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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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cb6c01ead1
R61307 is liquid crystal driver for high-definition amorphous silicon (a-Si) panels and is ideal for tablets and smartphones. Supported compatibles are: - hit,tx13d100vm0eaa - koe,tx13d100vm0eaa Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250506092718.106088-3-clamor95@gmail.com Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
326 lines
8.0 KiB
C
326 lines
8.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/array_size.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/gpio/consumer.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/property.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_modes.h>
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#include <drm/drm_panel.h>
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#define R61307_MACP 0xb0 /* Manufacturer CMD Protect */
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#define R61307_MACP_ON 0x03
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#define R61307_MACP_OFF 0x04
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#define R61307_INVERSION 0xc1
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#define R61307_GAMMA_SET_A 0xc8 /* Gamma Setting A */
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#define R61307_GAMMA_SET_B 0xc9 /* Gamma Setting B */
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#define R61307_GAMMA_SET_C 0xca /* Gamma Setting C */
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#define R61307_CONTRAST_SET 0xcc
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struct renesas_r61307 {
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struct drm_panel panel;
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struct mipi_dsi_device *dsi;
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struct regulator *vcc_supply;
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struct regulator *iovcc_supply;
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struct gpio_desc *reset_gpio;
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bool prepared;
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bool dig_cont_adj;
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bool inversion;
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u32 gamma;
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};
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static const u8 gamma_setting[][25] = {
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{ /* sentinel */ },
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{
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R61307_GAMMA_SET_A,
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0x00, 0x06, 0x0a, 0x0f,
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0x14, 0x1f, 0x1f, 0x17,
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0x12, 0x0c, 0x09, 0x06,
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0x00, 0x06, 0x0a, 0x0f,
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0x14, 0x1f, 0x1f, 0x17,
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0x12, 0x0c, 0x09, 0x06
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},
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{
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R61307_GAMMA_SET_A,
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0x00, 0x05, 0x0b, 0x0f,
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0x11, 0x1d, 0x20, 0x18,
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0x18, 0x09, 0x07, 0x06,
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0x00, 0x05, 0x0b, 0x0f,
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0x11, 0x1d, 0x20, 0x18,
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0x18, 0x09, 0x07, 0x06
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},
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{
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R61307_GAMMA_SET_A,
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0x0b, 0x0d, 0x10, 0x14,
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0x13, 0x1d, 0x20, 0x18,
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0x12, 0x09, 0x07, 0x06,
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0x0a, 0x0c, 0x10, 0x14,
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0x13, 0x1d, 0x20, 0x18,
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0x12, 0x09, 0x07, 0x06
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},
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};
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static inline struct renesas_r61307 *to_renesas_r61307(struct drm_panel *panel)
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{
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return container_of(panel, struct renesas_r61307, panel);
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}
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static void renesas_r61307_reset(struct renesas_r61307 *priv)
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{
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gpiod_set_value_cansleep(priv->reset_gpio, 1);
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usleep_range(10000, 11000);
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gpiod_set_value_cansleep(priv->reset_gpio, 0);
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usleep_range(2000, 3000);
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}
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static int renesas_r61307_prepare(struct drm_panel *panel)
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{
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struct renesas_r61307 *priv = to_renesas_r61307(panel);
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struct device *dev = &priv->dsi->dev;
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int ret;
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if (priv->prepared)
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return 0;
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ret = regulator_enable(priv->vcc_supply);
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if (ret) {
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dev_err(dev, "failed to enable vcc power supply\n");
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return ret;
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}
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usleep_range(2000, 3000);
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ret = regulator_enable(priv->iovcc_supply);
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if (ret) {
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dev_err(dev, "failed to enable iovcc power supply\n");
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return ret;
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}
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usleep_range(2000, 3000);
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renesas_r61307_reset(priv);
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priv->prepared = true;
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return 0;
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}
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static int renesas_r61307_enable(struct drm_panel *panel)
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{
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struct renesas_r61307 *priv = to_renesas_r61307(panel);
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struct mipi_dsi_multi_context ctx = { .dsi = priv->dsi };
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mipi_dsi_dcs_exit_sleep_mode_multi(&ctx);
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mipi_dsi_msleep(&ctx, 80);
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mipi_dsi_dcs_write_seq_multi(&ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
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mipi_dsi_msleep(&ctx, 20);
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mipi_dsi_dcs_set_pixel_format_multi(&ctx, MIPI_DCS_PIXEL_FMT_24BIT << 4);
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/* MACP Off */
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mipi_dsi_generic_write_seq_multi(&ctx, R61307_MACP, R61307_MACP_OFF);
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if (priv->dig_cont_adj)
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mipi_dsi_generic_write_seq_multi(&ctx, R61307_CONTRAST_SET,
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0xdc, 0xb4, 0xff);
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if (priv->gamma)
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mipi_dsi_generic_write_multi(&ctx, gamma_setting[priv->gamma],
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sizeof(gamma_setting[priv->gamma]));
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if (priv->inversion)
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mipi_dsi_generic_write_seq_multi(&ctx, R61307_INVERSION,
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0x00, 0x50, 0x03, 0x22,
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0x16, 0x06, 0x60, 0x11);
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else
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mipi_dsi_generic_write_seq_multi(&ctx, R61307_INVERSION,
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0x00, 0x10, 0x03, 0x22,
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0x16, 0x06, 0x60, 0x01);
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/* MACP On */
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mipi_dsi_generic_write_seq_multi(&ctx, R61307_MACP, R61307_MACP_ON);
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mipi_dsi_dcs_set_display_on_multi(&ctx);
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mipi_dsi_msleep(&ctx, 50);
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return 0;
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}
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static int renesas_r61307_disable(struct drm_panel *panel)
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{
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struct renesas_r61307 *priv = to_renesas_r61307(panel);
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struct mipi_dsi_multi_context ctx = { .dsi = priv->dsi };
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mipi_dsi_dcs_set_display_off_multi(&ctx);
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mipi_dsi_msleep(&ctx, 100);
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mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
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return 0;
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}
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static int renesas_r61307_unprepare(struct drm_panel *panel)
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{
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struct renesas_r61307 *priv = to_renesas_r61307(panel);
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if (!priv->prepared)
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return 0;
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usleep_range(10000, 11000);
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gpiod_set_value_cansleep(priv->reset_gpio, 1);
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usleep_range(5000, 6000);
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regulator_disable(priv->iovcc_supply);
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usleep_range(2000, 3000);
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regulator_disable(priv->vcc_supply);
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priv->prepared = false;
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return 0;
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}
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static const struct drm_display_mode renesas_r61307_mode = {
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.clock = (768 + 116 + 81 + 5) * (1024 + 24 + 8 + 2) * 60 / 1000,
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.hdisplay = 768,
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.hsync_start = 768 + 116,
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.hsync_end = 768 + 116 + 81,
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.htotal = 768 + 116 + 81 + 5,
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.vdisplay = 1024,
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.vsync_start = 1024 + 24,
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.vsync_end = 1024 + 24 + 8,
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.vtotal = 1024 + 24 + 8 + 2,
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.width_mm = 76,
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.height_mm = 101,
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};
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static int renesas_r61307_get_modes(struct drm_panel *panel,
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struct drm_connector *connector)
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{
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struct drm_display_mode *mode;
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mode = drm_mode_duplicate(connector->dev, &renesas_r61307_mode);
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if (!mode)
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return -ENOMEM;
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drm_mode_set_name(mode);
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mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
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connector->display_info.width_mm = mode->width_mm;
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connector->display_info.height_mm = mode->height_mm;
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drm_mode_probed_add(connector, mode);
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return 1;
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}
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static const struct drm_panel_funcs renesas_r61307_panel_funcs = {
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.prepare = renesas_r61307_prepare,
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.enable = renesas_r61307_enable,
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.disable = renesas_r61307_disable,
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.unprepare = renesas_r61307_unprepare,
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.get_modes = renesas_r61307_get_modes,
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};
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static int renesas_r61307_probe(struct mipi_dsi_device *dsi)
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{
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struct device *dev = &dsi->dev;
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struct renesas_r61307 *priv;
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int ret;
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priv = devm_drm_panel_alloc(dev, struct renesas_r61307, panel,
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&renesas_r61307_panel_funcs,
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DRM_MODE_CONNECTOR_DSI);
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if (IS_ERR(priv))
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return PTR_ERR(priv);
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priv->vcc_supply = devm_regulator_get(dev, "vcc");
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if (IS_ERR(priv->vcc_supply))
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return dev_err_probe(dev, PTR_ERR(priv->vcc_supply),
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"Failed to get vcc-supply\n");
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priv->iovcc_supply = devm_regulator_get(dev, "iovcc");
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if (IS_ERR(priv->iovcc_supply))
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return dev_err_probe(dev, PTR_ERR(priv->iovcc_supply),
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"Failed to get iovcc-supply\n");
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priv->reset_gpio = devm_gpiod_get_optional(dev, "reset",
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GPIOD_OUT_HIGH);
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if (IS_ERR(priv->reset_gpio))
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return dev_err_probe(dev, PTR_ERR(priv->reset_gpio),
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"Failed to get reset gpios\n");
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if (device_property_read_bool(dev, "renesas,inversion"))
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priv->inversion = true;
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if (device_property_read_bool(dev, "renesas,contrast"))
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priv->dig_cont_adj = true;
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priv->gamma = 0;
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device_property_read_u32(dev, "renesas,gamma", &priv->gamma);
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priv->dsi = dsi;
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mipi_dsi_set_drvdata(dsi, priv);
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dsi->lanes = 4;
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dsi->format = MIPI_DSI_FMT_RGB888;
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dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
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MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
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ret = drm_panel_of_backlight(&priv->panel);
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if (ret)
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return dev_err_probe(dev, ret, "Failed to get backlight\n");
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drm_panel_add(&priv->panel);
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ret = mipi_dsi_attach(dsi);
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if (ret) {
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drm_panel_remove(&priv->panel);
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return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
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}
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return 0;
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}
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static void renesas_r61307_remove(struct mipi_dsi_device *dsi)
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{
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struct renesas_r61307 *priv = mipi_dsi_get_drvdata(dsi);
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int ret;
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ret = mipi_dsi_detach(dsi);
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if (ret)
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dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
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drm_panel_remove(&priv->panel);
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}
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static const struct of_device_id renesas_r61307_of_match[] = {
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{ .compatible = "hit,tx13d100vm0eaa" },
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{ .compatible = "koe,tx13d100vm0eaa" },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, renesas_r61307_of_match);
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static struct mipi_dsi_driver renesas_r61307_driver = {
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.probe = renesas_r61307_probe,
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.remove = renesas_r61307_remove,
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.driver = {
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.name = "panel-renesas-r61307",
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.of_match_table = renesas_r61307_of_match,
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},
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};
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module_mipi_dsi_driver(renesas_r61307_driver);
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MODULE_AUTHOR("Svyatoslav Ryhel <clamor95@gmail.com>");
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MODULE_DESCRIPTION("Renesas R61307-based panel driver");
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MODULE_LICENSE("GPL");
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