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by 2002:a63:f050:: with SMTP id s16mr2688986pgj.261.1592567683124; Fri, 19 Jun 2020 04:54:43 -0700 (PDT) Received: from localhost.localdomain ([2402:7500:46c:79b7:a5d3:5b37:1d99:175a]) by smtp.gmail.com with ESMTPSA id n64sm5026712pga.38.2020.06.19.04.54.37 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 19 Jun 2020 04:54:42 -0700 (PDT) From: Gene Chen To: lee.jones@linaro.org, jic23@kernel.org, jacek.anaszewski@gmail.com, pavel@ucw.cz, matthias.bgg@gmail.com Subject: [PATCH v2 2/4] mfd: mt6360: implement i2c R/W with CRC Date: Fri, 19 Jun 2020 19:53:49 +0800 Message-Id: <1592567631-20363-3-git-send-email-gene.chen.richtek@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1592567631-20363-1-git-send-email-gene.chen.richtek@gmail.com> References: <1592567631-20363-1-git-send-email-gene.chen.richtek@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200619_045445_492981_A300DE59 X-CRM114-Status: GOOD ( 13.89 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:444 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [gene.chen.richtek[at]gmail.com] -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: gene_chen@richtek.com, lars@metafoo.de, lgirdwood@gmail.com, linux-kernel@vger.kernel.org, cy_huang@richtek.com, benjamin.chao@mediatek.com, broonie@kernel.org, linux-mediatek@lists.infradead.org, dmurphy@ti.com, pmeerw@pmeerw.net, knaack.h@gmx.de, linux-arm-kernel@lists.infradead.org, shufan_lee@richtek.com MIME-Version: 1.0 Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org From: Gene Chen imlement i2c R/W with CRC when access sub-device PMIC and LDO part Signed-off-by: Gene Chen --- drivers/mfd/Kconfig | 1 + drivers/mfd/mt6360-core.c | 541 +++++++++++++++++++++++++++++---------------- include/linux/mfd/mt6360.h | 240 -------------------- 3 files changed, 357 insertions(+), 425 deletions(-) delete mode 100644 include/linux/mfd/mt6360.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index a37d7d1..0684ddc 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -913,6 +913,7 @@ config MFD_MT6360 select MFD_CORE select REGMAP_I2C select REGMAP_IRQ + select CRC8 depends on I2C help Say Y here to enable MT6360 PMU/PMIC/LDO functional support. diff --git a/drivers/mfd/mt6360-core.c b/drivers/mfd/mt6360-core.c index e9cacc2..00e3cb5 100644 --- a/drivers/mfd/mt6360-core.c +++ b/drivers/mfd/mt6360-core.c @@ -5,122 +5,160 @@ * Author: Gene Chen */ +#include +#include #include -#include +#include +#include +#include #include -#include #include -#include -#include -#include -#include -#include +enum { + MT6360_SLAVE_TCPC = 0, + MT6360_SLAVE_PMIC, + MT6360_SLAVE_LDO, + MT6360_SLAVE_PMU, + MT6360_SLAVE_MAX, +}; + +struct mt6360_data { + struct i2c_client *i2c[MT6360_SLAVE_MAX]; + struct device *dev; + struct regmap *regmap; + struct regmap_irq_chip_data *irq_data; + unsigned int chip_rev; + u8 crc8_tbl[CRC8_TABLE_SIZE]; +}; + +#define MT6360_PMU_SLAVEID 0x34 +#define MT6360_PMIC_SLAVEID 0x1A +#define MT6360_LDO_SLAVEID 0x64 +#define MT6360_TCPC_SLAVEID 0x4E + +#define MT6360_REG_TCPCSTART 0x00 +#define MT6360_REG_TCPCEND 0xFF +#define MT6360_REG_PMICSTART 0x100 +#define MT6360_REG_PMICEND 0x13B +#define MT6360_REG_LDOSTART 0x200 +#define MT6360_REG_LDOEND 0x21C +#define MT6360_REG_PMUSTART 0x300 +#define MT6360_REG_PMU_DEVINFO 0x300 +#define MT6360_REG_PMU_CHGIRQ1 0x3D0 +#define MT6360_REG_PMU_CHGMASK1 0x3F0 +#define MT6360_REG_PMUEND 0x3FF + +/* from 0x3D0 to 0x3DF */ +#define MT6360_IRQ_REGNUM 16 + +#define MT6360_CHIPVEN_MASK 0xF0 +#define MT6360_CHIPVEN_VAL 0x50 +#define MT6360_CHIPREV_MASK 0x0F /* reg 0 -> 0 ~ 7 */ -#define MT6360_CHG_TREG_EVT (4) -#define MT6360_CHG_AICR_EVT (5) -#define MT6360_CHG_MIVR_EVT (6) -#define MT6360_PWR_RDY_EVT (7) +#define MT6360_CHG_TREG_EVT 4 +#define MT6360_CHG_AICR_EVT 5 +#define MT6360_CHG_MIVR_EVT 6 +#define MT6360_PWR_RDY_EVT 7 /* REG 1 -> 8 ~ 15 */ -#define MT6360_CHG_BATSYSUV_EVT (9) -#define MT6360_FLED_CHG_VINOVP_EVT (11) -#define MT6360_CHG_VSYSUV_EVT (12) -#define MT6360_CHG_VSYSOV_EVT (13) -#define MT6360_CHG_VBATOV_EVT (14) -#define MT6360_CHG_VBUSOV_EVT (15) +#define MT6360_CHG_BATSYSUV_EVT 9 +#define MT6360_FLED_CHG_VINOVP_EVT 11 +#define MT6360_CHG_VSYSUV_EVT 12 +#define MT6360_CHG_VSYSOV_EVT 13 +#define MT6360_CHG_VBATOV_EVT 14 +#define MT6360_CHG_VBUSOV_EVT 15 /* REG 2 -> 16 ~ 23 */ /* REG 3 -> 24 ~ 31 */ -#define MT6360_WD_PMU_DET (25) -#define MT6360_WD_PMU_DONE (26) -#define MT6360_CHG_TMRI (27) -#define MT6360_CHG_ADPBADI (29) -#define MT6360_CHG_RVPI (30) -#define MT6360_OTPI (31) +#define MT6360_WD_PMU_DET 25 +#define MT6360_WD_PMU_DONE 26 +#define MT6360_CHG_TMRI 27 +#define MT6360_CHG_ADPBADI 29 +#define MT6360_CHG_RVPI 30 +#define MT6360_OTPI 31 /* REG 4 -> 32 ~ 39 */ -#define MT6360_CHG_AICCMEASL (32) -#define MT6360_CHGDET_DONEI (34) -#define MT6360_WDTMRI (35) -#define MT6360_SSFINISHI (36) -#define MT6360_CHG_RECHGI (37) -#define MT6360_CHG_TERMI (38) -#define MT6360_CHG_IEOCI (39) +#define MT6360_CHG_AICCMEASL 32 +#define MT6360_CHGDET_DONEI 34 +#define MT6360_WDTMRI 35 +#define MT6360_SSFINISHI 36 +#define MT6360_CHG_RECHGI 37 +#define MT6360_CHG_TERMI 38 +#define MT6360_CHG_IEOCI 39 /* REG 5 -> 40 ~ 47 */ -#define MT6360_PUMPX_DONEI (40) -#define MT6360_BAT_OVP_ADC_EVT (41) -#define MT6360_TYPEC_OTP_EVT (42) -#define MT6360_ADC_WAKEUP_EVT (43) -#define MT6360_ADC_DONEI (44) -#define MT6360_BST_BATUVI (45) -#define MT6360_BST_VBUSOVI (46) -#define MT6360_BST_OLPI (47) +#define MT6360_PUMPX_DONEI 40 +#define MT6360_BAT_OVP_ADC_EVT 41 +#define MT6360_TYPEC_OTP_EVT 42 +#define MT6360_ADC_WAKEUP_EVT 43 +#define MT6360_ADC_DONEI 44 +#define MT6360_BST_BATUVI 45 +#define MT6360_BST_VBUSOVI 46 +#define MT6360_BST_OLPI 47 /* REG 6 -> 48 ~ 55 */ -#define MT6360_ATTACH_I (48) -#define MT6360_DETACH_I (49) -#define MT6360_QC30_STPDONE (51) -#define MT6360_QC_VBUSDET_DONE (52) -#define MT6360_HVDCP_DET (53) -#define MT6360_CHGDETI (54) -#define MT6360_DCDTI (55) +#define MT6360_ATTACH_I 48 +#define MT6360_DETACH_I 49 +#define MT6360_QC30_STPDONE 51 +#define MT6360_QC_VBUSDET_DONE 52 +#define MT6360_HVDCP_DET 53 +#define MT6360_CHGDETI 54 +#define MT6360_DCDTI 55 /* REG 7 -> 56 ~ 63 */ -#define MT6360_FOD_DONE_EVT (56) -#define MT6360_FOD_OV_EVT (57) -#define MT6360_CHRDET_UVP_EVT (58) -#define MT6360_CHRDET_OVP_EVT (59) -#define MT6360_CHRDET_EXT_EVT (60) -#define MT6360_FOD_LR_EVT (61) -#define MT6360_FOD_HR_EVT (62) -#define MT6360_FOD_DISCHG_FAIL_EVT (63) +#define MT6360_FOD_DONE_EVT 56 +#define MT6360_FOD_OV_EVT 57 +#define MT6360_CHRDET_UVP_EVT 58 +#define MT6360_CHRDET_OVP_EVT 59 +#define MT6360_CHRDET_EXT_EVT 60 +#define MT6360_FOD_LR_EVT 61 +#define MT6360_FOD_HR_EVT 62 +#define MT6360_FOD_DISCHG_FAIL_EVT 63 /* REG 8 -> 64 ~ 71 */ -#define MT6360_USBID_EVT (64) -#define MT6360_APWDTRST_EVT (65) -#define MT6360_EN_EVT (66) -#define MT6360_QONB_RST_EVT (67) -#define MT6360_MRSTB_EVT (68) -#define MT6360_OTP_EVT (69) -#define MT6360_VDDAOV_EVT (70) -#define MT6360_SYSUV_EVT (71) +#define MT6360_USBID_EVT 64 +#define MT6360_APWDTRST_EVT 65 +#define MT6360_EN_EVT 66 +#define MT6360_QONB_RST_EVT 67 +#define MT6360_MRSTB_EVT 68 +#define MT6360_OTP_EVT 69 +#define MT6360_VDDAOV_EVT 70 +#define MT6360_SYSUV_EVT 71 /* REG 9 -> 72 ~ 79 */ -#define MT6360_FLED_STRBPIN_EVT (72) -#define MT6360_FLED_TORPIN_EVT (73) -#define MT6360_FLED_TX_EVT (74) -#define MT6360_FLED_LVF_EVT (75) -#define MT6360_FLED2_SHORT_EVT (78) -#define MT6360_FLED1_SHORT_EVT (79) +#define MT6360_FLED_STRBPIN_EVT 72 +#define MT6360_FLED_TORPIN_EVT 73 +#define MT6360_FLED_TX_EVT 74 +#define MT6360_FLED_LVF_EVT 75 +#define MT6360_FLED2_SHORT_EVT 78 +#define MT6360_FLED1_SHORT_EVT 79 /* REG 10 -> 80 ~ 87 */ -#define MT6360_FLED2_STRB_EVT (80) -#define MT6360_FLED1_STRB_EVT (81) -#define MT6360_FLED2_STRB_TO_EVT (82) -#define MT6360_FLED1_STRB_TO_EVT (83) -#define MT6360_FLED2_TOR_EVT (84) -#define MT6360_FLED1_TOR_EVT (85) +#define MT6360_FLED2_STRB_EVT 80 +#define MT6360_FLED1_STRB_EVT 81 +#define MT6360_FLED2_STRB_TO_EVT 82 +#define MT6360_FLED1_STRB_TO_EVT 83 +#define MT6360_FLED2_TOR_EVT 84 +#define MT6360_FLED1_TOR_EVT 85 /* REG 11 -> 88 ~ 95 */ /* REG 12 -> 96 ~ 103 */ -#define MT6360_BUCK1_PGB_EVT (96) -#define MT6360_BUCK1_OC_EVT (100) -#define MT6360_BUCK1_OV_EVT (101) -#define MT6360_BUCK1_UV_EVT (102) +#define MT6360_BUCK1_PGB_EVT 96 +#define MT6360_BUCK1_OC_EVT 100 +#define MT6360_BUCK1_OV_EVT 101 +#define MT6360_BUCK1_UV_EVT 102 /* REG 13 -> 104 ~ 111 */ -#define MT6360_BUCK2_PGB_EVT (104) -#define MT6360_BUCK2_OC_EVT (108) -#define MT6360_BUCK2_OV_EVT (109) -#define MT6360_BUCK2_UV_EVT (110) +#define MT6360_BUCK2_PGB_EVT 104 +#define MT6360_BUCK2_OC_EVT 108 +#define MT6360_BUCK2_OV_EVT 109 +#define MT6360_BUCK2_UV_EVT 110 /* REG 14 -> 112 ~ 119 */ -#define MT6360_LDO1_OC_EVT (113) -#define MT6360_LDO2_OC_EVT (114) -#define MT6360_LDO3_OC_EVT (115) -#define MT6360_LDO5_OC_EVT (117) -#define MT6360_LDO6_OC_EVT (118) -#define MT6360_LDO7_OC_EVT (119) +#define MT6360_LDO1_OC_EVT 113 +#define MT6360_LDO2_OC_EVT 114 +#define MT6360_LDO3_OC_EVT 115 +#define MT6360_LDO5_OC_EVT 117 +#define MT6360_LDO6_OC_EVT 118 +#define MT6360_LDO7_OC_EVT 119 /* REG 15 -> 120 ~ 127 */ -#define MT6360_LDO1_PGB_EVT (121) -#define MT6360_LDO2_PGB_EVT (122) -#define MT6360_LDO3_PGB_EVT (123) -#define MT6360_LDO5_PGB_EVT (125) -#define MT6360_LDO6_PGB_EVT (126) -#define MT6360_LDO7_PGB_EVT (127) - -static const struct regmap_irq mt6360_pmu_irqs[] = { +#define MT6360_LDO1_PGB_EVT 121 +#define MT6360_LDO2_PGB_EVT 122 +#define MT6360_LDO3_PGB_EVT 123 +#define MT6360_LDO5_PGB_EVT 125 +#define MT6360_LDO6_PGB_EVT 126 +#define MT6360_LDO7_PGB_EVT 127 + +static const struct regmap_irq mt6360_irqs[] = { REGMAP_IRQ_REG_LINE(MT6360_CHG_TREG_EVT, 8), REGMAP_IRQ_REG_LINE(MT6360_CHG_AICR_EVT, 8), REGMAP_IRQ_REG_LINE(MT6360_CHG_MIVR_EVT, 8), @@ -209,30 +247,16 @@ static const struct regmap_irq mt6360_pmu_irqs[] = { REGMAP_IRQ_REG_LINE(MT6360_LDO7_PGB_EVT, 8), }; -static int mt6360_pmu_handle_post_irq(void *irq_drv_data) -{ - struct mt6360_pmu_data *mpd = irq_drv_data; - - return regmap_update_bits(mpd->regmap, - MT6360_PMU_IRQ_SET, MT6360_IRQ_RETRIG, MT6360_IRQ_RETRIG); -} - -static struct regmap_irq_chip mt6360_pmu_irq_chip = { - .irqs = mt6360_pmu_irqs, - .num_irqs = ARRAY_SIZE(mt6360_pmu_irqs), - .num_regs = MT6360_PMU_IRQ_REGNUM, - .mask_base = MT6360_PMU_CHG_MASK1, - .status_base = MT6360_PMU_CHG_IRQ1, - .ack_base = MT6360_PMU_CHG_IRQ1, +static const struct regmap_irq_chip mt6360_irq_chip = { + .name = "mt6360_irqs", + .irqs = mt6360_irqs, + .num_irqs = ARRAY_SIZE(mt6360_irqs), + .num_regs = MT6360_IRQ_REGNUM, + .mask_base = MT6360_REG_PMU_CHGMASK1, + .status_base = MT6360_REG_PMU_CHGIRQ1, + .ack_base = MT6360_REG_PMU_CHGIRQ1, .init_ack_masked = true, .use_ack = true, - .handle_post_irq = mt6360_pmu_handle_post_irq, -}; - -static const struct regmap_config mt6360_pmu_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - .max_register = MT6360_PMU_MAXREG, }; static const struct resource mt6360_adc_resources[] = { @@ -266,7 +290,7 @@ static const struct resource mt6360_led_resources[] = { DEFINE_RES_IRQ_NAMED(MT6360_FLED1_STRB_TO_EVT, "fled1_strb_to_evt"), }; -static const struct resource mt6360_pmic_resources[] = { +static const struct resource mt6360_regulator_resources[] = { DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_PGB_EVT, "buck1_pgb_evt"), DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_OC_EVT, "buck1_oc_evt"), DEFINE_RES_IRQ_NAMED(MT6360_BUCK1_OV_EVT, "buck1_ov_evt"), @@ -279,9 +303,6 @@ static const struct resource mt6360_pmic_resources[] = { DEFINE_RES_IRQ_NAMED(MT6360_LDO7_OC_EVT, "ldo7_oc_evt"), DEFINE_RES_IRQ_NAMED(MT6360_LDO6_PGB_EVT, "ldo6_pgb_evt"), DEFINE_RES_IRQ_NAMED(MT6360_LDO7_PGB_EVT, "ldo7_pgb_evt"), -}; - -static const struct resource mt6360_ldo_resources[] = { DEFINE_RES_IRQ_NAMED(MT6360_LDO1_OC_EVT, "ldo1_oc_evt"), DEFINE_RES_IRQ_NAMED(MT6360_LDO2_OC_EVT, "ldo2_oc_evt"), DEFINE_RES_IRQ_NAMED(MT6360_LDO3_OC_EVT, "ldo3_oc_evt"), @@ -293,94 +314,245 @@ static const struct resource mt6360_ldo_resources[] = { }; static const struct mfd_cell mt6360_devs[] = { - OF_MFD_CELL("mt6360_adc", mt6360_adc_resources, - NULL, 0, 0, "mediatek,mt6360_adc"), - OF_MFD_CELL("mt6360_chg", mt6360_chg_resources, - NULL, 0, 0, "mediatek,mt6360_chg"), - OF_MFD_CELL("mt6360_led", mt6360_led_resources, - NULL, 0, 0, "mediatek,mt6360_led"), - OF_MFD_CELL("mt6360_pmic", mt6360_pmic_resources, - NULL, 0, 0, "mediatek,mt6360_pmic"), - OF_MFD_CELL("mt6360_ldo", mt6360_ldo_resources, - NULL, 0, 0, "mediatek,mt6360_ldo"), - OF_MFD_CELL("mt6360_tcpc", NULL, - NULL, 0, 0, "mediatek,mt6360_tcpc"), + OF_MFD_CELL("mt6360-adc", mt6360_adc_resources, + NULL, 0, 0, "mediatek,mt6360-adc"), + OF_MFD_CELL("mt6360-chg", mt6360_chg_resources, + NULL, 0, 0, "mediatek,mt6360-chg"), + OF_MFD_CELL("mt6360-led", mt6360_led_resources, + NULL, 0, 0, "mediatek,mt6360-led"), + OF_MFD_CELL("mt6360-regulator", mt6360_regulator_resources, + NULL, 0, 0, "mediatek,mt6360-regulator"), + OF_MFD_CELL("mt6360-tcpc", NULL, + NULL, 0, 0, "mediatek,mt6360-tcpc"), }; -static const unsigned short mt6360_slave_addr[MT6360_SLAVE_MAX] = { - MT6360_PMU_SLAVEID, +static int mt6360_check_vendor_info(struct mt6360_data *data) +{ + u32 info; + int ret; + + ret = regmap_read(data->regmap, MT6360_REG_PMU_DEVINFO, &info); + if (ret < 0) + return ret; + + if ((info & MT6360_CHIPVEN_MASK) != MT6360_CHIPVEN_VAL) + return -ENODEV; + + data->chip_rev = info & MT6360_CHIPREV_MASK; + + return 0; +} + +static const u16 mt6360_slave_addrs[MT6360_SLAVE_MAX] = { + MT6360_TCPC_SLAVEID, MT6360_PMIC_SLAVEID, MT6360_LDO_SLAVEID, - MT6360_TCPC_SLAVEID, + MT6360_PMU_SLAVEID, }; -static int mt6360_pmu_probe(struct i2c_client *client) +static int mt6360_xlate_pmicldo_addr(u8 *addr, int rw_size) { - struct mt6360_pmu_data *mpd; - unsigned int reg_data; - int i, ret; + u8 flags[4] = { 0x00, 0x40, 0x80, 0xc0 }; + + if (rw_size < 1 || rw_size > 4) + return -EINVAL; - mpd = devm_kzalloc(&client->dev, sizeof(*mpd), GFP_KERNEL); - if (!mpd) + *addr &= 0x3f; + *addr |= flags[rw_size - 1]; + + return 0; +} + +static int mt6360_regmap_read(void *context, const void *reg, size_t reg_size, + void *val, size_t val_size) +{ + struct mt6360_data *data = context; + u8 bank = *(u8 *)reg, reg_addr = *(u8 *)(reg + 1); + struct i2c_client *i2c = data->i2c[bank]; + bool crc_needed = false; + u8 *buf; + /* first two is i2c_addr + reg_addr , last is crc8 */ + int alloc_size = 2 + val_size + 1, read_size = val_size; + u8 crc; + int ret; + + if (bank == MT6360_SLAVE_PMIC || bank == MT6360_SLAVE_LDO) { + crc_needed = true; + ret = mt6360_xlate_pmicldo_addr(®_addr, val_size); + if (ret < 0) + return ret; + read_size += 1; + } + + buf = kzalloc(alloc_size, GFP_KERNEL); + if (!buf) return -ENOMEM; - mpd->dev = &client->dev; - i2c_set_clientdata(client, mpd); + /* 7 bit slave addr + read bit */ + buf[0] = ((i2c->addr & 0x7f) << 1) + 1; + buf[1] = reg_addr; - mpd->regmap = devm_regmap_init_i2c(client, &mt6360_pmu_regmap_config); - if (IS_ERR(mpd->regmap)) { - dev_err(&client->dev, "Failed to register regmap\n"); - return PTR_ERR(mpd->regmap); + ret = i2c_smbus_read_i2c_block_data(i2c, reg_addr, read_size, buf + 2); + + if (ret == read_size) { + memcpy(val, buf + 2, val_size); + if (crc_needed) { + crc = crc8(data->crc8_tbl, buf, val_size + 2, 0); + if (crc != buf[val_size + 2]) + ret = -EIO; + } } - ret = regmap_read(mpd->regmap, MT6360_PMU_DEV_INFO, ®_data); - if (ret) { - dev_err(&client->dev, "Device not found\n"); + kfree(buf); + + if (ret < 0) return ret; + else if (ret != read_size) + return -EIO; + + return 0; +} + +static int mt6360_regmap_write(void *context, const void *val, size_t val_size) +{ + struct mt6360_data *data = context; + u8 bank = *(u8 *)val, reg_addr = *(u8 *)(val + 1); + struct i2c_client *i2c = data->i2c[bank]; + bool crc_needed = false; + u8 *buf; + /* first two is i2c_addr + reg_addr , last crc8 + dummy */ + int alloc_size = 2 + val_size + 2, write_size = val_size - 2; + int ret; + + if (bank == MT6360_SLAVE_PMIC || bank == MT6360_SLAVE_LDO) { + crc_needed = true; + ret = mt6360_xlate_pmicldo_addr(®_addr, val_size - 2); + if (ret < 0) + return ret; } - mpd->chip_rev = reg_data & CHIP_REV_MASK; - if (mpd->chip_rev != CHIP_VEN_MT6360) { - dev_err(&client->dev, "Device not supported\n"); - return -ENODEV; + buf = kzalloc(alloc_size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + /* 7 bit slave addr + write bit */ + buf[0] = ((i2c->addr & 0x7f) << 1); + buf[1] = reg_addr; + /* val need to minus regaddr 16bit */ + memcpy(buf + 2, val + 2, write_size); + + if (crc_needed) { + buf[val_size] = crc8(data->crc8_tbl, buf, val_size, 0); + write_size += 2; } - mt6360_pmu_irq_chip.irq_drv_data = mpd; - ret = devm_regmap_add_irq_chip(&client->dev, mpd->regmap, client->irq, - IRQF_TRIGGER_FALLING, 0, - &mt6360_pmu_irq_chip, &mpd->irq_data); - if (ret) { - dev_err(&client->dev, "Failed to add Regmap IRQ Chip\n"); + ret = i2c_smbus_write_i2c_block_data(i2c, + reg_addr, write_size, buf + 2); + + kfree(buf); + + if (ret < 0) return ret; + + return 0; +} + +static const struct regmap_bus mt6360_regmap_bus = { + .read = mt6360_regmap_read, + .write = mt6360_regmap_write, + + /* due to pmic and ldo crc access size limit */ + .max_raw_read = 4, + .max_raw_write = 4, +}; + +static bool mt6360_is_readwrite_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case MT6360_REG_TCPCSTART ... MT6360_REG_TCPCEND: + case MT6360_REG_PMICSTART ... MT6360_REG_PMICEND: + case MT6360_REG_LDOSTART ... MT6360_REG_LDOEND: + fallthrough; + case MT6360_REG_PMUSTART ... MT6360_REG_PMUEND: + return true; } - mpd->i2c[0] = client; - for (i = 1; i < MT6360_SLAVE_MAX; i++) { - mpd->i2c[i] = devm_i2c_new_dummy_device(&client->dev, - client->adapter, - mt6360_slave_addr[i]); - if (IS_ERR(mpd->i2c[i])) { + return false; +} + +static const struct regmap_config mt6360_regmap_config = { + .reg_bits = 16, + .val_bits = 8, + + .reg_format_endian = REGMAP_ENDIAN_BIG, + + /* bank1:tcpc, bank2:pmic, bank3:ldo, bank4:pmu */ + .max_register = MT6360_REG_PMUEND, + .writeable_reg = mt6360_is_readwrite_reg, + .readable_reg = mt6360_is_readwrite_reg, +}; + +static int mt6360_probe(struct i2c_client *client) +{ + struct mt6360_data *data; + int i, ret; + + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->dev = &client->dev; + crc8_populate_msb(data->crc8_tbl, 0x7); + + for (i = 0; i < MT6360_SLAVE_PMU; i++) { + data->i2c[i] = devm_i2c_new_dummy_device(&client->dev, + client->adapter, + mt6360_slave_addrs[i]); + if (IS_ERR(data->i2c[i])) { dev_err(&client->dev, "Failed to get new dummy I2C device for address 0x%x", - mt6360_slave_addr[i]); - return PTR_ERR(mpd->i2c[i]); + mt6360_slave_addrs[i]); + return PTR_ERR(data->i2c[i]); } - i2c_set_clientdata(mpd->i2c[i], mpd); + } + data->i2c[MT6360_SLAVE_PMU] = client; + + data->regmap = devm_regmap_init(&client->dev, &mt6360_regmap_bus, + data, &mt6360_regmap_config); + if (IS_ERR(data->regmap)) { + dev_err(&client->dev, "Failed to register regmap\n"); + return PTR_ERR(data->regmap); + } + + ret = mt6360_check_vendor_info(data); + if (ret) { + dev_err(&client->dev, "Device not supported\n"); + return ret; + } + + ret = devm_regmap_add_irq_chip(&client->dev, data->regmap, client->irq, + IRQF_ONESHOT, 0, &mt6360_irq_chip, + &data->irq_data); + if (ret) { + dev_err(&client->dev, "Failed to add Regmap IRQ Chip\n"); + return ret; } ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_AUTO, mt6360_devs, ARRAY_SIZE(mt6360_devs), NULL, - 0, regmap_irq_get_domain(mpd->irq_data)); + 0, regmap_irq_get_domain(data->irq_data)); if (ret) { dev_err(&client->dev, "Failed to register subordinate devices\n"); return ret; } + i2c_set_clientdata(client, data); + return 0; } -static int __maybe_unused mt6360_pmu_suspend(struct device *dev) +static int __maybe_unused mt6360_suspend(struct device *dev) { struct i2c_client *i2c = to_i2c_client(dev); @@ -390,7 +562,7 @@ static int __maybe_unused mt6360_pmu_suspend(struct device *dev) return 0; } -static int __maybe_unused mt6360_pmu_resume(struct device *dev) +static int __maybe_unused mt6360_resume(struct device *dev) { struct i2c_client *i2c = to_i2c_client(dev); @@ -401,25 +573,24 @@ static int __maybe_unused mt6360_pmu_resume(struct device *dev) return 0; } -static SIMPLE_DEV_PM_OPS(mt6360_pmu_pm_ops, - mt6360_pmu_suspend, mt6360_pmu_resume); +static SIMPLE_DEV_PM_OPS(mt6360_pm_ops, mt6360_suspend, mt6360_resume); -static const struct of_device_id __maybe_unused mt6360_pmu_of_id[] = { - { .compatible = "mediatek,mt6360_pmu", }, +static const struct of_device_id __maybe_unused mt6360_of_id[] = { + { .compatible = "mediatek,mt6360", }, {}, }; -MODULE_DEVICE_TABLE(of, mt6360_pmu_of_id); +MODULE_DEVICE_TABLE(of, mt6360_of_id); -static struct i2c_driver mt6360_pmu_driver = { +static struct i2c_driver mt6360_driver = { .driver = { - .name = "mt6360_pmu", - .pm = &mt6360_pmu_pm_ops, - .of_match_table = of_match_ptr(mt6360_pmu_of_id), + .name = "mt6360", + .pm = &mt6360_pm_ops, + .of_match_table = of_match_ptr(mt6360_of_id), }, - .probe_new = mt6360_pmu_probe, + .probe_new = mt6360_probe, }; -module_i2c_driver(mt6360_pmu_driver); +module_i2c_driver(mt6360_driver); MODULE_AUTHOR("Gene Chen "); -MODULE_DESCRIPTION("MT6360 PMU I2C Driver"); +MODULE_DESCRIPTION("MT6360 I2C Driver"); MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/mt6360.h b/include/linux/mfd/mt6360.h deleted file mode 100644 index ea13040..0000000 --- a/include/linux/mfd/mt6360.h +++ /dev/null @@ -1,240 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (c) 2020 MediaTek Inc. - */ - -#ifndef __MT6360_H__ -#define __MT6360_H__ - -#include - -enum { - MT6360_SLAVE_PMU = 0, - MT6360_SLAVE_PMIC, - MT6360_SLAVE_LDO, - MT6360_SLAVE_TCPC, - MT6360_SLAVE_MAX, -}; - -#define MT6360_PMU_SLAVEID (0x34) -#define MT6360_PMIC_SLAVEID (0x1A) -#define MT6360_LDO_SLAVEID (0x64) -#define MT6360_TCPC_SLAVEID (0x4E) - -struct mt6360_pmu_data { - struct i2c_client *i2c[MT6360_SLAVE_MAX]; - struct device *dev; - struct regmap *regmap; - struct regmap_irq_chip_data *irq_data; - unsigned int chip_rev; -}; - -/* PMU register defininition */ -#define MT6360_PMU_DEV_INFO (0x00) -#define MT6360_PMU_CORE_CTRL1 (0x01) -#define MT6360_PMU_RST1 (0x02) -#define MT6360_PMU_CRCEN (0x03) -#define MT6360_PMU_RST_PAS_CODE1 (0x04) -#define MT6360_PMU_RST_PAS_CODE2 (0x05) -#define MT6360_PMU_CORE_CTRL2 (0x06) -#define MT6360_PMU_TM_PAS_CODE1 (0x07) -#define MT6360_PMU_TM_PAS_CODE2 (0x08) -#define MT6360_PMU_TM_PAS_CODE3 (0x09) -#define MT6360_PMU_TM_PAS_CODE4 (0x0A) -#define MT6360_PMU_IRQ_IND (0x0B) -#define MT6360_PMU_IRQ_MASK (0x0C) -#define MT6360_PMU_IRQ_SET (0x0D) -#define MT6360_PMU_SHDN_CTRL (0x0E) -#define MT6360_PMU_TM_INF (0x0F) -#define MT6360_PMU_I2C_CTRL (0x10) -#define MT6360_PMU_CHG_CTRL1 (0x11) -#define MT6360_PMU_CHG_CTRL2 (0x12) -#define MT6360_PMU_CHG_CTRL3 (0x13) -#define MT6360_PMU_CHG_CTRL4 (0x14) -#define MT6360_PMU_CHG_CTRL5 (0x15) -#define MT6360_PMU_CHG_CTRL6 (0x16) -#define MT6360_PMU_CHG_CTRL7 (0x17) -#define MT6360_PMU_CHG_CTRL8 (0x18) -#define MT6360_PMU_CHG_CTRL9 (0x19) -#define MT6360_PMU_CHG_CTRL10 (0x1A) -#define MT6360_PMU_CHG_CTRL11 (0x1B) -#define MT6360_PMU_CHG_CTRL12 (0x1C) -#define MT6360_PMU_CHG_CTRL13 (0x1D) -#define MT6360_PMU_CHG_CTRL14 (0x1E) -#define MT6360_PMU_CHG_CTRL15 (0x1F) -#define MT6360_PMU_CHG_CTRL16 (0x20) -#define MT6360_PMU_CHG_AICC_RESULT (0x21) -#define MT6360_PMU_DEVICE_TYPE (0x22) -#define MT6360_PMU_QC_CONTROL1 (0x23) -#define MT6360_PMU_QC_CONTROL2 (0x24) -#define MT6360_PMU_QC30_CONTROL1 (0x25) -#define MT6360_PMU_QC30_CONTROL2 (0x26) -#define MT6360_PMU_USB_STATUS1 (0x27) -#define MT6360_PMU_QC_STATUS1 (0x28) -#define MT6360_PMU_QC_STATUS2 (0x29) -#define MT6360_PMU_CHG_PUMP (0x2A) -#define MT6360_PMU_CHG_CTRL17 (0x2B) -#define MT6360_PMU_CHG_CTRL18 (0x2C) -#define MT6360_PMU_CHRDET_CTRL1 (0x2D) -#define MT6360_PMU_CHRDET_CTRL2 (0x2E) -#define MT6360_PMU_DPDN_CTRL (0x2F) -#define MT6360_PMU_CHG_HIDDEN_CTRL1 (0x30) -#define MT6360_PMU_CHG_HIDDEN_CTRL2 (0x31) -#define MT6360_PMU_CHG_HIDDEN_CTRL3 (0x32) -#define MT6360_PMU_CHG_HIDDEN_CTRL4 (0x33) -#define MT6360_PMU_CHG_HIDDEN_CTRL5 (0x34) -#define MT6360_PMU_CHG_HIDDEN_CTRL6 (0x35) -#define MT6360_PMU_CHG_HIDDEN_CTRL7 (0x36) -#define MT6360_PMU_CHG_HIDDEN_CTRL8 (0x37) -#define MT6360_PMU_CHG_HIDDEN_CTRL9 (0x38) -#define MT6360_PMU_CHG_HIDDEN_CTRL10 (0x39) -#define MT6360_PMU_CHG_HIDDEN_CTRL11 (0x3A) -#define MT6360_PMU_CHG_HIDDEN_CTRL12 (0x3B) -#define MT6360_PMU_CHG_HIDDEN_CTRL13 (0x3C) -#define MT6360_PMU_CHG_HIDDEN_CTRL14 (0x3D) -#define MT6360_PMU_CHG_HIDDEN_CTRL15 (0x3E) -#define MT6360_PMU_CHG_HIDDEN_CTRL16 (0x3F) -#define MT6360_PMU_CHG_HIDDEN_CTRL17 (0x40) -#define MT6360_PMU_CHG_HIDDEN_CTRL18 (0x41) -#define MT6360_PMU_CHG_HIDDEN_CTRL19 (0x42) -#define MT6360_PMU_CHG_HIDDEN_CTRL20 (0x43) -#define MT6360_PMU_CHG_HIDDEN_CTRL21 (0x44) -#define MT6360_PMU_CHG_HIDDEN_CTRL22 (0x45) -#define MT6360_PMU_CHG_HIDDEN_CTRL23 (0x46) -#define MT6360_PMU_CHG_HIDDEN_CTRL24 (0x47) -#define MT6360_PMU_CHG_HIDDEN_CTRL25 (0x48) -#define MT6360_PMU_BC12_CTRL (0x49) -#define MT6360_PMU_CHG_STAT (0x4A) -#define MT6360_PMU_RESV1 (0x4B) -#define MT6360_PMU_TYPEC_OTP_TH_SEL_CODEH (0x4E) -#define MT6360_PMU_TYPEC_OTP_TH_SEL_CODEL (0x4F) -#define MT6360_PMU_TYPEC_OTP_HYST_TH (0x50) -#define MT6360_PMU_TYPEC_OTP_CTRL (0x51) -#define MT6360_PMU_ADC_BAT_DATA_H (0x52) -#define MT6360_PMU_ADC_BAT_DATA_L (0x53) -#define MT6360_PMU_IMID_BACKBST_ON (0x54) -#define MT6360_PMU_IMID_BACKBST_OFF (0x55) -#define MT6360_PMU_ADC_CONFIG (0x56) -#define MT6360_PMU_ADC_EN2 (0x57) -#define MT6360_PMU_ADC_IDLE_T (0x58) -#define MT6360_PMU_ADC_RPT_1 (0x5A) -#define MT6360_PMU_ADC_RPT_2 (0x5B) -#define MT6360_PMU_ADC_RPT_3 (0x5C) -#define MT6360_PMU_ADC_RPT_ORG1 (0x5D) -#define MT6360_PMU_ADC_RPT_ORG2 (0x5E) -#define MT6360_PMU_BAT_OVP_TH_SEL_CODEH (0x5F) -#define MT6360_PMU_BAT_OVP_TH_SEL_CODEL (0x60) -#define MT6360_PMU_CHG_CTRL19 (0x61) -#define MT6360_PMU_VDDASUPPLY (0x62) -#define MT6360_PMU_BC12_MANUAL (0x63) -#define MT6360_PMU_CHGDET_FUNC (0x64) -#define MT6360_PMU_FOD_CTRL (0x65) -#define MT6360_PMU_CHG_CTRL20 (0x66) -#define MT6360_PMU_CHG_HIDDEN_CTRL26 (0x67) -#define MT6360_PMU_CHG_HIDDEN_CTRL27 (0x68) -#define MT6360_PMU_RESV2 (0x69) -#define MT6360_PMU_USBID_CTRL1 (0x6D) -#define MT6360_PMU_USBID_CTRL2 (0x6E) -#define MT6360_PMU_USBID_CTRL3 (0x6F) -#define MT6360_PMU_FLED_CFG (0x70) -#define MT6360_PMU_RESV3 (0x71) -#define MT6360_PMU_FLED1_CTRL (0x72) -#define MT6360_PMU_FLED_STRB_CTRL (0x73) -#define MT6360_PMU_FLED1_STRB_CTRL2 (0x74) -#define MT6360_PMU_FLED1_TOR_CTRL (0x75) -#define MT6360_PMU_FLED2_CTRL (0x76) -#define MT6360_PMU_RESV4 (0x77) -#define MT6360_PMU_FLED2_STRB_CTRL2 (0x78) -#define MT6360_PMU_FLED2_TOR_CTRL (0x79) -#define MT6360_PMU_FLED_VMIDTRK_CTRL1 (0x7A) -#define MT6360_PMU_FLED_VMID_RTM (0x7B) -#define MT6360_PMU_FLED_VMIDTRK_CTRL2 (0x7C) -#define MT6360_PMU_FLED_PWSEL (0x7D) -#define MT6360_PMU_FLED_EN (0x7E) -#define MT6360_PMU_FLED_Hidden1 (0x7F) -#define MT6360_PMU_RGB_EN (0x80) -#define MT6360_PMU_RGB1_ISNK (0x81) -#define MT6360_PMU_RGB2_ISNK (0x82) -#define MT6360_PMU_RGB3_ISNK (0x83) -#define MT6360_PMU_RGB_ML_ISNK (0x84) -#define MT6360_PMU_RGB1_DIM (0x85) -#define MT6360_PMU_RGB2_DIM (0x86) -#define MT6360_PMU_RGB3_DIM (0x87) -#define MT6360_PMU_RESV5 (0x88) -#define MT6360_PMU_RGB12_Freq (0x89) -#define MT6360_PMU_RGB34_Freq (0x8A) -#define MT6360_PMU_RGB1_Tr (0x8B) -#define MT6360_PMU_RGB1_Tf (0x8C) -#define MT6360_PMU_RGB1_TON_TOFF (0x8D) -#define MT6360_PMU_RGB2_Tr (0x8E) -#define MT6360_PMU_RGB2_Tf (0x8F) -#define MT6360_PMU_RGB2_TON_TOFF (0x90) -#define MT6360_PMU_RGB3_Tr (0x91) -#define MT6360_PMU_RGB3_Tf (0x92) -#define MT6360_PMU_RGB3_TON_TOFF (0x93) -#define MT6360_PMU_RGB_Hidden_CTRL1 (0x94) -#define MT6360_PMU_RGB_Hidden_CTRL2 (0x95) -#define MT6360_PMU_RESV6 (0x97) -#define MT6360_PMU_SPARE1 (0x9A) -#define MT6360_PMU_SPARE2 (0xA0) -#define MT6360_PMU_SPARE3 (0xB0) -#define MT6360_PMU_SPARE4 (0xC0) -#define MT6360_PMU_CHG_IRQ1 (0xD0) -#define MT6360_PMU_CHG_IRQ2 (0xD1) -#define MT6360_PMU_CHG_IRQ3 (0xD2) -#define MT6360_PMU_CHG_IRQ4 (0xD3) -#define MT6360_PMU_CHG_IRQ5 (0xD4) -#define MT6360_PMU_CHG_IRQ6 (0xD5) -#define MT6360_PMU_QC_IRQ (0xD6) -#define MT6360_PMU_FOD_IRQ (0xD7) -#define MT6360_PMU_BASE_IRQ (0xD8) -#define MT6360_PMU_FLED_IRQ1 (0xD9) -#define MT6360_PMU_FLED_IRQ2 (0xDA) -#define MT6360_PMU_RGB_IRQ (0xDB) -#define MT6360_PMU_BUCK1_IRQ (0xDC) -#define MT6360_PMU_BUCK2_IRQ (0xDD) -#define MT6360_PMU_LDO_IRQ1 (0xDE) -#define MT6360_PMU_LDO_IRQ2 (0xDF) -#define MT6360_PMU_CHG_STAT1 (0xE0) -#define MT6360_PMU_CHG_STAT2 (0xE1) -#define MT6360_PMU_CHG_STAT3 (0xE2) -#define MT6360_PMU_CHG_STAT4 (0xE3) -#define MT6360_PMU_CHG_STAT5 (0xE4) -#define MT6360_PMU_CHG_STAT6 (0xE5) -#define MT6360_PMU_QC_STAT (0xE6) -#define MT6360_PMU_FOD_STAT (0xE7) -#define MT6360_PMU_BASE_STAT (0xE8) -#define MT6360_PMU_FLED_STAT1 (0xE9) -#define MT6360_PMU_FLED_STAT2 (0xEA) -#define MT6360_PMU_RGB_STAT (0xEB) -#define MT6360_PMU_BUCK1_STAT (0xEC) -#define MT6360_PMU_BUCK2_STAT (0xED) -#define MT6360_PMU_LDO_STAT1 (0xEE) -#define MT6360_PMU_LDO_STAT2 (0xEF) -#define MT6360_PMU_CHG_MASK1 (0xF0) -#define MT6360_PMU_CHG_MASK2 (0xF1) -#define MT6360_PMU_CHG_MASK3 (0xF2) -#define MT6360_PMU_CHG_MASK4 (0xF3) -#define MT6360_PMU_CHG_MASK5 (0xF4) -#define MT6360_PMU_CHG_MASK6 (0xF5) -#define MT6360_PMU_QC_MASK (0xF6) -#define MT6360_PMU_FOD_MASK (0xF7) -#define MT6360_PMU_BASE_MASK (0xF8) -#define MT6360_PMU_FLED_MASK1 (0xF9) -#define MT6360_PMU_FLED_MASK2 (0xFA) -#define MT6360_PMU_FAULTB_MASK (0xFB) -#define MT6360_PMU_BUCK1_MASK (0xFC) -#define MT6360_PMU_BUCK2_MASK (0xFD) -#define MT6360_PMU_LDO_MASK1 (0xFE) -#define MT6360_PMU_LDO_MASK2 (0xFF) -#define MT6360_PMU_MAXREG (MT6360_PMU_LDO_MASK2) - -/* MT6360_PMU_IRQ_SET */ -#define MT6360_PMU_IRQ_REGNUM (MT6360_PMU_LDO_IRQ2 - MT6360_PMU_CHG_IRQ1 + 1) -#define MT6360_IRQ_RETRIG BIT(2) - -#define CHIP_VEN_MASK (0xF0) -#define CHIP_VEN_MT6360 (0x50) -#define CHIP_REV_MASK (0x0F) - -#endif /* __MT6360_H__ */