From bcd097d892df7d8d325c903c2d69daf4e3130165 Mon Sep 17 00:00:00 2001
From: Loic Poulain <loic.poulain@linaro.org>
Date: Mon, 14 Feb 2022 16:37:39 +0100
Subject: drm/msm/dsi: Add support for qcm2290 dsi controller
Git-commit: ee1f09678f14a037b6bb4d482e0fb6b2016360fb
Patch-mainline: v5.18-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225
QCM2290 MDSS includes a Qualcomm DSI controller v2.4.1. Since this
controller version is not SoC specific, and already assigned to sc7180
for auto configuration, we rely on DSI block specific compatible
string "qcom,dsi-ctrl-6g-qcm2290", and use the device's data to point
to the right dsi config handler.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/474088/
Link: https://lore.kernel.org/r/1644853060-12222-2-git-send-email-loic.poulain@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/msm/dsi/dsi.c | 2 ++
drivers/gpu/drm/msm/dsi/dsi_cfg.c | 23 +++++++++++++++++++++++
drivers/gpu/drm/msm/dsi/dsi_cfg.h | 3 +++
3 files changed, 28 insertions(+)
diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c
index e61a8eec5319..c12e66aa42a3 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.c
+++ b/drivers/gpu/drm/msm/dsi/dsi.c
@@ -4,6 +4,7 @@
*/
#include "dsi.h"
+#include "dsi_cfg.h"
struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi)
{
@@ -176,6 +177,7 @@ static int dsi_dev_remove(struct platform_device *pdev)
static const struct of_device_id dt_match[] = {
{ .compatible = "qcom,mdss-dsi-ctrl", .data = NULL /* autodetect cfg */ },
+ { .compatible = "qcom,dsi-ctrl-6g-qcm2290", .data = &qcm2290_dsi_cfg_handler },
{}
};
diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.c b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
index 96bbc8b6d009..2c23324a2296 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_cfg.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
@@ -213,6 +213,24 @@ static const struct msm_dsi_config sc7280_dsi_cfg = {
.num_dsi = 1,
};
+static const char * const dsi_qcm2290_bus_clk_names[] = {
+ "iface", "bus",
+};
+
+static const struct msm_dsi_config qcm2290_dsi_cfg = {
+ .io_offset = DSI_6G_REG_SHIFT,
+ .reg_cfg = {
+ .num = 1,
+ .regs = {
+ {"vdda", 21800, 4 }, /* 1.2 V */
+ },
+ },
+ .bus_clk_names = dsi_qcm2290_bus_clk_names,
+ .num_bus_clks = ARRAY_SIZE(dsi_qcm2290_bus_clk_names),
+ .io_start = { 0x5e94000 },
+ .num_dsi = 1,
+};
+
static const struct msm_dsi_host_cfg_ops msm_dsi_v2_host_ops = {
.link_clk_set_rate = dsi_link_clk_set_rate_v2,
.link_clk_enable = dsi_link_clk_enable_v2,
@@ -300,3 +318,8 @@ const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor)
return cfg_hnd;
}
+/* Non autodetect configs */
+const struct msm_dsi_cfg_handler qcm2290_dsi_cfg_handler = {
+ .cfg = &qcm2290_dsi_cfg,
+ .ops = &msm_dsi_6g_v2_host_ops,
+};
diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.h b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
index 41e99a9fb5de..fe54a999968b 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_cfg.h
+++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
@@ -60,5 +60,8 @@ struct msm_dsi_cfg_handler {
const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor);
+/* Non autodetect configs */
+extern const struct msm_dsi_cfg_handler qcm2290_dsi_cfg_handler;
+
#endif /* __MSM_DSI_CFG_H__ */
--
2.38.1