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author | 2018-08-23 13:52:46 -0700 | |
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committer | 2018-08-23 13:52:46 -0700 | |
commit | f3ea496213819c80ce9c49a9b65f9261da713d11 (patch) | |
tree | 1c8fad9c5c609504c2916ad3844494093f89f8f1 /drivers/bus/sun50i-de2.c | |
parent | Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc (diff) | |
parent | Merge tag 'v4.18-next-soc' of https://git.kernel.org/pub/scm/linux/kernel/git/matthias.bgg/linux into next/drivers (diff) | |
download | linux-dev-f3ea496213819c80ce9c49a9b65f9261da713d11.tar.xz linux-dev-f3ea496213819c80ce9c49a9b65f9261da713d11.zip |
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Some of the larger changes this merge window:
- Removal of drivers for Exynos5440, a Samsung SoC that never saw
widespread use.
- Uniphier support for USB3 and SPI reset handling
- Syste control and SRAM drivers and bindings for Allwinner platforms
- Qualcomm AOSS (Always-on subsystem) reset controller drivers
- Raspberry Pi hwmon driver for voltage
- Mediatek pwrap (pmic) support for MT6797 SoC"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (52 commits)
drivers/firmware: psci_checker: stash and use topology_core_cpumask for hotplug tests
soc: fsl: cleanup Kconfig menu
soc: fsl: dpio: Convert DPIO documentation to .rst
staging: fsl-mc: Remove remaining files
staging: fsl-mc: Move DPIO from staging to drivers/soc/fsl
staging: fsl-dpaa2: eth: move generic FD defines to DPIO
soc: fsl: qe: gpio: Add qe_gpio_set_multiple
usb: host: exynos: Remove support for Exynos5440
clk: samsung: Remove support for Exynos5440
soc: sunxi: Add the A13, A23 and H3 system control compatibles
reset: uniphier: add reset control support for SPI
cpufreq: exynos: Remove support for Exynos5440
ata: ahci-platform: Remove support for Exynos5440
soc: imx6qp: Use GENPD_FLAG_ALWAYS_ON for PU errata
soc: mediatek: pwrap: add mt6351 driver for mt6797 SoCs
soc: mediatek: pwrap: add pwrap driver for mt6797 SoCs
soc: mediatek: pwrap: fix cipher init setting error
dt-bindings: pwrap: mediatek: add pwrap support for MT6797
reset: uniphier: add USB3 core reset control
dt-bindings: reset: uniphier: add USB3 core reset support
...
Diffstat (limited to 'drivers/bus/sun50i-de2.c')
-rw-r--r-- | drivers/bus/sun50i-de2.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/bus/sun50i-de2.c b/drivers/bus/sun50i-de2.c new file mode 100644 index 000000000000..672518741f86 --- /dev/null +++ b/drivers/bus/sun50i-de2.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Allwinner A64 Display Engine 2.0 Bus Driver + * + * Copyright (C) 2018 Icenowy Zheng <icenowy@aosc.io> + */ + +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/soc/sunxi/sunxi_sram.h> + +static int sun50i_de2_bus_probe(struct platform_device *pdev) +{ + struct device_node *np = pdev->dev.of_node; + int ret; + + ret = sunxi_sram_claim(&pdev->dev); + if (ret) { + dev_err(&pdev->dev, "Error couldn't map SRAM to device\n"); + return ret; + } + + of_platform_populate(np, NULL, NULL, &pdev->dev); + + return 0; +} + +static int sun50i_de2_bus_remove(struct platform_device *pdev) +{ + sunxi_sram_release(&pdev->dev); + return 0; +} + +static const struct of_device_id sun50i_de2_bus_of_match[] = { + { .compatible = "allwinner,sun50i-a64-de2", }, + { /* sentinel */ } +}; + +static struct platform_driver sun50i_de2_bus_driver = { + .probe = sun50i_de2_bus_probe, + .remove = sun50i_de2_bus_remove, + .driver = { + .name = "sun50i-de2-bus", + .of_match_table = sun50i_de2_bus_of_match, + }, +}; + +builtin_platform_driver(sun50i_de2_bus_driver); |