From: Yassine Oudjana <y.oudjana@protonmail.com>
Add register definitions and configuration for the MT6735 SoC and the
MT6328 PMIC which are commonly paired and communicate through the PMIC
wrapper.
Note that the PMIC wrapper on MT6735M has a slightly different register
map and is therefore NOT compatible with MT6735.
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
---
drivers/soc/mediatek/mtk-pmic-wrap.c | 251 ++++++++++++++++++++++++++-
1 file changed, 248 insertions(+), 3 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
index 9fdc0ef792026..b9e8dd2a5999d 100644
--- a/drivers/soc/mediatek/mtk-pmic-wrap.c
+++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
@@ -3,6 +3,7 @@
* Copyright (c) 2014 MediaTek Inc.
* Author: Flora Fu, MediaTek
*/
+
#include <linux/clk.h>
#include <linux/interrupt.h>
#include <linux/io.h>
@@ -100,7 +101,7 @@ enum dew_regs {
PWRAP_DEW_CIPHER_MODE,
PWRAP_DEW_CIPHER_SWRST,
- /* MT6323 only regs */
+ /* MT6323 and MT6328 only regs */
PWRAP_DEW_CIPHER_EN,
PWRAP_DEW_RDDMY_NO,
@@ -121,8 +122,10 @@ enum dew_regs {
PWRAP_RG_SPI_CON13,
PWRAP_SPISLV_KEY,
- /* MT6359 only regs */
+ /* MT6359 and MT6328 only regs */
PWRAP_DEW_CRC_SWRST,
+
+ /* MT6359 only regs */
PWRAP_DEW_RG_EN_RECORD,
PWRAP_DEW_RECORD_CMD0,
PWRAP_DEW_RECORD_CMD1,
@@ -171,6 +174,23 @@ static const u32 mt6323_regs[] = {
[PWRAP_DEW_RDDMY_NO] = 0x01a4,
};
+static const u32 mt6328_regs[] = {
+ [PWRAP_DEW_DIO_EN] = 0x02d4,
+ [PWRAP_DEW_READ_TEST] = 0x02d6,
+ [PWRAP_DEW_WRITE_TEST] = 0x02d8,
+ [PWRAP_DEW_CRC_SWRST] = 0x02da,
+ [PWRAP_DEW_CRC_EN] = 0x02dc,
+ [PWRAP_DEW_CRC_VAL] = 0x02de,
+ [PWRAP_DEW_MON_GRP_SEL] = 0x02e0,
+ [PWRAP_DEW_CIPHER_KEY_SEL] = 0x02e2,
+ [PWRAP_DEW_CIPHER_IV_SEL] = 0x02e4,
+ [PWRAP_DEW_CIPHER_EN] = 0x02e6,
+ [PWRAP_DEW_CIPHER_RDY] = 0x02e8,
+ [PWRAP_DEW_CIPHER_MODE] = 0x02ea,
+ [PWRAP_DEW_CIPHER_SWRST] = 0x02ec,
+ [PWRAP_DEW_RDDMY_NO] = 0x02ee,
+};
+
static const u32 mt6331_regs[] = {
[PWRAP_DEW_DIO_EN] = 0x018c,
[PWRAP_DEW_READ_TEST] = 0x018e,
@@ -394,7 +414,7 @@ enum pwrap_regs {
PWRAP_ADC_RDATA_ADDR1,
PWRAP_ADC_RDATA_ADDR2,
- /* MT7622 only regs */
+ /* MT7622 and MT6735 only regs */
PWRAP_STA,
PWRAP_CLR,
PWRAP_DVFS_ADR8,
@@ -417,6 +437,8 @@ enum pwrap_regs {
PWRAP_ADC_RDATA_ADDR,
PWRAP_GPS_STA,
PWRAP_SW_RST,
+
+ /* MT7622 only regs */
PWRAP_DVFS_STEP_CTRL0,
PWRAP_DVFS_STEP_CTRL1,
PWRAP_DVFS_STEP_CTRL2,
@@ -481,6 +503,50 @@ enum pwrap_regs {
/* MT8516 only regs */
PWRAP_OP_TYPE,
PWRAP_MSB_FIRST,
+
+ /* MT6735 only regs */
+ PWRAP_WACS3_EN,
+ PWRAP_INIT_DONE3,
+ PWRAP_WACS3_CMD,
+ PWRAP_WACS3_RDATA,
+ PWRAP_WACS3_VLDCLR,
+ PWRAP_MD_ADC_RDATA_ADDR_LATEST,
+ PWRAP_MD_ADC_RDATA_ADDR_WP,
+ PWRAP_MD_ADC_RDATA_ADDR_R0,
+ PWRAP_MD_ADC_RDATA_ADDR_R1,
+ PWRAP_MD_ADC_RDATA_ADDR_R2,
+ PWRAP_MD_ADC_RDATA_ADDR_R3,
+ PWRAP_MD_ADC_RDATA_ADDR_R4,
+ PWRAP_MD_ADC_RDATA_ADDR_R5,
+ PWRAP_MD_ADC_RDATA_ADDR_R6,
+ PWRAP_MD_ADC_RDATA_ADDR_R7,
+ PWRAP_MD_ADC_RDATA_ADDR_R8,
+ PWRAP_MD_ADC_RDATA_ADDR_R9,
+ PWRAP_MD_ADC_RDATA_ADDR_R10,
+ PWRAP_MD_ADC_RDATA_ADDR_R11,
+ PWRAP_MD_ADC_RDATA_ADDR_R12,
+ PWRAP_MD_ADC_RDATA_ADDR_R13,
+ PWRAP_MD_ADC_RDATA_ADDR_R14,
+ PWRAP_MD_ADC_RDATA_ADDR_R15,
+ PWRAP_MD_ADC_RDATA_ADDR_R16,
+ PWRAP_MD_ADC_RDATA_ADDR_R17,
+ PWRAP_MD_ADC_RDATA_ADDR_R18,
+ PWRAP_MD_ADC_RDATA_ADDR_R19,
+ PWRAP_MD_ADC_RDATA_ADDR_R20,
+ PWRAP_MD_ADC_RDATA_ADDR_R21,
+ PWRAP_MD_ADC_RDATA_ADDR_R22,
+ PWRAP_MD_ADC_RDATA_ADDR_R23,
+ PWRAP_MD_ADC_RDATA_ADDR_R24,
+ PWRAP_MD_ADC_RDATA_ADDR_R25,
+ PWRAP_MD_ADC_RDATA_ADDR_R26,
+ PWRAP_MD_ADC_RDATA_ADDR_R27,
+ PWRAP_MD_ADC_RDATA_ADDR_R28,
+ PWRAP_MD_ADC_RDATA_ADDR_R29,
+ PWRAP_MD_ADC_RDATA_ADDR_R30,
+ PWRAP_MD_ADC_RDATA_ADDR_R31,
+ PWRAP_MD_ADC_STA0,
+ PWRAP_MD_ADC_STA1,
+ PWRAP_MD_ADC_STA2,
};
static const int mt2701_regs[] = {
@@ -569,6 +635,156 @@ static const int mt2701_regs[] = {
[PWRAP_ADC_RDATA_ADDR2] = 0x154,
};
+static const int mt6735_regs[] = {
+ [PWRAP_MUX_SEL] = 0x0,
+ [PWRAP_WRAP_EN] = 0x4,
+ [PWRAP_DIO_EN] = 0x8,
+ [PWRAP_SIDLY] = 0xc,
+ [PWRAP_RDDMY] = 0x10,
+ [PWRAP_SI_CK_CON] = 0x14,
+ [PWRAP_CSHEXT_WRITE] = 0x18,
+ [PWRAP_CSHEXT_READ] = 0x1c,
+ [PWRAP_CSLEXT_START] = 0x20,
+ [PWRAP_CSLEXT_END] = 0x24,
+ [PWRAP_STAUPD_PRD] = 0x28,
+ [PWRAP_STAUPD_GRPEN] = 0x2c,
+ [PWRAP_EINT_STA0_ADR] = 0x30,
+ [PWRAP_EINT_STA1_ADR] = 0x34,
+ [PWRAP_STA] = 0x38,
+ [PWRAP_CLR] = 0x3c,
+ [PWRAP_STAUPD_MAN_TRIG] = 0x40,
+ [PWRAP_STAUPD_STA] = 0x44,
+ [PWRAP_WRAP_STA] = 0x48,
+ [PWRAP_HARB_INIT] = 0x4c,
+ [PWRAP_HARB_HPRIO] = 0x50,
+ [PWRAP_HIPRIO_ARB_EN] = 0x54,
+ [PWRAP_HARB_STA0] = 0x58,
+ [PWRAP_HARB_STA1] = 0x5c,
+ [PWRAP_MAN_EN] = 0x60,
+ [PWRAP_MAN_CMD] = 0x64,
+ [PWRAP_MAN_RDATA] = 0x68,
+ [PWRAP_MAN_VLDCLR] = 0x6c,
+ [PWRAP_WACS0_EN] = 0x70,
+ [PWRAP_INIT_DONE0] = 0x74,
+ [PWRAP_WACS0_CMD] = 0x78,
+ [PWRAP_WACS0_RDATA] = 0x7c,
+ [PWRAP_WACS0_VLDCLR] = 0x80,
+ [PWRAP_WACS1_EN] = 0x84,
+ [PWRAP_INIT_DONE1] = 0x88,
+ [PWRAP_WACS1_CMD] = 0x8c,
+ [PWRAP_WACS1_RDATA] = 0x90,
+ [PWRAP_WACS1_VLDCLR] = 0x94,
+ [PWRAP_WACS2_EN] = 0x98,
+ [PWRAP_INIT_DONE2] = 0x9c,
+ [PWRAP_WACS2_CMD] = 0xa0,
+ [PWRAP_WACS2_RDATA] = 0xa4,
+ [PWRAP_WACS2_VLDCLR] = 0xa8,
+ [PWRAP_WACS3_EN] = 0xac,
+ [PWRAP_INIT_DONE3] = 0xb0,
+ [PWRAP_WACS3_CMD] = 0xb4,
+ [PWRAP_WACS3_RDATA] = 0xb8,
+ [PWRAP_WACS3_VLDCLR] = 0xbc,
+ [PWRAP_INT_EN] = 0xc0,
+ [PWRAP_INT_FLG_RAW] = 0xc4,
+ [PWRAP_INT_FLG] = 0xc8,
+ [PWRAP_INT_CLR] = 0xcc,
+ [PWRAP_SIG_ADR] = 0xd0,
+ [PWRAP_SIG_MODE] = 0xd4,
+ [PWRAP_SIG_VALUE] = 0xd8,
+ [PWRAP_SIG_ERRVAL] = 0xdc,
+ [PWRAP_CRC_EN] = 0xe0,
+ [PWRAP_TIMER_EN] = 0xe4,
+ [PWRAP_TIMER_STA] = 0xe8,
+ [PWRAP_WDT_UNIT] = 0xec,
+ [PWRAP_WDT_SRC_EN] = 0xf0,
+ [PWRAP_WDT_FLG] = 0xf4,
+ [PWRAP_DEBUG_INT_SEL] = 0xf8,
+ [PWRAP_DVFS_ADR0] = 0xfc,
+ [PWRAP_DVFS_WDATA0] = 0x100,
+ [PWRAP_DVFS_ADR1] = 0x104,
+ [PWRAP_DVFS_WDATA1] = 0x108,
+ [PWRAP_DVFS_ADR2] = 0x10c,
+ [PWRAP_DVFS_WDATA2] = 0x110,
+ [PWRAP_DVFS_ADR3] = 0x114,
+ [PWRAP_DVFS_WDATA3] = 0x118,
+ [PWRAP_DVFS_ADR4] = 0x11c,
+ [PWRAP_DVFS_WDATA4] = 0x120,
+ [PWRAP_DVFS_ADR5] = 0x124,
+ [PWRAP_DVFS_WDATA5] = 0x128,
+ [PWRAP_DVFS_ADR6] = 0x12c,
+ [PWRAP_DVFS_WDATA6] = 0x130,
+ [PWRAP_DVFS_ADR7] = 0x134,
+ [PWRAP_DVFS_WDATA7] = 0x138,
+ [PWRAP_DVFS_ADR8] = 0x13c,
+ [PWRAP_DVFS_WDATA8] = 0x140,
+ [PWRAP_DVFS_ADR9] = 0x144,
+ [PWRAP_DVFS_WDATA9] = 0x148,
+ [PWRAP_DVFS_ADR10] = 0x14c,
+ [PWRAP_DVFS_WDATA10] = 0x150,
+ [PWRAP_DVFS_ADR11] = 0x154,
+ [PWRAP_DVFS_WDATA11] = 0x158,
+ [PWRAP_DVFS_ADR12] = 0x15c,
+ [PWRAP_DVFS_WDATA12] = 0x160,
+ [PWRAP_DVFS_ADR13] = 0x164,
+ [PWRAP_DVFS_WDATA13] = 0x168,
+ [PWRAP_DVFS_ADR14] = 0x16c,
+ [PWRAP_DVFS_WDATA14] = 0x170,
+ [PWRAP_DVFS_ADR15] = 0x174,
+ [PWRAP_DVFS_WDATA15] = 0x178,
+ [PWRAP_SPMINF_STA] = 0x17c,
+ [PWRAP_CIPHER_KEY_SEL] = 0x180,
+ [PWRAP_CIPHER_IV_SEL] = 0x184,
+ [PWRAP_CIPHER_EN] = 0x188,
+ [PWRAP_CIPHER_RDY] = 0x18c,
+ [PWRAP_CIPHER_MODE] = 0x190,
+ [PWRAP_CIPHER_SWRST] = 0x194,
+ [PWRAP_DCM_EN] = 0x198,
+ [PWRAP_DCM_DBC_PRD] = 0x19c,
+ [PWRAP_EXT_CK] = 0x1a0,
+ [PWRAP_ADC_CMD_ADDR] = 0x1a4,
+ [PWRAP_PWRAP_ADC_CMD] = 0x1a8,
+ [PWRAP_ADC_RDATA_ADDR] = 0x1ac,
+ [PWRAP_GPS_STA] = 0x1b0,
+ [PWRAP_SW_RST] = 0x1b4,
+ [PWRAP_MD_ADC_RDATA_ADDR_LATEST] = 0x1b8,
+ [PWRAP_MD_ADC_RDATA_ADDR_WP] = 0x1bc,
+ [PWRAP_MD_ADC_RDATA_ADDR_R0] = 0x1c0,
+ [PWRAP_MD_ADC_RDATA_ADDR_R1] = 0x1c4,
+ [PWRAP_MD_ADC_RDATA_ADDR_R2] = 0x1c8,
+ [PWRAP_MD_ADC_RDATA_ADDR_R3] = 0x1cc,
+ [PWRAP_MD_ADC_RDATA_ADDR_R4] = 0x1d0,
+ [PWRAP_MD_ADC_RDATA_ADDR_R5] = 0x1d4,
+ [PWRAP_MD_ADC_RDATA_ADDR_R6] = 0x1d8,
+ [PWRAP_MD_ADC_RDATA_ADDR_R7] = 0x1dc,
+ [PWRAP_MD_ADC_RDATA_ADDR_R8] = 0x1e0,
+ [PWRAP_MD_ADC_RDATA_ADDR_R9] = 0x1e4,
+ [PWRAP_MD_ADC_RDATA_ADDR_R10] = 0x1e8,
+ [PWRAP_MD_ADC_RDATA_ADDR_R11] = 0x1ec,
+ [PWRAP_MD_ADC_RDATA_ADDR_R12] = 0x1f0,
+ [PWRAP_MD_ADC_RDATA_ADDR_R13] = 0x1f4,
+ [PWRAP_MD_ADC_RDATA_ADDR_R14] = 0x1f8,
+ [PWRAP_MD_ADC_RDATA_ADDR_R15] = 0x1fc,
+ [PWRAP_MD_ADC_RDATA_ADDR_R16] = 0x200,
+ [PWRAP_MD_ADC_RDATA_ADDR_R17] = 0x204,
+ [PWRAP_MD_ADC_RDATA_ADDR_R18] = 0x208,
+ [PWRAP_MD_ADC_RDATA_ADDR_R19] = 0x20c,
+ [PWRAP_MD_ADC_RDATA_ADDR_R20] = 0x210,
+ [PWRAP_MD_ADC_RDATA_ADDR_R21] = 0x214,
+ [PWRAP_MD_ADC_RDATA_ADDR_R22] = 0x218,
+ [PWRAP_MD_ADC_RDATA_ADDR_R23] = 0x21c,
+ [PWRAP_MD_ADC_RDATA_ADDR_R24] = 0x220,
+ [PWRAP_MD_ADC_RDATA_ADDR_R25] = 0x224,
+ [PWRAP_MD_ADC_RDATA_ADDR_R26] = 0x228,
+ [PWRAP_MD_ADC_RDATA_ADDR_R27] = 0x22c,
+ [PWRAP_MD_ADC_RDATA_ADDR_R28] = 0x230,
+ [PWRAP_MD_ADC_RDATA_ADDR_R29] = 0x234,
+ [PWRAP_MD_ADC_RDATA_ADDR_R30] = 0x238,
+ [PWRAP_MD_ADC_RDATA_ADDR_R31] = 0x23c,
+ [PWRAP_MD_ADC_STA0] = 0x240,
+ [PWRAP_MD_ADC_STA1] = 0x244,
+ [PWRAP_MD_ADC_STA2] = 0x248,
+};
+
static const int mt6765_regs[] = {
[PWRAP_MUX_SEL] = 0x0,
[PWRAP_WRAP_EN] = 0x4,
@@ -1302,6 +1518,7 @@ static const int mt8186_regs[] = {
enum pmic_type {
PMIC_MT6323,
+ PMIC_MT6328,
PMIC_MT6331,
PMIC_MT6332,
PMIC_MT6351,
@@ -1314,6 +1531,7 @@ enum pmic_type {
enum pwrap_type {
PWRAP_MT2701,
+ PWRAP_MT6735,
PWRAP_MT6765,
PWRAP_MT6779,
PWRAP_MT6795,
@@ -1733,6 +1951,10 @@ static void pwrap_init_chip_select_ext(struct pmic_wrapper *wrp, u8 hext_write,
static int pwrap_common_init_reg_clock(struct pmic_wrapper *wrp)
{
switch (wrp->master->type) {
+ case PWRAP_MT6735:
+ pwrap_write(wrp, wrp->slave->dew_regs[PWRAP_DEW_RDDMY_NO], 0x8);
+ pwrap_init_chip_select_ext(wrp, 0, 6, 0, 0);
+ break;
case PWRAP_MT6795:
if (wrp->slave->type == PMIC_MT6331) {
const u32 *dew_regs = wrp->slave->dew_regs;
@@ -1839,6 +2061,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
pwrap_writel(wrp, 1, PWRAP_CIPHER_START);
break;
case PWRAP_MT2701:
+ case PWRAP_MT6735:
case PWRAP_MT6765:
case PWRAP_MT6779:
case PWRAP_MT6795:
@@ -2194,6 +2417,14 @@ static const struct pwrap_slv_type pmic_mt6323 = {
PWRAP_SLV_CAP_SECURITY,
};
+static const struct pwrap_slv_type pmic_mt6328 = {
+ .dew_regs = mt6328_regs,
+ .type = PMIC_MT6328,
+ .regops = &pwrap_regops16,
+ .caps = PWRAP_SLV_CAP_SPI | PWRAP_SLV_CAP_DUALIO |
+ PWRAP_SLV_CAP_SECURITY,
+};
+
static const struct pwrap_slv_type pmic_mt6331 = {
.dew_regs = mt6331_regs,
.type = PMIC_MT6331,
@@ -2249,6 +2480,7 @@ static const struct pwrap_slv_type pmic_mt6397 = {
static const struct of_device_id of_slave_match_tbl[] = {
{ .compatible = "mediatek,mt6323", .data = &pmic_mt6323 },
+ { .compatible = "mediatek,mt6328", .data = &pmic_mt6328 },
{ .compatible = "mediatek,mt6331", .data = &pmic_mt6331 },
{ .compatible = "mediatek,mt6351", .data = &pmic_mt6351 },
{ .compatible = "mediatek,mt6357", .data = &pmic_mt6357 },
@@ -2277,6 +2509,18 @@ static const struct pmic_wrapper_type pwrap_mt2701 = {
.init_soc_specific = pwrap_mt2701_init_soc_specific,
};
+static const struct pmic_wrapper_type pwrap_mt6735 = {
+ .regs = mt6735_regs,
+ .type = PWRAP_MT6735,
+ .arb_en_all = GENMASK(9, 0),
+ .int_en_all = GENMASK(31, 0),
+ .spi_w = PWRAP_MAN_CMD_SPI_WRITE,
+ .wdt_src = PWRAP_WDT_SRC_MASK_ALL,
+ .caps = PWRAP_CAP_RESET | PWRAP_CAP_DCM,
+ .init_reg_clock = pwrap_common_init_reg_clock,
+ .init_soc_specific = NULL,
+};
+
static const struct pmic_wrapper_type pwrap_mt6765 = {
.regs = mt6765_regs,
.type = PWRAP_MT6765,
@@ -2446,6 +2690,7 @@ static const struct pmic_wrapper_type pwrap_mt8186 = {
static const struct of_device_id of_pwrap_match_tbl[] = {
{ .compatible = "mediatek,mt2701-pwrap", .data = &pwrap_mt2701 },
+ { .compatible = "mediatek,mt6735-pwrap", .data = &pwrap_mt6735 },
{ .compatible = "mediatek,mt6765-pwrap", .data = &pwrap_mt6765 },
{ .compatible = "mediatek,mt6779-pwrap", .data = &pwrap_mt6779 },
{ .compatible = "mediatek,mt6795-pwrap", .data = &pwrap_mt6795 },
--
2.47.0Il 18/10/24 10:10, Yassine Oudjana ha scritto:
> From: Yassine Oudjana <y.oudjana@protonmail.com>
>
> Add register definitions and configuration for the MT6735 SoC and the
> MT6328 PMIC which are commonly paired and communicate through the PMIC
> wrapper.
>
> Note that the PMIC wrapper on MT6735M has a slightly different register
> map and is therefore NOT compatible with MT6735.
>
> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
> ---
> drivers/soc/mediatek/mtk-pmic-wrap.c | 251 ++++++++++++++++++++++++++-
> 1 file changed, 248 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
> index 9fdc0ef792026..b9e8dd2a5999d 100644
> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
> @@ -3,6 +3,7 @@
> * Copyright (c) 2014 MediaTek Inc.
> * Author: Flora Fu, MediaTek
> */
> +
> #include <linux/clk.h>
> #include <linux/interrupt.h>
> #include <linux/io.h>
> @@ -100,7 +101,7 @@ enum dew_regs {
> PWRAP_DEW_CIPHER_MODE,
> PWRAP_DEW_CIPHER_SWRST,
>
> - /* MT6323 only regs */
> + /* MT6323 and MT6328 only regs */
> PWRAP_DEW_CIPHER_EN,
> PWRAP_DEW_RDDMY_NO,
>
> @@ -121,8 +122,10 @@ enum dew_regs {
> PWRAP_RG_SPI_CON13,
> PWRAP_SPISLV_KEY,
>
> - /* MT6359 only regs */
> + /* MT6359 and MT6328 only regs */
> PWRAP_DEW_CRC_SWRST,
> +
> + /* MT6359 only regs */
> PWRAP_DEW_RG_EN_RECORD,
> PWRAP_DEW_RECORD_CMD0,
> PWRAP_DEW_RECORD_CMD1,
> @@ -171,6 +174,23 @@ static const u32 mt6323_regs[] = {
> [PWRAP_DEW_RDDMY_NO] = 0x01a4,
> };
>
> +static const u32 mt6328_regs[] = {
> + [PWRAP_DEW_DIO_EN] = 0x02d4,
> + [PWRAP_DEW_READ_TEST] = 0x02d6,
> + [PWRAP_DEW_WRITE_TEST] = 0x02d8,
> + [PWRAP_DEW_CRC_SWRST] = 0x02da,
> + [PWRAP_DEW_CRC_EN] = 0x02dc,
> + [PWRAP_DEW_CRC_VAL] = 0x02de,
> + [PWRAP_DEW_MON_GRP_SEL] = 0x02e0,
> + [PWRAP_DEW_CIPHER_KEY_SEL] = 0x02e2,
> + [PWRAP_DEW_CIPHER_IV_SEL] = 0x02e4,
> + [PWRAP_DEW_CIPHER_EN] = 0x02e6,
> + [PWRAP_DEW_CIPHER_RDY] = 0x02e8,
> + [PWRAP_DEW_CIPHER_MODE] = 0x02ea,
> + [PWRAP_DEW_CIPHER_SWRST] = 0x02ec,
> + [PWRAP_DEW_RDDMY_NO] = 0x02ee,
> +};
> +
> static const u32 mt6331_regs[] = {
> [PWRAP_DEW_DIO_EN] = 0x018c,
> [PWRAP_DEW_READ_TEST] = 0x018e,
> @@ -394,7 +414,7 @@ enum pwrap_regs {
> PWRAP_ADC_RDATA_ADDR1,
> PWRAP_ADC_RDATA_ADDR2,
>
> - /* MT7622 only regs */
> + /* MT7622 and MT6735 only regs */
> PWRAP_STA,
> PWRAP_CLR,
> PWRAP_DVFS_ADR8,
> @@ -417,6 +437,8 @@ enum pwrap_regs {
> PWRAP_ADC_RDATA_ADDR,
> PWRAP_GPS_STA,
> PWRAP_SW_RST,
> +
> + /* MT7622 only regs */
> PWRAP_DVFS_STEP_CTRL0,
> PWRAP_DVFS_STEP_CTRL1,
> PWRAP_DVFS_STEP_CTRL2,
> @@ -481,6 +503,50 @@ enum pwrap_regs {
> /* MT8516 only regs */
> PWRAP_OP_TYPE,
> PWRAP_MSB_FIRST,
> +
> + /* MT6735 only regs */
> + PWRAP_WACS3_EN,
> + PWRAP_INIT_DONE3,
> + PWRAP_WACS3_CMD,
> + PWRAP_WACS3_RDATA,
> + PWRAP_WACS3_VLDCLR,
Are you sure that you need the PWRAP_MD_ADC_xxxx registers in here?
Since MD is relatively big on its own, I'm not sure how to proceed here.. it may
make sense to split the MD part to a different array, or it may not... I do need
to understand what's going on.
Can you please point me at some reference code to look at, so that I can understand
the situation a bit?
Besides, I'm noticing that the "MD_ADC_RDATA_ADDR_R(x)" are sequential registers
and that's on more than just MT6735: instead of having 32 more entries, it might
make more sense to set only the first and declare the number (or size) of regs...
Something like:
enum pwrap_regs {
.....
PWRAP_MD_ADC_RDATA_ADDR_LATEST,
PWRAP_MD_ADC_RDATA_ADDR_WP,
PWRAP_MD_ADC_RDATA_ADDR_R0,
PWRAP_MD_ADC_STA0,
PWRAP_MD_ADC_STA1,
PWRAP_MD_ADC_STA2
};
static const struct pmic_wrapper_type pwrap_mt6735 = {
.regs = mt6735_regs,
.num_md_addr = 32,
[other stuff]
};
...but again, please, if you can point me at an implementation that actually
uses the R(x) registers, that'd be better ... so that we can choose the best
option to add those in there.
Everything else is great: good job :-)
Cheers,
Angelo
On Mon, Oct 21 2024 at 15:25:00 +02:00:00, AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
> Il 18/10/24 10:10, Yassine Oudjana ha scritto:
>> From: Yassine Oudjana <y.oudjana@protonmail.com>
>>
>> Add register definitions and configuration for the MT6735 SoC and the
>> MT6328 PMIC which are commonly paired and communicate through the
>> PMIC
>> wrapper.
>>
>> Note that the PMIC wrapper on MT6735M has a slightly different
>> register
>> map and is therefore NOT compatible with MT6735.
>>
>> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
>> ---
>> drivers/soc/mediatek/mtk-pmic-wrap.c | 251
>> ++++++++++++++++++++++++++-
>> 1 file changed, 248 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c
>> b/drivers/soc/mediatek/mtk-pmic-wrap.c
>> index 9fdc0ef792026..b9e8dd2a5999d 100644
>> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
>> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
>> @@ -3,6 +3,7 @@
>> * Copyright (c) 2014 MediaTek Inc.
>> * Author: Flora Fu, MediaTek
>> */
>> +
>> #include <linux/clk.h>
>> #include <linux/interrupt.h>
>> #include <linux/io.h>
>> @@ -100,7 +101,7 @@ enum dew_regs {
>> PWRAP_DEW_CIPHER_MODE,
>> PWRAP_DEW_CIPHER_SWRST,
>> - /* MT6323 only regs */
>> + /* MT6323 and MT6328 only regs */
>> PWRAP_DEW_CIPHER_EN,
>> PWRAP_DEW_RDDMY_NO,
>> @@ -121,8 +122,10 @@ enum dew_regs {
>> PWRAP_RG_SPI_CON13,
>> PWRAP_SPISLV_KEY,
>> - /* MT6359 only regs */
>> + /* MT6359 and MT6328 only regs */
>> PWRAP_DEW_CRC_SWRST,
>> +
>> + /* MT6359 only regs */
>> PWRAP_DEW_RG_EN_RECORD,
>> PWRAP_DEW_RECORD_CMD0,
>> PWRAP_DEW_RECORD_CMD1,
>> @@ -171,6 +174,23 @@ static const u32 mt6323_regs[] = {
>> [PWRAP_DEW_RDDMY_NO] = 0x01a4,
>> };
>> +static const u32 mt6328_regs[] = {
>> + [PWRAP_DEW_DIO_EN] = 0x02d4,
>> + [PWRAP_DEW_READ_TEST] = 0x02d6,
>> + [PWRAP_DEW_WRITE_TEST] = 0x02d8,
>> + [PWRAP_DEW_CRC_SWRST] = 0x02da,
>> + [PWRAP_DEW_CRC_EN] = 0x02dc,
>> + [PWRAP_DEW_CRC_VAL] = 0x02de,
>> + [PWRAP_DEW_MON_GRP_SEL] = 0x02e0,
>> + [PWRAP_DEW_CIPHER_KEY_SEL] = 0x02e2,
>> + [PWRAP_DEW_CIPHER_IV_SEL] = 0x02e4,
>> + [PWRAP_DEW_CIPHER_EN] = 0x02e6,
>> + [PWRAP_DEW_CIPHER_RDY] = 0x02e8,
>> + [PWRAP_DEW_CIPHER_MODE] = 0x02ea,
>> + [PWRAP_DEW_CIPHER_SWRST] = 0x02ec,
>> + [PWRAP_DEW_RDDMY_NO] = 0x02ee,
>> +};
>> +
>> static const u32 mt6331_regs[] = {
>> [PWRAP_DEW_DIO_EN] = 0x018c,
>> [PWRAP_DEW_READ_TEST] = 0x018e,
>> @@ -394,7 +414,7 @@ enum pwrap_regs {
>> PWRAP_ADC_RDATA_ADDR1,
>> PWRAP_ADC_RDATA_ADDR2,
>> - /* MT7622 only regs */
>> + /* MT7622 and MT6735 only regs */
>> PWRAP_STA,
>> PWRAP_CLR,
>> PWRAP_DVFS_ADR8,
>> @@ -417,6 +437,8 @@ enum pwrap_regs {
>> PWRAP_ADC_RDATA_ADDR,
>> PWRAP_GPS_STA,
>> PWRAP_SW_RST,
>> +
>> + /* MT7622 only regs */
>> PWRAP_DVFS_STEP_CTRL0,
>> PWRAP_DVFS_STEP_CTRL1,
>> PWRAP_DVFS_STEP_CTRL2,
>> @@ -481,6 +503,50 @@ enum pwrap_regs {
>> /* MT8516 only regs */
>> PWRAP_OP_TYPE,
>> PWRAP_MSB_FIRST,
>> +
>> + /* MT6735 only regs */
>> + PWRAP_WACS3_EN,
>> + PWRAP_INIT_DONE3,
>> + PWRAP_WACS3_CMD,
>> + PWRAP_WACS3_RDATA,
>> + PWRAP_WACS3_VLDCLR,
>
> Are you sure that you need the PWRAP_MD_ADC_xxxx registers in here?
>
> Since MD is relatively big on its own, I'm not sure how to proceed
> here.. it may
> make sense to split the MD part to a different array, or it may
> not... I do need
> to understand what's going on.
>
> Can you please point me at some reference code to look at, so that I
> can understand
> the situation a bit?
>
> Besides, I'm noticing that the "MD_ADC_RDATA_ADDR_R(x)" are
> sequential registers
> and that's on more than just MT6735: instead of having 32 more
> entries, it might
> make more sense to set only the first and declare the number (or
> size) of regs...
>
> Something like:
>
> enum pwrap_regs {
> .....
> PWRAP_MD_ADC_RDATA_ADDR_LATEST,
> PWRAP_MD_ADC_RDATA_ADDR_WP,
> PWRAP_MD_ADC_RDATA_ADDR_R0,
> PWRAP_MD_ADC_STA0,
> PWRAP_MD_ADC_STA1,
> PWRAP_MD_ADC_STA2
> };
>
> static const struct pmic_wrapper_type pwrap_mt6735 = {
> .regs = mt6735_regs,
> .num_md_addr = 32,
> [other stuff]
> };
>
> ...but again, please, if you can point me at an implementation that
> actually
> uses the R(x) registers, that'd be better ... so that we can choose
> the best
> option to add those in there.
>
> Everything else is great: good job :-)
>
> Cheers,
> Angelo
I just defined all the registers I could find. We aren't using them for
anything yet so it's also fine to keep them out for now.
It seems that in the downstream kernel they are only initialized once
and never accessed again. This is the only place I could find where
they are accessed:
https://gitlab.com/Tooniis/linux-samsung-grandpplte/-/blob/master/drivers/misc/mediatek/pmic_wrap/mt6735/pwrap_hal.c#L1254-1290
Il 21/10/24 16:48, Yassine Oudjana ha scritto:
>
> On Mon, Oct 21 2024 at 15:25:00 +02:00:00, AngeloGioacchino Del Regno
> <angelogioacchino.delregno@collabora.com> wrote:
>> Il 18/10/24 10:10, Yassine Oudjana ha scritto:
>>> From: Yassine Oudjana <y.oudjana@protonmail.com>
>>>
>>> Add register definitions and configuration for the MT6735 SoC and the
>>> MT6328 PMIC which are commonly paired and communicate through the PMIC
>>> wrapper.
>>>
>>> Note that the PMIC wrapper on MT6735M has a slightly different register
>>> map and is therefore NOT compatible with MT6735.
>>>
>>> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
>>> ---
>>> drivers/soc/mediatek/mtk-pmic-wrap.c | 251 ++++++++++++++++++++++++++-
>>> 1 file changed, 248 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-
>>> pmic-wrap.c
>>> index 9fdc0ef792026..b9e8dd2a5999d 100644
>>> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
>>> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
>>> @@ -3,6 +3,7 @@
>>> * Copyright (c) 2014 MediaTek Inc.
>>> * Author: Flora Fu, MediaTek
>>> */
>>> +
>>> #include <linux/clk.h>
>>> #include <linux/interrupt.h>
>>> #include <linux/io.h>
>>> @@ -100,7 +101,7 @@ enum dew_regs {
>>> PWRAP_DEW_CIPHER_MODE,
>>> PWRAP_DEW_CIPHER_SWRST,
>>> - /* MT6323 only regs */
>>> + /* MT6323 and MT6328 only regs */
>>> PWRAP_DEW_CIPHER_EN,
>>> PWRAP_DEW_RDDMY_NO,
>>> @@ -121,8 +122,10 @@ enum dew_regs {
>>> PWRAP_RG_SPI_CON13,
>>> PWRAP_SPISLV_KEY,
>>> - /* MT6359 only regs */
>>> + /* MT6359 and MT6328 only regs */
>>> PWRAP_DEW_CRC_SWRST,
>>> +
>>> + /* MT6359 only regs */
>>> PWRAP_DEW_RG_EN_RECORD,
>>> PWRAP_DEW_RECORD_CMD0,
>>> PWRAP_DEW_RECORD_CMD1,
>>> @@ -171,6 +174,23 @@ static const u32 mt6323_regs[] = {
>>> [PWRAP_DEW_RDDMY_NO] = 0x01a4,
>>> };
>>> +static const u32 mt6328_regs[] = {
>>> + [PWRAP_DEW_DIO_EN] = 0x02d4,
>>> + [PWRAP_DEW_READ_TEST] = 0x02d6,
>>> + [PWRAP_DEW_WRITE_TEST] = 0x02d8,
>>> + [PWRAP_DEW_CRC_SWRST] = 0x02da,
>>> + [PWRAP_DEW_CRC_EN] = 0x02dc,
>>> + [PWRAP_DEW_CRC_VAL] = 0x02de,
>>> + [PWRAP_DEW_MON_GRP_SEL] = 0x02e0,
>>> + [PWRAP_DEW_CIPHER_KEY_SEL] = 0x02e2,
>>> + [PWRAP_DEW_CIPHER_IV_SEL] = 0x02e4,
>>> + [PWRAP_DEW_CIPHER_EN] = 0x02e6,
>>> + [PWRAP_DEW_CIPHER_RDY] = 0x02e8,
>>> + [PWRAP_DEW_CIPHER_MODE] = 0x02ea,
>>> + [PWRAP_DEW_CIPHER_SWRST] = 0x02ec,
>>> + [PWRAP_DEW_RDDMY_NO] = 0x02ee,
>>> +};
>>> +
>>> static const u32 mt6331_regs[] = {
>>> [PWRAP_DEW_DIO_EN] = 0x018c,
>>> [PWRAP_DEW_READ_TEST] = 0x018e,
>>> @@ -394,7 +414,7 @@ enum pwrap_regs {
>>> PWRAP_ADC_RDATA_ADDR1,
>>> PWRAP_ADC_RDATA_ADDR2,
>>> - /* MT7622 only regs */
>>> + /* MT7622 and MT6735 only regs */
>>> PWRAP_STA,
>>> PWRAP_CLR,
>>> PWRAP_DVFS_ADR8,
>>> @@ -417,6 +437,8 @@ enum pwrap_regs {
>>> PWRAP_ADC_RDATA_ADDR,
>>> PWRAP_GPS_STA,
>>> PWRAP_SW_RST,
>>> +
>>> + /* MT7622 only regs */
>>> PWRAP_DVFS_STEP_CTRL0,
>>> PWRAP_DVFS_STEP_CTRL1,
>>> PWRAP_DVFS_STEP_CTRL2,
>>> @@ -481,6 +503,50 @@ enum pwrap_regs {
>>> /* MT8516 only regs */
>>> PWRAP_OP_TYPE,
>>> PWRAP_MSB_FIRST,
>>> +
>>> + /* MT6735 only regs */
>>> + PWRAP_WACS3_EN,
>>> + PWRAP_INIT_DONE3,
>>> + PWRAP_WACS3_CMD,
>>> + PWRAP_WACS3_RDATA,
>>> + PWRAP_WACS3_VLDCLR,
>>
>> Are you sure that you need the PWRAP_MD_ADC_xxxx registers in here?
>>
>> Since MD is relatively big on its own, I'm not sure how to proceed here.. it may
>> make sense to split the MD part to a different array, or it may not... I do need
>> to understand what's going on.
>>
>> Can you please point me at some reference code to look at, so that I can understand
>> the situation a bit?
>>
>> Besides, I'm noticing that the "MD_ADC_RDATA_ADDR_R(x)" are sequential registers
>> and that's on more than just MT6735: instead of having 32 more entries, it might
>> make more sense to set only the first and declare the number (or size) of regs...
>>
>> Something like:
>>
>> enum pwrap_regs {
>> .....
>> PWRAP_MD_ADC_RDATA_ADDR_LATEST,
>> PWRAP_MD_ADC_RDATA_ADDR_WP,
>> PWRAP_MD_ADC_RDATA_ADDR_R0,
>> PWRAP_MD_ADC_STA0,
>> PWRAP_MD_ADC_STA1,
>> PWRAP_MD_ADC_STA2
>> };
>>
>> static const struct pmic_wrapper_type pwrap_mt6735 = {
>> .regs = mt6735_regs,
>> .num_md_addr = 32,
>> [other stuff]
>> };
>>
>> ...but again, please, if you can point me at an implementation that actually
>> uses the R(x) registers, that'd be better ... so that we can choose the best
>> option to add those in there.
>>
>> Everything else is great: good job :-)
>>
>> Cheers,
>> Angelo
>
> I just defined all the registers I could find. We aren't using them for anything
> yet so it's also fine to keep them out for now.
>
> It seems that in the downstream kernel they are only initialized once and never
> accessed again. This is the only place I could find where they are accessed:
> https://gitlab.com/Tooniis/linux-samsung-grandpplte/-/blob/master/drivers/misc/
> mediatek/pmic_wrap/mt6735/pwrap_hal.c#L1254-1290
>
>
Thanks for pointing me at that reference.
Yeah, looks like they're getting statically initialized to some value, and then
nothing else... I wonder if the values that they're writing are just the register
defaults, or if they're actually overriding anything for real...
...that's because, in case those are the defaults, we may get them set by just
resetting the MD, catching two birds with one stone.
That'd be easy to check, anyway, as you can just read them out and see if the
values are these...
Anyway, if the MD is still unused, I would - at this point - suggest to just get
everything else that is important right now upstreamed in the pwrap driver, and
delay the addition of the PWRAP_MD registers to when MD support will be upstreamed.
That - unless you want to go deep into that MD rabbithole now... but again, I
would suggest to do that in small steps: at least you get the main components
of the platform working upstream sooner than later! :-)
Cheers,
Angelo
On Tue, Oct 22 2024 at 11:44:46 +02:00:00, AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com> wrote:
> Il 21/10/24 16:48, Yassine Oudjana ha scritto:
>>
>> On Mon, Oct 21 2024 at 15:25:00 +02:00:00, AngeloGioacchino Del
>> Regno <angelogioacchino.delregno@collabora.com> wrote:
>>> Il 18/10/24 10:10, Yassine Oudjana ha scritto:
>>>> From: Yassine Oudjana <y.oudjana@protonmail.com>
>>>>
>>>> Add register definitions and configuration for the MT6735 SoC and
>>>> the
>>>> MT6328 PMIC which are commonly paired and communicate through the
>>>> PMIC
>>>> wrapper.
>>>>
>>>> Note that the PMIC wrapper on MT6735M has a slightly different
>>>> register
>>>> map and is therefore NOT compatible with MT6735.
>>>>
>>>> Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
>>>> ---
>>>> drivers/soc/mediatek/mtk-pmic-wrap.c | 251
>>>> ++++++++++++++++++++++++++-
>>>> 1 file changed, 248 insertions(+), 3 deletions(-)
>>>>
>>>> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c
>>>> b/drivers/soc/mediatek/mtk- pmic-wrap.c
>>>> index 9fdc0ef792026..b9e8dd2a5999d 100644
>>>> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
>>>> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
>>>> @@ -3,6 +3,7 @@
>>>> * Copyright (c) 2014 MediaTek Inc.
>>>> * Author: Flora Fu, MediaTek
>>>> */
>>>> +
>>>> #include <linux/clk.h>
>>>> #include <linux/interrupt.h>
>>>> #include <linux/io.h>
>>>> @@ -100,7 +101,7 @@ enum dew_regs {
>>>> PWRAP_DEW_CIPHER_MODE,
>>>> PWRAP_DEW_CIPHER_SWRST,
>>>> - /* MT6323 only regs */
>>>> + /* MT6323 and MT6328 only regs */
>>>> PWRAP_DEW_CIPHER_EN,
>>>> PWRAP_DEW_RDDMY_NO,
>>>> @@ -121,8 +122,10 @@ enum dew_regs {
>>>> PWRAP_RG_SPI_CON13,
>>>> PWRAP_SPISLV_KEY,
>>>> - /* MT6359 only regs */
>>>> + /* MT6359 and MT6328 only regs */
>>>> PWRAP_DEW_CRC_SWRST,
>>>> +
>>>> + /* MT6359 only regs */
>>>> PWRAP_DEW_RG_EN_RECORD,
>>>> PWRAP_DEW_RECORD_CMD0,
>>>> PWRAP_DEW_RECORD_CMD1,
>>>> @@ -171,6 +174,23 @@ static const u32 mt6323_regs[] = {
>>>> [PWRAP_DEW_RDDMY_NO] = 0x01a4,
>>>> };
>>>> +static const u32 mt6328_regs[] = {
>>>> + [PWRAP_DEW_DIO_EN] = 0x02d4,
>>>> + [PWRAP_DEW_READ_TEST] = 0x02d6,
>>>> + [PWRAP_DEW_WRITE_TEST] = 0x02d8,
>>>> + [PWRAP_DEW_CRC_SWRST] = 0x02da,
>>>> + [PWRAP_DEW_CRC_EN] = 0x02dc,
>>>> + [PWRAP_DEW_CRC_VAL] = 0x02de,
>>>> + [PWRAP_DEW_MON_GRP_SEL] = 0x02e0,
>>>> + [PWRAP_DEW_CIPHER_KEY_SEL] = 0x02e2,
>>>> + [PWRAP_DEW_CIPHER_IV_SEL] = 0x02e4,
>>>> + [PWRAP_DEW_CIPHER_EN] = 0x02e6,
>>>> + [PWRAP_DEW_CIPHER_RDY] = 0x02e8,
>>>> + [PWRAP_DEW_CIPHER_MODE] = 0x02ea,
>>>> + [PWRAP_DEW_CIPHER_SWRST] = 0x02ec,
>>>> + [PWRAP_DEW_RDDMY_NO] = 0x02ee,
>>>> +};
>>>> +
>>>> static const u32 mt6331_regs[] = {
>>>> [PWRAP_DEW_DIO_EN] = 0x018c,
>>>> [PWRAP_DEW_READ_TEST] = 0x018e,
>>>> @@ -394,7 +414,7 @@ enum pwrap_regs {
>>>> PWRAP_ADC_RDATA_ADDR1,
>>>> PWRAP_ADC_RDATA_ADDR2,
>>>> - /* MT7622 only regs */
>>>> + /* MT7622 and MT6735 only regs */
>>>> PWRAP_STA,
>>>> PWRAP_CLR,
>>>> PWRAP_DVFS_ADR8,
>>>> @@ -417,6 +437,8 @@ enum pwrap_regs {
>>>> PWRAP_ADC_RDATA_ADDR,
>>>> PWRAP_GPS_STA,
>>>> PWRAP_SW_RST,
>>>> +
>>>> + /* MT7622 only regs */
>>>> PWRAP_DVFS_STEP_CTRL0,
>>>> PWRAP_DVFS_STEP_CTRL1,
>>>> PWRAP_DVFS_STEP_CTRL2,
>>>> @@ -481,6 +503,50 @@ enum pwrap_regs {
>>>> /* MT8516 only regs */
>>>> PWRAP_OP_TYPE,
>>>> PWRAP_MSB_FIRST,
>>>> +
>>>> + /* MT6735 only regs */
>>>> + PWRAP_WACS3_EN,
>>>> + PWRAP_INIT_DONE3,
>>>> + PWRAP_WACS3_CMD,
>>>> + PWRAP_WACS3_RDATA,
>>>> + PWRAP_WACS3_VLDCLR,
>>>
>>> Are you sure that you need the PWRAP_MD_ADC_xxxx registers in here?
>>>
>>> Since MD is relatively big on its own, I'm not sure how to proceed
>>> here.. it may
>>> make sense to split the MD part to a different array, or it may
>>> not... I do need
>>> to understand what's going on.
>>>
>>> Can you please point me at some reference code to look at, so that
>>> I can understand
>>> the situation a bit?
>>>
>>> Besides, I'm noticing that the "MD_ADC_RDATA_ADDR_R(x)" are
>>> sequential registers
>>> and that's on more than just MT6735: instead of having 32 more
>>> entries, it might
>>> make more sense to set only the first and declare the number (or
>>> size) of regs...
>>>
>>> Something like:
>>>
>>> enum pwrap_regs {
>>> .....
>>> PWRAP_MD_ADC_RDATA_ADDR_LATEST,
>>> PWRAP_MD_ADC_RDATA_ADDR_WP,
>>> PWRAP_MD_ADC_RDATA_ADDR_R0,
>>> PWRAP_MD_ADC_STA0,
>>> PWRAP_MD_ADC_STA1,
>>> PWRAP_MD_ADC_STA2
>>> };
>>>
>>> static const struct pmic_wrapper_type pwrap_mt6735 = {
>>> .regs = mt6735_regs,
>>> .num_md_addr = 32,
>>> [other stuff]
>>> };
>>>
>>> ...but again, please, if you can point me at an implementation that
>>> actually
>>> uses the R(x) registers, that'd be better ... so that we can choose
>>> the best
>>> option to add those in there.
>>>
>>> Everything else is great: good job :-)
>>>
>>> Cheers,
>>> Angelo
>>
>> I just defined all the registers I could find. We aren't using them
>> for anything yet so it's also fine to keep them out for now.
>>
>> It seems that in the downstream kernel they are only initialized
>> once and never accessed again. This is the only place I could find
>> where they are accessed:
>> https://gitlab.com/Tooniis/linux-samsung-grandpplte/-/blob/master/drivers/misc/
>> mediatek/pmic_wrap/mt6735/pwrap_hal.c#L1254-1290
>>
>>
>
> Thanks for pointing me at that reference.
>
> Yeah, looks like they're getting statically initialized to some
> value, and then
> nothing else... I wonder if the values that they're writing are just
> the register
> defaults, or if they're actually overriding anything for real...
>
> ...that's because, in case those are the defaults, we may get them
> set by just
> resetting the MD, catching two birds with one stone.
> That'd be easy to check, anyway, as you can just read them out and
> see if the
> values are these...
The values aren't defaults. The registers all default to 0 and these
values are PMIC registers.
Anyway, I'll just remove the registers since I won't need them any time
soon.
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