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authorDave Airlie <airlied@redhat.com>2023-10-31 03:47:49 +0300
committerDave Airlie <airlied@redhat.com>2023-10-31 03:47:50 +0300
commit915b6d034b54425b42705c8772ddb7a121759eb1 (patch)
treece5ee56eeed1f482a9b872b8472f5edf9269baca /drivers/gpu/drm/bridge
parent5258dfd4a6adb5f45f046b0dd2e73c680f880d9d (diff)
parentb70438004a14f4d0f9890b3297cd66248728546c (diff)
downloadlinux-915b6d034b54425b42705c8772ddb7a121759eb1.tar.xz
Merge tag 'drm-misc-next-2023-10-27' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.7-rc1: drm-misc-next-2023-10-19 + following: UAPI Changes: Cross-subsystem Changes: - Convert fbdev drivers to use fbdev i/o mem helpers. Core Changes: - Use cross-references for macros in docs. - Make drm_client_buffer_addb use addfb2. - Add NV20 and NV30 YUV formats. - Documentation updates for create_dumb ioctl. - CI fixes. - Allow variable number of run-queues in scheduler. Driver Changes: - Rename drm/ast constants. - Make ili9882t its own driver. - Assorted fixes in ivpu, vc4, bridge/synopsis, amdgpu. - Add planar formats to rockchip. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/3d92fae8-9b1b-4165-9ca8-5fda11ee146b@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/bridge')
-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7511.h16
-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7511_cec.c14
-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7511_drv.c104
-rw-r--r--drivers/gpu/drm/bridge/adv7511/adv7533.c7
-rw-r--r--drivers/gpu/drm/bridge/imx/Kconfig11
-rw-r--r--drivers/gpu/drm/bridge/imx/Makefile1
-rw-r--r--drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c917
-rw-r--r--drivers/gpu/drm/bridge/lontium-lt9611uxc.c10
-rw-r--r--drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c57
-rw-r--r--drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c97
10 files changed, 1118 insertions, 116 deletions
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h
index 17445800248d..39c9ece373b0 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511.h
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h
@@ -333,6 +333,18 @@ enum adv7511_type {
#define ADV7511_MAX_ADDRS 3
+struct adv7511_chip_info {
+ enum adv7511_type type;
+ unsigned int max_mode_clock_khz;
+ unsigned int max_lane_freq_khz;
+ const char * const *supply_names;
+ unsigned int num_supplies;
+ unsigned int reg_cec_offset;
+ bool has_dsi;
+ bool link_config;
+ bool hpd_override_enable;
+};
+
struct adv7511 {
struct i2c_client *i2c_main;
struct i2c_client *i2c_edid;
@@ -341,7 +353,6 @@ struct adv7511 {
struct regmap *regmap;
struct regmap *regmap_cec;
- unsigned int reg_cec_offset;
enum drm_connector_status status;
bool powered;
@@ -369,7 +380,6 @@ struct adv7511 {
struct gpio_desc *gpio_pd;
struct regulator_bulk_data *supplies;
- unsigned int num_supplies;
/* ADV7533 DSI RX related params */
struct device_node *host_node;
@@ -377,7 +387,7 @@ struct adv7511 {
u8 num_dsi_lanes;
bool use_timing_gen;
- enum adv7511_type type;
+ const struct adv7511_chip_info *info;
struct platform_device *audio_pdev;
struct cec_adapter *cec_adap;
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c b/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c
index 2a6b91f752cb..44451a9658a3 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_cec.c
@@ -33,7 +33,7 @@ static const u8 ADV7511_REG_CEC_RX_FRAME_LEN[] = {
static void adv_cec_tx_raw_status(struct adv7511 *adv7511, u8 tx_raw_status)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
unsigned int val;
if (regmap_read(adv7511->regmap_cec,
@@ -84,7 +84,7 @@ static void adv_cec_tx_raw_status(struct adv7511 *adv7511, u8 tx_raw_status)
static void adv7511_cec_rx(struct adv7511 *adv7511, int rx_buf)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
struct cec_msg msg = {};
unsigned int len;
unsigned int val;
@@ -121,7 +121,7 @@ static void adv7511_cec_rx(struct adv7511 *adv7511, int rx_buf)
void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
const u32 irq_tx_mask = ADV7511_INT1_CEC_TX_READY |
ADV7511_INT1_CEC_TX_ARBIT_LOST |
ADV7511_INT1_CEC_TX_RETRY_TIMEOUT;
@@ -177,7 +177,7 @@ void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1)
static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
if (adv7511->i2c_cec == NULL)
return -EIO;
@@ -223,7 +223,7 @@ static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
unsigned int i, free_idx = ADV7511_MAX_ADDRS;
if (!adv7511->cec_enabled_adap)
@@ -292,7 +292,7 @@ static int adv7511_cec_adap_transmit(struct cec_adapter *adap, u8 attempts,
u32 signal_free_time, struct cec_msg *msg)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
u8 len = msg->len;
unsigned int i;
@@ -345,7 +345,7 @@ static int adv7511_cec_parse_dt(struct device *dev, struct adv7511 *adv7511)
int adv7511_cec_init(struct device *dev, struct adv7511 *adv7511)
{
- unsigned int offset = adv7511->reg_cec_offset;
+ unsigned int offset = adv7511->info->reg_cec_offset;
int ret = adv7511_cec_parse_dt(dev, adv7511);
if (ret)
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index d518de88b5c3..8be235144f6d 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -354,7 +354,7 @@ static void __adv7511_power_on(struct adv7511 *adv7511)
* first few seconds after enabling the output. On the other hand
* adv7535 require to enable HPD Override bit for proper HPD.
*/
- if (adv7511->type == ADV7535)
+ if (adv7511->info->hpd_override_enable)
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7535_REG_POWER2_HPD_OVERRIDE,
ADV7535_REG_POWER2_HPD_OVERRIDE);
@@ -373,7 +373,7 @@ static void adv7511_power_on(struct adv7511 *adv7511)
*/
regcache_sync(adv7511->regmap);
- if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
+ if (adv7511->info->has_dsi)
adv7533_dsi_power_on(adv7511);
adv7511->powered = true;
}
@@ -381,7 +381,7 @@ static void adv7511_power_on(struct adv7511 *adv7511)
static void __adv7511_power_off(struct adv7511 *adv7511)
{
/* TODO: setup additional power down modes */
- if (adv7511->type == ADV7535)
+ if (adv7511->info->hpd_override_enable)
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7535_REG_POWER2_HPD_OVERRIDE, 0);
@@ -397,7 +397,7 @@ static void __adv7511_power_off(struct adv7511 *adv7511)
static void adv7511_power_off(struct adv7511 *adv7511)
{
__adv7511_power_off(adv7511);
- if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
+ if (adv7511->info->has_dsi)
adv7533_dsi_power_off(adv7511);
adv7511->powered = false;
}
@@ -682,7 +682,7 @@ adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
status = connector_status_disconnected;
} else {
/* Renable HPD sensing */
- if (adv7511->type == ADV7535)
+ if (adv7511->info->hpd_override_enable)
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
ADV7535_REG_POWER2_HPD_OVERRIDE,
ADV7535_REG_POWER2_HPD_OVERRIDE);
@@ -786,7 +786,7 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
else
low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
- if (adv7511->type == ADV7511)
+ if (adv7511->info->type == ADV7511)
regmap_update_bits(adv7511->regmap, 0xfb,
0x6, low_refresh_rate << 1);
else
@@ -921,7 +921,7 @@ static enum drm_mode_status adv7511_bridge_mode_valid(struct drm_bridge *bridge,
{
struct adv7511 *adv = bridge_to_adv7511(bridge);
- if (adv->type == ADV7533 || adv->type == ADV7535)
+ if (adv->info->has_dsi)
return adv7533_mode_valid(adv, mode);
else
return adv7511_mode_valid(adv, mode);
@@ -1004,37 +1004,30 @@ static const char * const adv7533_supply_names[] = {
static int adv7511_init_regulators(struct adv7511 *adv)
{
+ const char * const *supply_names = adv->info->supply_names;
+ unsigned int num_supplies = adv->info->num_supplies;
struct device *dev = &adv->i2c_main->dev;
- const char * const *supply_names;
unsigned int i;
int ret;
- if (adv->type == ADV7511) {
- supply_names = adv7511_supply_names;
- adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
- } else {
- supply_names = adv7533_supply_names;
- adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
- }
-
- adv->supplies = devm_kcalloc(dev, adv->num_supplies,
+ adv->supplies = devm_kcalloc(dev, num_supplies,
sizeof(*adv->supplies), GFP_KERNEL);
if (!adv->supplies)
return -ENOMEM;
- for (i = 0; i < adv->num_supplies; i++)
+ for (i = 0; i < num_supplies; i++)
adv->supplies[i].supply = supply_names[i];
- ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
+ ret = devm_regulator_bulk_get(dev, num_supplies, adv->supplies);
if (ret)
return ret;
- return regulator_bulk_enable(adv->num_supplies, adv->supplies);
+ return regulator_bulk_enable(num_supplies, adv->supplies);
}
static void adv7511_uninit_regulators(struct adv7511 *adv)
{
- regulator_bulk_disable(adv->num_supplies, adv->supplies);
+ regulator_bulk_disable(adv->info->num_supplies, adv->supplies);
}
static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg)
@@ -1042,7 +1035,7 @@ static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg)
struct i2c_client *i2c = to_i2c_client(dev);
struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
- reg -= adv7511->reg_cec_offset;
+ reg -= adv7511->info->reg_cec_offset;
switch (reg) {
case ADV7511_REG_CEC_RX1_FRAME_HDR:
@@ -1093,12 +1086,10 @@ static int adv7511_init_cec_regmap(struct adv7511 *adv)
goto err;
}
- if (adv->type == ADV7533 || adv->type == ADV7535) {
+ if (adv->info->reg_cec_offset == ADV7533_REG_CEC_OFFSET) {
ret = adv7533_patch_cec_registers(adv);
if (ret)
goto err;
-
- adv->reg_cec_offset = ADV7533_REG_CEC_OFFSET;
}
return 0;
@@ -1192,7 +1183,6 @@ static int adv7511_parse_dt(struct device_node *np,
static int adv7511_probe(struct i2c_client *i2c)
{
- const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
struct adv7511_link_config link_config;
struct adv7511 *adv7511;
struct device *dev = &i2c->dev;
@@ -1209,15 +1199,11 @@ static int adv7511_probe(struct i2c_client *i2c)
adv7511->i2c_main = i2c;
adv7511->powered = false;
adv7511->status = connector_status_disconnected;
-
- if (dev->of_node)
- adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
- else
- adv7511->type = id->driver_data;
+ adv7511->info = i2c_get_match_data(i2c);
memset(&link_config, 0, sizeof(link_config));
- if (adv7511->type == ADV7511)
+ if (adv7511->info->link_config)
ret = adv7511_parse_dt(dev->of_node, &link_config);
else
ret = adv7533_parse_dt(dev->of_node, adv7511);
@@ -1254,7 +1240,7 @@ static int adv7511_probe(struct i2c_client *i2c)
goto uninit_regulators;
dev_dbg(dev, "Rev. %d\n", val);
- if (adv7511->type == ADV7511)
+ if (adv7511->info->type == ADV7511)
ret = regmap_register_patch(adv7511->regmap,
adv7511_fixed_registers,
ARRAY_SIZE(adv7511_fixed_registers));
@@ -1306,7 +1292,7 @@ static int adv7511_probe(struct i2c_client *i2c)
i2c_set_clientdata(i2c, adv7511);
- if (adv7511->type == ADV7511)
+ if (adv7511->info->link_config)
adv7511_set_link_config(adv7511, &link_config);
ret = adv7511_cec_init(dev, adv7511);
@@ -1325,7 +1311,7 @@ static int adv7511_probe(struct i2c_client *i2c)
adv7511_audio_init(dev, adv7511);
- if (adv7511->type == ADV7533 || adv7511->type == ADV7535) {
+ if (adv7511->info->has_dsi) {
ret = adv7533_attach_dsi(adv7511);
if (ret)
goto err_unregister_audio;
@@ -1368,22 +1354,50 @@ static void adv7511_remove(struct i2c_client *i2c)
i2c_unregister_device(adv7511->i2c_edid);
}
+static const struct adv7511_chip_info adv7511_chip_info = {
+ .type = ADV7511,
+ .supply_names = adv7511_supply_names,
+ .num_supplies = ARRAY_SIZE(adv7511_supply_names),
+ .link_config = true,
+};
+
+static const struct adv7511_chip_info adv7533_chip_info = {
+ .type = ADV7533,
+ .max_mode_clock_khz = 80000,
+ .max_lane_freq_khz = 800000,
+ .supply_names = adv7533_supply_names,
+ .num_supplies = ARRAY_SIZE(adv7533_supply_names),
+ .reg_cec_offset = ADV7533_REG_CEC_OFFSET,
+ .has_dsi = true,
+};
+
+static const struct adv7511_chip_info adv7535_chip_info = {
+ .type = ADV7535,
+ .max_mode_clock_khz = 148500,
+ .max_lane_freq_khz = 891000,
+ .supply_names = adv7533_supply_names,
+ .num_supplies = ARRAY_SIZE(adv7533_supply_names),
+ .reg_cec_offset = ADV7533_REG_CEC_OFFSET,
+ .has_dsi = true,
+ .hpd_override_enable = true,
+};
+
static const struct i2c_device_id adv7511_i2c_ids[] = {
- { "adv7511", ADV7511 },
- { "adv7511w", ADV7511 },
- { "adv7513", ADV7511 },
- { "adv7533", ADV7533 },
- { "adv7535", ADV7535 },
+ { "adv7511", (kernel_ulong_t)&adv7511_chip_info },
+ { "adv7511w", (kernel_ulong_t)&adv7511_chip_info },
+ { "adv7513", (kernel_ulong_t)&adv7511_chip_info },
+ { "adv7533", (kernel_ulong_t)&adv7533_chip_info },
+ { "adv7535", (kernel_ulong_t)&adv7535_chip_info },
{ }
};
MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
static const struct of_device_id adv7511_of_ids[] = {
- { .compatible = "adi,adv7511", .data = (void *)ADV7511 },
- { .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
- { .compatible = "adi,adv7513", .data = (void *)ADV7511 },
- { .compatible = "adi,adv7533", .data = (void *)ADV7533 },
- { .compatible = "adi,adv7535", .data = (void *)ADV7535 },
+ { .compatible = "adi,adv7511", .data = &adv7511_chip_info },
+ { .compatible = "adi,adv7511w", .data = &adv7511_chip_info },
+ { .compatible = "adi,adv7513", .data = &adv7511_chip_info },
+ { .compatible = "adi,adv7533", .data = &adv7533_chip_info },
+ { .compatible = "adi,adv7535", .data = &adv7535_chip_info },
{ }
};
MODULE_DEVICE_TABLE(of, adv7511_of_ids);
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7533.c b/drivers/gpu/drm/bridge/adv7511/adv7533.c
index 7e3e56441aed..4481489aaf5e 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7533.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7533.c
@@ -103,18 +103,15 @@ void adv7533_dsi_power_off(struct adv7511 *adv)
enum drm_mode_status adv7533_mode_valid(struct adv7511 *adv,
const struct drm_display_mode *mode)
{
- unsigned long max_lane_freq;
struct mipi_dsi_device *dsi = adv->dsi;
u8 bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
/* Check max clock for either 7533 or 7535 */
- if (mode->clock > (adv->type == ADV7533 ? 80000 : 148500))
+ if (mode->clock > adv->info->max_mode_clock_khz)
return MODE_CLOCK_HIGH;
/* Check max clock for each lane */
- max_lane_freq = (adv->type == ADV7533 ? 800000 : 891000);
-
- if (mode->clock * bpp > max_lane_freq * adv->num_dsi_lanes)
+ if (mode->clock * bpp > adv->info->max_lane_freq_khz * adv->num_dsi_lanes)
return MODE_CLOCK_HIGH;
return MODE_OK;
diff --git a/drivers/gpu/drm/bridge/imx/Kconfig b/drivers/gpu/drm/bridge/imx/Kconfig
index 9fae28db6aa7..5a4f3d58501e 100644
--- a/drivers/gpu/drm/bridge/imx/Kconfig
+++ b/drivers/gpu/drm/bridge/imx/Kconfig
@@ -49,4 +49,15 @@ config DRM_IMX8QXP_PIXEL_LINK_TO_DPI
Choose this to enable pixel link to display pixel interface(PXL2DPI)
found in Freescale i.MX8qxp processor.
+config DRM_IMX93_MIPI_DSI
+ tristate "Freescale i.MX93 specific extensions for Synopsys DW MIPI DSI"
+ depends on OF
+ depends on COMMON_CLK
+ select DRM_DW_MIPI_DSI
+ select GENERIC_PHY
+ select GENERIC_PHY_MIPI_DPHY
+ help
+ Choose this to enable MIPI DSI controller found in Freescale i.MX93
+ processor.
+
endif # ARCH_MXC || COMPILE_TEST
diff --git a/drivers/gpu/drm/bridge/imx/Makefile b/drivers/gpu/drm/bridge/imx/Makefile
index 8e2ebf3399a1..2b0c2e44aa1b 100644
--- a/drivers/gpu/drm/bridge/imx/Makefile
+++ b/drivers/gpu/drm/bridge/imx/Makefile
@@ -4,3 +4,4 @@ obj-$(CONFIG_DRM_IMX8QXP_LDB) += imx8qxp-ldb.o
obj-$(CONFIG_DRM_IMX8QXP_PIXEL_COMBINER) += imx8qxp-pixel-combiner.o
obj-$(CONFIG_DRM_IMX8QXP_PIXEL_LINK) += imx8qxp-pixel-link.o
obj-$(CONFIG_DRM_IMX8QXP_PIXEL_LINK_TO_DPI) += imx8qxp-pxl2dpi.o
+obj-$(CONFIG_DRM_IMX93_MIPI_DSI) += imx93-mipi-dsi.o
diff --git a/drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c b/drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c
new file mode 100644
index 000000000000..3ff30ce80c5b
--- /dev/null
+++ b/drivers/gpu/drm/bridge/imx/imx93-mipi-dsi.c
@@ -0,0 +1,917 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2022,2023 NXP
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/math.h>
+#include <linux/media-bus-format.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/phy/phy-mipi-dphy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <drm/bridge/dw_mipi_dsi.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+
+/* DPHY PLL configuration registers */
+#define DSI_REG 0x4c
+#define CFGCLKFREQRANGE_MASK GENMASK(5, 0)
+#define CFGCLKFREQRANGE(x) FIELD_PREP(CFGCLKFREQRANGE_MASK, (x))
+#define CLKSEL_MASK GENMASK(7, 6)
+#define CLKSEL_STOP FIELD_PREP(CLKSEL_MASK, 0)
+#define CLKSEL_GEN FIELD_PREP(CLKSEL_MASK, 1)
+#define CLKSEL_EXT FIELD_PREP(CLKSEL_MASK, 2)
+#define HSFREQRANGE_MASK GENMASK(14, 8)
+#define HSFREQRANGE(x) FIELD_PREP(HSFREQRANGE_MASK, (x))
+#define UPDATE_PLL BIT(17)
+#define SHADOW_CLR BIT(18)
+#define CLK_EXT BIT(19)
+
+#define DSI_WRITE_REG0 0x50
+#define M_MASK GENMASK(9, 0)
+#define M(x) FIELD_PREP(M_MASK, ((x) - 2))
+#define N_MASK GENMASK(13, 10)
+#define N(x) FIELD_PREP(N_MASK, ((x) - 1))
+#define VCO_CTRL_MASK GENMASK(19, 14)
+#define VCO_CTRL(x) FIELD_PREP(VCO_CTRL_MASK, (x))
+#define PROP_CTRL_MASK GENMASK(25, 20)
+#define PROP_CTRL(x) FIELD_PREP(PROP_CTRL_MASK, (x))
+#define INT_CTRL_MASK GENMASK(31, 26)
+#define INT_CTRL(x) FIELD_PREP(INT_CTRL_MASK, (x))
+
+#define DSI_WRITE_REG1 0x54
+#define GMP_CTRL_MASK GENMASK(1, 0)
+#define GMP_CTRL(x) FIELD_PREP(GMP_CTRL_MASK, (x))
+#define CPBIAS_CTRL_MASK GENMASK(8, 2)
+#define CPBIAS_CTRL(x) FIELD_PREP(CPBIAS_CTRL_MASK, (x))
+#define PLL_SHADOW_CTRL BIT(9)
+
+/* display mux control register */
+#define DISPLAY_MUX 0x60
+#define MIPI_DSI_RGB666_MAP_CFG GENMASK(7, 6)
+#define RGB666_CONFIG1 FIELD_PREP(MIPI_DSI_RGB666_MAP_CFG, 0)
+#define RGB666_CONFIG2 FIELD_PREP(MIPI_DSI_RGB666_MAP_CFG, 1)
+#define MIPI_DSI_RGB565_MAP_CFG GENMASK(5, 4)
+#define RGB565_CONFIG1 FIELD_PREP(MIPI_DSI_RGB565_MAP_CFG, 0)
+#define RGB565_CONFIG2 FIELD_PREP(MIPI_DSI_RGB565_MAP_CFG, 1)
+#define RGB565_CONFIG3 FIELD_PREP(MIPI_DSI_RGB565_MAP_CFG, 2)
+#define LCDIF_CROSS_LINE_PATTERN GENMASK(3, 0)
+#define RGB888_TO_RGB888 FIELD_PREP(LCDIF_CROSS_LINE_PATTERN, 0)
+#define RGB888_TO_RGB666 FIELD_PREP(LCDIF_CROSS_LINE_PATTERN, 6)
+#define RGB565_TO_RGB565 FIELD_PREP(LCDIF_CROSS_LINE_PATTERN, 7)
+
+#define MHZ(x) ((x) * 1000000UL)
+
+#define REF_CLK_RATE_MAX MHZ(64)
+#define REF_CLK_RATE_MIN MHZ(2)
+#define FOUT_MAX MHZ(1250)
+#define FOUT_MIN MHZ(40)
+#define FVCO_DIV_FACTOR MHZ(80)
+
+#define MBPS(x) ((x) * 1000000UL)
+
+#define DATA_RATE_MAX_SPEED MBPS(2500)
+#define DATA_RATE_MIN_SPEED MBPS(80)
+
+#define M_MAX 625UL
+#define M_MIN 64UL
+
+#define N_MAX 16U
+#define N_MIN 1U
+
+struct imx93_dsi {
+ struct device *dev;
+ struct regmap *regmap;
+ struct clk *clk_pixel;
+ struct clk *clk_ref;
+ struct clk *clk_cfg;
+ struct dw_mipi_dsi *dmd;
+ struct dw_mipi_dsi_plat_data pdata;
+ union phy_configure_opts phy_cfg;
+ unsigned long ref_clk_rate;
+ u32 format;
+};
+
+struct dphy_pll_cfg {
+ u32 m; /* PLL Feedback Multiplication Ratio */
+ u32 n; /* PLL Input Frequency Division Ratio */
+};
+
+struct dphy_pll_vco_prop {
+ unsigned long max_fout;
+ u8 vco_cntl;
+ u8 prop_cntl;
+};
+
+struct dphy_pll_hsfreqrange {
+ unsigned long max_mbps;
+ u8 hsfreqrange;
+};
+
+/* DPHY Databook Table 3-13 Charge-pump Programmability */
+static const struct dphy_pll_vco_prop vco_prop_map[] = {
+ { 55, 0x3f, 0x0d },
+ { 82, 0x37, 0x0d },
+ { 110, 0x2f, 0x0d },
+ { 165, 0x27, 0x0d },
+ { 220, 0x1f, 0x0d },
+ { 330, 0x17, 0x0d },
+ { 440, 0x0f, 0x0d },
+ { 660, 0x07, 0x0d },
+ { 1149, 0x03, 0x0d },
+ { 1152, 0x01, 0x0d },
+ { 1250, 0x01, 0x0e },
+};
+
+/* DPHY Databook Table 5-7 Frequency Ranges and Defaults */
+static const struct dphy_pll_hsfreqrange hsfreqrange_map[] = {
+ { 89, 0x00 },
+ { 99, 0x10 },
+ { 109, 0x20 },
+ { 119, 0x30 },
+ { 129, 0x01 },
+ { 139, 0x11 },
+ { 149, 0x21 },
+ { 159, 0x31 },
+ { 169, 0x02 },
+ { 179, 0x12 },
+ { 189, 0x22 },
+ { 204, 0x32 },
+ { 219, 0x03 },
+ { 234, 0x13 },
+ { 249, 0x23 },
+ { 274, 0x33 },
+ { 299, 0x04 },
+ { 324, 0x14 },
+ { 349, 0x25 },
+ { 399, 0x35 },
+ { 449, 0x05 },
+ { 499, 0x16 },
+ { 549, 0x26 },
+ { 599, 0x37 },
+ { 649, 0x07 },
+ { 699, 0x18 },
+ { 749, 0x28 },
+ { 799, 0x39 },
+ { 849, 0x09 },
+ { 899, 0x19 },
+ { 949, 0x29 },
+ { 999, 0x3a },
+ { 1049, 0x0a },
+ { 1099, 0x1a },
+ { 1149, 0x2a },
+ { 1199, 0x3b },
+ { 1249, 0x0b },
+ { 1299, 0x1b },
+ { 1349, 0x2b },
+ { 1399, 0x3c },
+ { 1449, 0x0c },
+ { 1499, 0x1c },
+ { 1549, 0x2c },
+ { 1599, 0x3d },
+ { 1649, 0x0d },
+ { 1699, 0x1d },
+ { 1749, 0x2e },
+ { 1799, 0x3e },
+ { 1849, 0x0e },
+ { 1899, 0x1e },
+ { 1949, 0x2f },
+ { 1999, 0x3f },
+ { 2049, 0x0f },
+ { 2099, 0x40 },
+ { 2149, 0x41 },
+ { 2199, 0x42 },
+ { 2249, 0x43 },
+ { 2299, 0x44 },
+ { 2349, 0x45 },
+ { 2399, 0x46 },
+ { 2449, 0x47 },
+ { 2499, 0x48 },
+ { 2500, 0x49 },
+};
+
+static void dphy_pll_write(struct imx93_dsi *dsi, unsigned int reg, u32 value)
+{
+ int ret;
+
+ ret = regmap_write(dsi->regmap, reg, value);
+ if (ret < 0)
+ dev_err(dsi->dev, "failed to write 0x%08x to pll reg 0x%x: %d\n",
+ value, reg, ret);
+}
+
+static inline unsigned long data_rate_to_fout(unsigned long data_rate)
+{
+ /* Fout is half of data rate */
+ return data_rate / 2;
+}
+
+static int
+dphy_pll_get_configure_from_opts(struct imx93_dsi *dsi,
+ struct phy_configure_opts_mipi_dphy *dphy_opts,
+ struct dphy_pll_cfg *cfg)
+{
+ struct device *dev = dsi->dev;
+ unsigned long fin = dsi->ref_clk_rate;
+ unsigned long fout;
+ unsigned long best_fout = 0;
+ unsigned int fvco_div;
+ unsigned int min_n, max_n, n, best_n;
+ unsigned long m, best_m;
+ unsigned long min_delta = ULONG_MAX;
+ unsigned long delta;
+ u64 tmp;
+
+ if (dphy_opts->hs_clk_rate < DATA_RATE_MIN_SPEED ||
+ dphy_opts->hs_clk_rate > DATA_RATE_MAX_SPEED) {
+ dev_dbg(dev, "invalid data rate per lane: %lu\n",
+ dphy_opts->hs_clk_rate);
+ return -EINVAL;
+ }
+
+ fout = data_rate_to_fout(dphy_opts->hs_clk_rate);
+
+ /* DPHY Databook 3.3.6.1 Output Frequency */
+ /* Fout = Fvco / Fvco_div = (Fin * M) / (Fvco_div * N) */
+ /* Fvco_div could be 1/2/4/8 according to Fout range. */
+ fvco_div = 8UL / min(DIV_ROUND_UP(fout, FVCO_DIV_FACTOR), 8UL);
+
+ /* limitation: 2MHz <= Fin / N <= 8MHz */
+ min_n = DIV_ROUND_UP_ULL((u64)fin, MHZ(8));
+ max_n = DIV_ROUND_DOWN_ULL((u64)fin, MHZ(2));
+
+ /* clamp possible N(s) */
+ min_n = clamp(min_n, N_MIN, N_MAX);
+ max_n = clamp(max_n, N_MIN, N_MAX);
+
+ dev_dbg(dev, "Fout = %lu, Fvco_div = %u, n_range = [%u, %u]\n",
+ fout, fvco_div, min_n, max_n);
+
+ for (n = min_n; n <= max_n; n++) {
+ /* M = (Fout * N * Fvco_div) / Fin */
+ m = DIV_ROUND_CLOSEST(fout * n * fvco_div, fin);
+
+ /* check M range */
+ if (m < M_MIN || m > M_MAX)
+ continue;
+
+ /* calculate temporary Fout */
+ tmp = m * fin;
+ do_div(tmp, n * fvco_div);
+ if (tmp < FOUT_MIN || tmp > FOUT_MAX)
+ continue;
+
+ delta = abs(fout - tmp);
+ if (delta < min_delta) {
+ best_n = n;
+ best_m = m;
+ min_delta = delta;
+ best_fout = tmp;
+ }
+ }
+
+ if (best_fout) {
+ cfg->m = best_m;
+ cfg->n = best_n;
+ dev_dbg(dev, "best Fout = %lu, m = %u, n = %u\n",
+ best_fout, cfg->m, cfg->n);
+ } else {
+ dev_dbg(dev, "failed to find best Fout\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void dphy_pll_clear_shadow(struct imx93_dsi *dsi)
+{
+ /* Reference DPHY Databook Figure 3-3 Initialization Timing Diagram. */
+ /* Select clock generation first. */
+ dphy_pll_write(dsi, DSI_REG, CLKSEL_GEN);
+
+ /* Clear shadow after clock selection is done a while. */
+ fsleep(1);
+ dphy_pll_write(dsi, DSI_REG, CLKSEL_GEN | SHADOW_CLR);
+
+ /* A minimum pulse of 5ns on shadow_clear signal. */
+ fsleep(1);
+ dphy_pll_write(dsi, DSI_REG, CLKSEL_GEN);
+}
+
+static unsigned long dphy_pll_get_cfgclkrange(struct imx93_dsi *dsi)
+{
+ /*
+ * DPHY Databook Table 4-4 System Control Signals mentions an equation
+ * for cfgclkfreqrange[5:0].
+ */
+ return (clk_get_rate(dsi->clk_cfg) / MHZ(1) - 17) * 4;
+}
+
+static u8
+dphy_pll_get_hsfreqrange(struct phy_configure_opts_mipi_dphy *dphy_opts)
+{
+ unsigned long mbps = dphy_opts->hs_clk_rate / MHZ(1);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hsfreqrange_map); i++)
+ if (mbps <= hsfreqrange_map[i].max_mbps)
+ return hsfreqrange_map[i].hsfreqrange;
+
+ return 0;
+}
+
+static u8 dphy_pll_get_vco(struct phy_configure_opts_mipi_dphy *dphy_opts)
+{
+ unsigned long fout = data_rate_to_fout(dphy_opts->hs_clk_rate) / MHZ(1);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vco_prop_map); i++)
+ if (fout <= vco_prop_map[i].max_fout)
+ return vco_prop_map[i].vco_cntl;
+
+ return 0;
+}
+
+static u8 dphy_pll_get_prop(struct phy_configure_opts_mipi_dphy *dphy_opts)
+{
+ unsigned long fout = data_rate_to_fout(dphy_opts->hs_clk_rate) / MHZ(1);
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(vco_prop_map); i++)
+ if (fout <= vco_prop_map[i].max_fout)
+ return vco_prop_map[i].prop_cntl;
+
+ return 0;
+}
+
+static int dphy_pll_update(struct imx93_dsi *dsi)
+{
+ int ret;
+
+ ret = regmap_update_bits(dsi->regmap, DSI_REG, UPDATE_PLL, UPDATE_PLL);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to set UPDATE_PLL: %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * The updatepll signal should be asserted for a minimum of four clkin
+ * cycles, according to DPHY Databook Figure 3-3 Initialization Timing
+ * Diagram.
+ */
+ fsleep(10);
+
+ ret = regmap_update_bits(dsi->regmap, DSI_REG, UPDATE_PLL, 0);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to clear UPDATE_PLL: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int dphy_pll_configure(struct imx93_dsi *dsi, union phy_configure_opts *opts)
+{
+ struct dphy_pll_cfg cfg = { 0 };
+ u32 val;
+ int ret;
+
+ ret = dphy_pll_get_configure_from_opts(dsi, &opts->mipi_dphy, &cfg);
+ if (ret) {
+ dev_err(dsi->dev, "failed to get phy pll cfg %d\n", ret);
+ return ret;
+ }
+
+ dphy_pll_clear_shadow(dsi);
+
+ /* DSI_REG */
+ val = CLKSEL_GEN |
+ CFGCLKFREQRANGE(dphy_pll_get_cfgclkrange(dsi)) |
+ HSFREQRANGE(dphy_pll_get_hsfreqrange(&opts->mipi_dphy));
+ dphy_pll_write(dsi, DSI_REG, val);
+
+ /* DSI_WRITE_REG0 */
+ val = M(cfg.m) | N(cfg.n) | INT_CTRL(0) |
+ VCO_CTRL(dphy_pll_get_vco(&opts->mipi_dphy)) |
+ PROP_CTRL(dphy_pll_get_prop(&opts->mipi_dphy));
+ dphy_pll_write(dsi, DSI_WRITE_REG0, val);
+
+ /* DSI_WRITE_REG1 */
+ dphy_pll_write(dsi, DSI_WRITE_REG1, GMP_CTRL(1) | CPBIAS_CTRL(0x10));
+
+ ret = clk_prepare_enable(dsi->clk_ref);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to enable ref clock: %d\n", ret);
+ return ret;
+ }
+
+ /*
+ * At least 10 refclk cycles are required before updatePLL assertion,
+ * according to DPHY Databook Figure 3-3 Initialization Timing Diagram.
+ */
+ fsleep(10);
+
+ ret = dphy_pll_update(dsi);
+ if (ret < 0) {
+ clk_disable_unprepare(dsi->clk_ref);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void dphy_pll_clear_reg(struct imx93_dsi *dsi)
+{
+ dphy_pll_write(dsi, DSI_REG, 0);
+ dphy_pll_write(dsi, DSI_WRITE_REG0, 0);
+ dphy_pll_write(dsi, DSI_WRITE_REG1, 0);
+}
+
+static int dphy_pll_init(struct imx93_dsi *dsi)
+{
+ int ret;
+
+ ret = clk_prepare_enable(dsi->clk_cfg);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to enable config clock: %d\n", ret);
+ return ret;
+ }
+
+ dphy_pll_clear_reg(dsi);
+
+ return 0;
+}
+
+static void dphy_pll_uninit(struct imx93_dsi *dsi)
+{
+ dphy_pll_clear_reg(dsi);
+ clk_disable_unprepare(dsi->clk_cfg);
+}
+
+static void dphy_pll_power_off(struct imx93_dsi *dsi)
+{
+ dphy_pll_clear_reg(dsi);
+ clk_disable_unprepare(dsi->clk_ref);
+}
+
+static int imx93_dsi_get_phy_configure_opts(struct imx93_dsi *dsi,
+ const struct drm_display_mode *mode,
+ union phy_configure_opts *phy_cfg,
+ u32 lanes, u32 format)
+{
+ struct device *dev = dsi->dev;
+ int bpp;
+ int ret;
+
+ bpp = mipi_dsi_pixel_format_to_bpp(format);
+ if (bpp < 0) {
+ dev_dbg(dev, "failed to get bpp for pixel format %d\n", format);
+ return -EINVAL;
+ }
+
+ ret = phy_mipi_dphy_get_default_config(mode->clock * MSEC_PER_SEC, bpp,
+ lanes, &phy_cfg->mipi_dphy);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get default phy cfg %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static enum drm_mode_status
+imx93_dsi_validate_mode(struct imx93_dsi *dsi, const struct drm_display_mode *mode)
+{
+ struct drm_bridge *bridge = dw_mipi_dsi_get_bridge(dsi->dmd);
+
+ /* Get the last bridge */
+ while (drm_bridge_get_next_bridge(bridge))
+ bridge = drm_bridge_get_next_bridge(bridge);
+
+ if ((bridge->ops & DRM_BRIDGE_OP_DETECT) &&
+ (bridge->ops & DRM_BRIDGE_OP_EDID)) {
+ unsigned long pixel_clock_rate = mode->clock * 1000;
+ unsigned long rounded_rate;
+
+ /* Allow +/-0.5% pixel clock rate deviation */
+ rounded_rate = clk_round_rate(dsi->clk_pixel, pixel_clock_rate);
+ if (rounded_rate < pixel_clock_rate * 995 / 1000 ||
+ rounded_rate > pixel_clock_rate * 1005 / 1000) {
+ dev_dbg(dsi->dev, "failed to round clock for mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(mode));
+ return MODE_NOCLOCK;
+ }
+ }
+
+ return MODE_OK;
+}
+
+static enum drm_mode_status
+imx93_dsi_validate_phy(struct imx93_dsi *dsi, const struct drm_display_mode *mode,
+ unsigned long mode_flags, u32 lanes, u32 format)
+{
+ union phy_configure_opts phy_cfg;
+ struct dphy_pll_cfg cfg = { 0 };
+ struct device *dev = dsi->dev;
+ int ret;
+
+ ret = imx93_dsi_get_phy_configure_opts(dsi, mode, &phy_cfg, lanes,
+ format);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get phy cfg opts %d\n", ret);
+ return MODE_ERROR;
+ }
+
+ ret = dphy_pll_get_configure_from_opts(dsi, &phy_cfg.mipi_dphy, &cfg);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get phy pll cfg %d\n", ret);
+ return MODE_NOCLOCK;
+ }
+
+ return MODE_OK;
+}
+
+static enum drm_mode_status
+imx93_dsi_mode_valid(void *priv_data, const struct drm_display_mode *mode,
+ unsigned long mode_flags, u32 lanes, u32 format)
+{
+ struct imx93_dsi *dsi = priv_data;
+ struct device *dev = dsi->dev;
+ enum drm_mode_status ret;
+
+ ret = imx93_dsi_validate_mode(dsi, mode);
+ if (ret != MODE_OK) {
+ dev_dbg(dev, "failed to validate mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(mode));
+ return ret;
+ }
+
+ ret = imx93_dsi_validate_phy(dsi, mode, mode_flags, lanes, format);
+ if (ret != MODE_OK) {
+ dev_dbg(dev, "failed to validate phy for mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(mode));
+ return ret;
+ }
+
+ return MODE_OK;
+}
+
+static bool imx93_dsi_mode_fixup(void *priv_data,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ struct imx93_dsi *dsi = priv_data;
+ unsigned long pixel_clock_rate;
+ unsigned long rounded_rate;
+
+ pixel_clock_rate = mode->clock * 1000;
+ rounded_rate = clk_round_rate(dsi->clk_pixel, pixel_clock_rate);
+
+ memcpy(adjusted_mode, mode, sizeof(*mode));
+ adjusted_mode->clock = rounded_rate / 1000;
+
+ dev_dbg(dsi->dev, "adj clock %d for mode " DRM_MODE_FMT "\n",
+ adjusted_mode->clock, DRM_MODE_ARG(mode));
+
+ return true;
+}
+
+static u32 *imx93_dsi_get_input_bus_fmts(void *priv_data,
+ struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state,
+ u32 output_fmt,
+ unsigned int *num_input_fmts)
+{
+ u32 *input_fmts, input_fmt;
+
+ *num_input_fmts = 0;
+
+ switch (output_fmt) {
+ case MEDIA_BUS_FMT_RGB888_1X24:
+ case MEDIA_BUS_FMT_RGB666_1X18:
+ case MEDIA_BUS_FMT_FIXED:
+ input_fmt = MEDIA_BUS_FMT_RGB888_1X24;
+ break;
+ case MEDIA_BUS_FMT_RGB565_1X16:
+ input_fmt = output_fmt;
+ break;
+ default:
+ return NULL;
+ }
+
+ input_fmts = kmalloc(sizeof(*input_fmts), GFP_KERNEL);
+ if (!input_fmts)
+ return NULL;
+ input_fmts[0] = input_fmt;
+ *num_input_fmts = 1;
+
+ return input_fmts;
+}
+
+static int imx93_dsi_phy_init(void *priv_data)
+{
+ struct imx93_dsi *dsi = priv_data;
+ unsigned int fmt = 0;
+ int ret;
+
+ switch (dsi->format) {
+ case MIPI_DSI_FMT_RGB888:
+ fmt = RGB888_TO_RGB888;
+ break;
+ case MIPI_DSI_FMT_RGB666:
+ fmt = RGB888_TO_RGB666;
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX,
+ MIPI_DSI_RGB666_MAP_CFG, RGB666_CONFIG2);
+ break;
+ case MIPI_DSI_FMT_RGB666_PACKED:
+ fmt = RGB888_TO_RGB666;
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX,
+ MIPI_DSI_RGB666_MAP_CFG, RGB666_CONFIG1);
+ break;
+ case MIPI_DSI_FMT_RGB565:
+ fmt = RGB565_TO_RGB565;
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX,
+ MIPI_DSI_RGB565_MAP_CFG, RGB565_CONFIG1);
+ break;
+ }
+
+ regmap_update_bits(dsi->regmap, DISPLAY_MUX, LCDIF_CROSS_LINE_PATTERN, fmt);
+
+ ret = dphy_pll_init(dsi);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to init phy pll: %d\n", ret);
+ return ret;
+ }
+
+ ret = dphy_pll_configure(dsi, &dsi->phy_cfg);
+ if (ret < 0) {
+ dev_err(dsi->dev, "failed to configure phy pll: %d\n", ret);
+ dphy_pll_uninit(dsi);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void imx93_dsi_phy_power_off(void *priv_data)
+{
+ struct imx93_dsi *dsi = priv_data;
+
+ dphy_pll_power_off(dsi);
+ dphy_pll_uninit(dsi);
+}
+
+static int
+imx93_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode,
+ unsigned long mode_flags, u32 lanes, u32 format,
+ unsigned int *lane_mbps)
+{
+ struct imx93_dsi *dsi = priv_data;
+ union phy_configure_opts phy_cfg;
+ struct device *dev = dsi->dev;
+ int ret;
+
+ ret = imx93_dsi_get_phy_configure_opts(dsi, mode, &phy_cfg, lanes,
+ format);
+ if (ret < 0) {
+ dev_dbg(dev, "failed to get phy cfg opts %d\n", ret);
+ return ret;
+ }
+
+ *lane_mbps = DIV_ROUND_UP(phy_cfg.mipi_dphy.hs_clk_rate, USEC_PER_SEC);
+
+ memcpy(&dsi->phy_cfg, &phy_cfg, sizeof(phy_cfg));
+
+ dev_dbg(dev, "get lane_mbps %u for mode " DRM_MODE_FMT "\n",
+ *lane_mbps, DRM_MODE_ARG(mode));
+
+ return 0;
+}
+
+/* High-Speed Transition Times */
+struct hstt {
+ unsigned int maxfreq;
+ struct dw_mipi_dsi_dphy_timing timing;
+};
+
+#define HSTT(_maxfreq, _c_lp2hs, _c_hs2lp, _d_lp2hs, _d_hs2lp) \
+{ \
+ .maxfreq = (_maxfreq), \
+ .timing = { \
+ .clk_lp2hs = (_c_lp2hs), \
+ .clk_hs2lp = (_c_hs2lp), \
+ .data_lp2hs = (_d_lp2hs), \
+ .data_hs2lp = (_d_hs2lp), \
+ } \
+}
+
+/* DPHY Databook Table A-4 High-Speed Transition Times */
+static const struct hstt hstt_table[] = {
+ HSTT(80, 21, 17, 15, 10),
+ HSTT(90, 23, 17, 16, 10),
+ HSTT(100, 22, 17, 16, 10),
+ HSTT(110, 25, 18, 17, 11),
+ HSTT(120, 26, 20, 18, 11),
+ HSTT(130, 27, 19, 19, 11),
+ HSTT(140, 27, 19, 19, 11),
+ HSTT(150, 28, 20, 20, 12),
+ HSTT(160, 30, 21, 22, 13),
+ HSTT(170, 30, 21, 23, 13),
+ HSTT(180, 31, 21, 23, 13),
+ HSTT(190, 32, 22, 24, 13),
+ HSTT(205, 35, 22, 25, 13),
+ HSTT(220, 37, 26, 27, 15),
+ HSTT(235, 38, 28, 27, 16),
+ HSTT(250, 41, 29, 30, 17),
+ HSTT(275, 43, 29, 32, 18),
+ HSTT(300, 45, 32, 35, 19),
+ HSTT(325, 48, 33, 36, 18),
+ HSTT(350, 51, 35, 40, 20),
+ HSTT(400, 59, 37, 44, 21),
+ HSTT(450, 65, 40, 49, 23),
+ HSTT(500, 71, 41, 54, 24),
+ HSTT(550, 77, 44, 57, 26),
+ HSTT(600, 82, 46, 64, 27),
+ HSTT(650, 87, 48, 67, 28),
+ HSTT(700, 94, 52, 71, 29),
+ HSTT(750, 99, 52, 75, 31),
+ HSTT(800, 105, 55, 82, 32),
+ HSTT(850, 110, 58, 85, 32),
+ HSTT(900, 115, 58, 88, 35),
+ HSTT(950, 120, 62, 93, 36),
+ HSTT(1000, 128, 63, 99, 38),
+ HSTT(1050, 132, 65, 102, 38),
+ HSTT(1100, 138, 67, 106, 39),
+ HSTT(1150, 146, 69, 112, 42),
+ HSTT(1200, 151, 71, 117, 43),
+ HSTT(1250, 153, 74, 120, 45),
+ HSTT(1300, 160, 73, 124, 46),
+ HSTT(1350, 165, 76, 130, 47),
+ HSTT(1400, 172, 78, 134, 49),
+ HSTT(1450, 177, 80, 138, 49),
+ HSTT(1500, 183, 81, 143, 52),
+ HSTT(1550, 191, 84, 147, 52),
+ HSTT(1600, 194, 85, 152, 52),
+ HSTT(1650, 201, 86, 155, 53),
+ HSTT(1700, 208, 88, 161, 53),
+ HSTT(1750, 212, 89, 165, 53),
+ HSTT(1800, 220, 90, 171, 54),
+ HSTT(1850, 223, 92, 175, 54),
+ HSTT(1900, 231, 91, 180, 55),
+ HSTT(1950, 236, 95, 185, 56),
+ HSTT(2000, 243, 97, 190, 56),
+ HSTT(2050, 248, 99, 194, 58),
+ HSTT(2100, 252, 100, 199, 59),
+ HSTT(2150, 259, 102, 204, 61),
+ HSTT(2200, 266, 105, 210, 62),
+ HSTT(2250, 269, 109, 213, 63),
+ HSTT(2300, 272, 109, 217, 65),
+ HSTT(2350, 281, 112, 225, 66),
+ HSTT(2400, 283, 115, 226, 66),
+ HSTT(2450, 282, 115, 226, 67),
+ HSTT(2500, 281, 118, 227, 67),
+};
+
+static int imx93_dsi_phy_get_timing(void *priv_data, unsigned int lane_mbps,
+ struct dw_mipi_dsi_dphy_timing *timing)
+{
+ struct imx93_dsi *dsi = priv_data;
+ struct device *dev = dsi->dev;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hstt_table); i++)
+ if (lane_mbps <= hstt_table[i].maxfreq)
+ break;
+
+ if (i == ARRAY_SIZE(hstt_table)) {
+ dev_err(dev, "failed to get phy timing for lane_mbps %u\n",
+ lane_mbps);
+ return -EINVAL;
+ }
+
+ *timing = hstt_table[i].timing;
+
+ dev_dbg(dev, "get phy timing for %u <= %u (lane_mbps)\n",
+ lane_mbps, hstt_table[i].maxfreq);
+
+ return 0;
+}
+
+static const struct dw_mipi_dsi_phy_ops imx93_dsi_phy_ops = {
+ .init = imx93_dsi_phy_init,
+ .power_off = imx93_dsi_phy_power_off,
+ .get_lane_mbps = imx93_dsi_get_lane_mbps,
+ .get_timing = imx93_dsi_phy_get_timing,
+};
+
+static int imx93_dsi_host_attach(void *priv_data, struct mipi_dsi_device *device)
+{
+ struct imx93_dsi *dsi = priv_data;
+
+ dsi->format = device->format;
+
+ return 0;
+}
+
+static const struct dw_mipi_dsi_host_ops imx93_dsi_host_ops = {
+ .attach = imx93_dsi_host_attach,
+};
+
+static int imx93_dsi_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct imx93_dsi *dsi;
+ int ret;
+
+ dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
+ if (!dsi)
+ return -ENOMEM;
+
+ dsi->regmap = syscon_regmap_lookup_by_phandle(np, "fsl,media-blk-ctrl");
+ if (IS_ERR(dsi->regmap)) {
+ ret = PTR_ERR(dsi->regmap);
+ dev_err(dev, "failed to get block ctrl regmap: %d\n", ret);
+ return ret;
+ }
+
+ dsi->clk_pixel = devm_clk_get(dev, "pix");
+ if (IS_ERR(dsi->clk_pixel))
+ return dev_err_probe(dev, PTR_ERR(dsi->clk_pixel),
+ "failed to get pixel clock\n");
+
+ dsi->clk_cfg = devm_clk_get(dev, "phy_cfg");
+ if (IS_ERR(dsi->clk_cfg))
+ return dev_err_probe(dev, PTR_ERR(dsi->clk_cfg),
+ "failed to get phy cfg clock\n");
+
+ dsi->clk_ref = devm_clk_get(dev, "phy_ref");
+ if (IS_ERR(dsi->clk_ref))
+ return dev_err_probe(dev, PTR_ERR(dsi->clk_ref),
+ "failed to get phy ref clock\n");
+
+ dsi->ref_clk_rate = clk_get_rate(dsi->clk_ref);
+ if (dsi->ref_clk_rate < REF_CLK_RATE_MIN ||
+ dsi->ref_clk_rate > REF_CLK_RATE_MAX) {
+ dev_err(dev, "invalid phy ref clock rate %lu\n",
+ dsi->ref_clk_rate);
+ return -EINVAL;
+ }
+ dev_dbg(dev, "phy ref clock rate: %lu\n", dsi->ref_clk_rate);
+
+ dsi->dev = dev;
+ dsi->pdata.max_data_lanes = 4;
+ dsi->pdata.mode_valid = imx93_dsi_mode_valid;
+ dsi->pdata.mode_fixup = imx93_dsi_mode_fixup;
+ dsi->pdata.get_input_bus_fmts = imx93_dsi_get_input_bus_fmts;
+ dsi->pdata.phy_ops = &imx93_dsi_phy_ops;
+ dsi->pdata.host_ops = &imx93_dsi_host_ops;
+ dsi->pdata.priv_data = dsi;
+ platform_set_drvdata(pdev, dsi);
+
+ dsi->dmd = dw_mipi_dsi_probe(pdev, &dsi->pdata);
+ if (IS_ERR(dsi->dmd))
+ return dev_err_probe(dev, PTR_ERR(dsi->dmd),
+ "failed to probe dw_mipi_dsi\n");
+
+ return 0;
+}
+
+static void imx93_dsi_remove(struct platform_device *pdev)
+{
+ struct imx93_dsi *dsi = platform_get_drvdata(pdev);
+
+ dw_mipi_dsi_remove(dsi->dmd);
+}
+
+static const struct of_device_id imx93_dsi_dt_ids[] = {
+ { .compatible = "fsl,imx93-mipi-dsi", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx93_dsi_dt_ids);
+
+static struct platform_driver imx93_dsi_driver = {
+ .probe = imx93_dsi_probe,
+ .remove_new = imx93_dsi_remove,
+ .driver = {
+ .of_match_table = imx93_dsi_dt_ids,
+ .name = "imx93_mipi_dsi",
+ },
+};
+module_platform_driver(imx93_dsi_driver);
+
+MODULE_DESCRIPTION("Freescale i.MX93 MIPI DSI driver");
+MODULE_AUTHOR("Liu Ying <victor.liu@nxp.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
index 7835738a532e..e971b75e90ad 100644
--- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
+++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c
@@ -929,9 +929,9 @@ retry:
init_waitqueue_head(&lt9611uxc->wq);
INIT_WORK(&lt9611uxc->work, lt9611uxc_hpd_work);
- ret = devm_request_threaded_irq(dev, client->irq, NULL,
- lt9611uxc_irq_thread_handler,
- IRQF_ONESHOT, "lt9611uxc", lt9611uxc);
+ ret = request_threaded_irq(client->irq, NULL,
+ lt9611uxc_irq_thread_handler,
+ IRQF_ONESHOT, "lt9611uxc", lt9611uxc);
if (ret) {
dev_err(dev, "failed to request irq\n");
goto err_disable_regulators;
@@ -967,6 +967,8 @@ retry:
return lt9611uxc_audio_init(dev, lt9611uxc);
err_remove_bridge:
+ free_irq(client->irq, lt9611uxc);
+ cancel_work_sync(&lt9611uxc->work);
drm_bridge_remove(&lt9611uxc->bridge);
err_disable_regulators:
@@ -983,7 +985,7 @@ static void lt9611uxc_remove(struct i2c_client *client)
{
struct lt9611uxc *lt9611uxc = i2c_get_clientdata(client);
- disable_irq(client->irq);
+ free_irq(client->irq, lt9611uxc);
cancel_work_sync(&lt9611uxc->work);
lt9611uxc_audio_exit(lt9611uxc);
drm_bridge_remove(&lt9611uxc->bridge);
diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index 460db3c8a08c..e93083bbec9d 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -65,12 +65,11 @@ struct ge_b850v3_lvds {
static struct ge_b850v3_lvds *ge_b850v3_lvds_ptr;
-static u8 *stdp2690_get_edid(struct i2c_client *client)
+static int stdp2690_read_block(void *context, u8 *buf, unsigned int block, size_t len)
{
+ struct i2c_client *client = context;
struct i2c_adapter *adapter = client->adapter;
- unsigned char start = 0x00;
- unsigned int total_size;
- u8 *block = kmalloc(EDID_LENGTH, GFP_KERNEL);
+ unsigned char start = block * EDID_LENGTH;
struct i2c_msg msgs[] = {
{
@@ -81,53 +80,15 @@ static u8 *stdp2690_get_edid(struct i2c_client *client)
}, {
.addr = client->addr,
.flags = I2C_M_RD,
- .len = EDID_LENGTH,
- .buf = block,
+ .len = len,
+ .buf = buf,
}
};
- if (!block)
- return NULL;
+ if (i2c_transfer(adapter, msgs, 2) != 2)
+ return -1;
- if (i2c_transfer(adapter, msgs, 2) != 2) {
- DRM_ERROR("Unable to read EDID.\n");
- goto err;
- }
-
- if (!drm_edid_block_valid(block, 0, false, NULL)) {
- DRM_ERROR("Invalid EDID data\n");
- goto err;
- }
-
- total_size = (block[EDID_EXT_BLOCK_CNT] + 1) * EDID_LENGTH;
- if (total_size > EDID_LENGTH) {
- kfree(block);
- block = kmalloc(total_size, GFP_KERNEL);
- if (!block)
- return NULL;
-
- /* Yes, read the entire buffer, and do not skip the first
- * EDID_LENGTH bytes.
- */
- start = 0x00;
- msgs[1].len = total_size;
- msgs[1].buf = block;
-
- if (i2c_transfer(adapter, msgs, 2) != 2) {
- DRM_ERROR("Unable to read EDID extension blocks.\n");
- goto err;
- }
- if (!drm_edid_block_valid(block, 1, false, NULL)) {
- DRM_ERROR("Invalid EDID data\n");
- goto err;
- }
- }
-
- return block;
-
-err:
- kfree(block);
- return NULL;
+ return 0;
}
static struct edid *ge_b850v3_lvds_get_edid(struct drm_bridge *bridge,
@@ -137,7 +98,7 @@ static struct edid *ge_b850v3_lvds_get_edid(struct drm_bridge *bridge,
client = ge_b850v3_lvds_ptr->stdp2690_i2c;
- return (struct edid *)stdp2690_get_edid(client);
+ return drm_do_get_edid(connector, stdp2690_read_block, client);
}
static int ge_b850v3_lvds_get_modes(struct drm_connector *connector)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
index a8dd2a2e7c7b..824fb3c65742 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -12,6 +12,8 @@
#include <linux/component.h>
#include <linux/debugfs.h>
#include <linux/iopoll.h>
+#include <linux/math64.h>
+#include <linux/media-bus-format.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
@@ -22,6 +24,7 @@
#include <drm/bridge/dw_mipi_dsi.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
+#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_modes.h>
@@ -538,6 +541,59 @@ static const struct mipi_dsi_host_ops dw_mipi_dsi_host_ops = {
.transfer = dw_mipi_dsi_host_transfer,
};
+static u32 *
+dw_mipi_dsi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state,
+ u32 output_fmt,
+ unsigned int *num_input_fmts)
+{
+ struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+ const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+ u32 *input_fmts;
+
+ if (pdata->get_input_bus_fmts)
+ return pdata->get_input_bus_fmts(pdata->priv_data,
+ bridge, bridge_state,
+ crtc_state, conn_state,
+ output_fmt, num_input_fmts);
+
+ /* Fall back to MEDIA_BUS_FMT_FIXED as the only input format. */
+ input_fmts = kmalloc(sizeof(*input_fmts), GFP_KERNEL);
+ if (!input_fmts)
+ return NULL;
+ input_fmts[0] = MEDIA_BUS_FMT_FIXED;
+ *num_input_fmts = 1;
+
+ return input_fmts;
+}
+
+static int dw_mipi_dsi_bridge_atomic_check(struct drm_bridge *bridge,
+ struct drm_bridge_state *bridge_state,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+ const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+ bool ret;
+
+ bridge_state->input_bus_cfg.flags =
+ DRM_BUS_FLAG_DE_HIGH | DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE;
+
+ if (pdata->mode_fixup) {
+ ret = pdata->mode_fixup(pdata->priv_data, &crtc_state->mode,
+ &crtc_state->adjusted_mode);
+ if (!ret) {
+ DRM_DEBUG_DRIVER("failed to fixup mode " DRM_MODE_FMT "\n",
+ DRM_MODE_ARG(&crtc_state->mode));
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
{
u32 val;
@@ -630,7 +686,7 @@ static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
* timeout clock division should be computed with the
* high speed transmission counter timeout and byte lane...
*/
- dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVISION(10) |
+ dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVISION(0) |
TX_ESC_CLK_DIVISION(esc_clk_division));
}
@@ -693,7 +749,7 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
* compute high speed transmission counter timeout according
* to the timeout clock division (TO_CLK_DIVISION) and byte lane...
*/
- dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000));
+ dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(0) | LPRX_TO_CNT(0));
/*
* TODO dw drv improvements
* the Bus-Turn-Around Timeout Counter should be computed
@@ -703,20 +759,45 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
}
+static const u32 minimum_lbccs[] = {10, 5, 4, 3};
+
+static inline u32 dw_mipi_dsi_get_minimum_lbcc(struct dw_mipi_dsi *dsi)
+{
+ return minimum_lbccs[dsi->lanes - 1];
+}
+
/* Get lane byte clock cycles. */
static u32 dw_mipi_dsi_get_hcomponent_lbcc(struct dw_mipi_dsi *dsi,
const struct drm_display_mode *mode,
u32 hcomponent)
{
- u32 frac, lbcc;
+ u32 frac, lbcc, minimum_lbcc;
+ int bpp;
- lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
+ if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST) {
+ /* lbcc based on lane_mbps */
+ lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
+ } else {
+ /* lbcc based on pixel clock rate */
+ bpp = mipi_dsi_pixel_format_to_bpp(dsi->format);
+ if (bpp < 0) {
+ dev_err(dsi->dev, "failed to get bpp\n");
+ return 0;
+ }
+
+ lbcc = div_u64((u64)hcomponent * mode->clock * bpp, dsi->lanes * 8);
+ }
frac = lbcc % mode->clock;
lbcc = lbcc / mode->clock;
if (frac)
lbcc++;
+ minimum_lbcc = dw_mipi_dsi_get_minimum_lbcc(dsi);
+
+ if (lbcc < minimum_lbcc)
+ lbcc = minimum_lbcc;
+
return lbcc;
}
@@ -1006,6 +1087,8 @@ static int dw_mipi_dsi_bridge_attach(struct drm_bridge *bridge,
static const struct drm_bridge_funcs dw_mipi_dsi_bridge_funcs = {
.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+ .atomic_get_input_bus_fmts = dw_mipi_dsi_bridge_atomic_get_input_bus_fmts,
+ .atomic_check = dw_mipi_dsi_bridge_atomic_check,
.atomic_reset = drm_atomic_helper_bridge_reset,
.atomic_pre_enable = dw_mipi_dsi_bridge_atomic_pre_enable,
.atomic_enable = dw_mipi_dsi_bridge_atomic_enable,
@@ -1209,6 +1292,12 @@ void dw_mipi_dsi_set_slave(struct dw_mipi_dsi *dsi, struct dw_mipi_dsi *slave)
}
EXPORT_SYMBOL_GPL(dw_mipi_dsi_set_slave);
+struct drm_bridge *dw_mipi_dsi_get_bridge(struct dw_mipi_dsi *dsi)
+{
+ return &dsi->bridge;
+}
+EXPORT_SYMBOL_GPL(dw_mipi_dsi_get_bridge);
+
/*
* Probe/remove API, used from platforms based on the DRM bridge API.
*/