[PATCH v3 3/5] i2c: qcom-cci: Add 19.2 MHz timings for the v2 CCI

[Loic Poulain]

The v2 CCI (msm8996/sdm630/msm8953/...) is normally clocked at 37.5 MHz,
but its CCI clock can also be configured and run at 19.2 MHz. Add the
Standard and Fast timing sets calibrated for 19.2 MHz so that a v2
controller left at that rate still has valid timings for those modes
(Fast+ requires 37.5 MHz).

The values mirror the v1/v1.5 19.2 MHz Standard/Fast timings, which
share the same CCI clock rate.

Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxxxxxxxx>
---
 drivers/i2c/busses/i2c-qcom-cci.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/i2c/busses/i2c-qcom-cci.c b/drivers/i2c/busses/i2c-qcom-cci.c
index 6fc2327db44acf016d008d0e268099494572774b..a7b9a8d43e39a6bdeb47250c34ef7474bd7138f8 100644
--- a/drivers/i2c/busses/i2c-qcom-cci.c
+++ b/drivers/i2c/busses/i2c-qcom-cci.c
@@ -778,6 +778,30 @@ static const struct cci_data cci_v2_data = {
 		.max_write_len = 11,
 		.max_read_len = 12,
 	},
+	.params[CCI_CLK_RATE_19_2MHZ][I2C_MODE_STANDARD] = {
+		.thigh = 78,
+		.tlow = 114,
+		.tsu_sto = 28,
+		.tsu_sta = 28,
+		.thd_dat = 10,
+		.thd_sta = 77,
+		.tbuf = 118,
+		.scl_stretch_en = 0,
+		.trdhld = 6,
+		.tsp = 1
+	},
+	.params[CCI_CLK_RATE_19_2MHZ][I2C_MODE_FAST] = {
+		.thigh = 20,
+		.tlow = 28,
+		.tsu_sto = 21,
+		.tsu_sta = 21,
+		.thd_dat = 13,
+		.thd_sta = 18,
+		.tbuf = 32,
+		.scl_stretch_en = 0,
+		.trdhld = 6,
+		.tsp = 3
+	},
 	.params[CCI_CLK_RATE_37_5MHZ][I2C_MODE_STANDARD] = {
 		.thigh = 201,
 		.tlow = 174,

-- 
2.34.1