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Wed, 30 Apr 2025 06:01:46 -0700 (PDT) From: Krzysztof Kozlowski Date: Wed, 30 Apr 2025 15:00:48 +0200 Subject: [PATCH v5 18/24] drm/msm/dsi/phy: Add support for SM8750 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250430-b4-sm8750-display-v5-18-8cab30c3e4df@linaro.org> References: <20250430-b4-sm8750-display-v5-0-8cab30c3e4df@linaro.org> In-Reply-To: <20250430-b4-sm8750-display-v5-0-8cab30c3e4df@linaro.org> To: Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krishna Manikandan , Jonathan Marek , Kuogee Hsieh , Neil Armstrong , Dmitry Baryshkov , Rob Clark , Bjorn Andersson , Michael Turquette , Stephen Boyd Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Krzysztof Kozlowski , Rob Clark , linux-clk@vger.kernel.org, Srinivas Kandagatla , Dmitry Baryshkov X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B Add support for DSI PHY v7.0 on Qualcomm SM8750 SoC which comes with an incompatible hardware interface change: ICODE_ACCUM_STATUS_LOW and ALOG_OBSV_BUS_STATUS_1 registers - their offsets were just switched. Currently these registers are not used in the driver, so the easiest is to document both but keep them commented out to avoid conflict. Reviewed-by: Dmitry Baryshkov Signed-off-by: Krzysztof Kozlowski --- Changes in v2: 1. Fix pll freq check for clock inverters 160000000ULL -> 163000000ULL --- 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_7nm.c | 79 ++++++++++++++++++= ++-- .../gpu/drm/msm/registers/display/dsi_phy_7nm.xml | 14 ++++ 4 files changed, 90 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/ds= i/phy/dsi_phy.c index c0bcc68289633fd7506ce4f1f963655d862e8f08..60571237efc4d332959ac76ff1d= 6d6245f688469 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -593,6 +593,8 @@ static const struct of_device_id dsi_phy_dt_match[] =3D= { .data =3D &dsi_phy_4nm_8550_cfgs }, { .compatible =3D "qcom,sm8650-dsi-phy-4nm", .data =3D &dsi_phy_4nm_8650_cfgs }, + { .compatible =3D "qcom,sm8750-dsi-phy-3nm", + .data =3D &dsi_phy_3nm_8750_cfgs }, #endif {} }; diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h b/drivers/gpu/drm/msm/ds= i/phy/dsi_phy.h index 7aac0c6ebb37ba15d7af59c28cd9494752d9fdbb..a9fedc4cdc9f87bbab890cd4c3a= cc8df50a3a60c 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h @@ -61,6 +61,7 @@ extern const struct msm_dsi_phy_cfg dsi_phy_5nm_8350_cfgs; extern const struct msm_dsi_phy_cfg dsi_phy_5nm_8450_cfgs; extern const struct msm_dsi_phy_cfg dsi_phy_4nm_8550_cfgs; extern const struct msm_dsi_phy_cfg dsi_phy_4nm_8650_cfgs; +extern const struct msm_dsi_phy_cfg dsi_phy_3nm_8750_cfgs; =20 struct msm_dsi_dphy_timing { u32 clk_zero; diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c b/drivers/gpu/drm/ms= m/dsi/phy/dsi_phy_7nm.c index 9c7df9e00e027e8a8b1daad7c11dcfeeea52ca9d..9e4ed75dfec8b7838d78e9db8fa= 67e4c5a8ec27c 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c @@ -51,6 +51,8 @@ #define DSI_PHY_7NM_QUIRK_V4_3 BIT(3) /* Hardware is V5.2 */ #define DSI_PHY_7NM_QUIRK_V5_2 BIT(4) +/* Hardware is V7.0 */ +#define DSI_PHY_7NM_QUIRK_V7_0 BIT(5) =20 struct dsi_pll_config { bool enable_ssc; @@ -139,9 +141,30 @@ static void dsi_pll_calc_dec_frac(struct dsi_pll_7nm *= pll, struct dsi_pll_config dec_multiple =3D div_u64(pll_freq * multiplier, divider); dec =3D div_u64_rem(dec_multiple, multiplier, &frac); =20 - if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_PRE_V4_1) + if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_PRE_V4_1) { config->pll_clock_inverters =3D 0x28; - else if ((pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2)) { + } else if ((pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V7_0)) { + if (pll_freq < 163000000ULL) + config->pll_clock_inverters =3D 0xa0; + else if (pll_freq < 175000000ULL) + config->pll_clock_inverters =3D 0x20; + else if (pll_freq < 325000000ULL) + config->pll_clock_inverters =3D 0xa0; + else if (pll_freq < 350000000ULL) + config->pll_clock_inverters =3D 0x20; + else if (pll_freq < 650000000ULL) + config->pll_clock_inverters =3D 0xa0; + else if (pll_freq < 700000000ULL) + config->pll_clock_inverters =3D 0x20; + else if (pll_freq < 1300000000ULL) + config->pll_clock_inverters =3D 0xa0; + else if (pll_freq < 2500000000ULL) + config->pll_clock_inverters =3D 0x20; + else if (pll_freq < 4000000000ULL) + config->pll_clock_inverters =3D 0x00; + else + config->pll_clock_inverters =3D 0x40; + } else if ((pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2)) { if (pll_freq <=3D 1300000000ULL) config->pll_clock_inverters =3D 0xa0; else if (pll_freq <=3D 2500000000ULL) @@ -260,7 +283,8 @@ static void dsi_pll_config_hzindep_reg(struct dsi_pll_7= nm *pll) vco_config_1 =3D 0x01; } =20 - if ((pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2)) { + if ((pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2) || + (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V7_0)) { if (pll->vco_current_rate < 1557000000ULL) vco_config_1 =3D 0x08; else @@ -668,6 +692,7 @@ static int dsi_7nm_pll_restore_state(struct msm_dsi_phy= *phy) static int dsi_7nm_set_usecase(struct msm_dsi_phy *phy) { struct dsi_pll_7nm *pll_7nm =3D to_pll_7nm(phy->vco_hw); + void __iomem *base =3D phy->base; u32 data =3D 0x0; /* internal PLL */ =20 DBG("DSI PLL%d", pll_7nm->phy->id); @@ -677,6 +702,9 @@ static int dsi_7nm_set_usecase(struct msm_dsi_phy *phy) break; case MSM_DSI_PHY_MASTER: pll_7nm->slave =3D pll_7nm_list[(pll_7nm->phy->id + 1) % DSI_MAX]; + /* v7.0: Enable ATB_EN0 and alternate clock output to external phy */ + if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V7_0) + writel(0x07, base + REG_DSI_7nm_PHY_CMN_CTRL_5); break; case MSM_DSI_PHY_SLAVE: data =3D 0x1; /* external PLL */ @@ -965,7 +993,8 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy, =20 /* Request for REFGEN READY */ if ((phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_3) || - (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2)) { + (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2) || + (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V7_0)) { writel(0x1, phy->base + REG_DSI_7nm_PHY_CMN_GLBL_DIGTOP_SPARE10); udelay(500); } @@ -999,7 +1028,20 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy, lane_ctrl0 =3D 0x1f; } =20 - if ((phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2)) { + if ((phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V7_0)) { + if (phy->cphy_mode) { + /* TODO: different for second phy */ + vreg_ctrl_0 =3D 0x57; + vreg_ctrl_1 =3D 0x41; + glbl_rescode_top_ctrl =3D 0x3d; + glbl_rescode_bot_ctrl =3D 0x38; + } else { + vreg_ctrl_0 =3D 0x56; + vreg_ctrl_1 =3D 0x19; + glbl_rescode_top_ctrl =3D less_than_1500_mhz ? 0x3c : 0x03; + glbl_rescode_bot_ctrl =3D less_than_1500_mhz ? 0x38 : 0x3c; + } + } else if ((phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2)) { if (phy->cphy_mode) { vreg_ctrl_0 =3D 0x45; vreg_ctrl_1 =3D 0x41; @@ -1065,6 +1107,7 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy, =20 /* program CMN_CTRL_4 for minor_ver 2 chipsets*/ if ((phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2) || + (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V7_0) || (readl(base + REG_DSI_7nm_PHY_CMN_REVISION_ID0) & (0xf0)) =3D=3D 0x20) writel(0x04, base + REG_DSI_7nm_PHY_CMN_CTRL_4); =20 @@ -1181,7 +1224,8 @@ static void dsi_7nm_phy_disable(struct msm_dsi_phy *p= hy) =20 /* Turn off REFGEN Vote */ if ((phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_3) || - (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2)) { + (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V5_2) || + (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V7_0)) { writel(0x0, base + REG_DSI_7nm_PHY_CMN_GLBL_DIGTOP_SPARE10); wmb(); /* Delay to ensure HW removes vote before PHY shut down */ @@ -1402,3 +1446,26 @@ const struct msm_dsi_phy_cfg dsi_phy_4nm_8650_cfgs = =3D { .num_dsi_phy =3D 2, .quirks =3D DSI_PHY_7NM_QUIRK_V5_2, }; + +const struct msm_dsi_phy_cfg dsi_phy_3nm_8750_cfgs =3D { + .has_phy_lane =3D true, + .regulator_data =3D dsi_phy_7nm_98000uA_regulators, + .num_regulators =3D ARRAY_SIZE(dsi_phy_7nm_98000uA_regulators), + .ops =3D { + .enable =3D dsi_7nm_phy_enable, + .disable =3D dsi_7nm_phy_disable, + .pll_init =3D dsi_pll_7nm_init, + .save_pll_state =3D dsi_7nm_pll_save_state, + .restore_pll_state =3D dsi_7nm_pll_restore_state, + .set_continuous_clock =3D dsi_7nm_set_continuous_clock, + }, + .min_pll_rate =3D 600000000UL, +#ifdef CONFIG_64BIT + .max_pll_rate =3D 5000000000UL, +#else + .max_pll_rate =3D ULONG_MAX, +#endif + .io_start =3D { 0xae95000, 0xae97000 }, + .num_dsi_phy =3D 2, + .quirks =3D DSI_PHY_7NM_QUIRK_V7_0, +}; diff --git a/drivers/gpu/drm/msm/registers/display/dsi_phy_7nm.xml b/driver= s/gpu/drm/msm/registers/display/dsi_phy_7nm.xml index d49122b88d14896ef3e87b783a1691f85b61aa9c..f41516dd0567ca7406b0d41c941= 0e28084f2b03c 100644 --- a/drivers/gpu/drm/msm/registers/display/dsi_phy_7nm.xml +++ b/drivers/gpu/drm/msm/registers/display/dsi_phy_7nm.xml @@ -35,6 +35,7 @@ xsi:schemaLocation=3D"https://gitlab.freedesktop.org/free= dreno/ rules-fd.xsd"> + @@ -200,11 +201,24 @@ xsi:schemaLocation=3D"https://gitlab.freedesktop.org/= freedreno/ rules-fd.xsd"> + + --=20 2.45.2