dmaengine: ipu: Remove the driver

The i.MX3 IPU driver does not support devicetree and i.MX has been converted
to a DT-only platform since kernel 5.10.

As there is no user for this driver anymore, just remove it.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20230729192945.1217206-1-festevam@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Author: Fabio Estevam

drivers/dma/Kconfig

@@ -472,25 +472,6 @@ config MXS_DMA
 	  Support the MXS DMA engine. This engine including APBH-DMA
 	  and APBX-DMA is integrated into some Freescale chips.
 
-config MX3_IPU
-	bool "MX3x Image Processing Unit support"
-	depends on ARCH_MXC
-	select DMA_ENGINE
-	default y
-	help
-	  If you plan to use the Image Processing unit in the i.MX3x, say
-	  Y here. If unsure, select Y.
-
-config MX3_IPU_IRQS
-	int "Number of dynamically mapped interrupts for IPU"
-	depends on MX3_IPU
-	range 2 137
-	default 4
-	help
-	  Out of 137 interrupt sources on i.MX31 IPU only very few are used.
-	  To avoid bloating the irq_desc[] array we allocate a sufficient
-	  number of IRQ slots and map them dynamically to specific sources.
-
 config NBPFAXI_DMA
 	tristate "Renesas Type-AXI NBPF DMA support"
 	select DMA_ENGINE

drivers/dma/Makefile

@@ -55,7 +55,6 @@ obj-$(CONFIG_MPC512X_DMA) += mpc512x_dma.o
 obj-$(CONFIG_MV_XOR) += mv_xor.o
 obj-$(CONFIG_MV_XOR_V2) += mv_xor_v2.o
 obj-$(CONFIG_MXS_DMA) += mxs-dma.o
-obj-$(CONFIG_MX3_IPU) += ipu/
 obj-$(CONFIG_NBPFAXI_DMA) += nbpfaxi.o
 obj-$(CONFIG_OWL_DMA) += owl-dma.o
 obj-$(CONFIG_PCH_DMA) += pch_dma.o