173 lines
3.2 KiB
C
173 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* linux/drivers/video/mmp/panel/tpo_tj032md01bw.c
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* active panel using spi interface to do init
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*
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* Copyright (C) 2012 Marvell Technology Group Ltd.
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* Authors: Guoqing Li <ligq@marvell.com>
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* Lisa Du <cldu@marvell.com>
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* Zhou Zhu <zzhu3@marvell.com>
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/errno.h>
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#include <linux/string.h>
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#include <linux/delay.h>
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#include <linux/platform_device.h>
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#include <linux/err.h>
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#include <linux/spi/spi.h>
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#include <video/mmp_disp.h>
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static u16 init[] = {
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0x0801,
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0x0800,
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0x0200,
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0x0304,
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0x040e,
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0x0903,
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0x0b18,
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0x0c53,
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0x0d01,
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0x0ee0,
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0x0f01,
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0x1058,
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0x201e,
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0x210a,
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0x220a,
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0x231e,
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0x2400,
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0x2532,
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0x2600,
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0x27ac,
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0x2904,
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0x2aa2,
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0x2b45,
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0x2c45,
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0x2d15,
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0x2e5a,
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0x2fff,
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0x306b,
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0x310d,
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0x3248,
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0x3382,
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0x34bd,
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0x35e7,
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0x3618,
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0x3794,
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0x3801,
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0x395d,
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0x3aae,
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0x3bff,
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0x07c9,
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};
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static u16 poweroff[] = {
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0x07d9,
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};
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struct tpohvga_plat_data {
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void (*plat_onoff)(int status);
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struct spi_device *spi;
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};
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static void tpohvga_onoff(struct mmp_panel *panel, int status)
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{
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struct tpohvga_plat_data *plat = panel->plat_data;
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int ret;
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if (status) {
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plat->plat_onoff(1);
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ret = spi_write(plat->spi, init, sizeof(init));
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if (ret < 0)
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dev_warn(panel->dev, "init cmd failed(%d)\n", ret);
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} else {
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ret = spi_write(plat->spi, poweroff, sizeof(poweroff));
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if (ret < 0)
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dev_warn(panel->dev, "poweroff cmd failed(%d)\n", ret);
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plat->plat_onoff(0);
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}
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}
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static struct mmp_mode mmp_modes_tpohvga[] = {
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[0] = {
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.pixclock_freq = 10394400,
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.refresh = 60,
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.xres = 320,
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.yres = 480,
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.hsync_len = 10,
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.left_margin = 15,
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.right_margin = 10,
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.vsync_len = 2,
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.upper_margin = 4,
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.lower_margin = 2,
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.invert_pixclock = 1,
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.pix_fmt_out = PIXFMT_RGB565,
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},
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};
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static int tpohvga_get_modelist(struct mmp_panel *panel,
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struct mmp_mode **modelist)
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{
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*modelist = mmp_modes_tpohvga;
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return 1;
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}
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static struct mmp_panel panel_tpohvga = {
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.name = "tpohvga",
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.panel_type = PANELTYPE_ACTIVE,
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.get_modelist = tpohvga_get_modelist,
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.set_onoff = tpohvga_onoff,
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};
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static int tpohvga_probe(struct spi_device *spi)
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{
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struct mmp_mach_panel_info *mi;
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int ret;
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struct tpohvga_plat_data *plat_data;
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/* get configs from platform data */
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mi = spi->dev.platform_data;
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if (mi == NULL) {
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dev_err(&spi->dev, "%s: no platform data defined\n", __func__);
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return -EINVAL;
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}
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/* setup spi related info */
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spi->bits_per_word = 16;
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ret = spi_setup(spi);
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if (ret < 0) {
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dev_err(&spi->dev, "spi setup failed %d", ret);
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return ret;
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}
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plat_data = kzalloc(sizeof(*plat_data), GFP_KERNEL);
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if (plat_data == NULL)
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return -ENOMEM;
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plat_data->spi = spi;
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plat_data->plat_onoff = mi->plat_set_onoff;
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panel_tpohvga.plat_data = plat_data;
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panel_tpohvga.plat_path_name = mi->plat_path_name;
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panel_tpohvga.dev = &spi->dev;
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mmp_register_panel(&panel_tpohvga);
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return 0;
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}
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static struct spi_driver panel_tpohvga_driver = {
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.driver = {
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.name = "tpo-hvga",
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},
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.probe = tpohvga_probe,
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};
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module_spi_driver(panel_tpohvga_driver);
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MODULE_AUTHOR("Lisa Du<cldu@marvell.com>");
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MODULE_DESCRIPTION("Panel driver for tpohvga");
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MODULE_LICENSE("GPL");
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