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drm/msm/dsi: Add support for qcm2290 dsi controller

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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>
This commit is contained in:
Loic Poulain 2022-02-14 16:37:39 +01:00 committed by Dmitry Baryshkov
parent 05ae15e762
commit ee1f09678f
3 changed files with 28 additions and 0 deletions
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2
drivers/gpu/drm/msm/dsi/dsi.c
View File

@ -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 },
{}
};

23
drivers/gpu/drm/msm/dsi/dsi_cfg.c
View File

@ -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,
};

3
drivers/gpu/drm/msm/dsi/dsi_cfg.h
View File

@ -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__ */