diff options
| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-11-12 15:39:58 +0100 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2019-11-12 16:15:53 +0100 |
| commit | 754815b854258abf08f50e757599e8d15c9a85bd (patch) | |
| tree | c53f8333c8c47e685229202fbf860092b95374e7 /drivers/video/stm32/stm32_dsi.c | |
| parent | ec3dcea7447031463643c33143b3a5f027f0b54d (diff) | |
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>
Diffstat (limited to 'drivers/video/stm32/stm32_dsi.c')
| -rw-r--r-- | drivers/video/stm32/stm32_dsi.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/video/stm32/stm32_dsi.c b/drivers/video/stm32/stm32_dsi.c index cb89576e1d..12895a8f5d 100644 --- a/drivers/video/stm32/stm32_dsi.c +++ b/drivers/video/stm32/stm32_dsi.c @@ -20,6 +20,7 @@ #include <asm/io.h> #include <asm/arch/gpio.h> #include <dm/device-internal.h> +#include <dm/lists.h> #include <linux/iopoll.h> #include <power/regulator.h> @@ -399,6 +400,18 @@ static int stm32_dsi_set_backlight(struct udevice *dev, int percent) return 0; } +static int stm32_dsi_bind(struct udevice *dev) +{ + int ret; + + ret = device_bind_driver_to_node(dev, "dw_mipi_dsi", "dsihost", + dev_ofnode(dev), NULL); + if (ret) + return ret; + + return dm_scan_fdt_dev(dev); +} + static int stm32_dsi_probe(struct udevice *dev) { struct stm32_dsi_priv *priv = dev_get_priv(dev); @@ -483,7 +496,7 @@ U_BOOT_DRIVER(stm32_dsi) = { .name = "stm32-display-dsi", .id = UCLASS_VIDEO_BRIDGE, .of_match = stm32_dsi_ids, - .bind = dm_scan_fdt_dev, + .bind = stm32_dsi_bind, .probe = stm32_dsi_probe, .ops = &stm32_dsi_ops, .priv_auto_alloc_size = sizeof(struct stm32_dsi_priv), |