sh: dma: Correct the number of DMA channels for SH7709

According to the hardware manual [1], the DMAC found in the SH7709 SoC
features only 4 channels. While at it, also sort the existing targets.

[1] https://www.renesas.com/us/en/document/mah/sh7709s-group-hardware-manual (p. 373)

Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/20230527164452.64797-4-contact@artur-rojek.eu
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig
index 7d54f28..08d937a 100644 (file)
--- a/arch/sh/drivers/dma/Kconfig
+++ b/arch/sh/drivers/dma/Kconfig
@@ -28,17 +28,19 @@ config SH_DMA_API
 config NR_ONCHIP_DMA_CHANNELS
        int
        depends on SH_DMA
-       default "4" if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
-                      CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091
+       default "4" if CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750  || \
+                      CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7751 || \
+                      CPU_SUBTYPE_SH7091
        default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \
                       CPU_SUBTYPE_SH7760
-       default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780  || \
-                       CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7724
+       default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7724  || \
+                       CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
        default "6"
        help
          This allows you to specify the number of channels that the on-chip
-         DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the
-         SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6.
+         DMAC supports. This will be 4 for SH7709/SH7750/SH7750S/SH7751/SH7091,
+         8 for SH7750R/SH7751R/SH7760, and 12 for SH7723/SH7724/SH7780/SH7785.
+         Default is 6.
 
 config SH_DMABRG
        bool "SH7760 DMABRG support"