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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
	Jonathan Marek <jonathan@marek.ca>
Cc: Stephen Boyd <sboyd@kernel.org>, David Airlie <airlied@linux.ie>,
	Daniel Vetter <daniel@ffwll.ch>,
	linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
	freedreno@lists.freedesktop.org
Subject: [RFC 23/24] drm/msm/dsi: drop global msm_dsi_phy_type enumaration
Date: Tue,  2 Mar 2021 02:25:06 +0300	[thread overview]
Message-ID: <20210301232506.3057401-24-dmitry.baryshkov@linaro.org> (raw)
In-Reply-To: <20210301232506.3057401-1-dmitry.baryshkov@linaro.org>

With the current upstream driver the msm_dsi_phy_type enum does not make
much sense: all DSI PHYs are probed using the dt bindings, the phy type
is not passed between drivers. Use quirks in phy individual PHY drivers
to differentiate minor harware differences and drop the enum.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/dsi/dsi.h                  | 12 ------------
 drivers/gpu/drm/msm/dsi/phy/dsi_phy.h          |  4 ----
 drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c     | 11 ++++++-----
 drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c     |  2 --
 drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c     |  1 -
 drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c     | 15 ++++++++-------
 .../gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c    |  1 -
 drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c      | 18 ++++++++++--------
 8 files changed, 24 insertions(+), 40 deletions(-)

diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index 351bfbeb53bd..5c32ee2b3605 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -23,18 +23,6 @@
 struct msm_dsi_phy_shared_timings;
 struct msm_dsi_phy_clk_request;
 
-enum msm_dsi_phy_type {
-	MSM_DSI_PHY_28NM_HPM,
-	MSM_DSI_PHY_28NM_LP,
-	MSM_DSI_PHY_20NM,
-	MSM_DSI_PHY_28NM_8960,
-	MSM_DSI_PHY_14NM,
-	MSM_DSI_PHY_10NM,
-	MSM_DSI_PHY_7NM,
-	MSM_DSI_PHY_7NM_V4_1,
-	MSM_DSI_PHY_MAX
-};
-
 enum msm_dsi_phy_usecase {
 	MSM_DSI_PHY_STANDALONE,
 	MSM_DSI_PHY_MASTER,
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
index 0aa2729ed4b5..8e828c5ca8f4 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
@@ -17,9 +17,6 @@
 #define dsi_phy_write_udelay(offset, data, delay_us) { msm_writel((data), (offset)); udelay(delay_us); }
 #define dsi_phy_write_ndelay(offset, data, delay_ns) { msm_writel((data), (offset)); ndelay(delay_ns); }
 
-/* v3.0.0 10nm implementation that requires the old timings settings */
-#define V3_0_0_10NM_OLD_TIMINGS_QUIRK	BIT(0)
-
 struct msm_dsi_phy_ops {
 	int (*pll_init)(struct msm_dsi_phy *phy);
 	int (*enable)(struct msm_dsi_phy *phy, int src_pll_id,
@@ -30,7 +27,6 @@ struct msm_dsi_phy_ops {
 };
 
 struct msm_dsi_phy_cfg {
-	enum msm_dsi_phy_type type;
 	struct dsi_reg_config reg_cfg;
 	struct msm_dsi_phy_ops ops;
 
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
index 5456ba67245c..6bb6507d6a2f 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
@@ -38,6 +38,9 @@
 #define VCO_REF_CLK_RATE		19200000
 #define FRAC_BITS 18
 
+/* v3.0.0 10nm implementation that requires the old timings settings */
+#define DSI_PHY_10NM_QUIRK_OLD_TIMINGS	BIT(0)
+
 struct dsi_pll_config {
 	bool enable_ssc;
 	bool ssc_center;
@@ -741,7 +744,7 @@ static void dsi_phy_hw_v3_0_lane_settings(struct msm_dsi_phy *phy)
 	u8 tx_dctrl[] = { 0x00, 0x00, 0x00, 0x04, 0x01 };
 	void __iomem *lane_base = phy->lane_base;
 
-	if (phy->cfg->quirks & V3_0_0_10NM_OLD_TIMINGS_QUIRK)
+	if (phy->cfg->quirks & DSI_PHY_10NM_QUIRK_OLD_TIMINGS)
 		tx_dctrl[3] = 0x02;
 
 	/* Strength ctrl settings */
@@ -776,7 +779,7 @@ static void dsi_phy_hw_v3_0_lane_settings(struct msm_dsi_phy *phy)
 			      tx_dctrl[i]);
 	}
 
-	if (!(phy->cfg->quirks & V3_0_0_10NM_OLD_TIMINGS_QUIRK)) {
+	if (!(phy->cfg->quirks & DSI_PHY_10NM_QUIRK_OLD_TIMINGS)) {
 		/* Toggle BIT 0 to release freeze I/0 */
 		dsi_phy_write(lane_base + REG_DSI_10nm_PHY_LN_TX_DCTRL(3), 0x05);
 		dsi_phy_write(lane_base + REG_DSI_10nm_PHY_LN_TX_DCTRL(3), 0x04);
@@ -916,7 +919,6 @@ static void dsi_10nm_phy_disable(struct msm_dsi_phy *phy)
 }
 
 const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs = {
-	.type = MSM_DSI_PHY_10NM,
 	.src_pll_truthtable = { {false, false}, {true, false} },
 	.has_phy_lane = true,
 	.reg_cfg = {
@@ -939,7 +941,6 @@ const struct msm_dsi_phy_cfg dsi_phy_10nm_cfgs = {
 };
 
 const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs = {
-	.type = MSM_DSI_PHY_10NM,
 	.src_pll_truthtable = { {false, false}, {true, false} },
 	.has_phy_lane = true,
 	.reg_cfg = {
@@ -959,5 +960,5 @@ const struct msm_dsi_phy_cfg dsi_phy_10nm_8998_cfgs = {
 	.max_pll_rate = 3500000000UL,
 	.io_start = { 0xc994400, 0xc996400 },
 	.num_dsi_phy = 2,
-	.quirks = V3_0_0_10NM_OLD_TIMINGS_QUIRK,
+	.quirks = DSI_PHY_10NM_QUIRK_OLD_TIMINGS,
 };
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 88800d68b1bb..b4257434e4ee 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_14nm.c
@@ -1022,7 +1022,6 @@ static void dsi_14nm_phy_disable(struct msm_dsi_phy *phy)
 }
 
 const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs = {
-	.type = MSM_DSI_PHY_14NM,
 	.src_pll_truthtable = { {false, false}, {true, false} },
 	.has_phy_lane = true,
 	.reg_cfg = {
@@ -1045,7 +1044,6 @@ const struct msm_dsi_phy_cfg dsi_phy_14nm_cfgs = {
 };
 
 const struct msm_dsi_phy_cfg dsi_phy_14nm_660_cfgs = {
-	.type = MSM_DSI_PHY_14NM,
 	.src_pll_truthtable = { {false, false}, {true, false} },
 	.has_phy_lane = true,
 	.reg_cfg = {
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c
index b752636f7f21..5e73f811d645 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c
@@ -125,7 +125,6 @@ static void dsi_20nm_phy_disable(struct msm_dsi_phy *phy)
 }
 
 const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs = {
-	.type = MSM_DSI_PHY_20NM,
 	.src_pll_truthtable = { {false, true}, {false, true} },
 	.has_phy_regulator = true,
 	.reg_cfg = {
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c
index 6e391f0d3ffb..d859a39c69b2 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c
@@ -34,6 +34,9 @@
 #define VCO_MIN_RATE			350000000
 #define VCO_MAX_RATE			750000000
 
+/* v2.0.0 28nm LP implementation */
+#define DSI_PHY_28NM_QUIRK_PHY_LP	BIT(0)
+
 #define LPFR_LUT_SIZE			10
 struct lpfr_cfg {
 	unsigned long vco_rate;
@@ -203,10 +206,10 @@ static int dsi_pll_28nm_clk_set_rate(struct clk_hw *hw, unsigned long rate,
 	dsi_phy_write(base + REG_DSI_28nm_PHY_PLL_SDM_CFG4, 0x00);
 
 	/* Add hardware recommended delay for correct PLL configuration */
-	if (pll_28nm->phy->cfg->type == MSM_DSI_PHY_28NM_HPM)
-		udelay(1);
-	else /* LP */
+	if (pll_28nm->phy->cfg->quirks & DSI_PHY_28NM_QUIRK_PHY_LP)
 		udelay(1000);
+	else
+		udelay(1);
 
 	dsi_phy_write(base + REG_DSI_28nm_PHY_PLL_REFCLK_CFG, refclk_cfg);
 	dsi_phy_write(base + REG_DSI_28nm_PHY_PLL_PWRGEN_CFG, 0x00);
@@ -698,7 +701,7 @@ static void dsi_28nm_phy_regulator_enable_ldo(struct msm_dsi_phy *phy)
 	dsi_phy_write(base + REG_DSI_28nm_PHY_REGULATOR_CTRL_1, 0x1);
 	dsi_phy_write(base + REG_DSI_28nm_PHY_REGULATOR_CTRL_4, 0x20);
 
-	if (phy->cfg->type == MSM_DSI_PHY_28NM_LP)
+	if (phy->cfg->quirks & DSI_PHY_28NM_QUIRK_PHY_LP)
 		dsi_phy_write(phy->base + REG_DSI_28nm_PHY_LDO_CNTRL, 0x05);
 	else
 		dsi_phy_write(phy->base + REG_DSI_28nm_PHY_LDO_CNTRL, 0x0d);
@@ -783,7 +786,6 @@ static void dsi_28nm_phy_disable(struct msm_dsi_phy *phy)
 }
 
 const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs = {
-	.type = MSM_DSI_PHY_28NM_HPM,
 	.src_pll_truthtable = { {true, true}, {false, true} },
 	.has_phy_regulator = true,
 	.reg_cfg = {
@@ -806,7 +808,6 @@ const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs = {
 };
 
 const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_famb_cfgs = {
-	.type = MSM_DSI_PHY_28NM_HPM,
 	.src_pll_truthtable = { {true, true}, {false, true} },
 	.has_phy_regulator = true,
 	.reg_cfg = {
@@ -829,7 +830,6 @@ const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_famb_cfgs = {
 };
 
 const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs = {
-	.type = MSM_DSI_PHY_28NM_LP,
 	.src_pll_truthtable = { {true, true}, {true, true} },
 	.has_phy_regulator = true,
 	.reg_cfg = {
@@ -849,5 +849,6 @@ const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs = {
 	.max_pll_rate = VCO_MAX_RATE,
 	.io_start = { 0x1a98500 },
 	.num_dsi_phy = 1,
+	.quirks = DSI_PHY_28NM_QUIRK_PHY_LP,
 };
 
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
index e3a6148e1d3b..33aabddeeb1f 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
@@ -642,7 +642,6 @@ static void dsi_28nm_phy_disable(struct msm_dsi_phy *phy)
 }
 
 const struct msm_dsi_phy_cfg dsi_phy_28nm_8960_cfgs = {
-	.type = MSM_DSI_PHY_28NM_8960,
 	.src_pll_truthtable = { {true, true}, {false, true} },
 	.has_phy_regulator = true,
 	.reg_cfg = {
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
index 98dc6c3083fc..0d55849dcd86 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
@@ -38,6 +38,9 @@
 #define VCO_REF_CLK_RATE		19200000
 #define FRAC_BITS 18
 
+/* Hardware is V4.1 */
+#define DSI_PHY_7NM_QUIRK_V4_1		BIT(0)
+
 struct dsi_pll_config {
 	bool enable_ssc;
 	bool ssc_center;
@@ -114,7 +117,7 @@ static void dsi_pll_calc_dec_frac(struct dsi_pll_7nm *pll, struct dsi_pll_config
 
 	dec = div_u64(dec_multiple, multiplier);
 
-	if (pll->phy->cfg->type != MSM_DSI_PHY_7NM_V4_1)
+	if (!(pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1))
 		config->pll_clock_inverters = 0x28;
 	else if (pll_freq <= 1000000000ULL)
 		config->pll_clock_inverters = 0xa0;
@@ -195,7 +198,7 @@ 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->type == MSM_DSI_PHY_7NM_V4_1) {
+	if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1) {
 		if (pll->vco_current_rate >= 3100000000ULL)
 			analog_controls_five_1 = 0x03;
 
@@ -229,9 +232,9 @@ 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->type == MSM_DSI_PHY_7NM_V4_1 ? 0x3f : 0x22);
+		  pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1 ? 0x3f : 0x22);
 
-	if (pll->phy->cfg->type == MSM_DSI_PHY_7NM_V4_1) {
+	if (pll->phy->cfg->quirks & DSI_PHY_7NM_QUIRK_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);
@@ -772,7 +775,7 @@ 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->type == MSM_DSI_PHY_7NM_V4_1)
+	if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1)
 		tx_dctrl = tx_dctrl_1;
 
 	/* Strength ctrl settings */
@@ -836,7 +839,7 @@ static int dsi_7nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
 	/* Alter PHY configurations if data rate less than 1.5GHZ*/
 	less_than_1500_mhz = (clk_req->bitclk_rate <= 1500000000);
 
-	if (phy->cfg->type == MSM_DSI_PHY_7NM_V4_1) {
+	if (phy->cfg->quirks & DSI_PHY_7NM_QUIRK_V4_1) {
 		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;
@@ -953,7 +956,6 @@ static void dsi_7nm_phy_disable(struct msm_dsi_phy *phy)
 }
 
 const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs = {
-	.type = MSM_DSI_PHY_7NM_V4_1,
 	.src_pll_truthtable = { {false, false}, {true, false} },
 	.has_phy_lane = true,
 	.reg_cfg = {
@@ -973,10 +975,10 @@ const struct msm_dsi_phy_cfg dsi_phy_7nm_cfgs = {
 	.max_pll_rate = 3500000000UL,
 	.io_start = { 0xae94400, 0xae96400 },
 	.num_dsi_phy = 2,
+	.quirks = DSI_PHY_7NM_QUIRK_V4_1,
 };
 
 const struct msm_dsi_phy_cfg dsi_phy_7nm_8150_cfgs = {
-	.type = MSM_DSI_PHY_7NM,
 	.src_pll_truthtable = { {false, false}, {true, false} },
 	.has_phy_lane = true,
 	.reg_cfg = {
-- 
2.30.0


  parent reply	other threads:[~2021-03-02  8:11 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-01 23:24 [RFC 00/24] drm/msm/dsi: refactor MSM DSI PHY/PLL drivers Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 02/24] drm/msm/dsi: drop multiple pll enable_seq support Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 03/24] drm/msm/dsi: move all PLL callbacks into PHY config struct Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 04/24] drm/msm/dsi: move min/max PLL rate to phy config Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 05/24] drm/msm/dsi: remove msm_dsi_pll_set_usecase Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 06/24] drm/msm/dsi: stop setting clock parents manually Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 07/24] arm64: dts: qcom: sm8250: assign DSI clock source parents Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 08/24] drm/msm/dsi: push provided clocks handling into a generic code Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 09/24] clk: mux: provide devm_clk_hw_register_mux() Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 10/24] clk: divider: add devm_clk_hw_register_divider Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 11/24] drm/msm/dsi: use devm_clk_*register to registe DSI PHY clocks Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 12/24] drm/msm/dsi: use devm_of_clk_add_hw_provider Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 13/24] drm/msm/dsi: replace PHY's init callback with configurable data Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 14/24] drm/msm/dsi: make save/restore_state phy-level functions Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 15/24] drm/msm/dsi: limit vco_delay to 28nm PHY Dmitry Baryshkov
2021-03-01 23:24 ` [RFC 16/24] drm/msi/dsi: inline msm_dsi_pll_helper_clk_prepare/unprepare Dmitry Baryshkov
2021-03-01 23:25 ` [RFC 17/24] drm/msm/dsi: make save_state/restore_state callbacks accept msm_dsi_phy Dmitry Baryshkov
2021-03-01 23:25 ` [RFC 18/24] drm/msm/dsi: drop msm_dsi_pll abstracton Dmitry Baryshkov
2021-03-01 23:25 ` [RFC 19/24] drm/msm/dsi: drop PLL accessor functions Dmitry Baryshkov
2021-03-01 23:25 ` [RFC 20/24] drm/msm/dsi: move ioremaps to dsi_phy_driver_probe Dmitry Baryshkov
2021-03-01 23:25 ` [RFC 21/24] drm/msm/dsi: remove duplicate fields from dsi_pll_Nnm instances Dmitry Baryshkov
2021-03-01 23:25 ` [RFC 22/24] drm/msm/dsi: remove temp data from global pll structure Dmitry Baryshkov
2021-03-01 23:25 ` Dmitry Baryshkov [this message]
2021-03-01 23:25 ` [RFC 24/24] arm64: dts: qcom: sdm845: assign DSI clock source parents Dmitry Baryshkov

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