92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#include "disp_dts_gpio.h"
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#include "disp_helper.h"
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#include "disp_drv_log.h"
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#include <linux/kernel.h> /* printk */
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#ifndef CONFIG_FPGA_EARLY_PORTING
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static struct pinctrl *this_pctrl; /* static pinctrl instance */
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#endif
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/* DTS state mapping name */
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static const char *this_state_name[DTS_GPIO_STATE_MAX] = {
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"lcd_bias_enp1_gpio",
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"lcd_bias_enp0_gpio",
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"lcd_bias_enn1_gpio",
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"lcd_bias_enn0_gpio",
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"lcm_rst_out1_gpio",
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"lcm_rst_out0_gpio",
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"lcm1_rst_out1_gpio",
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"lcm1_rst_out0_gpio",
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"tp_rst_out1_gpio",
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"tp_rst_out0_gpio",
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"mode_te_gpio",
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"mode_te_te",
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"mode_te1_te",
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};
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/* pinctrl implementation */
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static long _set_state(const char *name)
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{
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#ifndef CONFIG_FPGA_EARLY_PORTING
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long ret = 0;
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struct pinctrl_state *pState = 0;
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if (!this_pctrl) {
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pr_info("this pctrl is null\n");
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return -1;
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}
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pState = pinctrl_lookup_state(this_pctrl, name);
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if (IS_ERR(pState)) {
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pr_info("lookup state '%s' failed\n", name);
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ret = PTR_ERR(pState);
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goto exit;
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}
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/* select state! */
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pinctrl_select_state(this_pctrl, pState);
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exit:
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return ret; /* Good! */
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#else
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return 0;
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#endif
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}
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long disp_dts_gpio_init(struct platform_device *pdev)
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{
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#ifndef CONFIG_FPGA_EARLY_PORTING
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long ret = 0;
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struct pinctrl *pctrl;
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/* retrieve */
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pctrl = devm_pinctrl_get(&pdev->dev);
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if (IS_ERR(pctrl)) {
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DISPMSG("Cannot find disp pinctrl!");
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ret = PTR_ERR(pctrl);
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goto exit;
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}
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this_pctrl = pctrl;
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exit:
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return ret;
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#else
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return 0;
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#endif
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}
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long disp_dts_gpio_select_state(enum DTS_GPIO_STATE s)
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{
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if (!((unsigned int)(s) < (unsigned int)(DTS_GPIO_STATE_MAX))) {
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pr_info("GPIO STATE is invalid,state=%d\n", (unsigned int)s);
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return -1;
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}
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return _set_state(this_state_name[s]);
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}
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