u-boot/arch/arm/dts/stm32mp157c-ev1-u-boot.dtsi
Patrick Delaunay 754815b854 video: stm32: remove the compatible "synopsys, dw-mipi-dsi" support
Remove the compatible "synopsys,dw-mipi-dsi" added in U-Boot
(it don't exist in Linux kernel binding); it is only used
to bind the generic synopsys UCLASS_DSI_HOST "dw_mipi_dsi" to
the driver "stm32-display-dsi" UCLASS_VIDEO_BRIDGE

This binding is done in Linux kernel drivers without compatible
(dw_mipi_dsi_bind() is called in bind of driver, for example in
drivers/gpu/drm/rockchip/dw-mipi-dsi-rockchip.c).

This patch does the same in U-Boot driver, the STM32 driver
calls during its bind the function device_bind_driver_to_node
to bind the generic driver "dw_mipi_dsi" at the same address.

This patch reduces the device tree differences
between Linux kernel and U-Boot for stm32mp1 platform.

Tested with v2020.01-rc1 on STM32MP157C-EV1 and STM32MP157C-DK2.

The dependency of driver is clearer and the probe order is guaranteed.

STM32MP> dm tree
 Class     Index  Probed  Driver                Name
-----------------------------------------------------------
 root          0  [ + ]   root_driver           root_driver
 sysreset      0  [   ]   syscon_reboot         |-- reboot
 simple_bus    0  [ + ]   generic_simple_bus    |-- soc
 serial        0  [ + ]   serial_stm32          |   |-- serial@40010000
...
 video_brid    0  [ + ]   stm32-display-dsi     |   |-- dsi@5a000000
 dsi_host      0  [ + ]   dw_mipi_dsi           |   |   |-- dsihost
 panel         0  [ + ]   rm68200_panel         |   |   `-- panel-dsi@0
...

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-11-12 16:15:53 +01:00

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Text

// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright : STMicroelectronics 2018
*/
#include "stm32mp157c-ed1-u-boot.dtsi"
/ {
aliases {
gpio26 = &stmfx_pinctrl;
i2c1 = &i2c2;
i2c4 = &i2c5;
pinctrl2 = &stmfx_pinctrl;
spi0 = &qspi;
usb0 = &usbotg_hs;
};
};
&flash0 {
u-boot,dm-spl;
};
&qspi {
u-boot,dm-spl;
};
&qspi_clk_pins_a {
u-boot,dm-spl;
pins {
u-boot,dm-spl;
};
};
&qspi_bk1_pins_a {
u-boot,dm-spl;
pins1 {
u-boot,dm-spl;
};
pins2 {
u-boot,dm-spl;
};
};
&qspi_bk2_pins_a {
u-boot,dm-spl;
pins1 {
u-boot,dm-spl;
};
pins2 {
u-boot,dm-spl;
};
};