diff options
Diffstat (limited to 'drivers/power/pmic')
| -rw-r--r-- | drivers/power/pmic/rk8xx.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/power/pmic/rk8xx.c b/drivers/power/pmic/rk8xx.c index 4e3a17337ee..3a8261d1749 100644 --- a/drivers/power/pmic/rk8xx.c +++ b/drivers/power/pmic/rk8xx.c @@ -9,8 +9,10 @@ #include <dm/lists.h> #include <errno.h> #include <log.h> +#include <linux/bitfield.h> #include <power/rk8xx_pmic.h> #include <power/pmic.h> +#include <spi.h> #include <sysreset.h> static int rk8xx_sysreset_request(struct udevice *dev, enum sysreset_t type) @@ -32,6 +34,10 @@ static int rk8xx_sysreset_request(struct udevice *dev, enum sysreset_t type) pmic_clrsetbits(dev->parent, RK817_REG_SYS_CFG3, 0, BIT(0)); break; + case RK806_ID: + pmic_clrsetbits(dev->parent, RK806_REG_SYS_CFG3, 0, + BIT(0)); + break; default: printf("Unknown PMIC RK%x: Cannot shutdown\n", priv->variant); @@ -83,6 +89,11 @@ void rk8xx_off_for_plugin(struct udevice *dev) } } +static struct reg_data rk806_init_reg[] = { + /* RST_FUN */ + { RK806_REG_SYS_CFG3, GENMASK(7, 6), BIT(7)}, +}; + static struct reg_data rk817_init_reg[] = { /* enable the under-voltage protection, * the under-voltage protection will shutdown the LDO3 and reset the PMIC @@ -92,7 +103,10 @@ static struct reg_data rk817_init_reg[] = { static const struct pmic_child_info pmic_children_info[] = { { .prefix = "DCDC_REG", .driver = "rk8xx_buck"}, + { .prefix = "dcdc-reg", .driver = "rk8xx_buck"}, { .prefix = "LDO_REG", .driver = "rk8xx_ldo"}, + { .prefix = "nldo-reg", .driver = "rk8xx_nldo"}, + { .prefix = "pldo-reg", .driver = "rk8xx_pldo"}, { .prefix = "SWITCH_REG", .driver = "rk8xx_switch"}, { }, }; @@ -102,11 +116,51 @@ static int rk8xx_reg_count(struct udevice *dev) return RK808_NUM_OF_REGS; } +#if CONFIG_IS_ENABLED(SPI) && CONFIG_IS_ENABLED(DM_SPI) +struct rk806_cmd { + uint8_t len: 4; /* Payload size in bytes - 1 */ + uint8_t reserved: 2; + uint8_t crc_en: 1; + uint8_t op: 1; /* READ=0; WRITE=1; */ + uint8_t reg_l; +#define REG_L_MASK GENMASK(7, 0) + uint8_t reg_h; +#define REG_H_MASK GENMASK(15, 8) +}; +#endif + static int rk8xx_write(struct udevice *dev, uint reg, const uint8_t *buff, int len) { int ret; +#if CONFIG_IS_ENABLED(SPI) && CONFIG_IS_ENABLED(DM_SPI) + if (device_get_uclass_id(dev->parent) == UCLASS_SPI) { + struct spi_slave *spi = dev_get_parent_priv(dev); + struct rk806_cmd cmd = { + .op = 1, + .len = len - 1, + .reg_l = FIELD_GET(REG_L_MASK, reg), + .reg_h = FIELD_GET(REG_H_MASK, reg), + }; + + ret = dm_spi_claim_bus(dev); + if (ret) { + debug("Couldn't claim bus for device: %p!\n", dev); + return ret; + } + + ret = spi_write_then_read(spi, (u8 *)&cmd, sizeof(cmd), buff, NULL, len); + if (ret) + debug("write error to device: %p register: %#x!\n", + dev, reg); + + dm_spi_release_bus(dev); + + return ret; + } +#endif + ret = dm_i2c_write(dev, reg, buff, len); if (ret) { debug("write error to device: %p register: %#x!\n", dev, reg); @@ -120,6 +174,33 @@ static int rk8xx_read(struct udevice *dev, uint reg, uint8_t *buff, int len) { int ret; +#if CONFIG_IS_ENABLED(SPI) && CONFIG_IS_ENABLED(DM_SPI) + if (device_get_uclass_id(dev->parent) == UCLASS_SPI) { + struct spi_slave *spi = dev_get_parent_priv(dev); + struct rk806_cmd cmd = { + .op = 0, + .len = len - 1, + .reg_l = FIELD_GET(REG_L_MASK, reg), + .reg_h = FIELD_GET(REG_H_MASK, reg), + }; + + ret = dm_spi_claim_bus(dev); + if (ret) { + debug("Couldn't claim bus for device: %p!\n", dev); + return ret; + } + + ret = spi_write_then_read(spi, (u8 *)&cmd, sizeof(cmd), NULL, buff, len); + if (ret) + debug("read error to device: %p register: %#x!\n", + dev, reg); + + dm_spi_release_bus(dev); + + return ret; + } +#endif + ret = dm_i2c_read(dev, reg, buff, len); if (ret) { debug("read error from device: %p register: %#x!\n", dev, reg); @@ -181,6 +262,9 @@ static int rk8xx_probe(struct udevice *dev) device_is_compatible(dev, "rockchip,rk809")) { id_msb = RK817_ID_MSB; id_lsb = RK817_ID_LSB; + } else if (device_is_compatible(dev, "rockchip,rk806")) { + id_msb = RK806_ID_MSB; + id_lsb = RK806_ID_LSB; } else { id_msb = ID_MSB; id_lsb = ID_LSB; @@ -221,6 +305,12 @@ static int rk8xx_probe(struct udevice *dev) value = (power_en2 & 0x0f) | ((power_en3 & 0x0f) << 4); pmic_reg_write(dev, RK817_POWER_EN_SAVE1, value); break; + case RK806_ID: + on_source = RK806_ON_SOURCE; + off_source = RK806_OFF_SOURCE; + init_data = rk806_init_reg; + init_data_num = ARRAY_SIZE(rk806_init_reg); + break; default: printf("Unknown PMIC: RK%x!!\n", priv->variant); return -EINVAL; @@ -263,6 +353,7 @@ static struct dm_pmic_ops rk8xx_ops = { static const struct udevice_id rk8xx_ids[] = { { .compatible = "rockchip,rk805" }, + { .compatible = "rockchip,rk806" }, { .compatible = "rockchip,rk808" }, { .compatible = "rockchip,rk809" }, { .compatible = "rockchip,rk816" }, |