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drivers: pinctrl: update lpc iocon to support LPC55s3x

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LPC55s3x family has an additional analog mode bit available. Update
IOCON binding and IOCON driver to support setting this bit via a pin
control property.

Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This commit is contained in:
Daniel DeGrasse 2022-07-18 17:31:29 -05:00 • committed by Mahesh Mahadevan
commit f7f94dd367
2 changed files with 18 additions and 2 deletions
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7
dts/bindings/pinctrl/nxp,lpc-iocon-pinctrl.yaml
View file

@ -95,7 +95,12 @@ child-binding:
type: boolean
description: |
Set the pin to analog mode. Sets DIGIMODE=0, and ASW=1. Only valid for
analog type pins.
analog type pins. Selects ASW0 on LPC55s3x family
nxp,analog-alt-mode:
type: boolean
description: |
Select the pin's alternate analog mode. Valid on LPC55s3x family SOCs
when DIGIMODE=0. Only valid for analog type pins. Sets ASW1.
power-source:
type: string
enum:

13
soc/arm/nxp_lpc/lpc55xxx/pinctrl_soc.h
View file

@ -18,6 +18,16 @@ extern "C" {
typedef uint32_t pinctrl_soc_pin_t;
#ifdef CONFIG_SOC_LPC55S36
/* LPC55S36 has two analog switches, and no IOCON_PIO_ASW definitions */
#define IOCON_PIO_ASW(x) IOCON_PIO_ASW0(x)
#define IOCON_PIO_ASW_MASK IOCON_PIO_ASW0_MASK
#else
/* Other LPC55sxx parts have one analog switch */
#define IOCON_PIO_ASW1(x) 0
#define IOCON_PIO_ASW1_MASK 0x0
#endif
#define Z_PINCTRL_IOCON_PINCFG(node_id) \
(IF_ENABLED(DT_PROP(node_id, bias_pull_down), (IOCON_PIO_MODE(0x1) |)) \
IF_ENABLED(DT_PROP(node_id, bias_pull_up), (IOCON_PIO_MODE(0x2) |)) \
@ -27,6 +37,7 @@ typedef uint32_t pinctrl_soc_pin_t;
IOCON_PIO_DIGIMODE(!DT_PROP(node_id, nxp_analog_mode)) | \
IOCON_PIO_OD(DT_PROP(node_id, drive_open_drain)) | \
IOCON_PIO_ASW(DT_PROP(node_id, nxp_analog_mode)) | \
IOCON_PIO_ASW1(DT_PROP(node_id, nxp_analog_alt_mode)) | \
IOCON_PIO_SSEL(DT_ENUM_IDX_OR(node_id, power_source, 0)) | \
IOCON_PIO_FILTEROFF(!DT_NODE_HAS_PROP(node_id, nxp_i2c_filter)) | \
IOCON_PIO_ECS(DT_PROP(node_id, nxp_i2c_pullup)) | \
@ -40,7 +51,7 @@ typedef uint32_t pinctrl_soc_pin_t;
/* Mask for analog type pin configuration register */
#define Z_PINCTRL_IOCON_A_PIN_MASK \
(Z_PINCTRL_IOCON_D_PIN_MASK | IOCON_PIO_ASW_MASK)
(Z_PINCTRL_IOCON_D_PIN_MASK | IOCON_PIO_ASW_MASK | IOCON_PIO_ASW1_MASK)
/* Mask for i2c type pin configuration register */
#define Z_PINCTRL_IOCON_I_PIN_MASK (Z_PINCTRL_IOCON_D_PIN_MASK | \