From: Jun Chen <jun.chen@vatics.com>
Date: Mon, 2 Mar 2020 08:58:57 +0000 (+0800)
Subject: i2c: designware_i2c: add 'hs_hcnt' and 'hs_lcnt' for high speed
X-Git-Tag: v2020.07-rc1~41^2~8^2~1
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=27d483bfa34c1695c2be230efc50c52d5a3d04e2;p=oweals%2Fu-boot.git

i2c: designware_i2c: add 'hs_hcnt' and 'hs_lcnt' for high speed

Add support for high speed if scl_sda_cfg exist.

Signed-off-by: Jun Chen <ptchentw@gmail.com>
Signed-off-by: Jun Chen <jun.chen@vatics.com>
---

diff --git a/drivers/i2c/designware_i2c.c b/drivers/i2c/designware_i2c.c
index 74aef7744c..088a6f3efb 100644
--- a/drivers/i2c/designware_i2c.c
+++ b/drivers/i2c/designware_i2c.c
@@ -240,6 +240,9 @@ static int calc_bus_speed(struct dw_i2c *priv, int speed, ulong bus_clk,
 		if (i2c_spd == IC_SPEED_MODE_STANDARD) {
 			config->scl_hcnt = scl_sda_cfg->ss_hcnt;
 			config->scl_lcnt = scl_sda_cfg->ss_lcnt;
+		} else if (i2c_spd == IC_SPEED_MODE_HIGH) {
+			config->scl_hcnt = scl_sda_cfg->hs_hcnt;
+			config->scl_lcnt = scl_sda_cfg->hs_lcnt;
 		} else {
 			config->scl_hcnt = scl_sda_cfg->fs_hcnt;
 			config->scl_lcnt = scl_sda_cfg->fs_lcnt;
diff --git a/drivers/i2c/designware_i2c.h b/drivers/i2c/designware_i2c.h
index 5a04ce50e2..7ee236193d 100644
--- a/drivers/i2c/designware_i2c.h
+++ b/drivers/i2c/designware_i2c.h
@@ -146,15 +146,19 @@ struct i2c_regs {
  *
  * @ss_hcnt: Standard speed high time in ns
  * @fs_hcnt: Fast speed high time in ns
+ * @hs_hcnt: High speed high time in ns
  * @ss_lcnt: Standard speed low time in ns
  * @fs_lcnt: Fast speed low time in ns
+ * @hs_lcnt: High speed low time in ns
  * @sda_hold: SDA hold time
  */
 struct dw_scl_sda_cfg {
 	u32 ss_hcnt;
 	u32 fs_hcnt;
+	u32 hs_hcnt;
 	u32 ss_lcnt;
 	u32 fs_lcnt;
+	u32 hs_lcnt;
 	u32 sda_hold;
 };