patrick/zephyr
1
0
Fork 0
Code Issues Pull requests Actions 7 Packages Projects Releases Wiki Activity

drivers: ps2: add Zephyr pinctrl support

Browse source 
Replace soc-specific pin functions with Zephyr pinctrl api functions for
pin-mux configuration in ps2 driver.

Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
This commit is contained in:
Mulin Chao 2022-02-21 19:17:26 -08:00 committed by Maureen Helm
parent 8f65bdabab
commit 95f6dc6c35
3 changed files with 15 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
drivers/ps2/ps2_npcx_channel.c
View file

@ -17,6 +17,7 @@
*/
#include <zephyr/drivers/clock_control.h>
#include <zephyr/drivers/pinctrl.h>
#include <zephyr/drivers/ps2.h>
#include <soc.h>
@ -27,12 +28,11 @@ LOG_MODULE_REGISTER(ps2_npcx_channel, CONFIG_PS2_LOG_LEVEL);
/* Device config */
struct ps2_npcx_ch_config {
/* pinmux configuration */
const uint8_t alts_size;
const struct npcx_alt *alts_list;
/* Indicate the channel's number of the PS/2 channel device */
uint8_t channel_id;
const struct device *ps2_ctrl;
/* pinmux configuration */
const struct pinctrl_dev_config *pcfg;
};
/* PS/2 api functions */
@ -78,6 +78,7 @@ static int ps2_npcx_ch_inhibit_interface(const struct device *dev)
static int ps2_npcx_channel_init(const struct device *dev)
{
const struct ps2_npcx_ch_config *const config = dev->config;
int ret;
if (!device_is_ready(config->ps2_ctrl)) {
LOG_ERR("%s device not ready", config->ps2_ctrl->name);
@ -85,7 +86,11 @@ static int ps2_npcx_channel_init(const struct device *dev)
}
/* Configure pin-mux for PS/2 device */
npcx_pinctrl_mux_configure(config->alts_list, config->alts_size, 1);
ret = pinctrl_apply_state(config->pcfg, PINCTRL_STATE_DEFAULT);
if (ret < 0) {
LOG_ERR("PS2 pinctrl setup failed (%d)", ret);
return ret;
}
return 0;
}
@ -101,14 +106,12 @@ static const struct ps2_driver_api ps2_channel_npcx_driver_api = {
/* PS/2 channel initialization macro functions */
#define NPCX_PS2_CHANNEL_INIT(inst) \
\
static const struct npcx_alt ps2_channel_alts##inst[] = \
NPCX_DT_ALT_ITEMS_LIST(inst); \
PINCTRL_DT_INST_DEFINE(inst); \
\
static const struct ps2_npcx_ch_config ps2_npcx_ch_cfg_##inst = { \
.channel_id = DT_INST_PROP(inst, channel), \
.alts_size = ARRAY_SIZE(ps2_channel_alts##inst), \
.alts_list = ps2_channel_alts##inst, \
.ps2_ctrl = DEVICE_DT_GET(DT_INST_PARENT(inst)), \
.pcfg = PINCTRL_DT_INST_DEV_CONFIG_GET(inst), \
}; \
\
DEVICE_DT_INST_DEFINE(inst, ps2_npcx_channel_init, NULL, NULL, \

4
dts/arm/nuvoton/npcx.dtsi
View file

@ -531,7 +531,6 @@
ps2_channel0: io_ps2_channel0 {
compatible = "nuvoton,npcx-ps2-channel";
channel = <0x00>;
pinctrl-0 = <&alt3_ps2_0_sl>; /* PIN67.70 */
label = "PS2_CHANNEL_0";
status = "disabled";
};
@ -539,7 +538,6 @@
ps2_channel1: io_ps2_channel1 {
compatible = "nuvoton,npcx-ps2-channel";
channel = <0x01>;
pinctrl-0 = <&alt3_ps2_1_sl>; /* PIN62.63 */
label = "PS2_CHANNEL_1";
status = "disabled";
};
@ -547,7 +545,6 @@
ps2_channel2: io_ps2_channel2 {
compatible = "nuvoton,npcx-ps2-channel";
channel = <0x02>;
pinctrl-0 = <&alt3_ps2_2_sl>; /* PIN37.34 */
label = "PS2_CHANNEL_2";
status = "disabled";
};
@ -555,7 +552,6 @@
ps2_channel3: io_ps2_channel3 {
compatible = "nuvoton,npcx-ps2-channel";
channel = <0x03>;
pinctrl-0 = <&altc_ps2_3_sl2>; /* PINA6.A7 */
label = "PS2_CHANNEL_3";
status = "disabled";
};

7
dts/bindings/ps2/nuvoton,npcx-ps2-channel.yaml
View file

@ -5,7 +5,7 @@ description: Nuvoton, NPCX-PS/2 channel pads node
compatible: "nuvoton,npcx-ps2-channel"
include: base.yaml
include: [base.yaml, pinctrl-device.yaml]
properties:
channel:
@ -14,6 +14,7 @@ properties:
description: index of i2c channel
pinctrl-0:
type: phandles
required: true
description: configurations of pinmux controllers
pinctrl-names:
required: true