Commit d0f6d401 authored by Dave Airlie's avatar Dave Airlie

Merge tag 'drm-misc-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

More 4.15 drm-misc stuff:

Cross-subsystem Changes:
- bridge cleanup refactor (Benjamin Gaignard)

Core Changes:
- less surprising atomic iterators (Maarten), fixes an oops introduced
  in drm-next
- better gem/fb helper docs (Noralf)
- fix dma-buf rcu races (Christian König)

Driver Changes:
- adv7511: CEC support (Hans Verkuil)
- sun4i update from Chen-Yu to improve hdmi and A31 support
- sii8620: add remote control support (Maceiej Purski)

New drivers:
- SiI9234 bridge driver (Maciej Purski)
- 7" rpi touch panel (Eric Anholt)

Note that this contains a topic pull from regmap, needed by the sun4i
changes. Mark Brown sent that out for pulling into drm-misc.

* tag 'drm-misc-next-2017-10-12' of git://anongit.freedesktop.org/drm/drm-misc: (29 commits)
  drm/dp: WARN about invalid/unknown link rates and bw codes
  drm/msm/mdp5: remove less than 0 comparison for unsigned value
  drm/bridge/sii8620: add remote control support
  drm/sun4i: hdmi: Add support for A31's HDMI controller
  drm/sun4i: hdmi: Add A31 specific DDC register definitions
  drm/sun4i: hdmi: Add support for controller hardware variants
  dt-bindings: display: sun4i: Add binding for A31 HDMI controller
  drm/sun4i: hdmi: Allow using second PLL as TMDS clk parent
  drm/sun4i: hdmi: create a regmap for later use
  drm/sun4i: hdmi: Disable clks in bind function error path and unbind function
  drm/sun4i: tcon: Add support for demuxing TCON output on A31
  drm/sun4i: tcon: Add variant callback for TCON output muxing
  drm/bridge/synopsys: dsi :remove is_panel_bridge
  drm/vc4: remove bridge from driver internal structure
  drm/stm: ltdc: remove bridge from driver internal structure
  drm/drm_of: add drm_of_panel_bridge_remove function
  drm/bridge: make drm_panel_bridge_remove more robust
  dma-fence: fix dma_fence_get_rcu_safe v2
  dma-buf: make reservation_object_copy_fences rcu save
  drm/atomic: Unref duplicated drm_atomic_state in drm_atomic_helper_resume()
  ...
parents 25e1a798 cccf4e3f
......@@ -68,6 +68,8 @@ Optional properties:
- adi,disable-timing-generator: Only for ADV7533. Disables the internal timing
generator. The chip will rely on the sync signals in the DSI data lanes,
rather than generate its own timings for HDMI output.
- clocks: from common clock binding: reference to the CEC clock.
- clock-names: from common clock binding: must be "cec".
Required nodes:
......@@ -89,6 +91,8 @@ Example
reg = <39>;
interrupt-parent = <&gpio3>;
interrupts = <29 IRQ_TYPE_EDGE_FALLING>;
clocks = <&cec_clock>;
clock-names = "cec";
adi,input-depth = <8>;
adi,input-colorspace = "rgb";
......
Silicon Image SiI9234 HDMI/MHL bridge bindings
Required properties:
- compatible : "sil,sii9234".
- reg : I2C address for TPI interface, use 0x39
- avcc33-supply : MHL/USB Switch Supply Voltage (3.3V)
- iovcc18-supply : I/O Supply Voltage (1.8V)
- avcc12-supply : TMDS Analog Supply Voltage (1.2V)
- cvcc12-supply : Digital Core Supply Voltage (1.2V)
- interrupts, interrupt-parent: interrupt specifier of INT pin
- reset-gpios: gpio specifier of RESET pin (active low)
- video interfaces: Device node can contain two video interface port
nodes for HDMI encoder and connector according to [1].
- port@0 - MHL to HDMI
- port@1 - MHL to connector
[1]: Documentation/devicetree/bindings/media/video-interfaces.txt
Example:
sii9234@39 {
compatible = "sil,sii9234";
reg = <0x39>;
avcc33-supply = <&vcc33mhl>;
iovcc18-supply = <&vcc18mhl>;
avcc12-supply = <&vsil12>;
cvcc12-supply = <&vsil12>;
reset-gpios = <&gpf3 4 GPIO_ACTIVE_LOW>;
interrupt-parent = <&gpf3>;
interrupts = <5 IRQ_TYPE_LEVEL_HIGH>;
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
mhl_to_hdmi: endpoint {
remote-endpoint = <&hdmi_to_mhl>;
};
};
port@1 {
reg = <1>;
mhl_to_connector: endpoint {
remote-endpoint = <&connector_to_mhl>;
};
};
};
};
This binding covers the official 7" (800x480) Raspberry Pi touchscreen
panel.
This DSI panel contains:
- TC358762 DSI->DPI bridge
- Atmel microcontroller on I2C for power sequencing the DSI bridge and
controlling backlight
- Touchscreen controller on I2C for touch input
and this binding covers the DSI display parts but not its touch input.
Required properties:
- compatible: Must be "raspberrypi,7inch-touchscreen-panel"
- reg: Must be "45"
- port: See panel-common.txt
Example:
dsi1: dsi@7e700000 {
#address-cells = <1>;
#size-cells = <0>;
<...>
port {
dsi_out_port: endpoint {
remote-endpoint = <&panel_dsi_port>;
};
};
};
i2c_dsi: i2c {
compatible = "i2c-gpio";
#address-cells = <1>;
#size-cells = <0>;
gpios = <&gpio 28 0
&gpio 29 0>;
lcd@45 {
compatible = "raspberrypi,7inch-touchscreen-panel";
reg = <0x45>;
port {
panel_dsi_port: endpoint {
remote-endpoint = <&dsi_out_port>;
};
};
};
};
......@@ -41,14 +41,17 @@ CEC. It is one end of the pipeline.
Required properties:
- compatible: value must be one of:
* allwinner,sun5i-a10s-hdmi
* allwinner,sun6i-a31-hdmi
- reg: base address and size of memory-mapped region
- interrupts: interrupt associated to this IP
- clocks: phandles to the clocks feeding the HDMI encoder
* ahb: the HDMI interface clock
* mod: the HDMI module clock
* ddc: the HDMI ddc clock (A31 only)
* pll-0: the first video PLL
* pll-1: the second video PLL
- clock-names: the clock names mentioned above
- resets: phandle to the reset control for the HDMI encoder (A31 only)
- dmas: phandles to the DMA channels used by the HDMI encoder
* ddc-tx: The channel for DDC transmission
* ddc-rx: The channel for DDC reception
......
......@@ -266,8 +266,7 @@ EXPORT_SYMBOL(reservation_object_add_excl_fence);
* @dst: the destination reservation object
* @src: the source reservation object
*
* Copy all fences from src to dst. Both src->lock as well as dst-lock must be
* held.
* Copy all fences from src to dst. dst-lock must be held.
*/
int reservation_object_copy_fences(struct reservation_object *dst,
struct reservation_object *src)
......@@ -277,33 +276,62 @@ int reservation_object_copy_fences(struct reservation_object *dst,
size_t size;
unsigned i;
src_list = reservation_object_get_list(src);
rcu_read_lock();
src_list = rcu_dereference(src->fence);
retry:
if (src_list) {
size = offsetof(typeof(*src_list),
shared[src_list->shared_count]);
unsigned shared_count = src_list->shared_count;
size = offsetof(typeof(*src_list), shared[shared_count]);
rcu_read_unlock();
dst_list = kmalloc(size, GFP_KERNEL);
if (!dst_list)
return -ENOMEM;
dst_list->shared_count = src_list->shared_count;
dst_list->shared_max = src_list->shared_count;
for (i = 0; i < src_list->shared_count; ++i)
dst_list->shared[i] =
dma_fence_get(src_list->shared[i]);
rcu_read_lock();
src_list = rcu_dereference(src->fence);
if (!src_list || src_list->shared_count > shared_count) {
kfree(dst_list);
goto retry;
}
dst_list->shared_count = 0;
dst_list->shared_max = shared_count;
for (i = 0; i < src_list->shared_count; ++i) {
struct dma_fence *fence;
fence = rcu_dereference(src_list->shared[i]);
if (test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
&fence->flags))
continue;
if (!dma_fence_get_rcu(fence)) {
kfree(dst_list);
src_list = rcu_dereference(src->fence);
goto retry;
}
if (dma_fence_is_signaled(fence)) {
dma_fence_put(fence);
continue;
}
dst_list->shared[dst_list->shared_count++] = fence;
}
} else {
dst_list = NULL;
}
new = dma_fence_get_rcu_safe(&src->fence_excl);
rcu_read_unlock();
kfree(dst->staged);
dst->staged = NULL;
src_list = reservation_object_get_list(dst);
old = reservation_object_get_excl(dst);
new = reservation_object_get_excl(src);
dma_fence_get(new);
preempt_disable();
write_seqcount_begin(&dst->seq);
......
......@@ -71,7 +71,7 @@ config DRM_PARADE_PS8622
config DRM_SIL_SII8620
tristate "Silicon Image SII8620 HDMI/MHL bridge"
depends on OF
depends on OF && RC_CORE
select DRM_KMS_HELPER
help
Silicon Image SII8620 HDMI/MHL bridge chip driver.
......@@ -84,6 +84,14 @@ config DRM_SII902X
---help---
Silicon Image sii902x bridge chip driver.
config DRM_SII9234
tristate "Silicon Image SII9234 HDMI/MHL bridge"
depends on OF
---help---
Say Y here if you want support for the MHL interface.
It is an I2C driver, that detects connection of MHL bridge
and starts encapsulation of HDMI signal.
config DRM_TOSHIBA_TC358767
tristate "Toshiba TC358767 eDP bridge"
depends on OF
......
......@@ -6,6 +6,7 @@ obj-$(CONFIG_DRM_NXP_PTN3460) += nxp-ptn3460.o
obj-$(CONFIG_DRM_PARADE_PS8622) += parade-ps8622.o
obj-$(CONFIG_DRM_SIL_SII8620) += sil-sii8620.o
obj-$(CONFIG_DRM_SII902X) += sii902x.o
obj-$(CONFIG_DRM_SII9234) += sii9234.o
obj-$(CONFIG_DRM_TOSHIBA_TC358767) += tc358767.o
obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix/
obj-$(CONFIG_DRM_I2C_ADV7511) += adv7511/
......
......@@ -21,3 +21,11 @@ config DRM_I2C_ADV7533
default y
help
Support for the Analog Devices ADV7533 DSI to HDMI encoder.
config DRM_I2C_ADV7511_CEC
bool "ADV7511/33 HDMI CEC driver"
depends on DRM_I2C_ADV7511
select CEC_CORE
default y
help
When selected the HDMI transmitter will support the CEC feature.
adv7511-y := adv7511_drv.o
adv7511-$(CONFIG_DRM_I2C_ADV7511_AUDIO) += adv7511_audio.o
adv7511-$(CONFIG_DRM_I2C_ADV7511_CEC) += adv7511_cec.o
adv7511-$(CONFIG_DRM_I2C_ADV7533) += adv7533.o
obj-$(CONFIG_DRM_I2C_ADV7511) += adv7511.o
......@@ -195,6 +195,25 @@
#define ADV7511_PACKET_GM(x) ADV7511_PACKET(5, x)
#define ADV7511_PACKET_SPARE(x) ADV7511_PACKET(6, x)
#define ADV7511_REG_CEC_TX_FRAME_HDR 0x00
#define ADV7511_REG_CEC_TX_FRAME_DATA0 0x01
#define ADV7511_REG_CEC_TX_FRAME_LEN 0x10
#define ADV7511_REG_CEC_TX_ENABLE 0x11
#define ADV7511_REG_CEC_TX_RETRY 0x12
#define ADV7511_REG_CEC_TX_LOW_DRV_CNT 0x14
#define ADV7511_REG_CEC_RX_FRAME_HDR 0x15
#define ADV7511_REG_CEC_RX_FRAME_DATA0 0x16
#define ADV7511_REG_CEC_RX_FRAME_LEN 0x25
#define ADV7511_REG_CEC_RX_ENABLE 0x26
#define ADV7511_REG_CEC_RX_BUFFERS 0x4a
#define ADV7511_REG_CEC_LOG_ADDR_MASK 0x4b
#define ADV7511_REG_CEC_LOG_ADDR_0_1 0x4c
#define ADV7511_REG_CEC_LOG_ADDR_2 0x4d
#define ADV7511_REG_CEC_CLK_DIV 0x4e
#define ADV7511_REG_CEC_SOFT_RESET 0x50
#define ADV7533_REG_CEC_OFFSET 0x70
enum adv7511_input_clock {
ADV7511_INPUT_CLOCK_1X,
ADV7511_INPUT_CLOCK_2X,
......@@ -297,6 +316,8 @@ enum adv7511_type {
ADV7533,
};
#define ADV7511_MAX_ADDRS 3
struct adv7511 {
struct i2c_client *i2c_main;
struct i2c_client *i2c_edid;
......@@ -341,15 +362,27 @@ struct adv7511 {
enum adv7511_type type;
struct platform_device *audio_pdev;
struct cec_adapter *cec_adap;
u8 cec_addr[ADV7511_MAX_ADDRS];
u8 cec_valid_addrs;
bool cec_enabled_adap;
struct clk *cec_clk;
u32 cec_clk_freq;
};
#ifdef CONFIG_DRM_I2C_ADV7511_CEC
int adv7511_cec_init(struct device *dev, struct adv7511 *adv7511,
unsigned int offset);
void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1);
#endif
#ifdef CONFIG_DRM_I2C_ADV7533
void adv7533_dsi_power_on(struct adv7511 *adv);
void adv7533_dsi_power_off(struct adv7511 *adv);
void adv7533_mode_set(struct adv7511 *adv, struct drm_display_mode *mode);
int adv7533_patch_registers(struct adv7511 *adv);
void adv7533_uninit_cec(struct adv7511 *adv);
int adv7533_init_cec(struct adv7511 *adv);
int adv7533_patch_cec_registers(struct adv7511 *adv);
int adv7533_attach_dsi(struct adv7511 *adv);
void adv7533_detach_dsi(struct adv7511 *adv);
int adv7533_parse_dt(struct device_node *np, struct adv7511 *adv);
......@@ -372,11 +405,7 @@ static inline int adv7533_patch_registers(struct adv7511 *adv)
return -ENODEV;
}
static inline void adv7533_uninit_cec(struct adv7511 *adv)
{
}
static inline int adv7533_init_cec(struct adv7511 *adv)
static inline int adv7533_patch_cec_registers(struct adv7511 *adv)
{
return -ENODEV;
}
......
/*
* adv7511_cec.c - Analog Devices ADV7511/33 cec driver
*
* Copyright 2017 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*
* This program is free software; you may redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
#include <linux/device.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <media/cec.h>
#include "adv7511.h"
#define ADV7511_INT1_CEC_MASK \
(ADV7511_INT1_CEC_TX_READY | ADV7511_INT1_CEC_TX_ARBIT_LOST | \
ADV7511_INT1_CEC_TX_RETRY_TIMEOUT | ADV7511_INT1_CEC_RX_READY1)
static void adv_cec_tx_raw_status(struct adv7511 *adv7511, u8 tx_raw_status)
{
unsigned int offset = adv7511->type == ADV7533 ?
ADV7533_REG_CEC_OFFSET : 0;
unsigned int val;
if (regmap_read(adv7511->regmap_cec,
ADV7511_REG_CEC_TX_ENABLE + offset, &val))
return;
if ((val & 0x01) == 0)
return;
if (tx_raw_status & ADV7511_INT1_CEC_TX_ARBIT_LOST) {
cec_transmit_attempt_done(adv7511->cec_adap,
CEC_TX_STATUS_ARB_LOST);
return;
}
if (tx_raw_status & ADV7511_INT1_CEC_TX_RETRY_TIMEOUT) {
u8 status;
u8 err_cnt = 0;
u8 nack_cnt = 0;
u8 low_drive_cnt = 0;
unsigned int cnt;
/*
* We set this status bit since this hardware performs
* retransmissions.
*/
status = CEC_TX_STATUS_MAX_RETRIES;
if (regmap_read(adv7511->regmap_cec,
ADV7511_REG_CEC_TX_LOW_DRV_CNT + offset, &cnt)) {
err_cnt = 1;
status |= CEC_TX_STATUS_ERROR;
} else {
nack_cnt = cnt & 0xf;
if (nack_cnt)
status |= CEC_TX_STATUS_NACK;
low_drive_cnt = cnt >> 4;
if (low_drive_cnt)
status |= CEC_TX_STATUS_LOW_DRIVE;
}
cec_transmit_done(adv7511->cec_adap, status,
0, nack_cnt, low_drive_cnt, err_cnt);
return;
}
if (tx_raw_status & ADV7511_INT1_CEC_TX_READY) {
cec_transmit_attempt_done(adv7511->cec_adap, CEC_TX_STATUS_OK);
return;
}
}
void adv7511_cec_irq_process(struct adv7511 *adv7511, unsigned int irq1)
{
unsigned int offset = adv7511->type == ADV7533 ?
ADV7533_REG_CEC_OFFSET : 0;
const u32 irq_tx_mask = ADV7511_INT1_CEC_TX_READY |
ADV7511_INT1_CEC_TX_ARBIT_LOST |
ADV7511_INT1_CEC_TX_RETRY_TIMEOUT;
struct cec_msg msg = {};
unsigned int len;
unsigned int val;
u8 i;
if (irq1 & irq_tx_mask)
adv_cec_tx_raw_status(adv7511, irq1);
if (!(irq1 & ADV7511_INT1_CEC_RX_READY1))
return;
if (regmap_read(adv7511->regmap_cec,
ADV7511_REG_CEC_RX_FRAME_LEN + offset, &len))
return;
msg.len = len & 0x1f;
if (msg.len > 16)
msg.len = 16;
if (!msg.len)
return;
for (i = 0; i < msg.len; i++) {
regmap_read(adv7511->regmap_cec,
i + ADV7511_REG_CEC_RX_FRAME_HDR + offset, &val);
msg.msg[i] = val;
}
/* toggle to re-enable rx 1 */
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_RX_BUFFERS + offset, 1);
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_RX_BUFFERS + offset, 0);
cec_received_msg(adv7511->cec_adap, &msg);
}
static int adv7511_cec_adap_enable(struct cec_adapter *adap, bool enable)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
unsigned int offset = adv7511->type == ADV7533 ?
ADV7533_REG_CEC_OFFSET : 0;
if (adv7511->i2c_cec == NULL)
return -EIO;
if (!adv7511->cec_enabled_adap && enable) {
/* power up cec section */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_CLK_DIV + offset,
0x03, 0x01);
/* legacy mode and clear all rx buffers */
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_RX_BUFFERS + offset, 0x07);
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_RX_BUFFERS + offset, 0);
/* initially disable tx */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_TX_ENABLE + offset, 1, 0);
/* enabled irqs: */
/* tx: ready */
/* tx: arbitration lost */
/* tx: retry timeout */
/* rx: ready 1 */
regmap_update_bits(adv7511->regmap,
ADV7511_REG_INT_ENABLE(1), 0x3f,
ADV7511_INT1_CEC_MASK);
} else if (adv7511->cec_enabled_adap && !enable) {
regmap_update_bits(adv7511->regmap,
ADV7511_REG_INT_ENABLE(1), 0x3f, 0);
/* disable address mask 1-3 */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_MASK + offset,
0x70, 0x00);
/* power down cec section */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_CLK_DIV + offset,
0x03, 0x00);
adv7511->cec_valid_addrs = 0;
}
adv7511->cec_enabled_adap = enable;
return 0;
}
static int adv7511_cec_adap_log_addr(struct cec_adapter *adap, u8 addr)
{
struct adv7511 *adv7511 = cec_get_drvdata(adap);
unsigned int offset = adv7511->type == ADV7533 ?
ADV7533_REG_CEC_OFFSET : 0;
unsigned int i, free_idx = ADV7511_MAX_ADDRS;
if (!adv7511->cec_enabled_adap)
return addr == CEC_LOG_ADDR_INVALID ? 0 : -EIO;
if (addr == CEC_LOG_ADDR_INVALID) {
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_MASK + offset,
0x70, 0);
adv7511->cec_valid_addrs = 0;
return 0;
}
for (i = 0; i < ADV7511_MAX_ADDRS; i++) {
bool is_valid = adv7511->cec_valid_addrs & (1 << i);
if (free_idx == ADV7511_MAX_ADDRS && !is_valid)
free_idx = i;
if (is_valid && adv7511->cec_addr[i] == addr)
return 0;
}
if (i == ADV7511_MAX_ADDRS) {
i = free_idx;
if (i == ADV7511_MAX_ADDRS)
return -ENXIO;
}
adv7511->cec_addr[i] = addr;
adv7511->cec_valid_addrs |= 1 << i;
switch (i) {
case 0:
/* enable address mask 0 */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_MASK + offset,
0x10, 0x10);
/* set address for mask 0 */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_0_1 + offset,
0x0f, addr);
break;
case 1:
/* enable address mask 1 */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_MASK + offset,
0x20, 0x20);
/* set address for mask 1 */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_0_1 + offset,
0xf0, addr << 4);
break;
case 2:
/* enable address mask 2 */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_MASK + offset,
0x40, 0x40);
/* set address for mask 1 */
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_LOG_ADDR_2 + offset,
0x0f, addr);
break;
}
return 0;
}
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->type == ADV7533 ?
ADV7533_REG_CEC_OFFSET : 0;
u8 len = msg->len;
unsigned int i;
/*
* The number of retries is the number of attempts - 1, but retry
* at least once. It's not clear if a value of 0 is allowed, so
* let's do at least one retry.
*/
regmap_update_bits(adv7511->regmap_cec,
ADV7511_REG_CEC_TX_RETRY + offset,
0x70, max(1, attempts - 1) << 4);
/* blocking, clear cec tx irq status */
regmap_update_bits(adv7511->regmap, ADV7511_REG_INT(1), 0x38, 0x38);
/* write data */
for (i = 0; i < len; i++)
regmap_write(adv7511->regmap_cec,
i + ADV7511_REG_CEC_TX_FRAME_HDR + offset,
msg->msg[i]);
/* set length (data + header) */
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_TX_FRAME_LEN + offset, len);
/* start transmit, enable tx */
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_TX_ENABLE + offset, 0x01);
return 0;
}
static const struct cec_adap_ops adv7511_cec_adap_ops = {
.adap_enable = adv7511_cec_adap_enable,
.adap_log_addr = adv7511_cec_adap_log_addr,
.adap_transmit = adv7511_cec_adap_transmit,
};
static int adv7511_cec_parse_dt(struct device *dev, struct adv7511 *adv7511)
{
adv7511->cec_clk = devm_clk_get(dev, "cec");
if (IS_ERR(adv7511->cec_clk)) {
int ret = PTR_ERR(adv7511->cec_clk);
adv7511->cec_clk = NULL;
return ret;
}
clk_prepare_enable(adv7511->cec_clk);
adv7511->cec_clk_freq = clk_get_rate(adv7511->cec_clk);
return 0;
}
int adv7511_cec_init(struct device *dev, struct adv7511 *adv7511,
unsigned int offset)
{
int ret = adv7511_cec_parse_dt(dev, adv7511);
if (ret)
return ret;
adv7511->cec_adap = cec_allocate_adapter(&adv7511_cec_adap_ops,
adv7511, dev_name(dev), CEC_CAP_DEFAULTS, ADV7511_MAX_ADDRS);
if (IS_ERR(adv7511->cec_adap))
return PTR_ERR(adv7511->cec_adap);
regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL + offset, 0);
/* cec soft reset */
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_SOFT_RESET + offset, 0x01);
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_SOFT_RESET + offset, 0x00);
/* legacy mode */
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_RX_BUFFERS + offset, 0x00);
regmap_write(adv7511->regmap_cec,
ADV7511_REG_CEC_CLK_DIV + offset,
((adv7511->cec_clk_freq / 750000) - 1) << 2);
ret = cec_register_adapter(adv7511->cec_adap, dev);
if (ret) {
cec_delete_adapter(adv7511->cec_adap);
adv7511->cec_adap = NULL;
}
return ret;
}
......@@ -11,12 +11,15 @@
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/slab.h>
#include <linux/clk.h>
#include <drm/drmP.h>
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_edid.h>
#include <media/cec.h>
#include "adv7511.h"
/* ADI recommended values for proper operation. */
......@@ -336,7 +339,9 @@ static void __adv7511_power_on(struct adv7511 *adv7511)
*/
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD);
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
regmap_update_bits(adv7511->regmap,
ADV7511_REG_INT_ENABLE(1),
ADV7511_INT1_DDC_ERROR,
ADV7511_INT1_DDC_ERROR);
}
......@@ -373,6 +378,9 @@ static void __adv7511_power_off(struct adv7511 *adv7511)
regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
ADV7511_POWER_POWER_DOWN,
ADV7511_POWER_POWER_DOWN);
regmap_update_bits(adv7511->regmap,
ADV7511_REG_INT_ENABLE(1),
ADV7511_INT1_DDC_ERROR, 0);
regcache_mark_dirty(adv7511->regmap);
}
......@@ -423,6 +431,8 @@ static void adv7511_hpd_work(struct work_struct *work)
if (adv7511->connector.status != status) {
adv7511->connector.status = status;
if (status == connector_status_disconnected)
cec_phys_addr_invalidate(adv7511->cec_adap);
drm_kms_helper_hotplug_event(adv7511->connector.dev);
}
}
......@@ -453,6 +463,10 @@ static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
wake_up_all(&adv7511->wq);
}
#ifdef CONFIG_DRM_I2C_ADV7511_CEC
adv7511_cec_irq_process(adv7511, irq1);
#endif
return 0;
}
......@@ -595,6 +609,8 @@ static int adv7511_get_modes(struct adv7511 *adv7511,
kfree(edid);
cec_s_phys_addr_from_edid(adv7511->cec_adap, edid);
return count;
}
......@@ -919,6 +935,65 @@ static void adv7511_uninit_regulators(struct adv7511 *adv)
regulator_bulk_disable(adv->num_supplies, adv->supplies);
}
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)
reg -= ADV7533_REG_CEC_OFFSET;
switch (reg) {
case ADV7511_REG_CEC_RX_FRAME_HDR:
case ADV7511_REG_CEC_RX_FRAME_DATA0...
ADV7511_REG_CEC_RX_FRAME_DATA0 + 14:
case ADV7511_REG_CEC_RX_FRAME_LEN:
case ADV7511_REG_CEC_RX_BUFFERS:
case ADV7511_REG_CEC_TX_LOW_DRV_CNT:
return true;
}
return false;
}
static const struct regmap_config adv7511_cec_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
.cache_type = REGCACHE_RBTREE,
.volatile_reg = adv7511_cec_register_volatile,
};
static int adv7511_init_cec_regmap(struct adv7511 *adv)
{
int ret;
adv->i2c_cec = i2c_new_dummy(adv->i2c_main->adapter,
adv->i2c_main->addr - 1);
if (!adv->i2c_cec)
return -ENOMEM;
i2c_set_clientdata(adv->i2c_cec, adv);
adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec,
&adv7511_cec_regmap_config);
if (IS_ERR(adv->regmap_cec)) {
ret = PTR_ERR(adv->regmap_cec);
goto err;
}
if (adv->type == ADV7533) {
ret = adv7533_patch_cec_registers(adv);
if (ret)
goto err;
}
return 0;
err:
i2c_unregister_device(adv->i2c_cec);
return ret;
}
static int adv7511_parse_dt(struct device_node *np,
struct adv7511_link_config *config)
{
......@@ -1009,6 +1084,7 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
struct device *dev = &i2c->dev;
unsigned int main_i2c_addr = i2c->addr << 1;
unsigned int edid_i2c_addr = main_i2c_addr + 4;
unsigned int offset;
unsigned int val;
int ret;
......@@ -1092,11 +1168,9 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
goto uninit_regulators;
}
if (adv7511->type == ADV7533) {
ret = adv7533_init_cec(adv7511);
ret = adv7511_init_cec_regmap(adv7511);
if (ret)
goto err_i2c_unregister_edid;
}
INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
......@@ -1111,10 +1185,6 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
goto err_unregister_cec;
}
/* CEC is unused for now */
regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL,
ADV7511_CEC_CTRL_POWER_DOWN);
adv7511_power_off(adv7511);
i2c_set_clientdata(i2c, adv7511);
......@@ -1129,10 +1199,23 @@ static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
adv7511_audio_init(dev, adv7511);
offset = adv7511->type == ADV7533 ? ADV7533_REG_CEC_OFFSET : 0;
#ifdef CONFIG_DRM_I2C_ADV7511_CEC
ret = adv7511_cec_init(dev, adv7511, offset);
if (ret)
goto err_unregister_cec;
#else
regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL + offset,
ADV7511_CEC_CTRL_POWER_DOWN);
#endif
return 0;
err_unregister_cec:
adv7533_uninit_cec(adv7511);
i2c_unregister_device(adv7511->i2c_cec);
if (adv7511->cec_clk)
clk_disable_unprepare(adv7511->cec_clk);
err_i2c_unregister_edid:
i2c_unregister_device(adv7511->i2c_edid);
uninit_regulators:
......@@ -1145,10 +1228,11 @@ static int adv7511_remove(struct i2c_client *i2c)
{
struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
if (adv7511->type == ADV7533) {
if (adv7511->type == ADV7533)
adv7533_detach_dsi(adv7511);
adv7533_uninit_cec(adv7511);
}
i2c_unregister_device(adv7511->i2c_cec);
if (adv7511->cec_clk)
clk_disable_unprepare(adv7511->cec_clk);
adv7511_uninit_regulators(adv7511);
......@@ -1156,6 +1240,8 @@ static int adv7511_remove(struct i2c_client *i2c)
adv7511_audio_exit(adv7511);
cec_unregister_adapter(adv7511->cec_adap);
i2c_unregister_device(adv7511->i2c_edid);
return 0;
......
......@@ -32,14 +32,6 @@ static const struct reg_sequence adv7533_cec_fixed_registers[] = {
{ 0x05, 0xc8 },
};
static const struct regmap_config adv7533_cec_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0xff,
.cache_type = REGCACHE_RBTREE,
};
static void adv7511_dsi_config_timing_gen(struct adv7511 *adv)
{
struct mipi_dsi_device *dsi = adv->dsi;
......@@ -145,37 +137,11 @@ int adv7533_patch_registers(struct adv7511 *adv)
ARRAY_SIZE(adv7533_fixed_registers));
}
void adv7533_uninit_cec(struct adv7511 *adv)
{
i2c_unregister_device(adv->i2c_cec);
}
int adv7533_init_cec(struct adv7511 *adv)
int adv7533_patch_cec_registers(struct adv7511 *adv)
{
int ret;
adv->i2c_cec = i2c_new_dummy(adv->i2c_main->adapter,
adv->i2c_main->addr - 1);
if (!adv->i2c_cec)
return -ENOMEM;
adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec,
&adv7533_cec_regmap_config);
if (IS_ERR(adv->regmap_cec)) {
ret = PTR_ERR(adv->regmap_cec);
goto err;
}
ret = regmap_register_patch(adv->regmap_cec,
return regmap_register_patch(adv->regmap_cec,
adv7533_cec_fixed_registers,
ARRAY_SIZE(adv7533_cec_fixed_registers));
if (ret)
goto err;
return 0;
err:
adv7533_uninit_cec(adv);
return ret;
}
int adv7533_attach_dsi(struct adv7511 *adv)
......
......@@ -188,7 +188,15 @@ EXPORT_SYMBOL(drm_panel_bridge_add);
*/
void drm_panel_bridge_remove(struct drm_bridge *bridge)
{
struct panel_bridge *panel_bridge = drm_bridge_to_panel_bridge(bridge);
struct panel_bridge *panel_bridge;
if (!bridge)
return;
if (bridge->funcs != &panel_bridge_bridge_funcs)
return;
panel_bridge = drm_bridge_to_panel_bridge(bridge);
drm_bridge_remove(bridge);
devm_kfree(panel_bridge->panel->dev, bridge);
......
This diff is collapsed.
......@@ -28,6 +28,8 @@
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <media/rc-core.h>
#include "sil-sii8620.h"
#define SII8620_BURST_BUF_LEN 288
......@@ -58,6 +60,7 @@ enum sii8620_mt_state {
struct sii8620 {
struct drm_bridge bridge;
struct device *dev;
struct rc_dev *rc_dev;
struct clk *clk_xtal;
struct gpio_desc *gpio_reset;
struct gpio_desc *gpio_int;
......@@ -431,6 +434,16 @@ static void sii8620_mt_rap(struct sii8620 *ctx, u8 code)
sii8620_mt_msc_msg(ctx, MHL_MSC_MSG_RAP, code);
}
static void sii8620_mt_rcpk(struct sii8620 *ctx, u8 code)
{
sii8620_mt_msc_msg(ctx, MHL_MSC_MSG_RCPK, code);
}
static void sii8620_mt_rcpe(struct sii8620 *ctx, u8 code)
{
sii8620_mt_msc_msg(ctx, MHL_MSC_MSG_RCPE, code);
}
static void sii8620_mt_read_devcap_send(struct sii8620 *ctx,
struct sii8620_mt_msg *msg)
{
......@@ -1753,6 +1766,25 @@ static void sii8620_send_features(struct sii8620 *ctx)
sii8620_write_buf(ctx, REG_MDT_XMIT_WRITE_PORT, buf, ARRAY_SIZE(buf));
}
static bool sii8620_rcp_consume(struct sii8620 *ctx, u8 scancode)
{
bool pressed = !(scancode & MHL_RCP_KEY_RELEASED_MASK);
scancode &= MHL_RCP_KEY_ID_MASK;
if (!ctx->rc_dev) {
dev_dbg(ctx->dev, "RCP input device not initialized\n");
return false;
}
if (pressed)
rc_keydown(ctx->rc_dev, RC_PROTO_CEC, scancode, 0);
else
rc_keyup(ctx->rc_dev);
return true;
}
static void sii8620_msc_mr_set_int(struct sii8620 *ctx)
{
u8 ints[MHL_INT_SIZE];
......@@ -1804,19 +1836,25 @@ static void sii8620_msc_mt_done(struct sii8620 *ctx)
static void sii8620_msc_mr_msc_msg(struct sii8620 *ctx)
{
struct sii8620_mt_msg *msg = sii8620_msc_msg_first(ctx);
struct sii8620_mt_msg *msg;
u8 buf[2];
if (!msg)
return;
sii8620_read_buf(ctx, REG_MSC_MR_MSC_MSG_RCVD_1ST_DATA, buf, 2);
switch (buf[0]) {
case MHL_MSC_MSG_RAPK:
msg = sii8620_msc_msg_first(ctx);
if (!msg)
return;
msg->ret = buf[1];
ctx->mt_state = MT_STATE_DONE;
break;
case MHL_MSC_MSG_RCP:
if (!sii8620_rcp_consume(ctx, buf[1]))
sii8620_mt_rcpe(ctx,
MHL_RCPE_STATUS_INEFFECTIVE_KEY_CODE);
sii8620_mt_rcpk(ctx, buf[1]);
break;
default:
dev_err(ctx->dev, "%s message type %d,%d not supported",
__func__, buf[0], buf[1]);
......@@ -2102,11 +2140,57 @@ static void sii8620_cable_in(struct sii8620 *ctx)
enable_irq(to_i2c_client(ctx->dev)->irq);
}
static void sii8620_init_rcp_input_dev(struct sii8620 *ctx)
{
struct rc_dev *rc_dev;
int ret;
rc_dev = rc_allocate_device(RC_DRIVER_SCANCODE);
if (!rc_dev) {
dev_err(ctx->dev, "Failed to allocate RC device\n");
ctx->error = -ENOMEM;
return;
}
rc_dev->input_phys = "sii8620/input0";
rc_dev->input_id.bustype = BUS_VIRTUAL;
rc_dev->map_name = RC_MAP_CEC;
rc_dev->allowed_protocols = RC_PROTO_BIT_CEC;
rc_dev->driver_name = "sii8620";
rc_dev->device_name = "sii8620";
ret = rc_register_device(rc_dev);
if (ret) {
dev_err(ctx->dev, "Failed to register RC device\n");
ctx->error = ret;
rc_free_device(ctx->rc_dev);
return;
}
ctx->rc_dev = rc_dev;
}
static inline struct sii8620 *bridge_to_sii8620(struct drm_bridge *bridge)
{
return container_of(bridge, struct sii8620, bridge);
}
static int sii8620_attach(struct drm_bridge *bridge)
{
struct sii8620 *ctx = bridge_to_sii8620(bridge);
sii8620_init_rcp_input_dev(ctx);
return sii8620_clear_error(ctx);
}
static void sii8620_detach(struct drm_bridge *bridge)
{
struct sii8620 *ctx = bridge_to_sii8620(bridge);
rc_unregister_device(ctx->rc_dev);
}
static bool sii8620_mode_fixup(struct drm_bridge *bridge,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
......@@ -2151,6 +2235,8 @@ static bool sii8620_mode_fixup(struct drm_bridge *bridge,
}
static const struct drm_bridge_funcs sii8620_bridge_funcs = {
.attach = sii8620_attach,
.detach = sii8620_detach,
.mode_fixup = sii8620_mode_fixup,
};
......@@ -2217,8 +2303,8 @@ static int sii8620_remove(struct i2c_client *client)
struct sii8620 *ctx = i2c_get_clientdata(client);
disable_irq(to_i2c_client(ctx->dev)->irq);
drm_bridge_remove(&ctx->bridge);
sii8620_hw_off(ctx);
drm_bridge_remove(&ctx->bridge);
return 0;
}
......
......@@ -221,7 +221,6 @@ struct dw_mipi_dsi {
struct drm_bridge bridge;
struct mipi_dsi_host dsi_host;
struct drm_bridge *panel_bridge;
bool is_panel_bridge;
struct device *dev;
void __iomem *base;
......@@ -297,7 +296,6 @@ static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
bridge = drm_panel_bridge_add(panel, DRM_MODE_CONNECTOR_DSI);
if (IS_ERR(bridge))
return PTR_ERR(bridge);
dsi->is_panel_bridge = true;
}
dsi->panel_bridge = bridge;
......@@ -312,8 +310,7 @@ static int dw_mipi_dsi_host_detach(struct mipi_dsi_host *host,
{
struct dw_mipi_dsi *dsi = host_to_dsi(host);
if (dsi->is_panel_bridge)
drm_panel_bridge_remove(dsi->panel_bridge);
drm_of_panel_bridge_remove(host->dev->of_node, 1, 0);
drm_bridge_remove(&dsi->bridge);
......
......@@ -182,9 +182,6 @@ void drm_atomic_state_default_clear(struct drm_atomic_state *state)
for (i = 0; i < state->num_private_objs; i++) {
struct drm_private_obj *obj = state->private_objs[i].ptr;
if (!obj)
continue;
obj->funcs->atomic_destroy_state(obj,
state->private_objs[i].state);
state->private_objs[i].ptr = NULL;
......
......@@ -3052,6 +3052,7 @@ int drm_atomic_helper_resume(struct drm_device *dev,
drm_modeset_backoff(&ctx);
}
drm_atomic_state_put(state);
drm_modeset_drop_locks(&ctx);
drm_modeset_acquire_fini(&ctx);
......
......@@ -137,8 +137,10 @@ EXPORT_SYMBOL(drm_dp_link_train_channel_eq_delay);
u8 drm_dp_link_rate_to_bw_code(int link_rate)
{
switch (link_rate) {
case 162000:
default:
WARN(1, "unknown DP link rate %d, using %x\n", link_rate,
DP_LINK_BW_1_62);
case 162000:
return DP_LINK_BW_1_62;
case 270000:
return DP_LINK_BW_2_7;
......@@ -151,8 +153,9 @@ EXPORT_SYMBOL(drm_dp_link_rate_to_bw_code);
int drm_dp_bw_code_to_link_rate(u8 link_bw)
{
switch (link_bw) {
case DP_LINK_BW_1_62:
default:
WARN(1, "unknown DP link BW code %x, using 162000\n", link_bw);
case DP_LINK_BW_1_62:
return 162000;
case DP_LINK_BW_2_7:
return 270000;
......
......@@ -27,19 +27,24 @@
* DOC: overview
*
* This library provides helpers for drivers that don't subclass
* &drm_framebuffer and and use &drm_gem_object for their backing storage.
* &drm_framebuffer and use &drm_gem_object for their backing storage.
*
* Drivers without additional needs to validate framebuffers can simply use
* drm_gem_fb_create() and everything is wired up automatically. But all
* parts can be used individually.
* drm_gem_fb_create() and everything is wired up automatically. Other drivers
* can use all parts independently.
*/
/**
* drm_gem_fb_get_obj() - Get GEM object for framebuffer
* @fb: The framebuffer
* @plane: Which plane
* drm_gem_fb_get_obj() - Get GEM object backing the framebuffer
* @fb: Framebuffer
* @plane: Plane index
*
* Returns the GEM object for given framebuffer.
* No additional reference is taken beyond the one that the &drm_frambuffer
* already holds.
*
* Returns:
* Pointer to &drm_gem_object for the given framebuffer and plane index or NULL
* if it does not exist.
*/
struct drm_gem_object *drm_gem_fb_get_obj(struct drm_framebuffer *fb,
unsigned int plane)
......@@ -82,7 +87,7 @@ drm_gem_fb_alloc(struct drm_device *dev,
/**
* drm_gem_fb_destroy - Free GEM backed framebuffer
* @fb: DRM framebuffer
* @fb: Framebuffer
*
* Frees a GEM backed framebuffer with its backing buffer(s) and the structure
* itself. Drivers can use this as their &drm_framebuffer_funcs->destroy
......@@ -102,12 +107,13 @@ EXPORT_SYMBOL(drm_gem_fb_destroy);
/**
* drm_gem_fb_create_handle - Create handle for GEM backed framebuffer
* @fb: DRM framebuffer
* @file: drm file
* @handle: handle created
* @fb: Framebuffer
* @file: DRM file to register the handle for
* @handle: Pointer to return the created handle
*
* This function creates a handle for the GEM object backing the framebuffer.
* Drivers can use this as their &drm_framebuffer_funcs->create_handle
* callback.
* callback. The GETFB IOCTL calls into this callback.
*
* Returns:
* 0 on success or a negative error code on failure.
......@@ -120,18 +126,21 @@ int drm_gem_fb_create_handle(struct drm_framebuffer *fb, struct drm_file *file,
EXPORT_SYMBOL(drm_gem_fb_create_handle);
/**
* drm_gem_fb_create_with_funcs() - helper function for the
* drm_gem_fb_create_with_funcs() - Helper function for the
* &drm_mode_config_funcs.fb_create
* callback
* @dev: DRM device
* @file: drm file for the ioctl call
* @mode_cmd: metadata from the userspace fb creation request
* @file: DRM file that holds the GEM handle(s) backing the framebuffer
* @mode_cmd: Metadata from the userspace framebuffer creation request
* @funcs: vtable to be used for the new framebuffer object
*
* This can be used to set &drm_framebuffer_funcs for drivers that need the
* &drm_framebuffer_funcs.dirty callback. Use drm_gem_fb_create() if you don't
* need to change &drm_framebuffer_funcs.
* The function does buffer size validation.
*
* Returns:
* Pointer to a &drm_framebuffer on success or an error pointer on failure.
*/
struct drm_framebuffer *
drm_gem_fb_create_with_funcs(struct drm_device *dev, struct drm_file *file,
......@@ -192,15 +201,26 @@ static const struct drm_framebuffer_funcs drm_gem_fb_funcs = {
};
/**
* drm_gem_fb_create() - &drm_mode_config_funcs.fb_create callback function
* drm_gem_fb_create() - Helper function for the
* &drm_mode_config_funcs.fb_create callback
* @dev: DRM device
* @file: drm file for the ioctl call
* @mode_cmd: metadata from the userspace fb creation request
* @file: DRM file that holds the GEM handle(s) backing the framebuffer
* @mode_cmd: Metadata from the userspace framebuffer creation request
*
* This function creates a new framebuffer object described by
* &drm_mode_fb_cmd2. This description includes handles for the buffer(s)
* backing the framebuffer.
*
* If your hardware has special alignment or pitch requirements these should be
* checked before calling this function. The function does buffer size
* validation. Use drm_gem_fb_create_with_funcs() if you need to set
* &drm_framebuffer_funcs.dirty.
*
* Drivers can use this as their &drm_mode_config_funcs.fb_create callback.
* The ADDFB2 IOCTL calls into this callback.
*
* Returns:
* Pointer to a &drm_framebuffer on success or an error pointer on failure.
*/
struct drm_framebuffer *
drm_gem_fb_create(struct drm_device *dev, struct drm_file *file,
......@@ -212,15 +232,15 @@ drm_gem_fb_create(struct drm_device *dev, struct drm_file *file,
EXPORT_SYMBOL_GPL(drm_gem_fb_create);
/**
* drm_gem_fb_prepare_fb() - Prepare gem framebuffer
* @plane: Which plane
* @state: Plane state attach fence to
* drm_gem_fb_prepare_fb() - Prepare a GEM backed framebuffer
* @plane: Plane
* @state: Plane state the fence will be attached to
*
* This can be used as the &drm_plane_helper_funcs.prepare_fb hook.
*
* This function checks if the plane FB has an dma-buf attached, extracts
* the exclusive fence and attaches it to plane state for the atomic helper
* to wait on.
* This function prepares a GEM backed framebuffer for scanout by checking if
* the plane framebuffer has a DMA-BUF attached. If it does, it extracts the
* exclusive fence and attaches it to the plane state for the atomic helper to
* wait on. This function can be used as the &drm_plane_helper_funcs.prepare_fb
* callback.
*
* There is no need for &drm_plane_helper_funcs.cleanup_fb hook for simple
* gem based framebuffer drivers which have their buffers always pinned in
......@@ -246,17 +266,19 @@ int drm_gem_fb_prepare_fb(struct drm_plane *plane,
EXPORT_SYMBOL_GPL(drm_gem_fb_prepare_fb);
/**
* drm_gem_fbdev_fb_create - Create a drm_framebuffer for fbdev emulation
* drm_gem_fbdev_fb_create - Create a GEM backed &drm_framebuffer for fbdev
* emulation
* @dev: DRM device
* @sizes: fbdev size description
* @pitch_align: optional pitch alignment
* @pitch_align: Optional pitch alignment
* @obj: GEM object backing the framebuffer
* @funcs: vtable to be used for the new framebuffer object
*
* This function creates a framebuffer for use with fbdev emulation.
* This function creates a framebuffer from a &drm_fb_helper_surface_size
* description for use in the &drm_fb_helper_funcs.fb_probe callback.
*
* Returns:
* Pointer to a drm_framebuffer on success or an error pointer on failure.
* Pointer to a &drm_framebuffer on success or an error pointer on failure.
*/
struct drm_framebuffer *
drm_gem_fbdev_fb_create(struct drm_device *dev,
......
......@@ -262,3 +262,36 @@ int drm_of_find_panel_or_bridge(const struct device_node *np,
return ret;
}
EXPORT_SYMBOL_GPL(drm_of_find_panel_or_bridge);
#ifdef CONFIG_DRM_PANEL_BRIDGE
/*
* drm_of_panel_bridge_remove - remove panel bridge
* @np: device tree node containing panel bridge output ports
*
* Remove the panel bridge of a given DT node's port and endpoint number
*
* Returns zero if successful, or one of the standard error codes if it fails.
*/
int drm_of_panel_bridge_remove(const struct device_node *np,
int port, int endpoint)
{
struct drm_bridge *bridge;
struct device_node *remote;
remote = of_graph_get_remote_node(np, port, endpoint);
if (!remote)
return -ENODEV;
bridge = of_drm_find_bridge(remote);
drm_panel_bridge_remove(bridge);
return 0;
}
#else
int drm_of_panel_bridge_remove(const struct device_node *np,
int port, int endpoint)
{
return -EINVAL;
}
#endif
EXPORT_SYMBOL_GPL(drm_of_panel_bridge_remove);
......@@ -599,7 +599,7 @@ static u32 mdp5_get_vblank_counter(struct drm_device *dev, unsigned int pipe)
struct drm_crtc *crtc;
struct drm_encoder *encoder;
if (pipe < 0 || pipe >= priv->num_crtcs)
if (pipe >= priv->num_crtcs)
return 0;
crtc = priv->crtcs[pipe];
......
......@@ -82,6 +82,14 @@ config DRM_PANEL_PANASONIC_VVX10F034N00
WUXGA (1920x1200) Novatek NT1397-based DSI panel as found in some
Xperia Z2 tablets
config DRM_PANEL_RASPBERRYPI_TOUCHSCREEN
tristate "Raspberry Pi 7-inch touchscreen panel"
depends on DRM_MIPI_DSI
help
Say Y here if you want to enable support for the Raspberry
Pi 7" Touchscreen. To compile this driver as a module,
choose M here.
config DRM_PANEL_SAMSUNG_S6E3HA2
tristate "Samsung S6E3HA2 DSI video mode panel"
depends on OF
......
......@@ -5,6 +5,7 @@ obj-$(CONFIG_DRM_PANEL_JDI_LT070ME05000) += panel-jdi-lt070me05000.o
obj-$(CONFIG_DRM_PANEL_LG_LG4573) += panel-lg-lg4573.o
obj-$(CONFIG_DRM_PANEL_ORISETECH_OTM8009A) += panel-orisetech-otm8009a.o
obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E3HA2) += panel-samsung-s6e3ha2.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E63J0X03) += panel-samsung-s6e63j0x03.o
......
This diff is collapsed.
......@@ -791,9 +791,8 @@ static const struct drm_encoder_funcs ltdc_encoder_funcs = {
.destroy = drm_encoder_cleanup,
};
static int ltdc_encoder_init(struct drm_device *ddev)
static int ltdc_encoder_init(struct drm_device *ddev, struct drm_bridge *bridge)
{
struct ltdc_device *ldev = ddev->dev_private;
struct drm_encoder *encoder;
int ret;
......@@ -807,7 +806,7 @@ static int ltdc_encoder_init(struct drm_device *ddev)
drm_encoder_init(ddev, encoder, &ltdc_encoder_funcs,
DRM_MODE_ENCODER_DPI, NULL);
ret = drm_bridge_attach(encoder, ldev->bridge, NULL);
ret = drm_bridge_attach(encoder, bridge, NULL);
if (ret) {
drm_encoder_cleanup(encoder);
return -EINVAL;
......@@ -936,12 +935,9 @@ int ltdc_load(struct drm_device *ddev)
ret = PTR_ERR(bridge);
goto err;
}
ldev->is_panel_bridge = true;
}
ldev->bridge = bridge;
ret = ltdc_encoder_init(ddev);
ret = ltdc_encoder_init(ddev, bridge);
if (ret) {
DRM_ERROR("Failed to init encoder\n");
goto err;
......@@ -972,7 +968,6 @@ int ltdc_load(struct drm_device *ddev)
return 0;
err:
if (ldev->is_panel_bridge)
drm_panel_bridge_remove(bridge);
clk_disable_unprepare(ldev->pixel_clk);
......@@ -986,8 +981,7 @@ void ltdc_unload(struct drm_device *ddev)
DRM_DEBUG_DRIVER("\n");
if (ldev->is_panel_bridge)
drm_panel_bridge_remove(ldev->bridge);
drm_of_panel_bridge_remove(ddev->dev->of_node, 0, 0);
clk_disable_unprepare(ldev->pixel_clk);
}
......
......@@ -24,8 +24,6 @@ struct ltdc_device {
struct drm_fbdev_cma *fbdev;
void __iomem *regs;
struct clk *pixel_clk; /* lcd pixel clock */
struct drm_bridge *bridge;
bool is_panel_bridge;
struct mutex err_lock; /* protecting error_status */
struct ltdc_caps caps;
u32 error_status;
......
......@@ -14,6 +14,7 @@
#include <drm/drm_connector.h>
#include <drm/drm_encoder.h>
#include <linux/regmap.h>
#include <media/cec-pin.h>
......@@ -58,10 +59,13 @@
#define SUN4I_HDMI_PAD_CTRL0_TXEN BIT(23)
#define SUN4I_HDMI_PAD_CTRL1_REG 0x204
#define SUN4I_HDMI_PAD_CTRL1_UNKNOWN BIT(24) /* set on A31 */
#define SUN4I_HDMI_PAD_CTRL1_AMP_OPT BIT(23)
#define SUN4I_HDMI_PAD_CTRL1_AMPCK_OPT BIT(22)
#define SUN4I_HDMI_PAD_CTRL1_EMP_OPT BIT(20)
#define SUN4I_HDMI_PAD_CTRL1_EMPCK_OPT BIT(19)
#define SUN4I_HDMI_PAD_CTRL1_PWSCK BIT(18)
#define SUN4I_HDMI_PAD_CTRL1_PWSDT BIT(17)
#define SUN4I_HDMI_PAD_CTRL1_REG_DEN BIT(15)
#define SUN4I_HDMI_PAD_CTRL1_REG_DENCK BIT(14)
#define SUN4I_HDMI_PAD_CTRL1_REG_EMP(n) (((n) & 7) << 10)
......@@ -152,21 +156,106 @@
#define SUN4I_HDMI_DDC_FIFO_SIZE 16
/* A31 specific */
#define SUN6I_HDMI_DDC_CTRL_REG 0x500
#define SUN6I_HDMI_DDC_CTRL_RESET BIT(31)
#define SUN6I_HDMI_DDC_CTRL_START_CMD BIT(27)
#define SUN6I_HDMI_DDC_CTRL_SDA_ENABLE BIT(6)
#define SUN6I_HDMI_DDC_CTRL_SCL_ENABLE BIT(4)
#define SUN6I_HDMI_DDC_CTRL_ENABLE BIT(0)
#define SUN6I_HDMI_DDC_CMD_REG 0x508
#define SUN6I_HDMI_DDC_CMD_BYTE_COUNT(count) ((count) << 16)
/* command types in lower 3 bits are the same as sun4i */
#define SUN6I_HDMI_DDC_ADDR_REG 0x50c
#define SUN6I_HDMI_DDC_ADDR_SEGMENT(seg) (((seg) & 0xff) << 24)
#define SUN6I_HDMI_DDC_ADDR_EDDC(addr) (((addr) & 0xff) << 16)
#define SUN6I_HDMI_DDC_ADDR_OFFSET(off) (((off) & 0xff) << 8)
#define SUN6I_HDMI_DDC_ADDR_SLAVE(addr) (((addr) & 0xff) << 1)
#define SUN6I_HDMI_DDC_INT_STATUS_REG 0x514
#define SUN6I_HDMI_DDC_INT_STATUS_TIMEOUT BIT(8)
/* lower 8 bits are the same as sun4i */
#define SUN6I_HDMI_DDC_FIFO_CTRL_REG 0x518
#define SUN6I_HDMI_DDC_FIFO_CTRL_CLEAR BIT(15)
/* lower 9 bits are the same as sun4i */
#define SUN6I_HDMI_DDC_CLK_REG 0x520
/* DDC CLK bit fields are the same, but the formula is not */
#define SUN6I_HDMI_DDC_FIFO_DATA_REG 0x580
enum sun4i_hdmi_pkt_type {
SUN4I_HDMI_PKT_AVI = 2,
SUN4I_HDMI_PKT_END = 15,
};
struct sun4i_hdmi_variant {
bool has_ddc_parent_clk;
bool has_reset_control;
u32 pad_ctrl0_init_val;
u32 pad_ctrl1_init_val;
u32 pll_ctrl_init_val;
struct reg_field ddc_clk_reg;
u8 ddc_clk_pre_divider;
u8 ddc_clk_m_offset;
u8 tmds_clk_div_offset;
/* Register fields for I2C adapter */
struct reg_field field_ddc_en;
struct reg_field field_ddc_start;
struct reg_field field_ddc_reset;
struct reg_field field_ddc_addr_reg;
struct reg_field field_ddc_slave_addr;
struct reg_field field_ddc_int_mask;
struct reg_field field_ddc_int_status;
struct reg_field field_ddc_fifo_clear;
struct reg_field field_ddc_fifo_rx_thres;
struct reg_field field_ddc_fifo_tx_thres;
struct reg_field field_ddc_byte_count;
struct reg_field field_ddc_cmd;
struct reg_field field_ddc_sda_en;
struct reg_field field_ddc_sck_en;
/* DDC FIFO register offset */
u32 ddc_fifo_reg;
/*
* DDC FIFO threshold boundary conditions
*
* This is used to cope with the threshold boundary condition
* being slightly different on sun5i and sun6i.
*
* On sun5i the threshold is exclusive, i.e. does not include,
* the value of the threshold. ( > for RX; < for TX )
* On sun6i the threshold is inclusive, i.e. includes, the
* value of the threshold. ( >= for RX; <= for TX )
*/
bool ddc_fifo_thres_incl;
bool ddc_fifo_has_dir;
};
struct sun4i_hdmi {
struct drm_connector connector;
struct drm_encoder encoder;
struct device *dev;
void __iomem *base;
struct regmap *regmap;
/* Reset control */
struct reset_control *reset;
/* Parent clocks */
struct clk *bus_clk;
struct clk *mod_clk;
struct clk *ddc_parent_clk;
struct clk *pll0_clk;
struct clk *pll1_clk;
......@@ -176,10 +265,28 @@ struct sun4i_hdmi {
struct i2c_adapter *i2c;
/* Regmap fields for I2C adapter */
struct regmap_field *field_ddc_en;
struct regmap_field *field_ddc_start;
struct regmap_field *field_ddc_reset;
struct regmap_field *field_ddc_addr_reg;
struct regmap_field *field_ddc_slave_addr;
struct regmap_field *field_ddc_int_mask;
struct regmap_field *field_ddc_int_status;
struct regmap_field *field_ddc_fifo_clear;
struct regmap_field *field_ddc_fifo_rx_thres;
struct regmap_field *field_ddc_fifo_tx_thres;
struct regmap_field *field_ddc_byte_count;
struct regmap_field *field_ddc_cmd;
struct regmap_field *field_ddc_sda_en;
struct regmap_field *field_ddc_sck_en;
struct sun4i_drv *drv;
bool hdmi_monitor;
struct cec_adapter *cec_adap;
const struct sun4i_hdmi_variant *variant;
};
int sun4i_ddc_create(struct sun4i_hdmi *hdmi, struct clk *clk);
......
......@@ -11,6 +11,7 @@
*/
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include "sun4i_tcon.h"
#include "sun4i_hdmi.h"
......@@ -18,6 +19,9 @@
struct sun4i_ddc {
struct clk_hw hw;
struct sun4i_hdmi *hdmi;
struct regmap_field *reg;
u8 pre_div;
u8 m_offset;
};
static inline struct sun4i_ddc *hw_to_ddc(struct clk_hw *hw)
......@@ -27,6 +31,8 @@ static inline struct sun4i_ddc *hw_to_ddc(struct clk_hw *hw)
static unsigned long sun4i_ddc_calc_divider(unsigned long rate,
unsigned long parent_rate,
const u8 pre_div,
const u8 m_offset,
u8 *m, u8 *n)
{
unsigned long best_rate = 0;
......@@ -36,7 +42,8 @@ static unsigned long sun4i_ddc_calc_divider(unsigned long rate,
for (_n = 0; _n < 8; _n++) {
unsigned long tmp_rate;
tmp_rate = (((parent_rate / 2) / 10) >> _n) / (_m + 1);
tmp_rate = (((parent_rate / pre_div) / 10) >> _n) /
(_m + m_offset);
if (tmp_rate > rate)
continue;
......@@ -60,21 +67,25 @@ static unsigned long sun4i_ddc_calc_divider(unsigned long rate,
static long sun4i_ddc_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
return sun4i_ddc_calc_divider(rate, *prate, NULL, NULL);
struct sun4i_ddc *ddc = hw_to_ddc(hw);
return sun4i_ddc_calc_divider(rate, *prate, ddc->pre_div,
ddc->m_offset, NULL, NULL);
}
static unsigned long sun4i_ddc_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct sun4i_ddc *ddc = hw_to_ddc(hw);
u32 reg;
unsigned int reg;
u8 m, n;
reg = readl(ddc->hdmi->base + SUN4I_HDMI_DDC_CLK_REG);
m = (reg >> 3) & 0x7;
regmap_field_read(ddc->reg, &reg);
m = (reg >> 3) & 0xf;
n = reg & 0x7;
return (((parent_rate / 2) / 10) >> n) / (m + 1);
return (((parent_rate / ddc->pre_div) / 10) >> n) /
(m + ddc->m_offset);
}
static int sun4i_ddc_set_rate(struct clk_hw *hw, unsigned long rate,
......@@ -83,10 +94,12 @@ static int sun4i_ddc_set_rate(struct clk_hw *hw, unsigned long rate,
struct sun4i_ddc *ddc = hw_to_ddc(hw);
u8 div_m, div_n;
sun4i_ddc_calc_divider(rate, parent_rate, &div_m, &div_n);
sun4i_ddc_calc_divider(rate, parent_rate, ddc->pre_div,
ddc->m_offset, &div_m, &div_n);
writel(SUN4I_HDMI_DDC_CLK_M(div_m) | SUN4I_HDMI_DDC_CLK_N(div_n),
ddc->hdmi->base + SUN4I_HDMI_DDC_CLK_REG);
regmap_field_write(ddc->reg,
SUN4I_HDMI_DDC_CLK_M(div_m) |
SUN4I_HDMI_DDC_CLK_N(div_n));
return 0;
}
......@@ -111,6 +124,11 @@ int sun4i_ddc_create(struct sun4i_hdmi *hdmi, struct clk *parent)
if (!ddc)
return -ENOMEM;
ddc->reg = devm_regmap_field_alloc(hdmi->dev, hdmi->regmap,
hdmi->variant->ddc_clk_reg);
if (IS_ERR(ddc->reg))
return PTR_ERR(ddc->reg);
init.name = "hdmi-ddc";
init.ops = &sun4i_ddc_ops;
init.parent_names = &parent_name;
......@@ -118,6 +136,8 @@ int sun4i_ddc_create(struct sun4i_hdmi *hdmi, struct clk *parent)
ddc->hdmi = hdmi;
ddc->hw.init = &init;
ddc->pre_div = hdmi->variant->ddc_clk_pre_divider;
ddc->m_offset = hdmi->variant->ddc_clk_m_offset;
hdmi->ddc_clk = devm_clk_register(hdmi->dev, &ddc->hw);
if (IS_ERR(hdmi->ddc_clk))
......
This diff is collapsed.
This diff is collapsed.
......@@ -18,6 +18,8 @@
struct sun4i_tmds {
struct clk_hw hw;
struct sun4i_hdmi *hdmi;
u8 div_offset;
};
static inline struct sun4i_tmds *hw_to_tmds(struct clk_hw *hw)
......@@ -28,6 +30,7 @@ static inline struct sun4i_tmds *hw_to_tmds(struct clk_hw *hw)
static unsigned long sun4i_tmds_calc_divider(unsigned long rate,
unsigned long parent_rate,
u8 div_offset,
u8 *div,
bool *half)
{
......@@ -35,7 +38,7 @@ static unsigned long sun4i_tmds_calc_divider(unsigned long rate,
u8 best_m = 0, m;
bool is_double;
for (m = 1; m < 16; m++) {
for (m = div_offset ?: 1; m < (16 + div_offset); m++) {
u8 d;
for (d = 1; d < 3; d++) {
......@@ -67,11 +70,12 @@ static unsigned long sun4i_tmds_calc_divider(unsigned long rate,
static int sun4i_tmds_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct clk_hw *parent;
struct sun4i_tmds *tmds = hw_to_tmds(hw);
struct clk_hw *parent = NULL;
unsigned long best_parent = 0;
unsigned long rate = req->rate;
int best_div = 1, best_half = 1;
int i, j;
int i, j, p;
/*
* We only consider PLL3, since the TCON is very likely to be
......@@ -79,12 +83,14 @@ static int sun4i_tmds_determine_rate(struct clk_hw *hw,
* clock, so we should not need to do anything.
*/
parent = clk_hw_get_parent_by_index(hw, 0);
for (p = 0; p < clk_hw_get_num_parents(hw); p++) {
parent = clk_hw_get_parent_by_index(hw, p);
if (!parent)
return -EINVAL;
continue;
for (i = 1; i < 3; i++) {
for (j = 1; j < 16; j++) {
for (j = tmds->div_offset ?: 1;
j < (16 + tmds->div_offset); j++) {
unsigned long ideal = rate * i * j;
unsigned long rounded;
......@@ -104,6 +110,10 @@ static int sun4i_tmds_determine_rate(struct clk_hw *hw,
}
}
}
}
if (!parent)
return -EINVAL;
out:
req->rate = best_parent / best_half / best_div;
......@@ -124,7 +134,7 @@ static unsigned long sun4i_tmds_recalc_rate(struct clk_hw *hw,
parent_rate /= 2;
reg = readl(tmds->hdmi->base + SUN4I_HDMI_PLL_CTRL_REG);
reg = (reg >> 4) & 0xf;
reg = ((reg >> 4) & 0xf) + tmds->div_offset;
if (!reg)
reg = 1;
......@@ -139,7 +149,8 @@ static int sun4i_tmds_set_rate(struct clk_hw *hw, unsigned long rate,
u32 reg;
u8 div;
sun4i_tmds_calc_divider(rate, parent_rate, &div, &half);
sun4i_tmds_calc_divider(rate, parent_rate, tmds->div_offset,
&div, &half);
reg = readl(tmds->hdmi->base + SUN4I_HDMI_PAD_CTRL1_REG);
reg &= ~SUN4I_HDMI_PAD_CTRL1_HALVE_CLK;
......@@ -149,7 +160,7 @@ static int sun4i_tmds_set_rate(struct clk_hw *hw, unsigned long rate,
reg = readl(tmds->hdmi->base + SUN4I_HDMI_PLL_CTRL_REG);
reg &= ~SUN4I_HDMI_PLL_CTRL_DIV_MASK;
writel(reg | SUN4I_HDMI_PLL_CTRL_DIV(div),
writel(reg | SUN4I_HDMI_PLL_CTRL_DIV(div - tmds->div_offset),
tmds->hdmi->base + SUN4I_HDMI_PLL_CTRL_REG);
return 0;
......@@ -216,6 +227,7 @@ int sun4i_tmds_create(struct sun4i_hdmi *hdmi)
tmds->hdmi = hdmi;
tmds->hw.init = &init;
tmds->div_offset = hdmi->variant->tmds_clk_div_offset;
hdmi->tmds_clk = devm_clk_register(hdmi->dev, &tmds->hw);
if (IS_ERR(hdmi->tmds_clk))
......
......@@ -14,9 +14,12 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_encoder.h>
#include <drm/drm_modes.h>
#include <drm/drm_of.h>
#include <uapi/drm/drm_mode.h>
#include <linux/component.h>
#include <linux/ioport.h>
#include <linux/of_address.h>
......@@ -109,26 +112,37 @@ void sun4i_tcon_enable_vblank(struct sun4i_tcon *tcon, bool enable)
}
EXPORT_SYMBOL(sun4i_tcon_enable_vblank);
void sun4i_tcon_set_mux(struct sun4i_tcon *tcon, int channel,
struct drm_encoder *encoder)
/*
* This function is a helper for TCON output muxing. The TCON output
* muxing control register in earlier SoCs (without the TCON TOP block)
* are located in TCON0. This helper returns a pointer to TCON0's
* sun4i_tcon structure, or NULL if not found.
*/
static struct sun4i_tcon *sun4i_get_tcon0(struct drm_device *drm)
{
u32 val;
struct sun4i_drv *drv = drm->dev_private;
struct sun4i_tcon *tcon;
if (!tcon->quirks->has_unknown_mux)
return;
list_for_each_entry(tcon, &drv->tcon_list, list)
if (tcon->id == 0)
return tcon;
if (channel != 1)
return;
dev_warn(drm->dev,
"TCON0 not found, display output muxing may not work\n");
if (encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
val = 1;
else
val = 0;
return NULL;
}
/*
* FIXME: Undocumented bits
*/
regmap_write(tcon->regs, SUN4I_TCON_MUX_CTRL_REG, val);
void sun4i_tcon_set_mux(struct sun4i_tcon *tcon, int channel,
struct drm_encoder *encoder)
{
int ret = -ENOTSUPP;
if (tcon->quirks->set_mux)
ret = tcon->quirks->set_mux(tcon, encoder);
DRM_DEBUG_DRIVER("Muxing encoder %s to CRTC %s: %d\n",
encoder->name, encoder->crtc->name, ret);
}
EXPORT_SYMBOL(sun4i_tcon_set_mux);
......@@ -767,14 +781,57 @@ static int sun4i_tcon_remove(struct platform_device *pdev)
return 0;
}
/* platform specific TCON muxing callbacks */
static int sun5i_a13_tcon_set_mux(struct sun4i_tcon *tcon,
struct drm_encoder *encoder)
{
u32 val;
if (encoder->encoder_type == DRM_MODE_ENCODER_TVDAC)
val = 1;
else
val = 0;
/*
* FIXME: Undocumented bits
*/
return regmap_write(tcon->regs, SUN4I_TCON_MUX_CTRL_REG, val);
}
static int sun6i_tcon_set_mux(struct sun4i_tcon *tcon,
struct drm_encoder *encoder)
{
struct sun4i_tcon *tcon0 = sun4i_get_tcon0(encoder->dev);
u32 shift;
if (!tcon0)
return -EINVAL;
switch (encoder->encoder_type) {
case DRM_MODE_ENCODER_TMDS:
/* HDMI */
shift = 8;
break;
default:
/* TODO A31 has MIPI DSI but A31s does not */
return -EINVAL;
}
regmap_update_bits(tcon0->regs, SUN4I_TCON_MUX_CTRL_REG,
0x3 << shift, tcon->id << shift);
return 0;
}
static const struct sun4i_tcon_quirks sun5i_a13_quirks = {
.has_unknown_mux = true,
.has_channel_1 = true,
.set_mux = sun5i_a13_tcon_set_mux,
};
static const struct sun4i_tcon_quirks sun6i_a31_quirks = {
.has_channel_1 = true,
.needs_de_be_mux = true,
.set_mux = sun6i_tcon_set_mux,
};
static const struct sun4i_tcon_quirks sun6i_a31s_quirks = {
......
......@@ -145,10 +145,14 @@
#define SUN4I_TCON_MAX_CHANNELS 2
struct sun4i_tcon;
struct sun4i_tcon_quirks {
bool has_unknown_mux; /* sun5i has undocumented mux */
bool has_channel_1; /* a33 does not have channel 1 */
bool needs_de_be_mux; /* sun6i needs mux to select backend */
/* callback to handle tcon muxing options */
int (*set_mux)(struct sun4i_tcon *, struct drm_encoder *);
};
struct sun4i_tcon {
......
......@@ -97,8 +97,6 @@ struct vc4_dpi {
struct drm_encoder *encoder;
struct drm_connector *connector;
struct drm_bridge *bridge;
bool is_panel_bridge;
void __iomem *regs;
......@@ -251,10 +249,11 @@ static int vc4_dpi_init_bridge(struct vc4_dpi *dpi)
{
struct device *dev = &dpi->pdev->dev;
struct drm_panel *panel;
struct drm_bridge *bridge;
int ret;
ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
&panel, &dpi->bridge);
&panel, &bridge);
if (ret) {
/* If nothing was connected in the DT, that's not an
* error.
......@@ -265,13 +264,10 @@ static int vc4_dpi_init_bridge(struct vc4_dpi *dpi)
return ret;
}
if (panel) {
dpi->bridge = drm_panel_bridge_add(panel,
DRM_MODE_CONNECTOR_DPI);
dpi->is_panel_bridge = true;
}
if (panel)
bridge = drm_panel_bridge_add(panel, DRM_MODE_CONNECTOR_DPI);
return drm_bridge_attach(dpi->encoder, dpi->bridge, NULL);
return drm_bridge_attach(dpi->encoder, bridge, NULL);
}
static int vc4_dpi_bind(struct device *dev, struct device *master, void *data)
......@@ -352,8 +348,7 @@ static void vc4_dpi_unbind(struct device *dev, struct device *master,
struct vc4_dev *vc4 = to_vc4_dev(drm);
struct vc4_dpi *dpi = dev_get_drvdata(dev);
if (dpi->is_panel_bridge)
drm_panel_bridge_remove(dpi->bridge);
drm_of_panel_bridge_remove(dev->of_node, 0, 0);
drm_encoder_cleanup(dpi->encoder);
......
......@@ -262,6 +262,10 @@ enum {
#define MHL_RAPK_UNSUPPORTED 0x02 /* Rcvd RAP action code not supported */
#define MHL_RAPK_BUSY 0x03 /* Responder too busy to respond */
/* Bit masks for RCP messages */
#define MHL_RCP_KEY_RELEASED_MASK 0x80
#define MHL_RCP_KEY_ID_MASK 0x7F
/*
* Error status codes for RCPE messages
*/
......
......@@ -585,12 +585,12 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_oldnew_connector_in_state(__state, connector, old_connector_state, new_connector_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->num_connector && \
(__i) < (__state)->num_connector; \
(__i)++) \
for_each_if ((__state)->connectors[__i].ptr && \
((connector) = (__state)->connectors[__i].ptr, \
(old_connector_state) = (__state)->connectors[__i].old_state, \
(new_connector_state) = (__state)->connectors[__i].new_state, 1); \
(__i)++) \
for_each_if (connector)
(new_connector_state) = (__state)->connectors[__i].new_state, 1))
/**
* for_each_old_connector_in_state - iterate over all connectors in an atomic update
......@@ -606,11 +606,11 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_old_connector_in_state(__state, connector, old_connector_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->num_connector && \
((connector) = (__state)->connectors[__i].ptr, \
(old_connector_state) = (__state)->connectors[__i].old_state, 1); \
(__i) < (__state)->num_connector; \
(__i)++) \
for_each_if (connector)
for_each_if ((__state)->connectors[__i].ptr && \
((connector) = (__state)->connectors[__i].ptr, \
(old_connector_state) = (__state)->connectors[__i].old_state, 1))
/**
* for_each_new_connector_in_state - iterate over all connectors in an atomic update
......@@ -626,11 +626,11 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_new_connector_in_state(__state, connector, new_connector_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->num_connector && \
((connector) = (__state)->connectors[__i].ptr, \
(new_connector_state) = (__state)->connectors[__i].new_state, 1); \
(__i) < (__state)->num_connector; \
(__i)++) \
for_each_if (connector)
for_each_if ((__state)->connectors[__i].ptr && \
((connector) = (__state)->connectors[__i].ptr, \
(new_connector_state) = (__state)->connectors[__i].new_state, 1))
/**
* for_each_oldnew_crtc_in_state - iterate over all CRTCs in an atomic update
......@@ -646,12 +646,12 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_oldnew_crtc_in_state(__state, crtc, old_crtc_state, new_crtc_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_crtc && \
(__i) < (__state)->dev->mode_config.num_crtc; \
(__i)++) \
for_each_if ((__state)->crtcs[__i].ptr && \
((crtc) = (__state)->crtcs[__i].ptr, \
(old_crtc_state) = (__state)->crtcs[__i].old_state, \
(new_crtc_state) = (__state)->crtcs[__i].new_state, 1); \
(__i)++) \
for_each_if (crtc)
(new_crtc_state) = (__state)->crtcs[__i].new_state, 1))
/**
* for_each_old_crtc_in_state - iterate over all CRTCs in an atomic update
......@@ -666,11 +666,11 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_old_crtc_in_state(__state, crtc, old_crtc_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_crtc && \
((crtc) = (__state)->crtcs[__i].ptr, \
(old_crtc_state) = (__state)->crtcs[__i].old_state, 1); \
(__i) < (__state)->dev->mode_config.num_crtc; \
(__i)++) \
for_each_if (crtc)
for_each_if ((__state)->crtcs[__i].ptr && \
((crtc) = (__state)->crtcs[__i].ptr, \
(old_crtc_state) = (__state)->crtcs[__i].old_state, 1))
/**
* for_each_new_crtc_in_state - iterate over all CRTCs in an atomic update
......@@ -685,11 +685,11 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_new_crtc_in_state(__state, crtc, new_crtc_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_crtc && \
((crtc) = (__state)->crtcs[__i].ptr, \
(new_crtc_state) = (__state)->crtcs[__i].new_state, 1); \
(__i) < (__state)->dev->mode_config.num_crtc; \
(__i)++) \
for_each_if (crtc)
for_each_if ((__state)->crtcs[__i].ptr && \
((crtc) = (__state)->crtcs[__i].ptr, \
(new_crtc_state) = (__state)->crtcs[__i].new_state, 1))
/**
* for_each_oldnew_plane_in_state - iterate over all planes in an atomic update
......@@ -705,12 +705,12 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_oldnew_plane_in_state(__state, plane, old_plane_state, new_plane_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_total_plane && \
((plane) = (__state)->planes[__i].ptr, \
(old_plane_state) = (__state)->planes[__i].old_state, \
(new_plane_state) = (__state)->planes[__i].new_state, 1); \
(__i) < (__state)->dev->mode_config.num_total_plane; \
(__i)++) \
for_each_if (plane)
for_each_if ((__state)->planes[__i].ptr && \
((plane) = (__state)->planes[__i].ptr, \
(old_plane_state) = (__state)->planes[__i].old_state,\
(new_plane_state) = (__state)->planes[__i].new_state, 1))
/**
* for_each_old_plane_in_state - iterate over all planes in an atomic update
......@@ -725,12 +725,11 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_old_plane_in_state(__state, plane, old_plane_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_total_plane && \
((plane) = (__state)->planes[__i].ptr, \
(old_plane_state) = (__state)->planes[__i].old_state, 1); \
(__i) < (__state)->dev->mode_config.num_total_plane; \
(__i)++) \
for_each_if (plane)
for_each_if ((__state)->planes[__i].ptr && \
((plane) = (__state)->planes[__i].ptr, \
(old_plane_state) = (__state)->planes[__i].old_state, 1))
/**
* for_each_new_plane_in_state - iterate over all planes in an atomic update
* @__state: &struct drm_atomic_state pointer
......@@ -744,11 +743,11 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
*/
#define for_each_new_plane_in_state(__state, plane, new_plane_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_total_plane && \
((plane) = (__state)->planes[__i].ptr, \
(new_plane_state) = (__state)->planes[__i].new_state, 1); \
(__i) < (__state)->dev->mode_config.num_total_plane; \
(__i)++) \
for_each_if (plane)
for_each_if ((__state)->planes[__i].ptr && \
((plane) = (__state)->planes[__i].ptr, \
(new_plane_state) = (__state)->planes[__i].new_state, 1))
/**
* for_each_oldnew_private_obj_in_state - iterate over all private objects in an atomic update
......@@ -768,8 +767,7 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
((obj) = (__state)->private_objs[__i].ptr, \
(old_obj_state) = (__state)->private_objs[__i].old_state, \
(new_obj_state) = (__state)->private_objs[__i].new_state, 1); \
(__i)++) \
for_each_if (obj)
(__i)++)
/**
* for_each_old_private_obj_in_state - iterate over all private objects in an atomic update
......@@ -787,8 +785,7 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
(__i) < (__state)->num_private_objs && \
((obj) = (__state)->private_objs[__i].ptr, \
(old_obj_state) = (__state)->private_objs[__i].old_state, 1); \
(__i)++) \
for_each_if (obj)
(__i)++)
/**
* for_each_new_private_obj_in_state - iterate over all private objects in an atomic update
......@@ -806,8 +803,7 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p);
(__i) < (__state)->num_private_objs && \
((obj) = (__state)->private_objs[__i].ptr, \
(new_obj_state) = (__state)->private_objs[__i].new_state, 1); \
(__i)++) \
for_each_if (obj)
(__i)++)
/**
* drm_atomic_crtc_needs_modeset - compute combined modeset need
......
......@@ -29,6 +29,8 @@ int drm_of_find_panel_or_bridge(const struct device_node *np,
int port, int endpoint,
struct drm_panel **panel,
struct drm_bridge **bridge);
int drm_of_panel_bridge_remove(const struct device_node *np,
int port, int endpoint);
#else
static inline uint32_t drm_of_find_possible_crtcs(struct drm_device *dev,
struct device_node *port)
......@@ -65,6 +67,12 @@ static inline int drm_of_find_panel_or_bridge(const struct device_node *np,
{
return -EINVAL;
}
static inline int drm_of_panel_bridge_remove(const struct device_node *np,
int port, int endpoint)
{
return -EINVAL;
}
#endif
static inline int drm_of_encoder_active_endpoint_id(struct device_node *node,
......
......@@ -248,9 +248,12 @@ dma_fence_get_rcu_safe(struct dma_fence * __rcu *fencep)
struct dma_fence *fence;
fence = rcu_dereference(*fencep);
if (!fence || !dma_fence_get_rcu(fence))
if (!fence)
return NULL;
if (!dma_fence_get_rcu(fence))
continue;
/* The atomic_inc_not_zero() inside dma_fence_get_rcu()
* provides a full memory barrier upon success (such as now).
* This is paired with the write barrier from assigning
......
......@@ -139,6 +139,45 @@ struct reg_sequence {
pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
})
/**
* regmap_field_read_poll_timeout - Poll until a condition is met or timeout
*
* @field: Regmap field to read from
* @val: Unsigned integer variable to read the value into
* @cond: Break condition (usually involving @val)
* @sleep_us: Maximum time to sleep between reads in us (0
* tight-loops). Should be less than ~20ms since usleep_range
* is used (see Documentation/timers/timers-howto.txt).
* @timeout_us: Timeout in us, 0 means never timeout
*
* Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read
* error return value in case of a error read. In the two former cases,
* the last read value at @addr is stored in @val. Must not be called
* from atomic context if sleep_us or timeout_us are used.
*
* This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
*/
#define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \
({ \
ktime_t timeout = ktime_add_us(ktime_get(), timeout_us); \
int pollret; \
might_sleep_if(sleep_us); \
for (;;) { \
pollret = regmap_field_read((field), &(val)); \
if (pollret) \
break; \
if (cond) \
break; \
if (timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \
pollret = regmap_field_read((field), &(val)); \
break; \
} \
if (sleep_us) \
usleep_range((sleep_us >> 2) + 1, sleep_us); \
} \
pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
})
#ifdef CONFIG_REGMAP
enum regmap_endian {
......
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