Message ID | 20240706112116.24543-49-wsa+renesas@sang-engineering.com |
---|---|
State | New |
Headers | show |
Series | i2c: reword first drivers according to newest specification | expand |
On Sat, Jul 6, 2024 at 7:22 PM Wolfram Sang <wsa+renesas@sang-engineering.com> wrote: > > Change the wording of this driver wrt. the newest I2C v7 and SMBus 3.2 > specifications and replace "master/slave" with more appropriate terms. > > Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Chen-Yu Tsai <wens@csie.org> > --- > drivers/i2c/busses/i2c-sun6i-p2wi.c | 20 ++++++++++---------- > 1 file changed, 10 insertions(+), 10 deletions(-) > > diff --git a/drivers/i2c/busses/i2c-sun6i-p2wi.c b/drivers/i2c/busses/i2c-sun6i-p2wi.c > index 85e035e7a1d7..074eade6c4a4 100644 > --- a/drivers/i2c/busses/i2c-sun6i-p2wi.c > +++ b/drivers/i2c/busses/i2c-sun6i-p2wi.c > @@ -10,7 +10,7 @@ > * The P2WI controller looks like an SMBus controller which only supports byte > * data transfers. But, it differs from standard SMBus protocol on several > * aspects: > - * - it supports only one slave device, and thus drop the address field > + * - it supports only one target device, and thus drop the address field > * - it adds a parity bit every 8bits of data > * - only one read access is required to read a byte (instead of a write > * followed by a read access in standard SMBus protocol) > @@ -88,7 +88,7 @@ struct p2wi { > void __iomem *regs; > struct clk *clk; > struct reset_control *rstc; > - int slave_addr; > + int target_addr; > }; > > static irqreturn_t p2wi_interrupt(int irq, void *dev_id) > @@ -121,7 +121,7 @@ static int p2wi_smbus_xfer(struct i2c_adapter *adap, u16 addr, > struct p2wi *p2wi = i2c_get_adapdata(adap); > unsigned long dlen = P2WI_DLEN_DATA_LENGTH(1); > > - if (p2wi->slave_addr >= 0 && addr != p2wi->slave_addr) { > + if (p2wi->target_addr >= 0 && addr != p2wi->target_addr) { > dev_err(&adap->dev, "invalid P2WI address\n"); > return -EINVAL; > } > @@ -188,7 +188,7 @@ static int p2wi_probe(struct platform_device *pdev) > unsigned long parent_clk_freq; > u32 clk_freq = I2C_MAX_STANDARD_MODE_FREQ; > struct p2wi *p2wi; > - u32 slave_addr; > + u32 target_addr; > int clk_div; > int irq; > int ret; > @@ -207,7 +207,7 @@ static int p2wi_probe(struct platform_device *pdev) > } > > if (of_get_child_count(np) > 1) { > - dev_err(dev, "P2WI only supports one slave device\n"); > + dev_err(dev, "P2WI only supports one target device\n"); > return -EINVAL; > } > > @@ -215,24 +215,24 @@ static int p2wi_probe(struct platform_device *pdev) > if (!p2wi) > return -ENOMEM; > > - p2wi->slave_addr = -1; > + p2wi->target_addr = -1; > > /* > * Authorize a p2wi node without any children to be able to use an > * i2c-dev from userpace. > - * In this case the slave_addr is set to -1 and won't be checked when > + * In this case the target_addr is set to -1 and won't be checked when > * launching a P2WI transfer. > */ > childnp = of_get_next_available_child(np, NULL); > if (childnp) { > - ret = of_property_read_u32(childnp, "reg", &slave_addr); > + ret = of_property_read_u32(childnp, "reg", &target_addr); > if (ret) { > - dev_err(dev, "invalid slave address on node %pOF\n", > + dev_err(dev, "invalid target address on node %pOF\n", > childnp); > return -EINVAL; > } > > - p2wi->slave_addr = slave_addr; > + p2wi->target_addr = target_addr; > } > > p2wi->regs = devm_platform_ioremap_resource(pdev, 0); > -- > 2.43.0 >
diff --git a/drivers/i2c/busses/i2c-sun6i-p2wi.c b/drivers/i2c/busses/i2c-sun6i-p2wi.c index 85e035e7a1d7..074eade6c4a4 100644 --- a/drivers/i2c/busses/i2c-sun6i-p2wi.c +++ b/drivers/i2c/busses/i2c-sun6i-p2wi.c @@ -10,7 +10,7 @@ * The P2WI controller looks like an SMBus controller which only supports byte * data transfers. But, it differs from standard SMBus protocol on several * aspects: - * - it supports only one slave device, and thus drop the address field + * - it supports only one target device, and thus drop the address field * - it adds a parity bit every 8bits of data * - only one read access is required to read a byte (instead of a write * followed by a read access in standard SMBus protocol) @@ -88,7 +88,7 @@ struct p2wi { void __iomem *regs; struct clk *clk; struct reset_control *rstc; - int slave_addr; + int target_addr; }; static irqreturn_t p2wi_interrupt(int irq, void *dev_id) @@ -121,7 +121,7 @@ static int p2wi_smbus_xfer(struct i2c_adapter *adap, u16 addr, struct p2wi *p2wi = i2c_get_adapdata(adap); unsigned long dlen = P2WI_DLEN_DATA_LENGTH(1); - if (p2wi->slave_addr >= 0 && addr != p2wi->slave_addr) { + if (p2wi->target_addr >= 0 && addr != p2wi->target_addr) { dev_err(&adap->dev, "invalid P2WI address\n"); return -EINVAL; } @@ -188,7 +188,7 @@ static int p2wi_probe(struct platform_device *pdev) unsigned long parent_clk_freq; u32 clk_freq = I2C_MAX_STANDARD_MODE_FREQ; struct p2wi *p2wi; - u32 slave_addr; + u32 target_addr; int clk_div; int irq; int ret; @@ -207,7 +207,7 @@ static int p2wi_probe(struct platform_device *pdev) } if (of_get_child_count(np) > 1) { - dev_err(dev, "P2WI only supports one slave device\n"); + dev_err(dev, "P2WI only supports one target device\n"); return -EINVAL; } @@ -215,24 +215,24 @@ static int p2wi_probe(struct platform_device *pdev) if (!p2wi) return -ENOMEM; - p2wi->slave_addr = -1; + p2wi->target_addr = -1; /* * Authorize a p2wi node without any children to be able to use an * i2c-dev from userpace. - * In this case the slave_addr is set to -1 and won't be checked when + * In this case the target_addr is set to -1 and won't be checked when * launching a P2WI transfer. */ childnp = of_get_next_available_child(np, NULL); if (childnp) { - ret = of_property_read_u32(childnp, "reg", &slave_addr); + ret = of_property_read_u32(childnp, "reg", &target_addr); if (ret) { - dev_err(dev, "invalid slave address on node %pOF\n", + dev_err(dev, "invalid target address on node %pOF\n", childnp); return -EINVAL; } - p2wi->slave_addr = slave_addr; + p2wi->target_addr = target_addr; } p2wi->regs = devm_platform_ioremap_resource(pdev, 0);
Change the wording of this driver wrt. the newest I2C v7 and SMBus 3.2 specifications and replace "master/slave" with more appropriate terms. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> --- drivers/i2c/busses/i2c-sun6i-p2wi.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-)