[PATCH] lib: utils/i2c: update i2c interface
Xiang W
wxjstz at 126.com
Thu Dec 30 04:47:43 PST 2021
在 2021-12-30星期四的 12:29 +0300，Nikita Shubin写道：
> Hello Xiang!
>
> Thank you for your patch.
>
> On Thu, 30 Dec 2021 01:39:09 +0800
> Xiang W <wxjstz at 126.com> wrote:
>
> > 1. Remove i2c register related operations
> > 2. Simplify the low-level interface
> > 3. Add 10bit address support
> > 4. Add combination operation
> > 5. Update fdt_i2c_sifive.c
> > 6. Update sifive_fu740.c
> >
>
> First of all my Unmatched board no longer reboots with your patch
> applied:
>
> [ 53.068656] reboot: Restarting system
> da9063_system_reset: chip is not da9063 PMIC
>
> What kind of hardware are you using currently ?
I have a piece of Unmatched, which cannot be restarted, and opensbi v1.0
also cannot be restarted. I even commented
da9063_read_reg/da9063_write_reg and there is no change.
>
> In general i think raw read/write possibility is really needed, but
> this kind of functionality can be achieved with flags without exposing
> all this stuff in i2c.c,
>
> I was thinking on something like "struct i2c_msg" Linux have:
>
>
> https://elixir.bootlin.com/linux/v5.16-rc7/source/include/uapi/linux/i2c.h#L73
>
> We can still read/write a byte with this, ask for nostop and nack -
> can't we ?
>
> Please see my comments below:
>
> > Signed-off-by: Xiang W <wxjstz at 126.com>
> > ---
> > include/sbi_utils/i2c/i2c.h | 80 ++++++++++----------
> > lib/utils/i2c/fdt_i2c_sifive.c | 130
> > +++++++++----------------------- lib/utils/i2c/i2c.c |
> > 123 ++++++++++++++++++++++++++---- platform/generic/sifive_fu740.c |
> > 31 ++++++-- 4 files changed, 208 insertions(+), 156 deletions(-)
> >
> > diff --git a/include/sbi_utils/i2c/i2c.h
> > b/include/sbi_utils/i2c/i2c.h
> > index 5a70364..53e76e3 100644
> > --- a/include/sbi_utils/i2c/i2c.h
> > +++ b/include/sbi_utils/i2c/i2c.h
> > @@ -13,6 +13,11 @@
> > #include <sbi/sbi_types.h>
> > #include <sbi/sbi_list.h>
> >
> > +enum i2c_op {
> > + I2C_OP_W = 0,
> > + I2C_OP_R = 1
> > +};
> > +
> > /** Representation of a I2C adapter */
> > struct i2c_adapter {
> > /** Pointer to I2C driver owning this I2C adapter */
> > @@ -21,21 +26,11 @@ struct i2c_adapter {
> > /** Unique ID of the I2C adapter assigned by the driver */
> > int id;
> >
> > - /**
> > - * Send buffer to given address, register
> > - *
> > - * @return 0 on success and negative error code on failure
> > - */
> > - int (*write)(struct i2c_adapter *ia, uint8_t addr, uint8_t
> > reg,
> > - uint8_t *buffer, int len);
> > -
> > - /**
> > - * Read buffer from given address, register
> > - *
> > - * @return 0 on success and negative error code on failure
> > - */
> > - int (*read)(struct i2c_adapter *ia, uint8_t addr, uint8_t
> > reg,
> > - uint8_t *buffer, int len);
> > + int (*write_byte)(struct i2c_adapter *ia, uint8_t byte,
> > + bool send_start, bool send_stop);
> > +
> > + int (*read_byte)(struct i2c_adapter *ia, uint8_t *byte,
> > + bool nack, bool send_stop);
> >
>
> Can't we use flags for bool nack, bool send_stop ?
You mean to modify the interface to：
int (*write_byte)(struct i2c_adapter *ia, uint8_t byte, int flags);
int (*read_byte)(struct i2c_adapter *ia, uint8_t *byte, int flags);
???
>
>
> > /** List */
> > struct sbi_dlist node;
> > @@ -46,6 +41,13 @@ static inline struct i2c_adapter
> > *to_i2c_adapter(struct sbi_dlist *node) return container_of(node,
> > struct i2c_adapter, node); }
> >
> > +/**
> > + * This function is used to pack a 10bit address into a 15-bit
> > address.
> > + * The 10bit address during read and write operations needs to be
> > processed by
> > + * this function.
> > + * */
> > +unsigned i2c_10bit_address(unsigned addr);
> > +
> > /** Find a registered I2C adapter */
> > struct i2c_adapter *i2c_adapter_find(int id);
> >
> > @@ -55,31 +57,27 @@ int i2c_adapter_add(struct i2c_adapter *ia);
> > /** Un-register I2C adapter */
> > void i2c_adapter_remove(struct i2c_adapter *ia);
> >
> > -/** Send to device on I2C adapter bus */
> > -int i2c_adapter_write(struct i2c_adapter *ia, uint8_t addr, uint8_t
> > reg,
> > - uint8_t *buffer, int len);
> > -
> > -/** Read from device on I2C adapter bus */
> > -int i2c_adapter_read(struct i2c_adapter *ia, uint8_t addr, uint8_t
> > reg,
> > - uint8_t *buffer, int len);
> > -
> > -static inline int i2c_adapter_reg_write(struct i2c_adapter *ia,
> > uint8_t addr,
> > - uint8_t reg, uint8_t val)
> > -{
> > - return i2c_adapter_write(ia, addr, reg, &val, 1);
> > -}
> > -
> > -static inline int i2c_adapter_reg_read(struct i2c_adapter *ia,
> > uint8_t addr,
> > - uint8_t reg, uint8_t *val)
> > -{
> > - uint8_t buf;
> > - int ret = i2c_adapter_read(ia, addr, reg, &buf, 1);
> > -
> > - if (ret)
> > - return ret;
> > -
> > - *val = buf;
> > - return 0;
> > -}
> > +/**
> > + * Read data from the device with address addr to buff
> > + * For 10bit address operation, addr = i2c_10bit_address
> > (orig_addr)
> > +*/
> > +int i2c_adapter_read(struct i2c_adapter *ia, unsigned addr,
> > + uint8_t *buff, unsigned len);
> > +
> > +/**
> > + * Write buff data to the device with address addr
> > + * For 10bit address operation, addr = i2c_10bit_address
> > (orig_addr)
> > +*/
> > +int i2c_adapter_write(struct i2c_adapter *ia, unsigned addr,
> > + uint8_t *buff, unsigned len);
> > +
> > +/**
> > + * Combined operation, there is no stop signal between two iic
> > operations
> > + * For 10bit address operation, addr = i2c_10bit_address
> > (orig_addr)
> > + * op0 and op1 can only be I2C_OP_R (read operate) or I2C_OP_W
> > (write operate)
> > + */
> > +int i2c_adapter_comb(struct i2c_adapter *ia, unsigned addr,
> > + enum i2c_op op0, uint8_t *buff0, unsigned len0,
> > + enum i2c_op op1, uint8_t *buff1, unsigned len1);
> >
>
> Why should we need this, if you already exposed bool nack, bool
> send_stop in read_byte, write_byte ?
Please refer https://www.nxp.com/docs/en/user-guide/UM10204.pdf
Figure 13
The previous interface i2c_adapter_reg_read is a combined format.
Regards,
Xiang W
>
> > #endif
> > diff --git a/lib/utils/i2c/fdt_i2c_sifive.c
> > b/lib/utils/i2c/fdt_i2c_sifive.c index 871241a..bb0456f 100644
> > --- a/lib/utils/i2c/fdt_i2c_sifive.c
> > +++ b/lib/utils/i2c/fdt_i2c_sifive.c
> > @@ -113,127 +113,71 @@ static int sifive_i2c_adapter_start(struct
> > sifive_i2c_adapter *adap, return sifive_i2c_adapter_poll_tip(adap);
> > }
> >
> > -static int sifive_i2c_adapter_write(struct i2c_adapter *ia, uint8_t
> > addr,
> > - uint8_t reg, uint8_t *buffer,
> > int len) +static int sifive_i2c_adapter_write_byte(struct
> > i2c_adapter
> > *ia,
> > + uint8_t byte, bool send_start, bool
> > send_stop) {
> > struct sifive_i2c_adapter *adap =
> > container_of(ia, struct sifive_i2c_adapter,
> > adapter);
> > - int rc = sifive_i2c_adapter_start(adap, addr,
> > SIFIVE_I2C_WRITE_BIT); -
> > - if (rc)
> > - return rc;
> > -
> > - rc = sifive_i2c_adapter_rxack(adap);
> > - if (rc)
> > - return rc;
> > -
> > - /* set register address */
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_TXR, reg);
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR, SIFIVE_I2C_CMD_WR |
> > - SIFIVE_I2C_CMD_IACK);
> > - rc = sifive_i2c_adapter_poll_tip(adap);
> > - if (rc)
> > - return rc;
> > -
> > - rc = sifive_i2c_adapter_rxack(adap);
> > - if (rc)
> > - return rc;
> > -
> > - /* set value */
> > - while (len) {
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_TXR, *buffer);
> > + int rc;
> > + if (send_start) {
> > + rc = sifive_i2c_adapter_start(adap, byte >> 1, byte
> > & 1);
> > + if (rc)
> > + return rc;
> > + } else {
> > + sifive_i2c_setreg(adap, SIFIVE_I2C_TXR, byte);
> > sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > SIFIVE_I2C_CMD_WR | SIFIVE_I2C_CMD_IACK);
> >
> > rc = sifive_i2c_adapter_poll_tip(adap);
> > if (rc)
> > return rc;
> > -
> > - rc = sifive_i2c_adapter_rxack(adap);
> > - if (rc)
> > - return rc;
> > -
> > - buffer++;
> > - len--;
> > }
> > -
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR, SIFIVE_I2C_CMD_STO |
> > - SIFIVE_I2C_CMD_IACK);
> > -
> > - /* poll BUSY instead of ACK*/
> > - rc = sifive_i2c_adapter_poll_busy(adap);
> > + rc = sifive_i2c_adapter_rxack(adap);
> > if (rc)
> > return rc;
> >
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR, SIFIVE_I2C_CMD_IACK);
> > + if (send_stop) {
> > + sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > SIFIVE_I2C_CMD_STO |
> > + SIFIVE_I2C_CMD_IACK);
> > + rc = sifive_i2c_adapter_poll_busy(adap);
> > + if (rc)
> > + return rc;
> >
> > + sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > SIFIVE_I2C_CMD_IACK);
> > + }
> > return 0;
> > }
> >
> > -static int sifive_i2c_adapter_read(struct i2c_adapter *ia, uint8_t
> > addr,
> > - uint8_t reg, uint8_t *buffer, int
> > len) +static int sifive_i2c_adapter_read_byte(struct i2c_adapter
> > *ia,
> > + uint8_t *byte, bool nack, bool
> > send_stop) {
> > struct sifive_i2c_adapter *adap =
> > container_of(ia, struct sifive_i2c_adapter,
> > adapter);
> > int rc;
> > -
> > - rc = sifive_i2c_adapter_start(adap, addr,
> > SIFIVE_I2C_WRITE_BIT);
> > - if (rc)
> > - return rc;
> > -
> > - rc = sifive_i2c_adapter_rxack(adap);
> > - if (rc)
> > - return rc;
> > -
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_TXR, reg);
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR, SIFIVE_I2C_CMD_WR |
> > - SIFIVE_I2C_CMD_IACK);
> > -
> > + if (nack)
> > + sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > + SIFIVE_I2C_CMD_ACK |
> > + SIFIVE_I2C_CMD_RD |
> > + SIFIVE_I2C_CMD_IACK);
> > + else
> > + sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > + SIFIVE_I2C_CMD_RD |
> > + SIFIVE_I2C_CMD_IACK);
> > rc = sifive_i2c_adapter_poll_tip(adap);
> > if (rc)
> > return rc;
> >
> > - rc = sifive_i2c_adapter_rxack(adap);
> > - if (rc)
> > - return rc;
> > -
> > - /* setting addr with high 0 bit */
> > - rc = sifive_i2c_adapter_start(adap, addr,
> > SIFIVE_I2C_READ_BIT);
> > - if (rc)
> > - return rc;
> > -
> > - rc = sifive_i2c_adapter_rxack(adap);
> > - if (rc)
> > - return rc;
> > + *byte = sifive_i2c_getreg(adap, SIFIVE_I2C_RXR);
> >
> > - while (len) {
> > - if (len == 1)
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > - SIFIVE_I2C_CMD_ACK |
> > - SIFIVE_I2C_CMD_RD |
> > - SIFIVE_I2C_CMD_IACK);
> > - else
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > - SIFIVE_I2C_CMD_RD |
> > - SIFIVE_I2C_CMD_IACK);
> > -
> > - rc = sifive_i2c_adapter_poll_tip(adap);
> > + if (send_stop) {
> > + sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > SIFIVE_I2C_CMD_STO |
> > + SIFIVE_I2C_CMD_IACK);
> > + rc = sifive_i2c_adapter_poll_busy(adap);
> > if (rc)
> > return rc;
> >
> > - *buffer = sifive_i2c_getreg(adap, SIFIVE_I2C_RXR);
> > - buffer++;
> > - len--;
> > + sifive_i2c_setreg(adap, SIFIVE_I2C_CR,
> > SIFIVE_I2C_CMD_IACK); }
> > -
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR, SIFIVE_I2C_CMD_STO |
> > - SIFIVE_I2C_CMD_IACK);
> > - rc = sifive_i2c_adapter_poll_busy(adap);
> > - if (rc)
> > - return rc;
> > -
> > - sifive_i2c_setreg(adap, SIFIVE_I2C_CR, SIFIVE_I2C_CMD_IACK);
> > -
> > return 0;
> > }
> >
> > @@ -256,8 +200,8 @@ static int sifive_i2c_init(void *fdt, int
> > nodeoff,
> > adapter->addr = addr;
> > adapter->adapter.driver = &fdt_i2c_adapter_sifive;
> > adapter->adapter.id = nodeoff;
> > - adapter->adapter.write = sifive_i2c_adapter_write;
> > - adapter->adapter.read = sifive_i2c_adapter_read;
> > + adapter->adapter.write_byte = sifive_i2c_adapter_write_byte;
> > + adapter->adapter.read_byte = sifive_i2c_adapter_read_byte;
> > rc = i2c_adapter_add(&adapter->adapter);
> > if (rc)
> > return rc;
> > diff --git a/lib/utils/i2c/i2c.c b/lib/utils/i2c/i2c.c
> > index 6be4e24..972c7bb 100644
> > --- a/lib/utils/i2c/i2c.c
> > +++ b/lib/utils/i2c/i2c.c
> > @@ -12,8 +12,12 @@
> > */
> >
> > #include <sbi/sbi_error.h>
> > +#include <sbi/sbi_string.h>
> > #include <sbi_utils/i2c/i2c.h>
> >
> > +#define I2C_10BIT_MASK 0x7c
> > +#define I2C_10BIT_VAL 0x78
> > +
> > static SBI_LIST_HEAD(i2c_adapters_list);
> >
> > struct i2c_adapter *i2c_adapter_find(int id)
> > @@ -51,25 +55,116 @@ void i2c_adapter_remove(struct i2c_adapter *ia)
> > sbi_list_del(&(ia->node));
> > }
> >
> > -int i2c_adapter_write(struct i2c_adapter *ia, uint8_t addr, uint8_t
> > reg,
> > - uint8_t *buffer, int len)
> > +unsigned i2c_10bit_address(unsigned addr)
> > {
> > - if (!ia)
> > - return SBI_EINVAL;
> > - if (!ia->write)
> > - return SBI_ENOSYS;
> > + return (addr & 0x3ff) | (I2C_10BIT_VAL << 8);
> > +}
> >
> > - return ia->write(ia, addr, reg, buffer, len);
> > +static inline int i2c_is_10bit_address(unsigned addr)
> > +{
> > + return ((addr >> 8) & I2C_10BIT_MASK) == I2C_10BIT_VAL;
> > }
> >
> > +static int i2c_adapter_read_helper(struct i2c_adapter *ia,
> > + unsigned addr, uint8_t *buff, unsigned len, bool
> > send_stop) +{
> > + int ret;
> > + if (!i2c_is_10bit_address(addr)) {
> > + ret = ia->write_byte(ia, (addr << 1) | I2C_OP_R,
> > true, false);
>
> Shoudn't there also be a hardware support for 10bit addresses ?
>
> I think it's up to driver to decide how to deal with 10bit addresses
>
> > + if (ret)
> > + return ret;
> > + } else {
> > + unsigned addr_h = (addr >> 8) & 0x7f;
> > + unsigned addr_l = (addr >> 0) & 0xff;
> > + ret = ia->write_byte(ia, (addr_h << 1) | I2C_OP_W,
> > true, false);
> > + if (ret)
> > + return ret;
> > + ret = ia->write_byte(ia, addr_l, false, false);
> > + if (ret)
> > + return ret;
> > + ret = ia->write_byte(ia, (addr_h << 1) | I2C_OP_R,
> > true, false);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + while (len--) {
> > + ret = ia->read_byte(ia, buff, len == 0, send_stop &&
> > (len == 0));
> > + if (ret)
> > + return ret;
> > + buff++;
> > + }
> > + return ret;
> > +}
>
> I don't think sending should exposed to upper abstraction level, it's
> up to driver to decide how to read.
>
> >
> > -int i2c_adapter_read(struct i2c_adapter *ia, uint8_t addr, uint8_t
> > reg,
> > - uint8_t *buffer, int len)
> > +static int i2c_adapter_write_helper(struct i2c_adapter *ia,
> > + unsigned addr, uint8_t *buff, unsigned len, bool
> > send_stop) {
> > - if (!ia)
> > - return SBI_EINVAL;
> > - if (!ia->read)
> > - return SBI_ENOSYS;
> > + int ret;
> > + if (!i2c_is_10bit_address(addr)) {
> > + ret = ia->write_byte(ia, (addr << 1) | I2C_OP_W,
> > true, false);
> > + if (ret)
> > + return ret;
> > + } else {
> > + unsigned addr_h = (addr >> 8) & 0x7f;
> > + unsigned addr_l = (addr >> 0) & 0xff;
> > + ret = ia->write_byte(ia, (addr_h << 1) | I2C_OP_W,
> > true, false);
> > + if (ret)
> > + return ret;
> > + ret = ia->write_byte(ia, addr_l, false, false);
> > + if (ret)
> > + return ret;
> > + }
> > +
> > + while (len--) {
> > + ret = ia->write_byte(ia, *buff, false, send_stop &&
> > (len == 0));
> > + if (ret)
> > + return ret;
> > + buff++;
> > + }
> > + return ret;
> > +}
>
> Same here.
>
> > +
> > +int i2c_adapter_read(struct i2c_adapter *ia,
> > + unsigned addr, uint8_t *buff, unsigned len)
> > +{
> > + return i2c_adapter_read_helper(ia, addr, buff, len, true);
> > +}
> >
> > - return ia->read(ia, addr, reg, buffer, len);
> > +int i2c_adapter_write(struct i2c_adapter *ia,
> > + unsigned addr, uint8_t *buff, unsigned len)
> > +{
> > + return i2c_adapter_write_helper(ia, addr, buff, len, true);
> > }
> > +
> > +int i2c_adapter_comb(struct i2c_adapter *ia, unsigned addr,
> > + enum i2c_op op0, uint8_t *buff0, unsigned len0,
> > + enum i2c_op op1, uint8_t *buff1, unsigned len1)
> > +{
> > + int ret;
> > + switch (op0) {
> > + case I2C_OP_W:
> > + ret = i2c_adapter_write_helper(ia, addr,
> > buff0, len0, false);
> > + break;
> > + case I2C_OP_R:
> > + ret = i2c_adapter_read_helper(ia, addr,
> > buff0, len0, false);
> > + break;
> > + default:
> > + return SBI_EINVAL;
> > + }
> > + if (ret)
> > + return ret;
> > +
> > + if (i2c_is_10bit_address(addr))
> > + addr = (addr >> 8) & 0x7f;
> > + switch (op0) {
> > + case I2C_OP_W:
> > + ret = i2c_adapter_write_helper(ia, addr,
> > buff0, len0, true);
> > + break;
> > + case I2C_OP_R:
> > + ret = i2c_adapter_read_helper(ia, addr,
> > buff0, len0, true);
> > + break;
> > + default:
> > + return SBI_EINVAL;
> > + }
> > + return ret;
> > +}
>
> i2c_adapter_comb looks really cumbersome and counter intuitive to me.
> What are we trying to achieve with this ?
>
>
> > \ No newline at end of file
> > diff --git a/platform/generic/sifive_fu740.c
> > b/platform/generic/sifive_fu740.c index 333b3fb..8e42a5d 100644
> > --- a/platform/generic/sifive_fu740.c
> > +++ b/platform/generic/sifive_fu740.c
> > @@ -34,6 +34,21 @@
> >
> > #define PMIC_CHIP_ID_DA9063 0x61
> >
> > +static inline int da9063_read_reg(struct i2c_adapter *adap, uint8_t
> > addr,
> > + uint8_t reg, uint8_t *val)
> > +{
> > + return i2c_adapter_comb(adap, addr, I2C_OP_W, ®, 1,
> > I2C_OP_R, val, 1); +}
> > +
> > +static inline int da9063_write_reg(struct i2c_adapter *adap,
> > uint8_t
> > addr,
> > + uint8_t reg, uint8_t val)
> > +{
> > + uint8_t buff[2];
> > + buff[0] = reg;
> > + buff[1] = val;
> > + return i2c_adapter_write(adap, addr, buff, 2);
> > +}
> > +
> > static struct {
> > struct i2c_adapter *adapter;
> > uint32_t reg;
> > @@ -55,13 +70,13 @@ static int da9063_system_reset_check(u32 type,
> > u32 reason) static inline int da9063_sanity_check(struct i2c_adapter
> > *adap, uint32_t reg) {
> > uint8_t val;
> > - int rc = i2c_adapter_reg_write(adap, reg,
> > DA9063_REG_PAGE_CON, 0x02);
> > + int rc = da9063_write_reg(adap, reg, DA9063_REG_PAGE_CON,
> > 0x02);
> > if (rc)
> > return rc;
> >
> > /* check set page*/
> > - rc = i2c_adapter_reg_read(adap, reg, 0x0, &val);
> > + rc = da9063_read_reg(adap, reg, 0x0, &val);
> > if (rc)
> > return rc;
> >
> > @@ -69,7 +84,7 @@ static inline int da9063_sanity_check(struct
> > i2c_adapter *adap, uint32_t reg) return SBI_ENODEV;
> >
> > /* read and check device id */
> > - rc = i2c_adapter_reg_read(adap, reg, DA9063_REG_DEVICE_ID,
> > &val);
> > + rc = da9063_read_reg(adap, reg, DA9063_REG_DEVICE_ID, &val);
> > if (rc)
> > return rc;
> >
> > @@ -81,32 +96,32 @@ static inline int da9063_sanity_check(struct
> > i2c_adapter *adap, uint32_t reg)
> > static inline int da9063_shutdown(struct i2c_adapter *adap,
> > uint32_t
> > reg) {
> > - int rc = i2c_adapter_reg_write(adap, da9063.reg,
> > + int rc = da9063_write_reg(adap, da9063.reg,
> > DA9063_REG_PAGE_CON, 0x00);
> >
> > if (rc)
> > return rc;
> >
> > - return i2c_adapter_reg_write(adap, da9063.reg,
> > + return da9063_write_reg(adap, da9063.reg,
> > DA9063_REG_CONTROL_F,
> > DA9063_CONTROL_F_SHUTDOWN);
> > }
> >
> > static inline int da9063_reset(struct i2c_adapter *adap, uint32_t
> > reg) {
> > - int rc = i2c_adapter_reg_write(adap, da9063.reg,
> > + int rc = da9063_write_reg(adap, da9063.reg,
> > DA9063_REG_PAGE_CON, 0x00);
> >
> > if (rc)
> > return rc;
> >
> > - rc = i2c_adapter_reg_write(adap, da9063.reg,
> > + rc = da9063_write_reg(adap, da9063.reg,
> > DA9063_REG_CONTROL_F,
> > DA9063_CONTROL_F_WAKEUP);
> > if (rc)
> > return rc;
> >
> > - return i2c_adapter_reg_write(adap, da9063.reg,
> > + return da9063_write_reg(adap, da9063.reg,
> > DA9063_REG_CONTROL_A,
> > DA9063_CONTROL_A_M_POWER1_EN |
> > DA9063_CONTROL_A_M_POWER_EN |
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