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authorSimon Glass <sjg@chromium.org>2020-01-23 11:48:12 -0700
committerHeiko Schocher <hs@denx.de>2020-01-27 07:21:20 +0100
commitd22409e2dc7adfaf99c1a5a02902a425f98fd15a (patch)
tree662e7ffaa78b6080324b3e5a2360e94e66b2b047 /drivers/i2c/designware_i2c.c
parent80a03db4f3bfac8220d0445c33aee24c5a3c13b1 (diff)
i2c: designware_i2c: Drop scl_sda_cfg parameter
Instead of passing this parameter into __dw_i2c_set_bus_speed(), pass in the driver's private data, from which the function can obtain that information. This allows the function to have access to the full state of the driver. Signed-off-by: Sicomp_param1mon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/i2c/designware_i2c.c')
-rw-r--r--drivers/i2c/designware_i2c.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c
index 34b6816545..6e5545cd0c 100644
--- a/drivers/i2c/designware_i2c.c
+++ b/drivers/i2c/designware_i2c.c
@@ -52,17 +52,20 @@ static int dw_i2c_enable(struct i2c_regs *i2c_base, bool enable)
*
* Set the i2c speed.
*/
-static unsigned int __dw_i2c_set_bus_speed(struct i2c_regs *i2c_base,
- struct dw_scl_sda_cfg *scl_sda_cfg,
+static unsigned int __dw_i2c_set_bus_speed(struct dw_i2c *priv,
+ struct i2c_regs *i2c_base,
unsigned int speed,
unsigned int bus_clk)
{
+ const struct dw_scl_sda_cfg *scl_sda_cfg = NULL;
ulong bus_khz = bus_clk / 1000;
enum i2c_speed_mode i2c_spd;
unsigned int cntl;
unsigned int hcnt, lcnt;
unsigned int ena;
+ if (priv)
+ scl_sda_cfg = priv->scl_sda_cfg;
/* Allow high speed if there is no config, or the config allows it */
if (speed >= I2C_HIGH_SPEED &&
(!scl_sda_cfg || scl_sda_cfg->has_high_speed))
@@ -371,7 +374,7 @@ static int __dw_i2c_init(struct i2c_regs *i2c_base, int speed, int slaveaddr)
writel(IC_TX_TL, &i2c_base->ic_tx_tl);
writel(IC_STOP_DET, &i2c_base->ic_intr_mask);
#ifndef CONFIG_DM_I2C
- __dw_i2c_set_bus_speed(i2c_base, NULL, speed, IC_CLK);
+ __dw_i2c_set_bus_speed(NULL, i2c_base, speed, IC_CLK);
writel(slaveaddr, &i2c_base->ic_sar);
#endif
@@ -416,7 +419,7 @@ static unsigned int dw_i2c_set_bus_speed(struct i2c_adapter *adap,
unsigned int speed)
{
adap->speed = speed;
- return __dw_i2c_set_bus_speed(i2c_get_base(adap), NULL, speed, IC_CLK);
+ return __dw_i2c_set_bus_speed(NULL, i2c_get_base(adap), speed, IC_CLK);
}
static void dw_i2c_init(struct i2c_adapter *adap, int speed, int slaveaddr)
@@ -515,8 +518,7 @@ static int designware_i2c_set_bus_speed(struct udevice *bus, unsigned int speed)
#else
rate = IC_CLK;
#endif
- return __dw_i2c_set_bus_speed(i2c->regs, i2c->scl_sda_cfg, speed,
- rate);
+ return __dw_i2c_set_bus_speed(i2c, i2c->regs, speed, rate);
}
static int designware_i2c_probe_chip(struct udevice *bus, uint chip_addr,