diff options
Diffstat (limited to 'drivers/video/exynos_mipi_dsi_lowlevel.c')
| -rw-r--r-- | drivers/video/exynos_mipi_dsi_lowlevel.c | 652 |
1 files changed, 652 insertions, 0 deletions
diff --git a/drivers/video/exynos_mipi_dsi_lowlevel.c b/drivers/video/exynos_mipi_dsi_lowlevel.c new file mode 100644 index 0000000000..d61b773616 --- /dev/null +++ b/drivers/video/exynos_mipi_dsi_lowlevel.c @@ -0,0 +1,652 @@ +/* + * Copyright (C) 2012 Samsung Electronics + * + * Author: InKi Dae <inki.dae@samsung.com> + * Author: Donghwa Lee <dh09.lee@samsung.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#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, unsigned int data0, unsigned int 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); +} |