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Message-ID: <66d4155c-8b71-1904-e0d4-99da7d0b6ea2@gmail.com>
Date: Wed, 12 Apr 2023 14:55:24 +0200
From: Matthias Brugger <matthias.bgg@...il.com>
To: Alexandre Mergnat <amergnat@...libre.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
Cc: robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
flora.fu@...iatek.com, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org, kernel@...labora.com,
phone-devel@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH v2 6/6] soc: mediatek: pwrap: Add support for MT6795 Helio
X10
On 30/03/2023 01:07, Alexandre Mergnat wrote:
> " or
>
> Le ven. 24 mars 2023 à 10:42, AngeloGioacchino Del Regno
> <angelogioacchino.delregno@...labora.com> a écrit :
>>
>> Add the necessary bits to support the MT6795 Helio X10 smartphone SoC:
>> this is always paired with a MT6331 PMIC, with MT6332 companion.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
>> ---
>> drivers/soc/mediatek/mtk-pmic-wrap.c | 131 ++++++++++++++++++++++++++-
>> 1 file changed, 130 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
>> index ceeac43f7bd1..20d32328382a 100644
>> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
>> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
>> @@ -639,6 +639,91 @@ static int mt6779_regs[] = {
>> [PWRAP_WACS2_VLDCLR] = 0xC28,
>> };
>>
>> +static int mt6795_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_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_INT_EN] = 0xac,
>> + [PWRAP_INT_FLG_RAW] = 0xb0,
>> + [PWRAP_INT_FLG] = 0xb4,
>> + [PWRAP_INT_CLR] = 0xb8,
>> + [PWRAP_SIG_ADR] = 0xbc,
>> + [PWRAP_SIG_MODE] = 0xc0,
>> + [PWRAP_SIG_VALUE] = 0xc4,
>> + [PWRAP_SIG_ERRVAL] = 0xc8,
>> + [PWRAP_CRC_EN] = 0xcc,
>> + [PWRAP_TIMER_EN] = 0xd0,
>> + [PWRAP_TIMER_STA] = 0xd4,
>> + [PWRAP_WDT_UNIT] = 0xd8,
>> + [PWRAP_WDT_SRC_EN] = 0xdc,
>> + [PWRAP_WDT_FLG] = 0xe0,
>> + [PWRAP_DEBUG_INT_SEL] = 0xe4,
>> + [PWRAP_DVFS_ADR0] = 0xe8,
>> + [PWRAP_DVFS_WDATA0] = 0xec,
>> + [PWRAP_DVFS_ADR1] = 0xf0,
>> + [PWRAP_DVFS_WDATA1] = 0xf4,
>> + [PWRAP_DVFS_ADR2] = 0xf8,
>> + [PWRAP_DVFS_WDATA2] = 0xfc,
>> + [PWRAP_DVFS_ADR3] = 0x100,
>> + [PWRAP_DVFS_WDATA3] = 0x104,
>> + [PWRAP_DVFS_ADR4] = 0x108,
>> + [PWRAP_DVFS_WDATA4] = 0x10c,
>> + [PWRAP_DVFS_ADR5] = 0x110,
>> + [PWRAP_DVFS_WDATA5] = 0x114,
>> + [PWRAP_DVFS_ADR6] = 0x118,
>> + [PWRAP_DVFS_WDATA6] = 0x11c,
>> + [PWRAP_DVFS_ADR7] = 0x120,
>> + [PWRAP_DVFS_WDATA7] = 0x124,
>> + [PWRAP_SPMINF_STA] = 0x128,
>> + [PWRAP_CIPHER_KEY_SEL] = 0x12c,
>> + [PWRAP_CIPHER_IV_SEL] = 0x130,
>> + [PWRAP_CIPHER_EN] = 0x134,
>> + [PWRAP_CIPHER_RDY] = 0x138,
>> + [PWRAP_CIPHER_MODE] = 0x13c,
>> + [PWRAP_CIPHER_SWRST] = 0x140,
>> + [PWRAP_DCM_EN] = 0x144,
>> + [PWRAP_DCM_DBC_PRD] = 0x148,
>> + [PWRAP_EXT_CK] = 0x14c,
>> +};
>> +
>> static int mt6797_regs[] = {
>> [PWRAP_MUX_SEL] = 0x0,
>> [PWRAP_WRAP_EN] = 0x4,
>> @@ -1230,6 +1315,7 @@ enum pwrap_type {
>> PWRAP_MT2701,
>> PWRAP_MT6765,
>> PWRAP_MT6779,
>> + PWRAP_MT6795,
>> PWRAP_MT6797,
>> PWRAP_MT6873,
>> PWRAP_MT7622,
>> @@ -1650,6 +1736,20 @@ 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_MT6795:
>> + if (wrp->slave->type == PMIC_MT6331) {
>> + const u32 *dew_regs = wrp->slave->dew_regs;
>> +
>> + pwrap_write(wrp, dew_regs[PWRAP_DEW_RDDMY_NO], 0x8);
>> +
>> + if (wrp->slave->comp_type == PMIC_MT6332) {
>> + dew_regs = wrp->slave->comp_dew_regs;
>> + pwrap_write(wrp, dew_regs[PWRAP_DEW_RDDMY_NO], 0x8);
>> + }
>> + }
>> + pwrap_writel(wrp, 0x88, PWRAP_RDDMY);
>> + pwrap_init_chip_select_ext(wrp, 15, 15, 15, 15);
>> + break;
>> case PWRAP_MT8173:
>> pwrap_init_chip_select_ext(wrp, 0, 4, 2, 2);
>> break;
>> @@ -1744,6 +1844,7 @@ static int pwrap_init_cipher(struct pmic_wrapper *wrp)
>> case PWRAP_MT2701:
>> case PWRAP_MT6765:
>> case PWRAP_MT6779:
>> + case PWRAP_MT6795:
>> case PWRAP_MT6797:
>> case PWRAP_MT8173:
>> case PWRAP_MT8186:
>> @@ -1914,6 +2015,19 @@ static int pwrap_mt2701_init_soc_specific(struct pmic_wrapper *wrp)
>> return 0;
>> }
>>
>> +static int pwrap_mt6795_init_soc_specific(struct pmic_wrapper *wrp)
>> +{
>> + pwrap_writel(wrp, 0xf, PWRAP_STAUPD_GRPEN);
>> +
>> + if (wrp->slave->type == PMIC_MT6331)
>> + pwrap_writel(wrp, 0x1b4, PWRAP_EINT_STA0_ADR);
>> +
>> + if (wrp->slave->comp_type == PMIC_MT6332)
>> + pwrap_writel(wrp, 0x8112, PWRAP_EINT_STA1_ADR);
>> +
>> + return 0;
>> +}
>> +
>> static int pwrap_mt7622_init_soc_specific(struct pmic_wrapper *wrp)
>> {
>> pwrap_writel(wrp, 0, PWRAP_STAUPD_PRD);
>> @@ -1949,7 +2063,8 @@ static int pwrap_init(struct pmic_wrapper *wrp)
>> if (wrp->rstc_bridge)
>> reset_control_reset(wrp->rstc_bridge);
>>
>> - if (wrp->master->type == PWRAP_MT8173) {
>> + if (wrp->master->type == PWRAP_MT8173 ||
>> + wrp->master->type == PWRAP_MT6795) {
>
> I would prefer to put a switch case like it's done in
> "pwrap_common_init_reg_clock" or
> "pwrap_init_cipher".
>
I agree, a switch would be better here.
Regards,
Matthias
> My second choice (which isn't aligned with the current
> implementation), is to add boolean
> capabilities in the "struct pmic_wrapper_type".
>
>> /* Enable DCM */
>> pwrap_writel(wrp, 3, PWRAP_DCM_EN);
>> pwrap_writel(wrp, 0, PWRAP_DCM_DBC_PRD);
>> @@ -2185,6 +2300,19 @@ static const struct pmic_wrapper_type pwrap_mt6779 = {
>> .init_soc_specific = NULL,
>> };
>>
>> +static const struct pmic_wrapper_type pwrap_mt6795 = {
>> + .regs = mt6795_regs,
>> + .type = PWRAP_MT6795,
>> + .arb_en_all = 0x3f,
>> + .int_en_all = ~(u32)(BIT(31) | BIT(2) | BIT(1)),
>> + .int1_en_all = 0,
>> + .spi_w = PWRAP_MAN_CMD_SPI_WRITE,
>> + .wdt_src = PWRAP_WDT_SRC_MASK_NO_STAUPD,
>> + .caps = PWRAP_CAP_RESET | PWRAP_CAP_DCM,
>> + .init_reg_clock = pwrap_common_init_reg_clock,
>> + .init_soc_specific = pwrap_mt6795_init_soc_specific,
>
> TBH, I don't know if variables should be reordered in alphabetic order
> or keep the order of other structures.
> it's just to notify.
>
>> +};
>> +
>> static const struct pmic_wrapper_type pwrap_mt6797 = {
>> .regs = mt6797_regs,
>> .type = PWRAP_MT6797,
>> @@ -2318,6 +2446,7 @@ static const struct of_device_id of_pwrap_match_tbl[] = {
>> { .compatible = "mediatek,mt2701-pwrap", .data = &pwrap_mt2701 },
>> { .compatible = "mediatek,mt6765-pwrap", .data = &pwrap_mt6765 },
>> { .compatible = "mediatek,mt6779-pwrap", .data = &pwrap_mt6779 },
>> + { .compatible = "mediatek,mt6795-pwrap", .data = &pwrap_mt6795 },
>> { .compatible = "mediatek,mt6797-pwrap", .data = &pwrap_mt6797 },
>> { .compatible = "mediatek,mt6873-pwrap", .data = &pwrap_mt6873 },
>> { .compatible = "mediatek,mt7622-pwrap", .data = &pwrap_mt7622 },
>> --
>> 2.40.0
>>
>
> Regards,
> Alex
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