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drm/msm/dsi: add support for DSI-PHY on SM8350 and SM8450

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SM8350 and SM8450 use 5nm DSI PHYs, which share register definitions
with 7nm DSI PHYs. Rather than duplicating the driver, handle 5nm
variants inside the common 5+7nm driver.

Co-developed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/514230/
Link: https://lore.kernel.org/r/20221207012231.112059-7-dmitry.baryshkov@linaro.org
[DB: changed compatibles per Krzysztof's request]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Dmitry Baryshkov 2022-12-07 03:22:26 +02:00
parent 1a1bd3f450
commit 2f9ae4e395
4 changed files with 118 additions and 13 deletions
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6
drivers/gpu/drm/msm/Kconfig
View File

@ -140,12 +140,12 @@ config DRM_MSM_DSI_10NM_PHY
Choose this option if DSI PHY on SDM845 is used on the platform.
config DRM_MSM_DSI_7NM_PHY
bool "Enable DSI 7nm PHY driver in MSM DRM"
bool "Enable DSI 7nm/5nm PHY driver in MSM DRM"
depends on DRM_MSM_DSI
default y
help
Choose this option if DSI PHY on SM8150/SM8250/SC7280 is used on
the platform.
Choose this option if DSI PHY on SM8150/SM8250/SM8350/SM8450/SC7280
is used on the platform.
config DRM_MSM_HDMI
bool "Enable HDMI support in MSM DRM driver"

4
drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
View File

@ -569,6 +569,10 @@ static const struct of_device_id dsi_phy_dt_match[] = {
.data = &dsi_phy_7nm_8150_cfgs },
{ .compatible = "qcom,sc7280-dsi-phy-7nm",
.data = &dsi_phy_7nm_7280_cfgs },
{ .compatible = "qcom,sm8350-dsi-phy-5nm",
.data = &dsi_phy_5nm_8350_cfgs },
{ .compatible = "qcom,sm8450-dsi-phy-5nm",
.data = &dsi_phy_5nm_8450_cfgs },
#endif
{}
};

2
drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
View File

@ -57,6 +57,8 @@ extern const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_7nm_7280_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_5nm_8350_cfgs;
extern const struct msm_dsi_phy_cfg dsi_phy_5nm_8450_cfgs;
struct msm_dsi_dphy_timing {
u32 clk_zero;

119
drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
View File

@ -39,8 +39,14 @@
#define VCO_REF_CLK_RATE 19200000
#define FRAC_BITS 18
/* Hardware is pre V4.1 */
#define DSI_PHY_7NM_QUIRK_PRE_V4_1 BIT(0)
/* Hardware is V4.1 */
#define DSI_PHY_7NM_QUIRK_V4_1 BIT(0)
#define DSI_PHY_7NM_QUIRK_V4_1 BIT(1)
/* Hardware is V4.2 */
#define DSI_PHY_7NM_QUIRK_V4_2 BIT(2)
/* Hardware is V4.3 */
#define DSI_PHY_7NM_QUIRK_V4_3 BIT(3)
struct dsi_pll_config {
bool enable_ssc;
@ -116,7 +122,7 @@ static void dsi_pll_calc_dec_frac(struct dsi_pll_7nm *pll, struct dsi_pll_config
dec_multiple = div_u64(pll_freq * multiplier, divider);
dec = div_u64_rem(dec_multiple, multiplier, &frac);
if (!(pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1))
if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_PRE_V4_1)
config->pll_clock_inverters = 0x28;
else if (pll_freq <= 1000000000ULL)
config->pll_clock_inverters = 0xa0;
@ -197,16 +203,25 @@ static void dsi_pll_config_hzindep_reg(struct dsi_pll_7nm *pll)
void __iomem *base = pll->phy->pll_base;
u8 analog_controls_five_1 = 0x01, vco_config_1 = 0x00;
if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1) {
if (!(pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_PRE_V4_1))
if (pll->vco_current_rate >= 3100000000ULL)
analog_controls_five_1 = 0x03;
if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1) {
if (pll->vco_current_rate < 1520000000ULL)
vco_config_1 = 0x08;
else if (pll->vco_current_rate < 2990000000ULL)
vco_config_1 = 0x01;
}
if ((pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_2) ||
(pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_3)) {
if (pll->vco_current_rate < 1520000000ULL)
vco_config_1 = 0x08;
else if (pll->vco_current_rate >= 2990000000ULL)
vco_config_1 = 0x01;
}
dsi_phy_write(base + REG_DSI_7nm_PHY_PLL_ANALOG_CONTROLS_FIVE_1,
analog_controls_five_1);
dsi_phy_write(base + REG_DSI_7nm_PHY_PLL_VCO_CONFIG_1, vco_config_1);
@ -231,9 +246,9 @@ static void dsi_pll_config_hzindep_reg(struct dsi_pll_7nm *pll)
dsi_phy_write(base + REG_DSI_7nm_PHY_PLL_PFILT, 0x2f);
dsi_phy_write(base + REG_DSI_7nm_PHY_PLL_IFILT, 0x2a);
dsi_phy_write(base + REG_DSI_7nm_PHY_PLL_IFILT,
pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1 ? 0x3f : 0x22);
!(pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_PRE_V4_1) ? 0x3f : 0x22);
if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1) {
if (!(pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_PRE_V4_1)) {
dsi_phy_write(base + REG_DSI_7nm_PHY_PLL_PERF_OPTIMIZE, 0x22);
if (pll->slave)
dsi_phy_write(pll->slave->phy->pll_base + REG_DSI_7nm_PHY_PLL_PERF_OPTIMIZE, 0x22);
@ -788,7 +803,7 @@ static void dsi_phy_hw_v4_0_lane_settings(struct msm_dsi_phy *phy)
const u8 *tx_dctrl = tx_dctrl_0;
void __iomem *lane_base = phy->lane_base;
if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1)
if (!(phy->cfg->quirks & DSI_PHY_7NM_QUIRK_PRE_V4_1))
tx_dctrl = tx_dctrl_1;
/* Strength ctrl settings */
@ -844,6 +859,12 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy,
if (dsi_phy_hw_v4_0_is_pll_on(phy))
pr_warn("PLL turned on before configuring PHY\n");
/* Request for REFGEN READY */
if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_3) {
dsi_phy_write(phy->base + REG_DSI_7nm_PHY_CMN_GLBL_DIGTOP_SPARE10, 0x1);
udelay(500);
}
/* wait for REFGEN READY */
ret = readl_poll_timeout_atomic(base + REG_DSI_7nm_PHY_CMN_PHY_STATUS,
status, (status & BIT(0)),
@ -858,28 +879,46 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy,
/* Alter PHY configurations if data rate less than 1.5GHZ*/
less_than_1500_mhz = (clk_req->bitclk_rate <= 1500000000);
glbl_str_swi_cal_sel_ctrl = 0x00;
if (phy->cphy_mode) {
vreg_ctrl_0 = 0x51;
vreg_ctrl_1 = 0x55;
glbl_hstx_str_ctrl_0 = 0x00;
glbl_pemph_ctrl_0 = 0x11;
lane_ctrl0 = 0x17;
} else {
vreg_ctrl_0 = less_than_1500_mhz ? 0x53 : 0x52;
vreg_ctrl_1 = 0x5c;
glbl_hstx_str_ctrl_0 = 0x88;
glbl_pemph_ctrl_0 = 0x00;
lane_ctrl0 = 0x1f;
}
if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1) {
if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_3) {
if (phy->cphy_mode) {
glbl_rescode_top_ctrl = less_than_1500_mhz ? 0x3d : 0x01;
glbl_rescode_bot_ctrl = less_than_1500_mhz ? 0x38 : 0x3b;
} else {
glbl_rescode_top_ctrl = less_than_1500_mhz ? 0x3d : 0x01;
glbl_rescode_bot_ctrl = less_than_1500_mhz ? 0x38 : 0x39;
}
} else if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_2) {
if (phy->cphy_mode) {
glbl_rescode_top_ctrl = less_than_1500_mhz ? 0x3d : 0x01;
glbl_rescode_bot_ctrl = less_than_1500_mhz ? 0x38 : 0x3b;
} else {
glbl_rescode_top_ctrl = less_than_1500_mhz ? 0x3c : 0x00;
glbl_rescode_bot_ctrl = less_than_1500_mhz ? 0x38 : 0x39;
}
} else if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1) {
if (phy->cphy_mode) {
glbl_hstx_str_ctrl_0 = 0x88;
glbl_rescode_top_ctrl = 0x00;
glbl_rescode_bot_ctrl = 0x3c;
} else {
vreg_ctrl_0 = less_than_1500_mhz ? 0x53 : 0x52;
glbl_rescode_top_ctrl = less_than_1500_mhz ? 0x3d : 0x00;
glbl_rescode_bot_ctrl = less_than_1500_mhz ? 0x39 : 0x3c;
}
glbl_str_swi_cal_sel_ctrl = 0x00;
glbl_hstx_str_ctrl_0 = 0x88;
} else {
if (phy->cphy_mode) {
glbl_str_swi_cal_sel_ctrl = 0x03;
@ -1017,6 +1056,15 @@ static void dsi_7nm_phy_disable(struct msm_dsi_phy *phy)
pr_warn("Turning OFF PHY while PLL is on\n");
dsi_phy_hw_v4_0_config_lpcdrx(phy, false);
/* Turn off REFGEN Vote */
if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_3) {
dsi_phy_write(base + REG_DSI_7nm_PHY_CMN_GLBL_DIGTOP_SPARE10, 0x0);
wmb();
/* Delay to ensure HW removes vote before PHY shut down */
udelay(2);
}
data = dsi_phy_read(base + REG_DSI_7nm_PHY_CMN_CTRL_0);
/* disable all lanes */
@ -1040,6 +1088,10 @@ static const struct regulator_bulk_data dsi_phy_7nm_37750uA_regulators[] = {
{ .supply = "vdds", .init_load_uA = 37550 },
};
static const struct regulator_bulk_data dsi_phy_7nm_97800uA_regulators[] = {
{ .supply = "vdds", .init_load_uA = 97800 },
};
const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs = {
.has_phy_lane = true,
.regulator_data = dsi_phy_7nm_36mA_regulators,
@ -1079,6 +1131,7 @@ const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs = {
.max_pll_rate = 3500000000UL,
.io_start = { 0xae94400, 0xae96400 },
.num_dsi_phy = 2,
.quirks = DSI_PHY_7NM_QUIRK_PRE_V4_1,
};
const struct msm_dsi_phy_cfg dsi_phy_7nm_7280_cfgs = {
@ -1102,3 +1155,49 @@ const struct msm_dsi_phy_cfg dsi_phy_7nm_7280_cfgs = {
.num_dsi_phy = 1,
.quirks = DSI_PHY_7NM_QUIRK_V4_1,
};
const struct msm_dsi_phy_cfg dsi_phy_5nm_8350_cfgs = {
.has_phy_lane = true,
.regulator_data = dsi_phy_7nm_37750uA_regulators,
.num_regulators = ARRAY_SIZE(dsi_phy_7nm_37750uA_regulators),
.ops = {
.enable = dsi_7nm_phy_enable,
.disable = dsi_7nm_phy_disable,
.pll_init = dsi_pll_7nm_init,
.save_pll_state = dsi_7nm_pll_save_state,
.restore_pll_state = dsi_7nm_pll_restore_state,
.set_continuous_clock = dsi_7nm_set_continuous_clock,
},
.min_pll_rate = 600000000UL,
#ifdef CONFIG_64BIT
.max_pll_rate = 5000000000UL,
#else
.max_pll_rate = ULONG_MAX,
#endif
.io_start = { 0xae94400, 0xae96400 },
.num_dsi_phy = 2,
.quirks = DSI_PHY_7NM_QUIRK_V4_2,
};
const struct msm_dsi_phy_cfg dsi_phy_5nm_8450_cfgs = {
.has_phy_lane = true,
.regulator_data = dsi_phy_7nm_97800uA_regulators,
.num_regulators = ARRAY_SIZE(dsi_phy_7nm_97800uA_regulators),
.ops = {
.enable = dsi_7nm_phy_enable,
.disable = dsi_7nm_phy_disable,
.pll_init = dsi_pll_7nm_init,
.save_pll_state = dsi_7nm_pll_save_state,
.restore_pll_state = dsi_7nm_pll_restore_state,
.set_continuous_clock = dsi_7nm_set_continuous_clock,
},
.min_pll_rate = 600000000UL,
#ifdef CONFIG_64BIT
.max_pll_rate = 5000000000UL,
#else
.max_pll_rate = ULONG_MAX,
#endif
.io_start = { 0xae94400, 0xae96400 },
.num_dsi_phy = 2,
.quirks = DSI_PHY_7NM_QUIRK_V4_3,
};