drm/msm/dsi: Take advantage of devm_regulator_bulk_get_const()

As of the commit 1de452a0edda ("regulator: core: Allow drivers to
define their init data as const") we no longer need to do copying of
regulator bulk data from initdata to something dynamic. Let's take
advantage of that.

In addition to saving some code, this also moves us to using
ARRAY_SIZE() to specify how many regulators we have which is less
error prone.

This gets rid of some layers of wrappers which makes it obvious that
we can get rid of an extra error print.
devm_regulator_bulk_get_const() prints errors for you so you don't
need an extra layer of printing.

In all cases here I have preserved the old settings without any
investigation about whether the loads being set are sensible. In the
cases of some of the PHYs if several PHYs in the same file used
exactly the same settings I had them point to the same data structure.

NOTE: Though I haven't done the math, this is likely an overall
savings in terms of "static const" data. We previously always
allocated space for 8 supplies. Each of these supplies took up 36
bytes of data (32 for name, 4 for an int).

Signed-off-by: Douglas Anderson <[e-mail]>
Reviewed-by: Dmitry Baryshkov <[e-mail]>
Reviewed-by: Abhinav Kumar <[e-mail]>
Patchwork: https://patchwork.freedesktop.org/patch/496325/
Link: https://lore.kernel.org/r/20220804073608.v4.5.I55a9e65cb1c22221316629e98768ff473f47a067@changeid
Signed-off-by: Dmitry Baryshkov <[e-mail]>
Signed-off-by: Rob Clark <[e-mail]>

drivers/gpu/drm/msm/dsi/dsi.h

···
 	MSM_DSI_PHY_SLAVE,
 };
 
-#define DSI_DEV_REGULATOR_MAX	8
 #define DSI_BUS_CLK_MAX		4
-
-/* Regulators for DSI devices */
-struct dsi_reg_entry {
-	char name[32];
-	int enable_load;
-};
-
-struct dsi_reg_config {
-	int num;
-	struct dsi_reg_entry regs[DSI_DEV_REGULATOR_MAX];
-};
 
 struct msm_dsi {
 	struct drm_device *dev;

drivers/gpu/drm/msm/dsi/dsi_cfg.c

···
 	"core_mmss", "iface", "bus",
 };
 
+static const struct regulator_bulk_data apq8064_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 100000 },	/* 1.2 V */
+	{ .supply = "avdd", .init_load_uA = 10000 },	/* 3.0 V */
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+};
+
 static const struct msm_dsi_config apq8064_dsi_cfg = {
 	.io_offset = 0,
-	.reg_cfg = {
-		.num = 3,
-		.regs = {
-			{"vdda", 100000},	/* 1.2 V */
-			{"avdd", 10000},	/* 3.0 V */
-			{"vddio", 100000},	/* 1.8 V */
-		},
-	},
+	.regulator_data = apq8064_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(apq8064_dsi_regulators),
 	.bus_clk_names = dsi_v2_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_v2_bus_clk_names),
 	.io_start = { 0x4700000, 0x5800000 },
···
 	"mdp_core", "iface", "bus", "core_mmss",
 };
 
+static const struct regulator_bulk_data msm8974_apq8084_regulators[] = {
+	{ .supply = "vdd", .init_load_uA = 150000 },	/* 3.0 V */
+	{ .supply = "vdda", .init_load_uA = 100000 },	/* 1.2 V */
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+};
+
 static const struct msm_dsi_config msm8974_apq8084_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 3,
-		.regs = {
-			{"vdd", 150000},	/* 3.0 V */
-			{"vdda", 100000},	/* 1.2 V */
-			{"vddio", 100000},	/* 1.8 V */
-		},
-	},
+	.regulator_data = msm8974_apq8084_regulators,
+	.num_regulators = ARRAY_SIZE(msm8974_apq8084_regulators),
 	.bus_clk_names = dsi_6g_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
 	.io_start = { 0xfd922800, 0xfd922b00 },
···
 	"mdp_core", "iface", "bus",
 };
 
+static const struct regulator_bulk_data msm8916_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 100000 },	/* 1.2 V */
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+};
+
 static const struct msm_dsi_config msm8916_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 2,
-		.regs = {
-			{"vdda", 100000},	/* 1.2 V */
-			{"vddio", 100000},	/* 1.8 V */
-		},
-	},
+	.regulator_data = msm8916_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(msm8916_dsi_regulators),
 	.bus_clk_names = dsi_8916_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_8916_bus_clk_names),
 	.io_start = { 0x1a98000 },
···
 	"mdp_core", "iface", "bus",
 };
 
+static const struct regulator_bulk_data msm8976_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 100000 },	/* 1.2 V */
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+};
+
 static const struct msm_dsi_config msm8976_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 2,
-		.regs = {
-			{"vdda", 100000},	/* 1.2 V */
-			{"vddio", 100000},	/* 1.8 V */
-		},
-	},
+	.regulator_data = msm8976_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(msm8976_dsi_regulators),
 	.bus_clk_names = dsi_8976_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_8976_bus_clk_names),
 	.io_start = { 0x1a94000, 0x1a96000 },
 	.num_dsi = 2,
 };
 
+static const struct regulator_bulk_data msm8994_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 100000 },	/* 1.25 V */
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+	{ .supply = "vcca", .init_load_uA = 10000 },	/* 1.0 V */
+	{ .supply = "vdd", .init_load_uA = 100000 },	/* 1.8 V */
+	{ .supply = "lab_reg", .init_load_uA = -1 },
+	{ .supply = "ibb_reg", .init_load_uA = -1 },
+};
+
 static const struct msm_dsi_config msm8994_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 6,
-		.regs = {
-			{"vdda", 100000},	/* 1.25 V */
-			{"vddio", 100000},	/* 1.8 V */
-			{"vcca", 10000},	/* 1.0 V */
-			{"vdd", 100000},	/* 1.8 V */
-			{"lab_reg", -1},
-			{"ibb_reg", -1},
-		},
-	},
+	.regulator_data = msm8994_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(msm8994_dsi_regulators),
 	.bus_clk_names = dsi_6g_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_6g_bus_clk_names),
 	.io_start = { 0xfd998000, 0xfd9a0000 },
···
 	"mdp_core", "iface", "bus", "core_mmss",
 };
 
+static const struct regulator_bulk_data msm8996_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 18160 },	/* 1.25 V */
+	{ .supply = "vcca", .init_load_uA = 17000 },	/* 0.925 V */
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+};
+
 static const struct msm_dsi_config msm8996_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 3,
-		.regs = {
-			{"vdda", 18160},	/* 1.25 V */
-			{"vcca", 17000},	/* 0.925 V */
-			{"vddio", 100000},/* 1.8 V */
-		},
-	},
+	.regulator_data = msm8996_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(msm8996_dsi_regulators),
 	.bus_clk_names = dsi_8996_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_8996_bus_clk_names),
 	.io_start = { 0x994000, 0x996000 },
···
 	"iface", "bus", "core",
 };
 
+static const struct regulator_bulk_data msm8998_dsi_regulators[] = {
+	{ .supply = "vdd", .init_load_uA = 367000 },	/* 0.9 V */
+	{ .supply = "vdda", .init_load_uA = 62800 },	/* 1.2 V */
+};
+
 static const struct msm_dsi_config msm8998_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 2,
-		.regs = {
-			{"vdd", 367000},	/* 0.9 V */
-			{"vdda", 62800},	/* 1.2 V */
-		},
-	},
+	.regulator_data = msm8998_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(msm8998_dsi_regulators),
 	.bus_clk_names = dsi_msm8998_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_msm8998_bus_clk_names),
 	.io_start = { 0xc994000, 0xc996000 },
···
 	"iface", "bus", "core", "core_mmss",
 };
 
+static const struct regulator_bulk_data sdm660_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 12560 },	/* 1.2 V */
+};
+
 static const struct msm_dsi_config sdm660_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdda", 12560},	/* 1.2 V */
-		},
-	},
+	.regulator_data = sdm660_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(sdm660_dsi_regulators),
 	.bus_clk_names = dsi_sdm660_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sdm660_bus_clk_names),
 	.io_start = { 0xc994000, 0xc996000 },
···
 	"iface", "bus",
 };
 
+static const struct regulator_bulk_data sdm845_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 21800 },	/* 1.2 V */
+};
+
 static const struct msm_dsi_config sdm845_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdda", 21800},	/* 1.2 V */
-		},
-	},
+	.regulator_data = sdm845_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(sdm845_dsi_regulators),
 	.bus_clk_names = dsi_sdm845_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sdm845_bus_clk_names),
 	.io_start = { 0xae94000, 0xae96000 },
 	.num_dsi = 2,
 };
 
+static const struct regulator_bulk_data sc7180_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 21800 },	/* 1.2 V */
+};
+
 static const struct msm_dsi_config sc7180_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdda", 21800},	/* 1.2 V */
-		},
-	},
+	.regulator_data = sc7180_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(sc7180_dsi_regulators),
 	.bus_clk_names = dsi_sc7180_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sc7180_bus_clk_names),
 	.io_start = { 0xae94000 },
···
 	"iface", "bus",
 };
 
+static const struct regulator_bulk_data sc7280_dsi_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 8350 },	/* 1.2 V */
+};
+
 static const struct msm_dsi_config sc7280_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdda", 8350},	/* 1.2 V */
-		},
-	},
+	.regulator_data = sc7280_dsi_regulators,
+	.num_regulators = ARRAY_SIZE(sc7280_dsi_regulators),
 	.bus_clk_names = dsi_sc7280_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_sc7280_bus_clk_names),
 	.io_start = { 0xae94000 },
···
 	"iface", "bus",
 };
 
+static const struct regulator_bulk_data qcm2290_dsi_cfg_regulators[] = {
+	{ .supply = "vdda", .init_load_uA = 21800 },	/* 1.2 V */
+};
+
 static const struct msm_dsi_config qcm2290_dsi_cfg = {
 	.io_offset = DSI_6G_REG_SHIFT,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdda", 21800},	/* 1.2 V */
-		},
-	},
+	.regulator_data = qcm2290_dsi_cfg_regulators,
+	.num_regulators = ARRAY_SIZE(qcm2290_dsi_cfg_regulators),
 	.bus_clk_names = dsi_qcm2290_bus_clk_names,
 	.num_bus_clks = ARRAY_SIZE(dsi_qcm2290_bus_clk_names),
 	.io_start = { 0x5e94000 },

drivers/gpu/drm/msm/dsi/dsi_cfg.h

···
 
 struct msm_dsi_config {
 	u32 io_offset;
-	struct dsi_reg_config reg_cfg;
+	const struct regulator_bulk_data *regulator_data;
+	int num_regulators;
 	const char * const *bus_clk_names;
 	const int num_bus_clks;
 	const resource_size_t io_start[DSI_MAX];

drivers/gpu/drm/msm/dsi/dsi_host.c

···
 
 	void __iomem *ctrl_base;
 	phys_addr_t ctrl_size;
-	struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX];
+	struct regulator_bulk_data *supplies;
 
 	int num_bus_clks;
 	struct clk_bulk_data bus_clks[DSI_BUS_CLK_MAX];
···
 static inline struct msm_dsi_host *to_msm_dsi_host(struct mipi_dsi_host *host)
 {
 	return container_of(host, struct msm_dsi_host, base);
-}
-
-static int dsi_regulator_init(struct msm_dsi_host *msm_host)
-{
-	struct regulator_bulk_data *s = msm_host->supplies;
-	const struct dsi_reg_entry *regs = msm_host->cfg_hnd->cfg->reg_cfg.regs;
-	int num = msm_host->cfg_hnd->cfg->reg_cfg.num;
-	int i, ret;
-
-	for (i = 0; i < num; i++) {
-		s[i].supply = regs[i].name;
-		s[i].init_load_uA = regs[i].enable_load;
-	}
-
-	ret = devm_regulator_bulk_get(&msm_host->pdev->dev, num, s);
-	if (ret < 0) {
-		pr_err("%s: failed to init regulator, ret=%d\n",
-						__func__, ret);
-		return ret;
-	}
-
-	return 0;
 }
 
 int dsi_clk_init_v2(struct msm_dsi_host *msm_host)
···
 {
 	struct msm_dsi_host *msm_host = NULL;
 	struct platform_device *pdev = msm_dsi->pdev;
+	const struct msm_dsi_config *cfg;
 	int ret;
 
 	msm_host = devm_kzalloc(&pdev->dev, sizeof(*msm_host), GFP_KERNEL);
···
 		pr_err("%s: get config failed\n", __func__);
 		goto fail;
 	}
+	cfg = msm_host->cfg_hnd->cfg;
 
 	msm_host->id = dsi_host_get_id(msm_host);
 	if (msm_host->id < 0) {
···
 	}
 
 	/* fixup base address by io offset */
-	msm_host->ctrl_base += msm_host->cfg_hnd->cfg->io_offset;
+	msm_host->ctrl_base += cfg->io_offset;
 
-	ret = dsi_regulator_init(msm_host);
-	if (ret) {
-		pr_err("%s: regulator init failed\n", __func__);
+	ret = devm_regulator_bulk_get_const(&pdev->dev, cfg->num_regulators,
+					    cfg->regulator_data,
+					    &msm_host->supplies);
+	if (ret)
 		goto fail;
-	}
 
 	ret = dsi_clk_init(msm_host);
 	if (ret) {
···
 
 	msm_dsi_sfpb_config(msm_host, true);
 
-	ret = regulator_bulk_enable(msm_host->cfg_hnd->cfg->reg_cfg.num,
+	ret = regulator_bulk_enable(msm_host->cfg_hnd->cfg->num_regulators,
 				    msm_host->supplies);
 	if (ret) {
 		pr_err("%s:Failed to enable vregs.ret=%d\n",
···
 	cfg_hnd->ops->link_clk_disable(msm_host);
 	pm_runtime_put(&msm_host->pdev->dev);
 fail_disable_reg:
-	regulator_bulk_disable(msm_host->cfg_hnd->cfg->reg_cfg.num,
+	regulator_bulk_disable(msm_host->cfg_hnd->cfg->num_regulators,
 			       msm_host->supplies);
 unlock_ret:
 	mutex_unlock(&msm_host->dev_mutex);
···
 	cfg_hnd->ops->link_clk_disable(msm_host);
 	pm_runtime_put(&msm_host->pdev->dev);
 
-	regulator_bulk_disable(msm_host->cfg_hnd->cfg->reg_cfg.num,
+	regulator_bulk_disable(msm_host->cfg_hnd->cfg->num_regulators,
 			       msm_host->supplies);
 
 	msm_dsi_sfpb_config(msm_host, false);

drivers/gpu/drm/msm/dsi/phy/dsi_phy.c

···
 	return 0;
 }
 
-static int dsi_phy_regulator_init(struct msm_dsi_phy *phy)
-{
-	struct regulator_bulk_data *s = phy->supplies;
-	const struct dsi_reg_entry *regs = phy->cfg->reg_cfg.regs;
-	struct device *dev = &phy->pdev->dev;
-	int num = phy->cfg->reg_cfg.num;
-	int i, ret;
-
-	for (i = 0; i < num; i++) {
-		s[i].supply = regs[i].name;
-		s[i].init_load_uA = regs[i].enable_load;
-	}
-
-	ret = devm_regulator_bulk_get(dev, num, s);
-	if (ret < 0) {
-		if (ret != -EPROBE_DEFER) {
-			DRM_DEV_ERROR(dev,
-				      "%s: failed to init regulator, ret=%d\n",
-				      __func__, ret);
-		}
-
-		return ret;
-	}
-
-	return 0;
-}
-
 static int dsi_phy_enable_resource(struct msm_dsi_phy *phy)
 {
 	struct device *dev = &phy->pdev->dev;
···
 			goto fail;
 	}
 
-	ret = dsi_phy_regulator_init(phy);
+	ret = devm_regulator_bulk_get_const(dev, phy->cfg->num_regulators,
+					    phy->cfg->regulator_data,
+					    &phy->supplies);
 	if (ret)
 		goto fail;
 
···
 		goto res_en_fail;
 	}
 
-	ret = regulator_bulk_enable(phy->cfg->reg_cfg.num, phy->supplies);
+	ret = regulator_bulk_enable(phy->cfg->num_regulators, phy->supplies);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "%s: regulator enable failed, %d\n",
 			__func__, ret);
···
 	if (phy->cfg->ops.disable)
 		phy->cfg->ops.disable(phy);
 phy_en_fail:
-	regulator_bulk_disable(phy->cfg->reg_cfg.num, phy->supplies);
+	regulator_bulk_disable(phy->cfg->num_regulators, phy->supplies);
 reg_en_fail:
 	dsi_phy_disable_resource(phy);
 res_en_fail:
···
 
 	phy->cfg->ops.disable(phy);
 
-	regulator_bulk_disable(phy->cfg->reg_cfg.num, phy->supplies);
+	regulator_bulk_disable(phy->cfg->num_regulators, phy->supplies);
 	dsi_phy_disable_resource(phy);
 }
 

drivers/gpu/drm/msm/dsi/phy/dsi_phy.h

···
 };
 
 struct msm_dsi_phy_cfg {
-	struct dsi_reg_config reg_cfg;
+	const struct regulator_bulk_data *regulator_data;
+	int num_regulators;
 	struct msm_dsi_phy_ops ops;
 
 	unsigned long	min_pll_rate;
···
 	int id;
 
 	struct clk *ahb_clk;
-	struct regulator_bulk_data supplies[DSI_DEV_REGULATOR_MAX];
+	struct regulator_bulk_data *supplies;
 
 	struct msm_dsi_dphy_timing timing;
 	const struct msm_dsi_phy_cfg *cfg;

drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c

···
 	return 0;
 }
 
+static const struct regulator_bulk_data dsi_phy_10nm_regulators[] = {
+	{ .supply = "vdds", .init_load_uA = 36000 },
+};
+
 const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdds", 36000},
-		},
-	},
+	.regulator_data = dsi_phy_10nm_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_10nm_regulators),
 	.ops = {
 		.enable = dsi_10nm_phy_enable,
 		.disable = dsi_10nm_phy_disable,
···
 
 const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdds", 36000},
-		},
-	},
+	.regulator_data = dsi_phy_10nm_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_10nm_regulators),
 	.ops = {
 		.enable = dsi_10nm_phy_enable,
 		.disable = dsi_10nm_phy_disable,

drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c

···
 	wmb();
 }
 
+static const struct regulator_bulk_data dsi_phy_14nm_17mA_regulators[] = {
+	{ .supply = "vcca", .init_load_uA = 17000 },
+};
+
+static const struct regulator_bulk_data dsi_phy_14nm_73p4mA_regulators[] = {
+	{ .supply = "vcca", .init_load_uA = 73400 },
+};
+
 const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vcca", 17000},
-		},
-	},
+	.regulator_data = dsi_phy_14nm_17mA_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_14nm_17mA_regulators),
 	.ops = {
 		.enable = dsi_14nm_phy_enable,
 		.disable = dsi_14nm_phy_disable,
···
 
 const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vcca", 73400},
-		},
-	},
+	.regulator_data = dsi_phy_14nm_73p4mA_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_14nm_73p4mA_regulators),
 	.ops = {
 		.enable = dsi_14nm_phy_enable,
 		.disable = dsi_14nm_phy_disable,
···
 
 const struct msm_dsi_phy_cfg dsi_phy_14nm_8953_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vcca", 17000},
-		},
-	},
+	.regulator_data = dsi_phy_14nm_17mA_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_14nm_17mA_regulators),
 	.ops = {
 		.enable = dsi_14nm_phy_enable,
 		.disable = dsi_14nm_phy_disable,

drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c

···
 	dsi_20nm_phy_regulator_ctrl(phy, false);
 }
 
+static const struct regulator_bulk_data dsi_phy_20nm_regulators[] = {
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+	{ .supply = "vcca", .init_load_uA = 10000 },	/* 1.0 V */
+};
+
 const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs = {
 	.has_phy_regulator = true,
-	.reg_cfg = {
-		.num = 2,
-		.regs = {
-			{"vddio", 100000},	/* 1.8 V */
-			{"vcca", 10000},	/* 1.0 V */
-		},
-	},
+	.regulator_data = dsi_phy_20nm_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_20nm_regulators),
 	.ops = {
 		.enable = dsi_20nm_phy_enable,
 		.disable = dsi_20nm_phy_disable,

drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c

···
 	wmb();
 }
 
+static const struct regulator_bulk_data dsi_phy_28nm_regulators[] = {
+	{ .supply = "vddio", .init_load_uA = 100000 },
+};
+
 const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs = {
 	.has_phy_regulator = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vddio", 100000},
-		},
-	},
+	.regulator_data = dsi_phy_28nm_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_28nm_regulators),
 	.ops = {
 		.enable = dsi_28nm_phy_enable,
 		.disable = dsi_28nm_phy_disable,
···
 
 const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_famb_cfgs = {
 	.has_phy_regulator = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vddio", 100000},
-		},
-	},
+	.regulator_data = dsi_phy_28nm_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_28nm_regulators),
 	.ops = {
 		.enable = dsi_28nm_phy_enable,
 		.disable = dsi_28nm_phy_disable,
···
 
 const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs = {
 	.has_phy_regulator = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vddio", 100000},	/* 1.8 V */
-		},
-	},
+	.regulator_data = dsi_phy_28nm_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_28nm_regulators),
 	.ops = {
 		.enable = dsi_28nm_phy_enable,
 		.disable = dsi_28nm_phy_disable,

drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c

···
 	wmb();
 }
 
+static const struct regulator_bulk_data dsi_phy_28nm_8960_regulators[] = {
+	{ .supply = "vddio", .init_load_uA = 100000 },	/* 1.8 V */
+};
+
 const struct msm_dsi_phy_cfg dsi_phy_28nm_8960_cfgs = {
 	.has_phy_regulator = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vddio", 100000},	/* 1.8 V */
-		},
-	},
+	.regulator_data = dsi_phy_28nm_8960_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_28nm_8960_regulators),
 	.ops = {
 		.enable = dsi_28nm_phy_enable,
 		.disable = dsi_28nm_phy_disable,

drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c

···
 	DBG("DSI%d PHY disabled", phy->id);
 }
 
+static const struct regulator_bulk_data dsi_phy_7nm_36mA_regulators[] = {
+	{ .supply = "vdds", .init_load_uA = 36000 },
+};
+
+static const struct regulator_bulk_data dsi_phy_7nm_37750uA_regulators[] = {
+	{ .supply = "vdds", .init_load_uA = 37550 },
+};
+
 const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdds", 36000},
-		},
-	},
+	.regulator_data = dsi_phy_7nm_36mA_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_7nm_36mA_regulators),
 	.ops = {
 		.enable = dsi_7nm_phy_enable,
 		.disable = dsi_7nm_phy_disable,
···
 
 const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdds", 36000},
-		},
-	},
+	.regulator_data = dsi_phy_7nm_36mA_regulators,
+	.num_regulators = ARRAY_SIZE(dsi_phy_7nm_36mA_regulators),
 	.ops = {
 		.enable = dsi_7nm_phy_enable,
 		.disable = dsi_7nm_phy_disable,
···
 
 const struct msm_dsi_phy_cfg dsi_phy_7nm_7280_cfgs = {
 	.has_phy_lane = true,
-	.reg_cfg = {
-		.num = 1,
-		.regs = {
-			{"vdds", 37550},
-		},
-	},
+	.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,