Djam/u-boot
1
0
Fork 0
mirror of https://github.com/u-boot/u-boot.git synced 2025-04-28 00:11:32 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

rockchip: i2c: Update the driver to use the new clock ID

Browse source 
We can use the new clk_get_by_index() function to get the correct clock.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2016-01-21 19:43:42 -07:00
parent 64b7faa7f9
commit 930bc37423
1 changed files with 22 additions and 16 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

38
drivers/i2c/rk_i2c.c
View file

@ -30,10 +30,9 @@ DECLARE_GLOBAL_DATA_PTR;
struct rk_i2c { struct rk_i2c {
struct udevice *clk; struct udevice *clk;
struct udevice *pinctrl;
struct i2c_regs *regs; struct i2c_regs *regs;
unsigned int speed; unsigned int speed;
enum periph_id id; int clk_id;
}; };
static inline void rk_i2c_get_div(int div, int *divh, int *divl) static inline void rk_i2c_get_div(int div, int *divh, int *divl)
@ -56,7 +55,7 @@ static void rk_i2c_set_clk(struct rk_i2c *i2c, uint32_t scl_rate)
int div, divl, divh; int div, divl, divh;
/* First get i2c rate from pclk */ /* First get i2c rate from pclk */
i2c_rate = clk_get_periph_rate(i2c->clk, i2c->id); i2c_rate = clk_get_periph_rate(i2c->clk, i2c->clk_id);
div = DIV_ROUND_UP(i2c_rate, scl_rate * 8) - 2; div = DIV_ROUND_UP(i2c_rate, scl_rate * 8) - 2;
divh = 0; divh = 0;
@ -352,23 +351,29 @@ int rockchip_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
return 0; return 0;
} }
static int rockchip_i2c_probe(struct udevice *bus) static int rockchip_i2c_ofdata_to_platdata(struct udevice *bus)
{ {
struct rk_i2c *i2c = dev_get_priv(bus); struct rk_i2c *priv = dev_get_priv(bus);
int ret; int ret;
ret = uclass_get_device(UCLASS_PINCTRL, 0, &i2c->pinctrl); ret = clk_get_by_index(bus, 0, &priv->clk);
if (ret) if (ret < 0) {
debug("%s: Could not get clock for %s: %d\n", __func__,
bus->name, ret);
return ret; return ret;
ret = uclass_get_device(UCLASS_CLK, 0, &i2c->clk); }
if (ret) priv->clk_id = ret;
return ret;
ret = pinctrl_get_periph_id(i2c->pinctrl, bus); return 0;
if (ret < 0) }
return ret;
i2c->id = ret; static int rockchip_i2c_probe(struct udevice *bus)
i2c->regs = (void *)dev_get_addr(bus); {
return pinctrl_request(i2c->pinctrl, i2c->id, 0); struct rk_i2c *priv = dev_get_priv(bus);
priv->regs = (void *)dev_get_addr(bus);
return 0;
} }
static const struct dm_i2c_ops rockchip_i2c_ops = { static const struct dm_i2c_ops rockchip_i2c_ops = {
@ -385,6 +390,7 @@ U_BOOT_DRIVER(i2c_rockchip) = {
.name = "i2c_rockchip", .name = "i2c_rockchip",
.id = UCLASS_I2C, .id = UCLASS_I2C,
.of_match = rockchip_i2c_ids, .of_match = rockchip_i2c_ids,
.ofdata_to_platdata = rockchip_i2c_ofdata_to_platdata,
.probe = rockchip_i2c_probe, .probe = rockchip_i2c_probe,
.priv_auto_alloc_size = sizeof(struct rk_i2c), .priv_auto_alloc_size = sizeof(struct rk_i2c),
.ops = &rockchip_i2c_ops, .ops = &rockchip_i2c_ops,