatek,mt8186-pwrap",
+ .data = &pwrap_mt8186,
}, {
.compatible = "mediatek,mt8195-pwrap",
.data = &pwrap_mt8195,
@@ -2112,7 +2182,7 @@ MODULE_DEVICE_TABLE(of, of_pwrap_match_tbl);
static int pwrap_probe(struct platform_device *pdev)
{
int ret, irq;
- u32 mask_done;
+ u32 rdata;
struct pmic_wrapper *wrp;
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *of_slave_id = NULL;
@@ -2207,12 +2277,16 @@ static int pwrap_probe(struct platform_device *pdev)
}
}

- if (HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB))
- mask_done = PWRAP_STATE_INIT_DONE1;
+ if (!HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB))
+ rdata = pwrap_readl(wrp, PWRAP_WACS2_RDATA) &
+ PWRAP_STATE_INIT_DONE0;
+ else if (!HAS_CAP(wrp->master->caps, PWRAP_CAP_ARB_V2))
+ rdata = pwrap_readl(wrp, PWRAP_WACS2_RDATA) &
+ PWRAP_STATE_INIT_DONE0_V2;
else
- mask_done = PWRAP_STATE_INIT_DONE0;
-
- if (!(pwrap_readl(wrp, PWRAP_WACS2_RDATA) & mask_done)) {
+ rdata = pwrap_readl(wrp, PWRAP_WACS2_RDATA) &
+ PWRAP_STATE_INIT_DONE1;
+ if (!rdata) {
dev_dbg(wrp->dev, "initialization isn't finished\n");
ret = -ENODEV;
goto err_out2;
--
2.18.0