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Message-ID: <20190730131736.30187-3-bogdan.togorean@analog.com>
Date: Tue, 30 Jul 2019 16:17:36 +0300
From: Bogdan Togorean <bogdan.togorean@...log.com>
To: <dri-devel@...ts.freedesktop.org>
CC: <airlied@...ux.ie>, <daniel@...ll.ch>, <robh+dt@...nel.org>,
<a.hajda@...sung.com>, <Laurent.pinchart@...asonboard.com>,
<sam@...nborg.org>, <gregkh@...uxfoundation.org>,
<allison@...utok.net>, <tglx@...utronix.de>,
<matt.redfearn@...nci.com>, <linux-kernel@...r.kernel.org>,
Bogdan Togorean <bogdan.togorean@...log.com>
Subject: [PATCH 2/2] drm: bridge: adv7511: Add support for ADV7535
ADV7535 is a DSI to HDMI bridge chip like ADV7533 but it allows
1080p@...z. v1p2 is fixed to 1.8V on ADV7535 but on ADV7533 can be 1.2V
or 1.8V and is configurable in a register.
Signed-off-by: Bogdan Togorean <bogdan.togorean@...log.com>
---
drivers/gpu/drm/bridge/adv7511/adv7511.h | 2 ++
drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 31 +++++++++++++++-----
2 files changed, 25 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h
index 52b2adfdc877..702432615ec8 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511.h
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h
@@ -91,6 +91,7 @@
#define ADV7511_REG_ARC_CTRL 0xdf
#define ADV7511_REG_CEC_I2C_ADDR 0xe1
#define ADV7511_REG_CEC_CTRL 0xe2
+#define ADV7511_REG_SUPPLY_SELECT 0xe4
#define ADV7511_REG_CHIP_ID_HIGH 0xf5
#define ADV7511_REG_CHIP_ID_LOW 0xf6
@@ -320,6 +321,7 @@ struct adv7511_video_config {
enum adv7511_type {
ADV7511,
ADV7533,
+ ADV7535,
};
#define ADV7511_MAX_ADDRS 3
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index f6d2681f6927..941072decb73 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -367,7 +367,7 @@ static void adv7511_power_on(struct adv7511 *adv7511)
*/
regcache_sync(adv7511->regmap);
- if (adv7511->type == ADV7533)
+ if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
adv7533_dsi_power_on(adv7511);
adv7511->powered = true;
}
@@ -387,7 +387,7 @@ static void __adv7511_power_off(struct adv7511 *adv7511)
static void adv7511_power_off(struct adv7511 *adv7511)
{
__adv7511_power_off(adv7511);
- if (adv7511->type == ADV7533)
+ if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
adv7533_dsi_power_off(adv7511);
adv7511->powered = false;
}
@@ -761,7 +761,7 @@ static void adv7511_mode_set(struct adv7511 *adv7511,
regmap_update_bits(adv7511->regmap, 0x17,
0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
- if (adv7511->type == ADV7533)
+ if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
adv7533_mode_set(adv7511, adj_mode);
drm_mode_copy(&adv7511->curr_mode, adj_mode);
@@ -874,7 +874,7 @@ static int adv7511_bridge_attach(struct drm_bridge *bridge)
&adv7511_connector_helper_funcs);
drm_connector_attach_encoder(&adv->connector, bridge->encoder);
- if (adv->type == ADV7533)
+ if (adv->type == ADV7533 || adv->type == ADV7535)
ret = adv7533_attach_dsi(adv);
if (adv->i2c_main->irq)
@@ -952,7 +952,7 @@ 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);
- if (adv7511->type == ADV7533)
+ if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
reg -= ADV7533_REG_CEC_OFFSET;
switch (reg) {
@@ -994,7 +994,7 @@ static int adv7511_init_cec_regmap(struct adv7511 *adv)
goto err;
}
- if (adv->type == ADV7533) {
+ if (adv->type == ADV7533 || adv->type == ADV7535) {
ret = adv7533_patch_cec_registers(adv);
if (ret)
goto err;
@@ -1094,8 +1094,9 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
struct adv7511_link_config link_config;
struct adv7511 *adv7511;
struct device *dev = &i2c->dev;
+ struct regulator *reg_v1p2;
unsigned int val;
- int ret;
+ int ret, reg_v1p2_uV;
if (!dev->of_node)
return -EINVAL;
@@ -1163,6 +1164,18 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
if (ret)
goto uninit_regulators;
+ if (adv7511->type == ADV7533) {
+ ret = match_string(adv7533_supply_names, adv7511->num_supplies,
+ "v1p2");
+ reg_v1p2 = adv7511->supplies[ret].consumer;
+ reg_v1p2_uV = regulator_get_voltage(reg_v1p2);
+
+ if (reg_v1p2_uV == 1200000) {
+ regmap_update_bits(adv7511->regmap,
+ ADV7511_REG_SUPPLY_SELECT, 0x80, 0x80);
+ }
+ }
+
adv7511_packet_disable(adv7511, 0xffff);
adv7511->i2c_edid = i2c_new_secondary_device(i2c, "edid",
@@ -1242,7 +1255,7 @@ static int adv7511_remove(struct i2c_client *i2c)
{
struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
- if (adv7511->type == ADV7533)
+ if (adv7511->type == ADV7533 || adv7511->type == ADV7535)
adv7533_detach_dsi(adv7511);
i2c_unregister_device(adv7511->i2c_cec);
if (adv7511->cec_clk)
@@ -1268,6 +1281,7 @@ static const struct i2c_device_id adv7511_i2c_ids[] = {
{ "adv7513", ADV7511 },
#ifdef CONFIG_DRM_I2C_ADV7533
{ "adv7533", ADV7533 },
+ { "adv7535", ADV7535 },
#endif
{ }
};
@@ -1279,6 +1293,7 @@ static const struct of_device_id adv7511_of_ids[] = {
{ .compatible = "adi,adv7513", .data = (void *)ADV7511 },
#ifdef CONFIG_DRM_I2C_ADV7533
{ .compatible = "adi,adv7533", .data = (void *)ADV7533 },
+ { .compatible = "adi,adv7535", .data = (void *)ADV7535 },
#endif
{ }
};
--
2.22.0
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