[PATCH v3 05/13] drm: renesas: rzg2l_mipi_dsi: Add RZ/G3L MIPI DSI support

From: Biju Das <[email protected]>

Add support for the MIPI DSI controller found on the Renesas RZ/G3L
(R9A08G046) SoC. The D-PHY global timing table of RZ/G3L SoC different
compared to the other SoCs. Introduce a dedicated D-PHY global timing
table rzg3l_mipi_dsi_global_timings and wire it up via a new
rzg3l_mipi_dsi_info hw_info variant for RZ/G3L SoC.

Signed-off-by: Biju Das <[email protected]>
---
v1->v2:
 * Moved set duty cycle to DU encoder.
v1->v2:
 * Replaced syscon_field->pwrrdy in struct rzg3l_mipi_dsi_info.
---
 .../gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c    | 117 ++++++++++++++++++
 1 file changed, 117 insertions(+)

diff --git a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
index 7df5f4a4161b..88ec0612d529 100644
--- a/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
+++ b/drivers/gpu/drm/renesas/rz-du/rzg2l_mipi_dsi.c
@@ -226,6 +226,107 @@ static const struct rzg2l_mipi_dsi_timings rzg2l_mipi_dsi_global_timings[] = {
 	},
 };
 
+static const struct rzg2l_mipi_dsi_timings rzg3l_mipi_dsi_global_timings[] = {
+	{
+		.hsfreq_max = 100000000,
+		.t_init = 79801,
+		.tclk_prepare = 10,
+		.ths_prepare = 18,
+		.tclk_zero = 35,
+		.tclk_pre = 13,
+		.tclk_post = 94,
+		.tclk_trail = 10,
+		.ths_zero = 16,
+		.ths_trail = 22,
+		.ths_exit = 15,
+		.tlpx = 9,
+	},
+	{
+		.hsfreq_max = 150000000,
+		.t_init = 79801,
+		.tclk_prepare = 10,
+		.ths_prepare = 16,
+		.tclk_zero = 35,
+		.tclk_pre = 13,
+		.tclk_post = 94,
+		.tclk_trail = 10,
+		.ths_zero = 16,
+		.ths_trail = 15,
+		.ths_exit = 15,
+		.tlpx = 9,
+	},
+	{
+		.hsfreq_max = 250000000,
+		.t_init = 79801,
+		.tclk_prepare = 10,
+		.ths_prepare = 13,
+		.tclk_zero = 35,
+		.tclk_pre = 13,
+		.tclk_post = 58,
+		.tclk_trail = 8,
+		.ths_zero = 16,
+		.ths_trail = 10,
+		.ths_exit = 15,
+		.tlpx = 9,
+	},
+	{
+		.hsfreq_max = 400000000,
+		.t_init = 79801,
+		.tclk_prepare = 10,
+		.ths_prepare = 12,
+		.tclk_zero = 35,
+		.tclk_pre = 4,
+		.tclk_post = 58,
+		.tclk_trail = 7,
+		.ths_zero = 16,
+		.ths_trail = 9,
+		.ths_exit = 15,
+		.tlpx = 9,
+	},
+	{
+		.hsfreq_max = 600000000,
+		.t_init = 79801,
+		.tclk_prepare = 10,
+		.ths_prepare = 11,
+		.tclk_zero = 35,
+		.tclk_pre = 4,
+		.tclk_post = 35,
+		.tclk_trail = 5,
+		.ths_zero = 16,
+		.ths_trail = 6,
+		.ths_exit = 15,
+		.tlpx = 9,
+	},
+	{
+		.hsfreq_max = 1000000000,
+		.t_init = 79801,
+		.tclk_prepare = 10,
+		.ths_prepare = 11,
+		.tclk_zero = 35,
+		.tclk_pre = 4,
+		.tclk_post = 35,
+		.tclk_trail = 5,
+		.ths_zero = 16,
+		.ths_trail = 6,
+		.ths_exit = 15,
+		.tlpx = 9,
+	},
+	{
+		.hsfreq_max = 1500000000,
+		.t_init = 79801,
+		.tclk_prepare = 10,
+		.ths_prepare = 11,
+		.tclk_zero = 35,
+		.tclk_pre = 4,
+		.tclk_post = 35,
+		.tclk_trail = 4,
+		.ths_zero = 16,
+		.ths_trail = 5,
+		.ths_exit = 15,
+		.tlpx = 9,
+	},
+};
+
 /**
  * struct rzv2h_mipi_dsi_timings - Timing parameter table structure
  *
@@ -1580,7 +1681,23 @@ static const struct rzg2l_mipi_dsi_hw_info rzg2l_mipi_dsi_info = {
 	.activation_dly = 1000,
 };
 
+static const struct rzg2l_mipi_dsi_hw_info rzg3l_mipi_dsi_info = {
+	.dphy_init = rzg2l_mipi_dsi_dphy_init,
+	.dphy_exit = rzg2l_mipi_dsi_dphy_exit,
+	.dphy_conf_clks = rzg2l_dphy_conf_clks,
+	.dsi_global_timings = rzg3l_mipi_dsi_global_timings,
+	.num_dsi_global_timings = ARRAY_SIZE(rzg3l_mipi_dsi_global_timings),
+	.link_reg_offset = 0x10000,
+	.dphyctrl0_init_val = DSIDPHYCTRL0_CMN_MASTER_EN | DSIDPHYCTRL0_EN_BGR,
+	.min_dclk = 5440,
+	.max_dclk = 187500,
+	.activation_dly = 100,
+	.features = RZ_MIPI_DSI_FEATURE_16BPP,
+	.pwrrdy = true,
+};
+
 static const struct of_device_id rzg2l_mipi_dsi_of_table[] = {
+	{ .compatible = "renesas,r9a08g046-mipi-dsi", .data = &rzg3l_mipi_dsi_info, },
 	{ .compatible = "renesas,r9a09g057-mipi-dsi", .data = &rzv2h_mipi_dsi_info, },
 	{ .compatible = "renesas,rzg2l-mipi-dsi", .data = &rzg2l_mipi_dsi_info, },
 	{ /* sentinel */ }
-- 
2.43.0