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android_kernel_modules_leno.../intel_media/display/pnw/drv/h8c7_cmd.c

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/*
* Copyright © 2010 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
* Authors:
* Jim Liu <jim.liu@intel.com>
* Jackie Li <yaodong.li@intel.com>
*/
#include "mdfld_dsi_dbi.h"
#include "mdfld_dsi_pkg_sender.h"
#include "mdfld_dsi_esd.h"
#include <linux/gpio.h>
#include <linux/regulator/driver.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,8,0))
#include <linux/regulator/intel_pmic.h>
#endif
#include <linux/regulator/machine.h>
struct h8c7_regulator_factory {
bool h8c7_mmc2_on;
struct regulator *regulator;
};
static struct h8c7_regulator_factory h8c7_regulator_status;
static u8 h8c7_exit_sleep_mode[] = {0x11};
static u8 h8c7_set_tear_on[] = {0x35, 0x00};
static u8 h8c7_set_brightness[] = {0x51, 0x00};
static u8 h8c7_turn_on_backlight[] = {0x53, 0x24};
static u8 h8c7_turn_off_backlight[] = {0x53, 0x00};
static u8 h8c7_disable_cabc[] = {0x55, 0x00};
static u8 h8c7_set_mipi_ctrl[] = {0xba, 0x12, 0x83};
static u8 h8c7_command_mode[] = {0xc2, 0x08};
static u8 h8c7_set_panel[] = {0xcc, 0x08};
static u8 h8c7_set_eq_func_ltps[] = {0xd4, 0x0c};
static u8 h8c7_set_address_mode[] = {0x36, 0x00};
static u8 h8c7_set_te_scanline[] = {0x44, 0x00, 0x00, 0x00};
static u8 h8c7_set_pixel_format[] = {0x3a, 0x77};
static u8 h8c7_mcs_protect_off[] = {0xb9, 0xff, 0x83, 0x92};
static u8 h8c7_mcs_protect_on[] = {0xb9, 0x00, 0x00, 0x00};
static u8 h8c7_set_blanking_opt_2[] = {0xc7, 0x00, 0x40};
static u8 h8c7_mcs_clumn_addr[] = {0x2a, 0x00, 0x00, 0x02, 0xcf};
static u8 h8c7_mcs_page_addr[] = {0x2b, 0x00, 0x00, 0x04, 0xff};
static u8 h8c7_ic_bias_current[] = {
0xbf, 0x05, 0xe0, 0x02,
0x00};
static u8 h8c7_set_power[] = {
0xb1, 0x7c, 0x00, 0x44,
0x94, 0x00, 0x0d, 0x0d,
0x12, 0x1f, 0x3f, 0x3f,
0x42, 0x72};
static u8 h8c7_set_power_dstb[] = {
0xb1, 0x01, 0x01, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00};
static u8 h8c7_set_disp_reg[] = {
0xb2, 0x0f, 0xc8, 0x01,
0x01, 0x06, 0x84, 0x00,
0xff, 0x01, 0x01, 0x06,
0x20};
static u8 h8c7_set_command_cyc[] = {
0xb4, 0x00, 0x00, 0x05,
0x00, 0xa0, 0x05, 0x16,
0x9d, 0x30, 0x03, 0x16,
0x00, 0x03, 0x03, 0x00,
0x1b, 0x04, 0x07, 0x07,
0x01, 0x00, 0x1a, 0x77};
static u8 h8c7_set_ltps_ctrl_output[] = {
0xd5, 0x00, 0x08, 0x08,
0x00, 0x44, 0x55, 0x66,
0x77, 0xcc, 0xcc, 0xcc,
0xcc, 0x00, 0x77, 0x66,
0x55, 0x44, 0xcc, 0xcc,
0xcc, 0xcc};
static u8 h8c7_set_video_cyc[] = {
0xd8, 0x00, 0x00, 0x05,
0x00, 0xa0, 0x05, 0x16,
0x9d, 0x30, 0x03, 0x16,
0x00, 0x03, 0x03, 0x00,
0x1b, 0x04, 0x07, 0x07,
0x01, 0x00, 0x1a, 0x77};
static u8 h8c7_gamma_r[] = {
0xe0, 0x00, 0x1f, 0x23,
0x3f, 0x3f, 0x3f, 0x33,
0x55, 0x06, 0x0e, 0x0e,
0x11, 0x14, 0x12, 0x14,
0x1d, 0x1f, 0x00, 0x1f,
0x23, 0x3f, 0x3f, 0x3f,
0x33, 0x55, 0x06, 0x0e,
0x0e, 0x11, 0x14, 0x12,
0x14, 0x1d, 0x1f};
static u8 h8c7_gamma_g[] = {
0xe1, 0x00, 0x1f, 0x23,
0x3f, 0x3f, 0x3f, 0x33,
0x55, 0x06, 0x0e, 0x0e,
0x11, 0x14, 0x12, 0x14,
0x1d, 0x1f, 0x00, 0x1f,
0x23, 0x3f, 0x3f, 0x3f,
0x33, 0x55, 0x06, 0x0e,
0x0e, 0x11, 0x14, 0x12,
0x14, 0x1d, 0x1f};
static u8 h8c7_gamma_b[] = {
0xe2, 0x00, 0x1f, 0x23,
0x3f, 0x3f, 0x3f, 0x33,
0x55, 0x06, 0x0e, 0x0e,
0x11, 0x14, 0x12, 0x14,
0x1d, 0x1f, 0x00, 0x1f,
0x23, 0x3f, 0x3f, 0x3f,
0x33, 0x55, 0x06, 0x0e,
0x0e, 0x11, 0x14, 0x12,
0x14, 0x1d, 0x1f};
static u8 h8c7_enter_set_cabc[] = {
0xc9, 0x1f, 0x00, 0x1e,
0x1e, 0x00, 0x20, 0x00,
0x01, 0xe3};
static u8 h8c7_set_stba[] = {
0xc0, 0x01, 0x94};
static u8 h8c7_set_cabc_gain[] = {
0xca, 0x40, 0x3d, 0x3a,
0x36, 0x35, 0x34, 0x2d,
0x25, 0x22};
#define MIPI_RESET_GPIO_DEFAULT 128
static
int mdfld_h8c7_drv_ic_init(struct mdfld_dsi_config *dsi_config)
{
struct drm_device *dev = dsi_config->dev;
struct mdfld_dsi_pkg_sender *sender
= mdfld_dsi_get_pkg_sender(dsi_config);
struct mdfld_dsi_hw_registers *regs;
if (!sender)
return -EINVAL;
regs = &dsi_config->regs;
PSB_DEBUG_ENTRY("\n");
sender->status = MDFLD_DSI_PKG_SENDER_FREE;
/* swtich to 2 data lane */
REG_WRITE(regs->device_ready_reg, 0x0);
udelay(1);
REG_WRITE(regs->dsi_func_prg_reg, 0xA002);
udelay(1);
REG_WRITE(regs->device_ready_reg, 0x1);
udelay(1);
mdfld_dsi_send_mcs_short_hs(sender, h8c7_exit_sleep_mode[0], 0, 0, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdelay(150);
/* set password*/
mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_off, 4, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_ic_bias_current, 5, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_power, 14, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_disp_reg, 13, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_command_cyc, 24, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_mipi_ctrl, sizeof(h8c7_set_mipi_ctrl), 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
/* switch back to 3 data lane */
mdfld_dsi_wait_for_fifos_empty(sender);
REG_WRITE(regs->device_ready_reg, 0x0);
udelay(1);
REG_WRITE(regs->dsi_func_prg_reg, 0xA003);
udelay(1);
REG_WRITE(regs->device_ready_reg, 0x1);
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_stba, 3, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_short_hs(sender, h8c7_command_mode[0], h8c7_command_mode[1], 1, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_blanking_opt_2,
sizeof(h8c7_set_blanking_opt_2), 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_panel[0], h8c7_set_panel[1], 1, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_eq_func_ltps[0], h8c7_set_eq_func_ltps[1], 1, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_ltps_ctrl_output, 22, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_video_cyc, 24, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
#if 0
mdfld_dsi_send_mcs_long_lp(sender, h8c7_gamma_r, 35, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_lp(sender, h8c7_gamma_g, 35, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_lp(sender, h8c7_gamma_b, 35, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
#endif
mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_pixel_format[0], h8c7_set_pixel_format[1], 1, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_clumn_addr, 5, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_page_addr, 5, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_address_mode[0], h8c7_set_address_mode[1], 1, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_te_scanline, 4, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_tear_on[0], h8c7_set_tear_on[1], 1, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_enter_set_cabc, 10, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
/* set backlight on*/
mdfld_dsi_send_mcs_short_hs(sender, h8c7_turn_on_backlight[0], h8c7_turn_on_backlight[1], 1 , 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
/* disalble CABC*/
mdfld_dsi_send_mcs_short_hs(sender, h8c7_disable_cabc[0], h8c7_disable_cabc[1], 1, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_on, 4, 0);
if (sender->status == MDFLD_DSI_CONTROL_ABNORMAL)
return -EIO;
mdelay(5);
return 0;
}
static
void mdfld_h8c7_dsi_controller_init(struct mdfld_dsi_config *dsi_config)
{
struct mdfld_dsi_hw_context *hw_ctx = &dsi_config->dsi_hw_context;
struct drm_device *dev = dsi_config->dev;
struct csc_setting csc = { .pipe = 0,
.type = CSC_REG_SETTING,
.enable_state = true,
.data_len = CSC_REG_COUNT,
.data.csc_reg_data = {
0xFFB0424, 0xFDF, 0x4320FF1, 0xFDC, 0xFF50FF5, 0x415}
};
struct gamma_setting gamma = { .pipe = 0,
.type = GAMMA_REG_SETTING,
.enable_state = true,
.data_len = GAMMA_10_BIT_TABLE_COUNT,
.gamma_tableX100 = {
0x000000, 0x030303, 0x050505, 0x070707,
0x090909, 0x0C0C0C, 0x0E0E0E, 0x101010,
0x121212, 0x141414, 0x171717, 0x191919,
0x1B1B1B, 0x1D1D1D, 0x1F1F1F, 0x212121,
0x232323, 0x252525, 0x282828, 0x2A2A2A,
0x2C2C2C, 0x2E2E2E, 0x303030, 0x323232,
0x343434, 0x363636, 0x383838, 0x3A3A3A,
0x3C3C3C, 0x3E3E3E, 0x404040, 0x424242,
0x444444, 0x464646, 0x484848, 0x4A4A4A,
0x4C4C4C, 0x4E4E4E, 0x505050, 0x525252,
0x545454, 0x565656, 0x585858, 0x5A5A5A,
0x5C5C5C, 0x5E5E5E, 0x606060, 0x626262,
0x646464, 0x666666, 0x686868, 0x6A6A6A,
0x6C6C6C, 0x6E6E6E, 0x707070, 0x727272,
0x747474, 0x767676, 0x787878, 0x7A7A7A,
0x7C7C7C, 0x7E7E7E, 0x808080, 0x828282,
0x848484, 0x868686, 0x888888, 0x8A8A8A,
0x8C8C8C, 0x8E8E8E, 0x909090, 0x929292,
0x949494, 0x969696, 0x989898, 0x999999,
0x9B9B9B, 0x9D9D9D, 0x9F9F9F, 0xA1A1A1,
0xA3A3A3, 0xA5A5A5, 0xA7A7A7, 0xA9A9A9,
0xABABAB, 0xADADAD, 0xAFAFAF, 0xB1B1B1,
0xB3B3B3, 0xB5B5B5, 0xB6B6B6, 0xB8B8B8,
0xBABABA, 0xBCBCBC, 0xBEBEBE, 0xC0C0C0,
0xC2C2C2, 0xC4C4C4, 0xC6C6C6, 0xC8C8C8,
0xCACACA, 0xCCCCCC, 0xCECECE, 0xCFCFCF,
0xD1D1D1, 0xD3D3D3, 0xD5D5D5, 0xD7D7D7,
0xD9D9D9, 0xDBDBDB, 0xDDDDDD, 0xDFDFDF,
0xE1E1E1, 0xE3E3E3, 0xE4E4E4, 0xE6E6E6,
0xE8E8E8, 0xEAEAEA, 0xECECEC, 0xEEEEEE,
0xF0F0F0, 0xF2F2F2, 0xF4F4F4, 0xF6F6F6,
0xF7F7F7, 0xF9F9F9, 0xFBFBFB, 0xFDFDFD}
};
PSB_DEBUG_ENTRY("\n");
/*reconfig lane configuration*/
dsi_config->lane_count = 3;
dsi_config->lane_config = MDFLD_DSI_DATA_LANE_3_1;
dsi_config->enable_gamma_csc = ENABLE_GAMMA | ENABLE_CSC;
/* This is for 400 mhz. Set it to 0 for 800mhz */
hw_ctx->cck_div = 1;
hw_ctx->pll_bypass_mode = 0;
hw_ctx->mipi_control = 0x00;
hw_ctx->intr_en = 0xffffffff;
hw_ctx->hs_tx_timeout = 0xffffff;
hw_ctx->lp_rx_timeout = 0xffffff;
hw_ctx->turn_around_timeout = 0x1f;
hw_ctx->device_reset_timer = 0xffff;
hw_ctx->high_low_switch_count = 0x20;
hw_ctx->init_count = 0xf0;
hw_ctx->eot_disable = 0x3;
hw_ctx->lp_byteclk = 0x4;
hw_ctx->clk_lane_switch_time_cnt = 0x20000E;
hw_ctx->hs_ls_dbi_enable = 0x0;
/* HW team suggested 1390 for bandwidth setting */
hw_ctx->dbi_bw_ctrl = 1390;
hw_ctx->dphy_param = 0x20124E1A;
hw_ctx->dsi_func_prg = (0xa000 | dsi_config->lane_count);
hw_ctx->mipi = TE_TRIGGER_GPIO_PIN;
hw_ctx->mipi |= dsi_config->lane_config;
if (dsi_config->enable_gamma_csc & ENABLE_CSC) {
/* setting the tuned csc setting */
drm_psb_enable_color_conversion = 1;
mdfld_intel_crtc_set_color_conversion(dev, &csc);
}
if (dsi_config->enable_gamma_csc & ENABLE_GAMMA) {
/* setting the tuned gamma setting */
drm_psb_enable_gamma = 1;
mdfld_intel_crtc_set_gamma(dev, &gamma);
}
}
static
struct drm_display_mode *h8c7_cmd_get_config_mode(void)
{
struct drm_display_mode *mode;
PSB_DEBUG_ENTRY("\n");
mode = kzalloc(sizeof(*mode), GFP_KERNEL);
if (!mode)
return NULL;
mode->htotal = 920;
mode->hdisplay = 720;
mode->hsync_start = 816;
mode->hsync_end = 824;
mode->vtotal = 1300;
mode->vdisplay = 1280;
mode->vsync_start = 1294;
mode->vsync_end = 1296;
mode->vrefresh = 60;
mode->clock = mode->vrefresh * mode->vtotal * mode->htotal / 1000;
mode->type |= DRM_MODE_TYPE_PREFERRED;
PSB_DEBUG_ENTRY("hdisplay is %d\n", mode->hdisplay);
PSB_DEBUG_ENTRY("vdisplay is %d\n", mode->vdisplay);
PSB_DEBUG_ENTRY("HSS is %d\n", mode->hsync_start);
PSB_DEBUG_ENTRY("HSE is %d\n", mode->hsync_end);
PSB_DEBUG_ENTRY("htotal is %d\n", mode->htotal);
PSB_DEBUG_ENTRY("VSS is %d\n", mode->vsync_start);
PSB_DEBUG_ENTRY("VSE is %d\n", mode->vsync_end);
PSB_DEBUG_ENTRY("vtotal is %d\n", mode->vtotal);
PSB_DEBUG_ENTRY("clock is %d\n", mode->clock);
drm_mode_set_name(mode);
drm_mode_set_crtcinfo(mode, 0);
return mode;
}
static
int mdfld_dsi_h8c7_cmd_power_on(struct mdfld_dsi_config *dsi_config)
{
struct mdfld_dsi_pkg_sender *sender =
mdfld_dsi_get_pkg_sender(dsi_config);
int err = 0;
int enable_err, enabled = 0;
PSB_DEBUG_ENTRY("\n");
if (!sender) {
DRM_ERROR("Failed to get DSI packet sender\n");
return -EINVAL;
}
if (!IS_ERR(h8c7_regulator_status.regulator)) {
if (!h8c7_regulator_status.h8c7_mmc2_on) {
PSB_DEBUG_ENTRY("Before power on, regulator is %d\n",
regulator_is_enabled(h8c7_regulator_status.regulator));
PSB_DEBUG_ENTRY("Begin to power on\n");
h8c7_regulator_status.h8c7_mmc2_on = true;
} else {
DRM_ERROR("power on several times without off\n");
}
enabled = regulator_is_enabled(h8c7_regulator_status.regulator);
enable_err = regulator_enable(h8c7_regulator_status.regulator);
if (enable_err < 0) {
regulator_put(h8c7_regulator_status.regulator);
DRM_ERROR("FATAL:enable h8c7 regulator error\n");
}
/* vemmc2 need 50ms delay due to stability
** If already enabled, no need to wait for this delay.
** This code isn't race proof but since in addition to
** this panel driver only touch driver is enabling this
** regulator and does it after this function has been
** finished, this code works well enough for now.
*/
if (!enabled)
msleep(50);
PSB_DEBUG_ENTRY("After power on, regulator is %d\n",
regulator_is_enabled(h8c7_regulator_status.regulator));
}
/*set tear on*/
err = mdfld_dsi_send_dcs(sender,
set_tear_on,
NULL,
0,
CMD_DATA_SRC_SYSTEM_MEM,
MDFLD_DSI_SEND_PACKAGE);
if (err) {
DRM_ERROR("faild to set_tear_on mode\n");
goto power_err;
}
/*turn on display*/
err = mdfld_dsi_send_dcs(sender,
set_display_on,
NULL,
0,
CMD_DATA_SRC_SYSTEM_MEM,
MDFLD_DSI_SEND_PACKAGE);
if (err) {
DRM_ERROR("faild to set_display_on mode\n");
goto power_err;
}
if (drm_psb_enable_cabc) {
/* turn on cabc */
h8c7_disable_cabc[1] = 0x2;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_disable_cabc,
sizeof(h8c7_disable_cabc), 0);
mdelay(5);
mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_off, 4, 0);
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_cabc_gain, 10, 0);
mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_on, 4, 0);
DRM_INFO("%s enable h8c7 cabc\n", __func__);
}
power_err:
return err;
}
static int mdfld_dsi_h8c7_cmd_power_off(struct mdfld_dsi_config *dsi_config)
{
struct mdfld_dsi_pkg_sender *sender =
mdfld_dsi_get_pkg_sender(dsi_config);
int err = 0;
PSB_DEBUG_ENTRY("\n");
if (!sender) {
DRM_ERROR("Failed to get DSI packet sender\n");
return -EINVAL;
}
/* turn off cabc */
h8c7_disable_cabc[1] = 0x0;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_disable_cabc,
sizeof(h8c7_disable_cabc), 0);
/*turn off backlight*/
err = mdfld_dsi_send_mcs_long_hs(sender, h8c7_turn_off_backlight,
sizeof(h8c7_turn_off_backlight), 0);
if (err) {
DRM_ERROR("%s: failed to turn off backlight\n", __func__);
goto out;
}
mdelay(1);
/*turn off display */
err = mdfld_dsi_send_dcs(sender,
set_display_off,
NULL,
0,
CMD_DATA_SRC_SYSTEM_MEM,
MDFLD_DSI_SEND_PACKAGE);
if (err) {
DRM_ERROR("sent set_display_off faild\n");
goto out;
}
/*set tear off */
err = mdfld_dsi_send_dcs(sender,
set_tear_off,
NULL,
0,
CMD_DATA_SRC_SYSTEM_MEM,
MDFLD_DSI_SEND_PACKAGE);
if (err) {
DRM_ERROR("sent set_tear_off faild\n");
goto out;
}
/*Enter sleep mode */
err = mdfld_dsi_send_dcs(sender,
enter_sleep_mode,
NULL,
0,
CMD_DATA_SRC_SYSTEM_MEM,
MDFLD_DSI_SEND_PACKAGE);
if (err) {
DRM_ERROR("DCS 0x%x sent failed\n", enter_sleep_mode);
goto out;
}
/**
* MIPI spec shows it must wait 5ms
* before sneding next command
*/
mdelay(5);
/*enter deep standby mode*/
err = mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_off, 4, 0);
if (err) {
DRM_ERROR("Failed to turn off protection\n");
goto out;
}
err = mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_power_dstb, 14, 0);
if (err)
DRM_ERROR("Failed to enter DSTB\n");
mdelay(5);
mdfld_dsi_send_mcs_long_hs(sender, h8c7_mcs_protect_on, 4, 0);
out:
if (!IS_ERR(h8c7_regulator_status.regulator)) {
if (h8c7_regulator_status.h8c7_mmc2_on) {
h8c7_regulator_status.h8c7_mmc2_on = false;
PSB_DEBUG_GENERAL("Begin to power off\n");
} else
DRM_ERROR("power off several times without on\n");
regulator_disable(h8c7_regulator_status.regulator);
PSB_DEBUG_GENERAL("After power off, regulator is %d\n",
regulator_is_enabled(h8c7_regulator_status.regulator));
}
return err;
}
static
void h8c7_cmd_get_panel_info(int pipe, struct panel_info *pi)
{
PSB_DEBUG_ENTRY("\n");
if (pipe == 0) {
pi->width_mm = PANEL_4DOT3_WIDTH;
pi->height_mm = PANEL_4DOT3_HEIGHT;
}
}
static
int mdfld_dsi_h8c7_cmd_detect(struct mdfld_dsi_config *dsi_config)
{
int status;
struct drm_device *dev = dsi_config->dev;
struct mdfld_dsi_hw_registers *regs = &dsi_config->regs;
u32 dpll_val, device_ready_val;
int pipe = dsi_config->pipe;
struct mdfld_dsi_pkg_sender *sender =
mdfld_dsi_get_pkg_sender(dsi_config);
PSB_DEBUG_ENTRY("\n");
if (pipe == 0) {
/*
* FIXME: WA to detect the panel connection status, and need to
* implement detection feature with get_power_mode DSI command.
*/
if (!ospm_power_using_hw_begin(OSPM_DISPLAY_ISLAND,
OSPM_UHB_FORCE_POWER_ON)) {
DRM_ERROR("hw begin failed\n");
return -EAGAIN;
}
dpll_val = REG_READ(regs->dpll_reg);
device_ready_val = REG_READ(regs->device_ready_reg);
if ((device_ready_val & DSI_DEVICE_READY) &&
(dpll_val & DPLL_VCO_ENABLE)) {
dsi_config->dsi_hw_context.panel_on = true;
mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_off, 4, 0);
mdfld_dsi_send_gen_long_hs(sender, h8c7_set_disp_reg, 13, 0);
mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_on, 4, 0);
} else {
dsi_config->dsi_hw_context.panel_on = false;
DRM_INFO("%s: panel is not initialized!\n", __func__);
}
status = MDFLD_DSI_PANEL_CONNECTED;
ospm_power_using_hw_end(OSPM_DISPLAY_ISLAND);
} else {
DRM_INFO("%s: do NOT support dual panel\n", __func__);
status = MDFLD_DSI_PANEL_DISCONNECTED;
}
return status;
}
static
int mdfld_dsi_h8c7_cmd_set_brightness(struct mdfld_dsi_config *dsi_config,
int level)
{
struct mdfld_dsi_pkg_sender *sender =
mdfld_dsi_get_pkg_sender(dsi_config);
int duty_val = 0;
static bool b_cabc_initialized = false;
if (!sender) {
DRM_ERROR("Failed to get DSI packet sender\n");
return -EINVAL;
}
if (drm_psb_enable_cabc && !b_cabc_initialized) {
h8c7_disable_cabc[1] = 0x2;
mdfld_dsi_send_mcs_long_hs(sender, h8c7_disable_cabc,
sizeof(h8c7_disable_cabc), 0);
mdelay(5);
mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_off, 4, 0);
mdfld_dsi_send_mcs_long_hs(sender, h8c7_set_cabc_gain, 10, 0);
mdfld_dsi_send_gen_long_hs(sender, h8c7_mcs_protect_on, 4, 0);
b_cabc_initialized = true;
}
duty_val = (255 * level) / 100;
h8c7_set_brightness[1] = duty_val;
mdfld_dsi_send_mcs_short_hs(sender, h8c7_set_brightness[0], h8c7_set_brightness[1], 1, 0);
return 0;
}
static
int mdfld_dsi_h8c7_cmd_panel_reset(struct mdfld_dsi_config *dsi_config)
{
static int mipi_reset_gpio;
int ret = 0;
PSB_DEBUG_ENTRY("\n");
if (mipi_reset_gpio == 0) {
ret = get_gpio_by_name("mipi-reset");
if (ret < 0) {
DRM_ERROR("Faild to get panel reset gpio, " \
"use default reset pin\n");
ret = 128;
}
mipi_reset_gpio = ret;
ret = gpio_request(mipi_reset_gpio, "mipi_display");
if (ret) {
DRM_ERROR("Faild to request panel reset gpio\n");
return -EINVAL;
}
gpio_direction_output(mipi_reset_gpio, 0);
}
gpio_set_value_cansleep(mipi_reset_gpio, 0);
mdelay(11);
gpio_set_value_cansleep(mipi_reset_gpio, 1);
mdelay(5);
return 0;
}
void h8c7_cmd_init(struct drm_device *dev, struct panel_funcs *p_funcs)
{
int ena_err;
if (!dev || !p_funcs) {
DRM_ERROR("Invalid parameters\n");
return;
}
PSB_DEBUG_ENTRY("\n");
p_funcs->get_config_mode = h8c7_cmd_get_config_mode;
p_funcs->get_panel_info = h8c7_cmd_get_panel_info;
p_funcs->reset = mdfld_dsi_h8c7_cmd_panel_reset;
p_funcs->drv_ic_init = mdfld_h8c7_drv_ic_init;
p_funcs->dsi_controller_init = mdfld_h8c7_dsi_controller_init;
p_funcs->detect = mdfld_dsi_h8c7_cmd_detect;
p_funcs->power_on = mdfld_dsi_h8c7_cmd_power_on;
p_funcs->power_off = mdfld_dsi_h8c7_cmd_power_off;
p_funcs->set_brightness = mdfld_dsi_h8c7_cmd_set_brightness;
/* Please check the file pmic_avp.c for the correct regulator name */
h8c7_regulator_status.regulator = regulator_get(NULL, "vemmc2");
if (IS_ERR(h8c7_regulator_status.regulator)) {
DRM_ERROR("H8C7 device failed to get mmc regulator\n");
return ;
}
h8c7_regulator_status.h8c7_mmc2_on =
regulator_is_enabled(h8c7_regulator_status.regulator);
if (h8c7_regulator_status.h8c7_mmc2_on) {
ena_err = regulator_enable(h8c7_regulator_status.regulator);
if (ena_err < 0) {
regulator_put(h8c7_regulator_status.regulator);
DRM_ERROR("FATAL:enable h8c7 regulator error\n");
}
}
/*Temperory Work Around to keep VEMMC2 rail ON as current display
panel doesnt support this */
ena_err = regulator_enable(h8c7_regulator_status.regulator);
if (ena_err < 0) {
regulator_put(h8c7_regulator_status.regulator);
DRM_ERROR("FATAL:enable h8c7 regulator error in WA\n");
}
}
static int h8c7_lcd_cmd_probe(struct platform_device *pdev)
{
DRM_INFO("%s: H8C7 panel detected\n", __func__);
intel_mid_panel_register(h8c7_cmd_init);
return 0;
}
struct platform_driver h8c7_lcd_driver = {
.probe = h8c7_lcd_cmd_probe,
.driver = {
.name = "H8C7 CMD RHB",
.owner = THIS_MODULE,
},
};
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