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upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/drivers/video/exynos_mipi_dsi_lowlevel.c

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/*
* Copyright (C) 2012 Samsung Electronics
*
* Author: InKi Dae <inki.dae@samsung.com>
* Author: Donghwa Lee <dh09.lee@samsung.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/dsim.h>
#include <asm/arch/mipi_dsim.h>
#include <asm/arch/power.h>
#include <asm/arch/cpu.h>
#include "exynos_mipi_dsi_lowlevel.h"
#include "exynos_mipi_dsi_common.h"
void exynos_mipi_dsi_func_reset(struct mipi_dsim_device *dsim)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = readl(&mipi_dsim->swrst);
reg |= DSIM_FUNCRST;
writel(reg, &mipi_dsim->swrst);
}
void exynos_mipi_dsi_sw_reset(struct mipi_dsim_device *dsim)
{
unsigned int reg = 0;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = readl(&mipi_dsim->swrst);
reg |= DSIM_SWRST;
reg |= DSIM_FUNCRST;
writel(reg, &mipi_dsim->swrst);
}
void exynos_mipi_dsi_sw_release(struct mipi_dsim_device *dsim)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->intsrc);
reg |= INTSRC_SWRST_RELEASE;
writel(reg, &mipi_dsim->intsrc);
}
void exynos_mipi_dsi_set_interrupt_mask(struct mipi_dsim_device *dsim,
unsigned int mode, unsigned int mask)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->intmsk);
if (mask)
reg |= mode;
else
reg &= ~mode;
writel(reg, &mipi_dsim->intmsk);
}
void exynos_mipi_dsi_init_fifo_pointer(struct mipi_dsim_device *dsim,
unsigned int cfg)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = readl(&mipi_dsim->fifoctrl);
writel(reg & ~(cfg), &mipi_dsim->fifoctrl);
udelay(10 * 1000);
reg |= cfg;
writel(reg, &mipi_dsim->fifoctrl);
}
/*
* this function set PLL P, M and S value in D-PHY
*/
void exynos_mipi_dsi_set_phy_tunning(struct mipi_dsim_device *dsim,
unsigned int value)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
writel(DSIM_AFC_CTL(value), &mipi_dsim->phyacchr);
}
void exynos_mipi_dsi_set_main_disp_resol(struct mipi_dsim_device *dsim,
unsigned int width_resol, unsigned int height_resol)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
/* standby should be set after configuration so set to not ready*/
reg = (readl(&mipi_dsim->mdresol)) & ~(DSIM_MAIN_STAND_BY);
writel(reg, &mipi_dsim->mdresol);
/* reset resolution */
reg &= ~(DSIM_MAIN_VRESOL(0x7ff) | DSIM_MAIN_HRESOL(0x7ff));
reg |= DSIM_MAIN_VRESOL(height_resol) | DSIM_MAIN_HRESOL(width_resol);
reg |= DSIM_MAIN_STAND_BY;
writel(reg, &mipi_dsim->mdresol);
}
void exynos_mipi_dsi_set_main_disp_vporch(struct mipi_dsim_device *dsim,
unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = (readl(&mipi_dsim->mvporch)) &
~((DSIM_CMD_ALLOW_MASK) | (DSIM_STABLE_VFP_MASK) |
(DSIM_MAIN_VBP_MASK));
reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
writel(reg, &mipi_dsim->mvporch);
}
void exynos_mipi_dsi_set_main_disp_hporch(struct mipi_dsim_device *dsim,
unsigned int front, unsigned int back)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = (readl(&mipi_dsim->mhporch)) &
~((DSIM_MAIN_HFP_MASK) | (DSIM_MAIN_HBP_MASK));
reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
writel(reg, &mipi_dsim->mhporch);
}
void exynos_mipi_dsi_set_main_disp_sync_area(struct mipi_dsim_device *dsim,
unsigned int vert, unsigned int hori)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = (readl(&mipi_dsim->msync)) &
~((DSIM_MAIN_VSA_MASK) | (DSIM_MAIN_HSA_MASK));
reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
(hori << DSIM_MAIN_HSA_SHIFT);
writel(reg, &mipi_dsim->msync);
}
void exynos_mipi_dsi_set_sub_disp_resol(struct mipi_dsim_device *dsim,
unsigned int vert, unsigned int hori)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = (readl(&mipi_dsim->sdresol)) &
~(DSIM_SUB_STANDY_MASK);
writel(reg, &mipi_dsim->sdresol);
reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
writel(reg, &mipi_dsim->sdresol);
/* DSIM STANDBY */
reg |= (1 << DSIM_SUB_STANDY_SHIFT);
writel(reg, &mipi_dsim->sdresol);
}
void exynos_mipi_dsi_init_config(struct mipi_dsim_device *dsim)
{
struct mipi_dsim_config *dsim_config = dsim->dsim_config;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int cfg = (readl(&mipi_dsim->config)) &
~((1 << DSIM_EOT_PACKET_SHIFT) |
(0x1f << DSIM_HSA_MODE_SHIFT) |
(0x3 << DSIM_NUM_OF_DATALANE_SHIFT));
cfg |= (dsim_config->auto_flush << DSIM_AUTO_FLUSH_SHIFT) |
(dsim_config->eot_disable << DSIM_EOT_PACKET_SHIFT) |
(dsim_config->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
(dsim_config->hse << DSIM_HSE_MODE_SHIFT) |
(dsim_config->hfp << DSIM_HFP_MODE_SHIFT) |
(dsim_config->hbp << DSIM_HBP_MODE_SHIFT) |
(dsim_config->hsa << DSIM_HSA_MODE_SHIFT) |
(dsim_config->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
writel(cfg, &mipi_dsim->config);
}
void exynos_mipi_dsi_display_config(struct mipi_dsim_device *dsim,
struct mipi_dsim_config *dsim_config)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
u32 reg = (readl(&mipi_dsim->config)) &
~((0x3 << DSIM_BURST_MODE_SHIFT) | (1 << DSIM_VIDEO_MODE_SHIFT)
| (0x3 << DSIM_MAINVC_SHIFT) | (0x7 << DSIM_MAINPIX_SHIFT)
| (0x3 << DSIM_SUBVC_SHIFT) | (0x7 << DSIM_SUBPIX_SHIFT));
if (dsim_config->e_interface == DSIM_VIDEO)
reg |= (1 << DSIM_VIDEO_MODE_SHIFT);
else if (dsim_config->e_interface == DSIM_COMMAND)
reg &= ~(1 << DSIM_VIDEO_MODE_SHIFT);
else {
printf("unknown lcd type.\n");
return;
}
/* main lcd */
reg |= ((u8) (dsim_config->e_burst_mode) & 0x3) << DSIM_BURST_MODE_SHIFT
| ((u8) (dsim_config->e_virtual_ch) & 0x3) << DSIM_MAINVC_SHIFT
| ((u8) (dsim_config->e_pixel_format) & 0x7) << DSIM_MAINPIX_SHIFT;
writel(reg, &mipi_dsim->config);
}
void exynos_mipi_dsi_enable_lane(struct mipi_dsim_device *dsim,
unsigned int lane, unsigned int enable)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = readl(&mipi_dsim->config);
if (enable)
reg |= DSIM_LANE_ENx(lane);
else
reg &= ~DSIM_LANE_ENx(lane);
writel(reg, &mipi_dsim->config);
}
void exynos_mipi_dsi_set_data_lane_number(struct mipi_dsim_device *dsim,
unsigned int count)
{
unsigned int cfg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
/* get the data lane number. */
cfg = DSIM_NUM_OF_DATA_LANE(count);
writel(cfg, &mipi_dsim->config);
}
void exynos_mipi_dsi_enable_afc(struct mipi_dsim_device *dsim,
unsigned int enable, unsigned int afc_code)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->phyacchr);
reg = 0;
if (enable) {
reg |= DSIM_AFC_EN;
reg &= ~(0x7 << DSIM_AFC_CTL_SHIFT);
reg |= DSIM_AFC_CTL(afc_code);
} else
reg &= ~DSIM_AFC_EN;
writel(reg, &mipi_dsim->phyacchr);
}
void exynos_mipi_dsi_enable_pll_bypass(struct mipi_dsim_device *dsim,
unsigned int enable)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
~(DSIM_PLL_BYPASS_EXTERNAL);
reg |= enable << DSIM_PLL_BYPASS_SHIFT;
writel(reg, &mipi_dsim->clkctrl);
}
void exynos_mipi_dsi_pll_freq_band(struct mipi_dsim_device *dsim,
unsigned int freq_band)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
~(0x1f << DSIM_FREQ_BAND_SHIFT);
reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
writel(reg, &mipi_dsim->pllctrl);
}
void exynos_mipi_dsi_pll_freq(struct mipi_dsim_device *dsim,
unsigned int pre_divider, unsigned int main_divider,
unsigned int scaler)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
~(0x7ffff << 1);
reg |= ((pre_divider & 0x3f) << DSIM_PREDIV_SHIFT) |
((main_divider & 0x1ff) << DSIM_MAIN_SHIFT) |
((scaler & 0x7) << DSIM_SCALER_SHIFT);
writel(reg, &mipi_dsim->pllctrl);
}
void exynos_mipi_dsi_pll_stable_time(struct mipi_dsim_device *dsim,
unsigned int lock_time)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
writel(lock_time, &mipi_dsim->plltmr);
}
void exynos_mipi_dsi_enable_pll(struct mipi_dsim_device *dsim,
unsigned int enable)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
~(0x1 << DSIM_PLL_EN_SHIFT);
reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
writel(reg, &mipi_dsim->pllctrl);
}
void exynos_mipi_dsi_set_byte_clock_src(struct mipi_dsim_device *dsim,
unsigned int src)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
writel(reg, &mipi_dsim->clkctrl);
}
void exynos_mipi_dsi_enable_byte_clock(struct mipi_dsim_device *dsim,
unsigned int enable)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
~(1 << DSIM_BYTE_CLKEN_SHIFT);
reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
writel(reg, &mipi_dsim->clkctrl);
}
void exynos_mipi_dsi_set_esc_clk_prs(struct mipi_dsim_device *dsim,
unsigned int enable, unsigned int prs_val)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
~((1 << DSIM_ESC_CLKEN_SHIFT) | (0xffff));
reg |= enable << DSIM_ESC_CLKEN_SHIFT;
if (enable)
reg |= prs_val;
writel(reg, &mipi_dsim->clkctrl);
}
void exynos_mipi_dsi_enable_esc_clk_on_lane(struct mipi_dsim_device *dsim,
unsigned int lane_sel, unsigned int enable)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->clkctrl);
if (enable)
reg |= DSIM_LANE_ESC_CLKEN(lane_sel);
else
reg &= ~DSIM_LANE_ESC_CLKEN(lane_sel);
writel(reg, &mipi_dsim->clkctrl);
}
void exynos_mipi_dsi_force_dphy_stop_state(struct mipi_dsim_device *dsim,
unsigned int enable)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->escmode)) &
~(0x1 << DSIM_FORCE_STOP_STATE_SHIFT);
reg |= ((enable & 0x1) << DSIM_FORCE_STOP_STATE_SHIFT);
writel(reg, &mipi_dsim->escmode);
}
unsigned int exynos_mipi_dsi_is_lane_state(struct mipi_dsim_device *dsim)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->status);
/**
* check clock and data lane states.
* if MIPI-DSI controller was enabled at bootloader then
* TX_READY_HS_CLK is enabled otherwise STOP_STATE_CLK.
* so it should be checked for two case.
*/
if ((reg & DSIM_STOP_STATE_DAT(0xf)) &&
((reg & DSIM_STOP_STATE_CLK) ||
(reg & DSIM_TX_READY_HS_CLK)))
return 1;
else
return 0;
}
void exynos_mipi_dsi_set_stop_state_counter(struct mipi_dsim_device *dsim,
unsigned int cnt_val)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->escmode)) &
~(0x7ff << DSIM_STOP_STATE_CNT_SHIFT);
reg |= ((cnt_val & 0x7ff) << DSIM_STOP_STATE_CNT_SHIFT);
writel(reg, &mipi_dsim->escmode);
}
void exynos_mipi_dsi_set_bta_timeout(struct mipi_dsim_device *dsim,
unsigned int timeout)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->timeout)) &
~(0xff << DSIM_BTA_TOUT_SHIFT);
reg |= (timeout << DSIM_BTA_TOUT_SHIFT);
writel(reg, &mipi_dsim->timeout);
}
void exynos_mipi_dsi_set_lpdr_timeout(struct mipi_dsim_device *dsim,
unsigned int timeout)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->timeout)) &
~(0xffff << DSIM_LPDR_TOUT_SHIFT);
reg |= (timeout << DSIM_LPDR_TOUT_SHIFT);
writel(reg, &mipi_dsim->timeout);
}
void exynos_mipi_dsi_set_cpu_transfer_mode(struct mipi_dsim_device *dsim,
unsigned int lp)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->escmode);
reg &= ~DSIM_CMD_LPDT_LP;
if (lp)
reg |= DSIM_CMD_LPDT_LP;
writel(reg, &mipi_dsim->escmode);
}
void exynos_mipi_dsi_set_lcdc_transfer_mode(struct mipi_dsim_device *dsim,
unsigned int lp)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->escmode);
reg &= ~DSIM_TX_LPDT_LP;
if (lp)
reg |= DSIM_TX_LPDT_LP;
writel(reg, &mipi_dsim->escmode);
}
void exynos_mipi_dsi_enable_hs_clock(struct mipi_dsim_device *dsim,
unsigned int enable)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
~(1 << DSIM_TX_REQUEST_HSCLK_SHIFT);
reg |= enable << DSIM_TX_REQUEST_HSCLK_SHIFT;
writel(reg, &mipi_dsim->clkctrl);
}
void exynos_mipi_dsi_dp_dn_swap(struct mipi_dsim_device *dsim,
unsigned int swap_en)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->phyacchr1);
reg &= ~(0x3 << DSIM_DPDN_SWAP_DATA_SHIFT);
reg |= (swap_en & 0x3) << DSIM_DPDN_SWAP_DATA_SHIFT;
writel(reg, &mipi_dsim->phyacchr1);
}
void exynos_mipi_dsi_hs_zero_ctrl(struct mipi_dsim_device *dsim,
unsigned int hs_zero)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
~(0xf << DSIM_ZEROCTRL_SHIFT);
reg |= ((hs_zero & 0xf) << DSIM_ZEROCTRL_SHIFT);
writel(reg, &mipi_dsim->pllctrl);
}
void exynos_mipi_dsi_prep_ctrl(struct mipi_dsim_device *dsim, unsigned int prep)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
~(0x7 << DSIM_PRECTRL_SHIFT);
reg |= ((prep & 0x7) << DSIM_PRECTRL_SHIFT);
writel(reg, &mipi_dsim->pllctrl);
}
void exynos_mipi_dsi_clear_interrupt(struct mipi_dsim_device *dsim)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->intsrc);
reg |= INTSRC_PLL_STABLE;
writel(reg, &mipi_dsim->intsrc);
}
void exynos_mipi_dsi_clear_all_interrupt(struct mipi_dsim_device *dsim)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
writel(0xffffffff, &mipi_dsim->intsrc);
}
unsigned int exynos_mipi_dsi_is_pll_stable(struct mipi_dsim_device *dsim)
{
unsigned int reg;
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
reg = readl(&mipi_dsim->status);
return reg & DSIM_PLL_STABLE ? 1 : 0;
}
unsigned int exynos_mipi_dsi_get_fifo_state(struct mipi_dsim_device *dsim)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
return readl(&mipi_dsim->fifoctrl) & ~(0x1f);
}
void exynos_mipi_dsi_wr_tx_header(struct mipi_dsim_device *dsim,
unsigned int di, const unsigned char data0, const unsigned char data1)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = (DSIM_PKTHDR_DAT1(data1) | DSIM_PKTHDR_DAT0(data0) |
DSIM_PKTHDR_DI(di));
writel(reg, &mipi_dsim->pkthdr);
}
unsigned int _exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device
*dsim)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->intsrc);
return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
}
void _exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
unsigned int reg = readl(&mipi_dsim->intsrc);
writel(reg | INTSRC_FRAME_DONE, &mipi_dsim->intsrc);
}
void exynos_mipi_dsi_wr_tx_data(struct mipi_dsim_device *dsim,
unsigned int tx_data)
{
struct exynos_mipi_dsim *mipi_dsim =
(struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
writel(tx_data, &mipi_dsim->payload);
}