pinctrl: tegra: add support for rcv-sel and drive type

NVIDIA's Tegra114 added two more configuration parameter in pinmux i.e.
rcv-sel and drive type.

rcv-sel: Select between High and Normal VIL/VIH receivers.
	RCVR_SEL=1: High VIL/VIH
	RCVR_SEL=0: Normal VIL/VIH

drv_type: Ouptput drive type:
	33-50 ohm driver: 0x1
	66-100ohm driver: 0x0

Add support of these parameters to be configure from DTS file.

Tegra20 and Tegra30 does not support this configuration and hence initialize their
pinmux structure with reg = -1.

Originally written by Pritesh Raithatha.
Changes by ldewangan:
	- remove drvtype_width as it is always 2.
	- Better describe the change.

Signed-off-by: Pritesh Raithatha <praithatha@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/pinctrl/pinctrl-tegra.h b/drivers/pinctrl/pinctrl-tegra.h
index 62e380965c68..817f7061dc4c 100644
--- a/drivers/pinctrl/pinctrl-tegra.h
+++ b/drivers/pinctrl/pinctrl-tegra.h
@@ -30,6 +30,8 @@ enum tegra_pinconf_param {
         /* argument: Boolean */
         TEGRA_PINCONF_PARAM_IORESET,
         /* argument: Boolean */
+        TEGRA_PINCONF_PARAM_RCV_SEL,
+        /* argument: Boolean */
         TEGRA_PINCONF_PARAM_HIGH_SPEED_MODE,
         /* argument: Boolean */
         TEGRA_PINCONF_PARAM_SCHMITT,
@@ -43,6 +45,8 @@ enum tegra_pinconf_param {
         TEGRA_PINCONF_PARAM_SLEW_RATE_FALLING,
         /* argument: Integer, range is HW-dependant */
         TEGRA_PINCONF_PARAM_SLEW_RATE_RISING,
+        /* argument: Integer, range is HW-dependant */
+        TEGRA_PINCONF_PARAM_DRIVE_TYPE,
 };
 
 enum tegra_pinconf_pull {
@@ -95,6 +99,9 @@ struct tegra_function {
  * @ioreset_reg:        IO reset register offset. -1 if unsupported.
  * @ioreset_bank:       IO reset register bank. 0 if unsupported.
  * @ioreset_bit:        IO reset register bit. 0 if unsupported.
+ * @rcv_sel_reg:        Receiver select offset. -1 if unsupported.
+ * @rcv_sel_bank:       Receiver select bank. 0 if unsupported.
+ * @rcv_sel_bit:        Receiver select bit. 0 if unsupported.
  * @drv_reg:            Drive fields register offset. -1 if unsupported.
  *                      This register contains the hsm, schmitt, lpmd, drvdn,
  *                      drvup, slwr, and slwf parameters.
@@ -110,6 +117,9 @@ struct tegra_function {
  * @slwr_width:         Slew Rising field width. 0 if unsupported.
  * @slwf_bit:           Slew Falling register bit. 0 if unsupported.
  * @slwf_width:         Slew Falling field width. 0 if unsupported.
+ * @drvtype_reg:        Drive type fields register offset. -1 if unsupported.
+ * @drvtype_bank:       Drive type fields register bank. 0 if unsupported.
+ * @drvtype_bit:        Drive type register bit. 0 if unsupported.
  *
  * A representation of a group of pins (possibly just one pin) in the Tegra
  * pin controller. Each group allows some parameter or parameters to be
@@ -131,15 +141,19 @@ struct tegra_pingroup {
         s16 odrain_reg;
         s16 lock_reg;
         s16 ioreset_reg;
+        s16 rcv_sel_reg;
         s16 drv_reg;
+        s16 drvtype_reg;
         u32 mux_bank:2;
         u32 pupd_bank:2;
         u32 tri_bank:2;
         u32 einput_bank:2;
         u32 odrain_bank:2;
         u32 ioreset_bank:2;
+        u32 rcv_sel_bank:2;
         u32 lock_bank:2;
         u32 drv_bank:2;
+        u32 drvtype_bank:2;
         u32 mux_bit:5;
         u32 pupd_bit:5;
         u32 tri_bit:5;
@@ -147,6 +161,7 @@ struct tegra_pingroup {
         u32 odrain_bit:5;
         u32 lock_bit:5;
         u32 ioreset_bit:5;
+        u32 rcv_sel_bit:5;
         u32 hsm_bit:5;
         u32 schmitt_bit:5;
         u32 lpmd_bit:5;
@@ -154,6 +169,7 @@ struct tegra_pingroup {
         u32 drvup_bit:5;
         u32 slwr_bit:5;
         u32 slwf_bit:5;
+        u32 drvtype_bit:5;
         u32 drvdn_width:6;
         u32 drvup_width:6;
         u32 slwr_width:6;