From 44d8ca10789759f73bee50e7bb1695e7b8b8d22f Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Sat, 5 Aug 2017 01:44:10 +0300
Subject: drm: omapdrm: Move FEAT_DSI_* features to dsi driver

The FEAT_DSI_* features are specific to the DSI, move them from the
omap_dss_features structure to the dsi driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/gpu/drm/omapdrm/dss/dsi.c | 137 ++++++++++++++++++++++++--------------
 1 file changed, 88 insertions(+), 49 deletions(-)

(limited to 'drivers/gpu/drm/omapdrm/dss/dsi.c')

diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 3d98e9ce9a43..1af2c5329c99 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -44,6 +44,7 @@
 #include <linux/of_graph.h>
 #include <linux/of_platform.h>
 #include <linux/component.h>
+#include <linux/sys_soc.h>
 
 #include <video/mipi_display.h>
 
@@ -312,10 +313,20 @@ struct dsi_module_id_data {
 	int id;
 };
 
+enum dsi_quirks {
+	DSI_QUIRK_PLL_PWR_BUG = (1 << 0),	/* DSI-PLL power command 0x3 is not working */
+	DSI_QUIRK_DCS_CMD_CONFIG_VC = (1 << 1),
+	DSI_QUIRK_VC_OCP_WIDTH = (1 << 2),
+	DSI_QUIRK_REVERSE_TXCLKESC = (1 << 3),
+	DSI_QUIRK_GNQ = (1 << 4),
+	DSI_QUIRK_PHY_DCC = (1 << 5),
+};
+
 struct dsi_of_data {
 	enum dsi_model model;
 	const struct dss_pll_hw *pll_hw;
 	const struct dsi_module_id_data *modules;
+	enum dsi_quirks quirks;
 };
 
 struct dsi_data {
@@ -418,8 +429,6 @@ struct dsi_packet_sent_handler_data {
 	struct completion *completion;
 };
 
-static const struct of_device_id dsi_of_match[];
-
 #ifdef DSI_PERF_MEASURE
 static bool dsi_perf;
 module_param(dsi_perf, bool, 0644);
@@ -1202,6 +1211,7 @@ static int dsi_regulator_init(struct platform_device *dsidev)
 
 static void _dsi_print_reset_status(struct platform_device *dsidev)
 {
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	u32 l;
 	int b0, b1, b2;
 
@@ -1210,7 +1220,7 @@ static void _dsi_print_reset_status(struct platform_device *dsidev)
 	 * I/O. */
 	l = dsi_read_reg(dsidev, DSI_DSIPHY_CFG5);
 
-	if (dss_has_feature(FEAT_DSI_REVERSE_TXCLKESC)) {
+	if (dsi->data->quirks & DSI_QUIRK_REVERSE_TXCLKESC) {
 		b0 = 28;
 		b1 = 27;
 		b2 = 26;
@@ -1365,11 +1375,12 @@ enum dsi_pll_power_state {
 static int dsi_pll_power(struct platform_device *dsidev,
 		enum dsi_pll_power_state state)
 {
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	int t = 0;
 
 	/* DSI-PLL power command 0x3 is not working */
-	if (dss_has_feature(FEAT_DSI_PLL_PWR_BUG) &&
-			state == DSI_PLL_POWER_ON_DIV)
+	if ((dsi->data->quirks & DSI_QUIRK_PLL_PWR_BUG) &&
+	    state == DSI_PLL_POWER_ON_DIV)
 		state = DSI_PLL_POWER_ON_ALL;
 
 	/* PLL_PWR_CMD */
@@ -1789,13 +1800,14 @@ static int dsi_cio_power(struct platform_device *dsidev,
 
 static unsigned dsi_get_line_buf_size(struct platform_device *dsidev)
 {
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	int val;
 
 	/* line buffer on OMAP3 is 1024 x 24bits */
 	/* XXX: for some reason using full buffer size causes
 	 * considerable TX slowdown with update sizes that fill the
 	 * whole buffer */
-	if (!dss_has_feature(FEAT_DSI_GNQ))
+	if (!(dsi->data->quirks & DSI_QUIRK_GNQ))
 		return 1023 * 3;
 
 	val = REG_GET(dsidev, DSI_GNQ, 14, 12); /* VP1_LINE_BUFFER_SIZE */
@@ -1888,6 +1900,7 @@ static inline unsigned ddr2ns(struct platform_device *dsidev, unsigned ddr)
 
 static void dsi_cio_timings(struct platform_device *dsidev)
 {
+	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
 	u32 r;
 	u32 ths_prepare, ths_prepare_ths_zero, ths_trail, ths_exit;
 	u32 tlpx_half, tclk_trail, tclk_zero;
@@ -1950,7 +1963,7 @@ static void dsi_cio_timings(struct platform_device *dsidev)
 	r = FLD_MOD(r, tclk_trail, 15, 8);
 	r = FLD_MOD(r, tclk_zero, 7, 0);
 
-	if (dss_has_feature(FEAT_DSI_PHY_DCC)) {
+	if (dsi->data->quirks & DSI_QUIRK_PHY_DCC) {
 		r = FLD_MOD(r, 0, 21, 21);	/* DCCEN = disable */
 		r = FLD_MOD(r, 1, 22, 22);	/* CLKINP_DIVBY2EN = enable */
 		r = FLD_MOD(r, 1, 23, 23);	/* CLKINP_SEL = enable */
@@ -2022,7 +2035,7 @@ static int dsi_cio_wait_tx_clk_esc_reset(struct platform_device *dsidev)
 	static const u8 offsets_new[] = { 24, 25, 26, 27, 28 };
 	const u8 *offsets;
 
-	if (dss_has_feature(FEAT_DSI_REVERSE_TXCLKESC))
+	if (dsi->data->quirks & DSI_QUIRK_REVERSE_TXCLKESC)
 		offsets = offsets_old;
 	else
 		offsets = offsets_new;
@@ -2513,7 +2526,7 @@ static void dsi_vc_initial_config(struct platform_device *dsidev, int channel)
 	r = FLD_MOD(r, 1, 7, 7); /* CS_TX_EN */
 	r = FLD_MOD(r, 1, 8, 8); /* ECC_TX_EN */
 	r = FLD_MOD(r, 0, 9, 9); /* MODE_SPEED, high speed on/off */
-	if (dss_has_feature(FEAT_DSI_VC_OCP_WIDTH))
+	if (dsi->data->quirks & DSI_QUIRK_VC_OCP_WIDTH)
 		r = FLD_MOD(r, 3, 11, 10);	/* OCP_WIDTH = 32 bit */
 
 	r = FLD_MOD(r, 4, 29, 27); /* DMA_RX_REQ_NB = no dma */
@@ -2548,7 +2561,7 @@ static int dsi_vc_config_source(struct platform_device *dsidev, int channel,
 	REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), source, 1, 1);
 
 	/* DCS_CMD_ENABLE */
-	if (dss_has_feature(FEAT_DSI_DCS_CMD_CONFIG_VC)) {
+	if (dsi->data->quirks & DSI_QUIRK_DCS_CMD_CONFIG_VC) {
 		bool enable = source == DSI_VC_SOURCE_VP;
 		REG_FLD_MOD(dsidev, DSI_VC_CTRL(channel), enable, 30, 30);
 	}
@@ -3681,7 +3694,7 @@ static int dsi_proto_config(struct platform_device *dsidev)
 	r = FLD_MOD(r, 0, 8, 8);	/* VP_CLK_POL */
 	r = FLD_MOD(r, 1, 14, 14);	/* TRIGGER_RESET_MODE */
 	r = FLD_MOD(r, 1, 19, 19);	/* EOT_ENABLE */
-	if (!dss_has_feature(FEAT_DSI_DCS_CMD_CONFIG_VC)) {
+	if (!(dsi->data->quirks & DSI_QUIRK_DCS_CMD_CONFIG_VC)) {
 		r = FLD_MOD(r, 1, 24, 24);	/* DCS_CMD_ENABLE */
 		/* DCS_CMD_CODE, 1=start, 0=continue */
 		r = FLD_MOD(r, 0, 25, 25);
@@ -5315,9 +5328,66 @@ static int dsi_init_pll_data(struct platform_device *dsidev)
 }
 
 /* DSI1 HW IP initialisation */
+static const struct dsi_of_data dsi_of_data_omap34xx = {
+	.model = DSI_MODEL_OMAP3,
+	.pll_hw = &dss_omap3_dsi_pll_hw,
+	.modules = (const struct dsi_module_id_data[]) {
+		{ .address = 0x4804fc00, .id = 0, },
+		{ },
+	},
+	.quirks = DSI_QUIRK_REVERSE_TXCLKESC,
+};
+
+static const struct dsi_of_data dsi_of_data_omap36xx = {
+	.model = DSI_MODEL_OMAP3,
+	.pll_hw = &dss_omap3_dsi_pll_hw,
+	.modules = (const struct dsi_module_id_data[]) {
+		{ .address = 0x4804fc00, .id = 0, },
+		{ },
+	},
+	.quirks = DSI_QUIRK_PLL_PWR_BUG,
+};
+
+static const struct dsi_of_data dsi_of_data_omap4 = {
+	.model = DSI_MODEL_OMAP4,
+	.pll_hw = &dss_omap4_dsi_pll_hw,
+	.modules = (const struct dsi_module_id_data[]) {
+		{ .address = 0x58004000, .id = 0, },
+		{ .address = 0x58005000, .id = 1, },
+		{ },
+	},
+	.quirks = DSI_QUIRK_DCS_CMD_CONFIG_VC | DSI_QUIRK_VC_OCP_WIDTH
+		| DSI_QUIRK_GNQ,
+};
+
+static const struct dsi_of_data dsi_of_data_omap5 = {
+	.model = DSI_MODEL_OMAP5,
+	.pll_hw = &dss_omap5_dsi_pll_hw,
+	.modules = (const struct dsi_module_id_data[]) {
+		{ .address = 0x58004000, .id = 0, },
+		{ .address = 0x58009000, .id = 1, },
+		{ },
+	},
+	.quirks = DSI_QUIRK_DCS_CMD_CONFIG_VC | DSI_QUIRK_VC_OCP_WIDTH
+		| DSI_QUIRK_GNQ | DSI_QUIRK_PHY_DCC,
+};
+
+static const struct of_device_id dsi_of_match[] = {
+	{ .compatible = "ti,omap3-dsi", .data = &dsi_of_data_omap36xx, },
+	{ .compatible = "ti,omap4-dsi", .data = &dsi_of_data_omap4, },
+	{ .compatible = "ti,omap5-dsi", .data = &dsi_of_data_omap5, },
+	{},
+};
+
+static const struct soc_device_attribute dsi_soc_devices[] = {
+	{ .machine = "OMAP3[45]*",	.data = &dsi_of_data_omap34xx },
+	{ .machine = "AM35*",		.data = &dsi_of_data_omap34xx },
+	{ /* sentinel */ }
+};
 static int dsi_bind(struct device *dev, struct device *master, void *data)
 {
 	struct platform_device *dsidev = to_platform_device(dev);
+	const struct soc_device_attribute *soc;
 	const struct dsi_module_id_data *d;
 	u32 rev;
 	int r, i;
@@ -5381,7 +5451,12 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 		return r;
 	}
 
-	dsi->data = of_match_node(dsi_of_match, dsidev->dev.of_node)->data;
+	soc = soc_device_match(dsi_soc_devices);
+	if (soc)
+		dsi->data = soc->data;
+	else
+		dsi->data = of_match_node(dsi_of_match, dev->of_node)->data;
+
 	d = dsi->data->modules;
 	while (d->address != 0 && d->address != dsi_mem->start)
 		d++;
@@ -5433,7 +5508,7 @@ static int dsi_bind(struct device *dev, struct device *master, void *data)
 
 	/* DSI on OMAP3 doesn't have register DSI_GNQ, set number
 	 * of data to 3 by default */
-	if (dss_has_feature(FEAT_DSI_GNQ))
+	if (dsi->data->quirks & DSI_QUIRK_GNQ)
 		/* NB_DATA_LANES */
 		dsi->num_lanes_supported = 1 + REG_GET(dsidev, DSI_GNQ, 11, 9);
 	else
@@ -5553,42 +5628,6 @@ static const struct dev_pm_ops dsi_pm_ops = {
 	.runtime_resume = dsi_runtime_resume,
 };
 
-static const struct dsi_of_data dsi_of_data_omap3 = {
-	.model = DSI_MODEL_OMAP3,
-	.pll_hw = &dss_omap3_dsi_pll_hw,
-	.modules = (const struct dsi_module_id_data[]) {
-		{ .address = 0x4804fc00, .id = 0, },
-		{ },
-	},
-};
-
-static const struct dsi_of_data dsi_of_data_omap4 = {
-	.model = DSI_MODEL_OMAP4,
-	.pll_hw = &dss_omap4_dsi_pll_hw,
-	.modules = (const struct dsi_module_id_data[]) {
-		{ .address = 0x58004000, .id = 0, },
-		{ .address = 0x58005000, .id = 1, },
-		{ },
-	},
-};
-
-static const struct dsi_of_data dsi_of_data_omap5 = {
-	.model = DSI_MODEL_OMAP5,
-	.pll_hw = &dss_omap5_dsi_pll_hw,
-	.modules = (const struct dsi_module_id_data[]) {
-		{ .address = 0x58004000, .id = 0, },
-		{ .address = 0x58009000, .id = 1, },
-		{ },
-	},
-};
-
-static const struct of_device_id dsi_of_match[] = {
-	{ .compatible = "ti,omap3-dsi", .data = &dsi_of_data_omap3, },
-	{ .compatible = "ti,omap4-dsi", .data = &dsi_of_data_omap4, },
-	{ .compatible = "ti,omap5-dsi", .data = &dsi_of_data_omap5, },
-	{},
-};
-
 static struct platform_driver omap_dsihw_driver = {
 	.probe		= dsi_probe,
 	.remove		= dsi_remove,
-- 
cgit