[PATCH 11/11] drm: bridge: samsung-dsim: Add i.MX8MM support

Jagan Teki
2022-04-08T16:28:00Z

Samsung MIPI DSIM master can also be found in i.MX8MM SoC.

Add compatible and associated driver_data for it.

v1:
* none

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
drivers/gpu/drm/bridge/samsung-dsim.c | 34 +++++++++++++++++++++++++++
1 file changed, 34 insertions(+)

diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c
index 71bbaf19f530..d91510a51981 100644
--- a/drivers/gpu/drm/bridge/samsung-dsim.c
+++ b/drivers/gpu/drm/bridge/samsung-dsim.c
@@ -360,6 +360,24 @@ static const unsigned int exynos5433_reg_values[] = {
[PHYTIMING_HS_TRAIL] = DSIM_PHYTIMING2_HS_TRAIL(0x0c),
};

+static const unsigned int imx8mm_dsim_reg_values[] = {
+ [RESET_TYPE] = DSIM_SWRST,
+ [PLL_TIMER] = 500,
+ [STOP_STATE_CNT] = 0xf,
+ [PHYCTRL_ULPS_EXIT] = 0,
+ [PHYCTRL_VREG_LP] = 0,
+ [PHYCTRL_SLEW_UP] = 0,
+ [PHYTIMING_LPX] = DSIM_PHYTIMING_LPX(0x06),
+ [PHYTIMING_HS_EXIT] = DSIM_PHYTIMING_HS_EXIT(0x0b),
+ [PHYTIMING_CLK_PREPARE] = DSIM_PHYTIMING1_CLK_PREPARE(0x07),
+ [PHYTIMING_CLK_ZERO] = DSIM_PHYTIMING1_CLK_ZERO(0x26),
+ [PHYTIMING_CLK_POST] = DSIM_PHYTIMING1_CLK_POST(0x0d),
+ [PHYTIMING_CLK_TRAIL] = DSIM_PHYTIMING1_CLK_TRAIL(0x08),
+ [PHYTIMING_HS_PREPARE] = DSIM_PHYTIMING2_HS_PREPARE(0x08),
+ [PHYTIMING_HS_ZERO] = DSIM_PHYTIMING2_HS_ZERO(0x0d),
+ [PHYTIMING_HS_TRAIL] = DSIM_PHYTIMING2_HS_TRAIL(0x0b),
+};
+
static const struct samsung_dsim_driver_data exynos3_dsi_driver_data = {
.reg_ofs = exynos_reg_ofs,
.plltmr_reg = 0x50,
@@ -426,6 +444,18 @@ static const struct samsung_dsim_driver_data exynos5422_dsi_driver_data = {
.platform_init = true,
};

+static const struct samsung_dsim_driver_data imx8mm_dsi_driver_data = {
+ .reg_ofs = exynos5433_reg_ofs,
+ .plltmr_reg = 0xa0,
+ .has_clklane_stop = 1,
+ .num_clks = 2,
+ .max_freq = 2100,
+ .wait_for_reset = 0,
+ .num_bits_resol = 12,
+ .pll_p_offset = 14,
+ .reg_values = imx8mm_dsim_reg_values,
+};
+
static const struct of_device_id samsung_dsim_of_match[] = {
{
.compatible = "samsung,exynos3250-mipi-dsi",
@@ -447,6 +477,10 @@ static const struct of_device_id samsung_dsim_of_match[] = {
.compatible = "samsung,exynos5433-mipi-dsi",
.data = &exynos5433_dsi_driver_data
},
+ {
+ .compatible = "fsl,imx8mm-mipi-dsim",
+ .data = &imx8mm_dsi_driver_data
+ },
{ /* sentinel. */ }
};

--
2.25.1