Thread (78 messages) 78 messages, 7 authors, 2023-06-28

Re: [PATCH 11/15] drm/msm/dsi: Add 14nm phy configuration for SM6125

From: Marijn Suijten <marijn.suijten@somainline.org>
Date: 2023-06-25 20:23:20
Also in: dri-devel, linux-arm-msm, linux-clk, lkml

On 2023-06-24 03:49:25, Konrad Dybcio wrote:
On 24.06.2023 02:41, Marijn Suijten wrote:
quoted
SM6125 features only a single PHY (despite a secondary PHY PLL source
being available to the disp_cc_mdss_pclk0_clk_src clock), and downstream
sources for this "trinket" SoC do not define the typical "vcca"
regulator to be available nor used.

Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
---
The introduced ops are identical to 2290, modulo regulator..
Sure, I can create a "drop unused regulators from 14nm qcm2290 config"
and a second "reuse qcm2290 14nm dsi phy for sm6125" patch, instead of
this one.
But the regulator is absent on both (VDD_MX powers it instead), so
In the DT patch you requested me to use CX instead of MX... Which one is
it?

Also note that I moved it from DSI PHY to DSI0 because that's where the
rpmpd opps reside.

- Marijn
feel free to clean that up and reuse it ;)
Konrad
quoted
 drivers/gpu/drm/msm/dsi/phy/dsi_phy.c      |  2 ++
 drivers/gpu/drm/msm/dsi/phy/dsi_phy.h      |  1 +
 drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c | 15 +++++++++++++++
 3 files changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
index 9d5795c58a98..8688ed502dcf 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
@@ -559,6 +559,8 @@ static const struct of_device_id dsi_phy_dt_match[] = {
 	  .data = &dsi_phy_14nm_2290_cfgs },
 	{ .compatible = "qcom,dsi-phy-14nm-660",
 	  .data = &dsi_phy_14nm_660_cfgs },
+	{ .compatible = "qcom,dsi-phy-14nm-6125",
+	  .data = &dsi_phy_14nm_6125_cfgs },
 	{ .compatible = "qcom,dsi-phy-14nm-8953",
 	  .data = &dsi_phy_14nm_8953_cfgs },
 #endif
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
index 8b640d174785..ebf915f5e6c6 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
@@ -52,6 +52,7 @@ extern const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs;
 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs;
 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs;
 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_2290_cfgs;
+extern const struct msm_dsi_phy_cfg dsi_phy_14nm_6125_cfgs;
 extern const struct msm_dsi_phy_cfg dsi_phy_14nm_8953_cfgs;
 extern const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs;
 extern const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs;
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
index 3ce45b023e63..5d43c9ec69ae 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
@@ -1068,6 +1068,21 @@ const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs = {
 	.num_dsi_phy = 2,
 };
 
+const struct msm_dsi_phy_cfg dsi_phy_14nm_6125_cfgs = {
+	.has_phy_lane = true,
+	.ops = {
+		.enable = dsi_14nm_phy_enable,
+		.disable = dsi_14nm_phy_disable,
+		.pll_init = dsi_pll_14nm_init,
+		.save_pll_state = dsi_14nm_pll_save_state,
+		.restore_pll_state = dsi_14nm_pll_restore_state,
+	},
+	.min_pll_rate = VCO_MIN_RATE,
+	.max_pll_rate = VCO_MAX_RATE,
+	.io_start = { 0x5e94400 },
+	.num_dsi_phy = 1,
+};
+
 const struct msm_dsi_phy_cfg dsi_phy_14nm_8953_cfgs = {
 	.has_phy_lane = true,
 	.regulator_data = dsi_phy_14nm_17mA_regulators,
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