diff options
Diffstat (limited to 'drivers/soc/amlogic')
| -rw-r--r-- | drivers/soc/amlogic/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/soc/amlogic/Makefile | 1 | ||||
| -rw-r--r-- | drivers/soc/amlogic/meson-canvas.c | 14 |
3 files changed, 15 insertions, 1 deletions
diff --git a/drivers/soc/amlogic/Kconfig b/drivers/soc/amlogic/Kconfig index 5501ad5650b2..23bfb8ef4fdb 100644 --- a/drivers/soc/amlogic/Kconfig +++ b/drivers/soc/amlogic/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only menu "Amlogic SoC drivers" config MESON_CANVAS diff --git a/drivers/soc/amlogic/Makefile b/drivers/soc/amlogic/Makefile index bf2d109f61e9..f2e4ed171297 100644 --- a/drivers/soc/amlogic/Makefile +++ b/drivers/soc/amlogic/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only obj-$(CONFIG_MESON_CANVAS) += meson-canvas.o obj-$(CONFIG_MESON_CLK_MEASURE) += meson-clk-measure.o obj-$(CONFIG_MESON_GX_SOCINFO) += meson-gx-socinfo.o diff --git a/drivers/soc/amlogic/meson-canvas.c b/drivers/soc/amlogic/meson-canvas.c index be95a37c3fec..c655f5f92b12 100644 --- a/drivers/soc/amlogic/meson-canvas.c +++ b/drivers/soc/amlogic/meson-canvas.c @@ -35,6 +35,7 @@ struct meson_canvas { void __iomem *reg_base; spinlock_t lock; /* canvas device lock */ u8 used[NUM_CANVAS]; + bool supports_endianness; }; static void canvas_write(struct meson_canvas *canvas, u32 reg, u32 val) @@ -86,6 +87,12 @@ int meson_canvas_config(struct meson_canvas *canvas, u8 canvas_index, { unsigned long flags; + if (endian && !canvas->supports_endianness) { + dev_err(canvas->dev, + "Endianness is not supported on this SoC\n"); + return -EINVAL; + } + spin_lock_irqsave(&canvas->lock, flags); if (!canvas->used[canvas_index]) { dev_err(canvas->dev, @@ -172,6 +179,8 @@ static int meson_canvas_probe(struct platform_device *pdev) if (IS_ERR(canvas->reg_base)) return PTR_ERR(canvas->reg_base); + canvas->supports_endianness = of_device_get_match_data(dev); + canvas->dev = dev; spin_lock_init(&canvas->lock); dev_set_drvdata(dev, canvas); @@ -180,7 +189,10 @@ static int meson_canvas_probe(struct platform_device *pdev) } static const struct of_device_id canvas_dt_match[] = { - { .compatible = "amlogic,canvas" }, + { .compatible = "amlogic,meson8-canvas", .data = (void *)false, }, + { .compatible = "amlogic,meson8b-canvas", .data = (void *)false, }, + { .compatible = "amlogic,meson8m2-canvas", .data = (void *)false, }, + { .compatible = "amlogic,canvas", .data = (void *)true, }, {} }; MODULE_DEVICE_TABLE(of, canvas_dt_match); |