Commit f002180c authored Dec 16, 2019 by Tony Lindgren

ARM: OMAP2+: Configure sdma capabilities directly

Only earlier SoCs need to be checked for this, all SoCs starting with
omap3630 have CCDN register. This way we get closer to removing the need
to ioremap sdma registers in the platform code.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Vinod Koul <vkoul@kernel.org>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

parent 755cbfd8

arch/arm/mach-omap2/dma.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -273,10 +273,10 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod oh, void unused)
		d->dev_caps \|= HS_CHANNELS_RESERVED;

		/* Check the capabilities register for descriptor loading feature */
		if (dma_read(CAPS_0, 0) & DMA_HAS_DESCRIPTOR_CAPS)
		dma_common_ch_end = CCDN;
		else
		if (soc_is_omap24xx() \|\| soc_is_omap34xx() \|\| soc_is_am35xx())
		dma_common_ch_end = CCFN;
		else
		dma_common_ch_end = CCDN;

		return 0;
		}

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