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ARM: OMAP2+: Remove unused legacy code for DMA

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We are now booting all mach-omap2 in device tree only mode.
Any code that is only called in legacy boot mode where
of_have_populated_dt() is not set is safe to remove now.

Let's leave the dummy omap2_system_dma_init_dev() check
in place for now to avoid a pointless merge conflict with
tusb6010 dmaengine conversion as pointed out by Peter
Ujfalusi <peter.ujfalusi@ti.com>.

Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Tony Lindgren 2017-08-10 08:21:40 -07:00
parent 5771a8c088
commit 0278bad18e
1 changed files with 5 additions and 143 deletions
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148
arch/arm/mach-omap2/dma.c
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@ -204,61 +204,6 @@ static unsigned configure_dma_errata(void)
return errata;
}
static const struct dma_slave_map omap24xx_sdma_map[] = {
{ "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
{ "omap-aes", "tx", SDMA_FILTER_PARAM(9) },
{ "omap-aes", "rx", SDMA_FILTER_PARAM(10) },
{ "omap-sham", "rx", SDMA_FILTER_PARAM(13) },
{ "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
{ "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
{ "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
{ "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
{ "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
{ "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
{ "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
{ "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
{ "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
{ "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
{ "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
{ "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
{ "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
{ "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
{ "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
{ "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
{ "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
{ "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
{ "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
{ "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
{ "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
{ "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
{ "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
{ "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
{ "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
{ "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
{ "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
{ "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
{ "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
{ "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
{ "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
{ "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
{ "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
{ "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
{ "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
{ "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
{ "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
{ "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
{ "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
{ "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
/* external DMA requests when tusb6010 is used */
{ "musb-tusb", "dmareq0", SDMA_FILTER_PARAM(2) },
{ "musb-tusb", "dmareq1", SDMA_FILTER_PARAM(3) },
{ "musb-tusb", "dmareq2", SDMA_FILTER_PARAM(14) }, /* OMAP2420 only */
{ "musb-tusb", "dmareq3", SDMA_FILTER_PARAM(15) }, /* OMAP2420 only */
{ "musb-tusb", "dmareq4", SDMA_FILTER_PARAM(16) }, /* OMAP2420 only */
{ "musb-tusb", "dmareq5", SDMA_FILTER_PARAM(64) }, /* OMAP2420 only */
};
static const struct dma_slave_map omap24xx_sdma_dt_map[] = {
/* external DMA requests when tusb6010 is used */
{ "musb-hdrc.1.auto", "dmareq0", SDMA_FILTER_PARAM(2) },
@ -269,61 +214,6 @@ static const struct dma_slave_map omap24xx_sdma_dt_map[] = {
{ "musb-hdrc.1.auto", "dmareq5", SDMA_FILTER_PARAM(64) }, /* OMAP2420 only */
};
static const struct dma_slave_map omap3xxx_sdma_map[] = {
{ "omap-gpmc", "rxtx", SDMA_FILTER_PARAM(4) },
{ "omap2_mcspi.2", "tx0", SDMA_FILTER_PARAM(15) },
{ "omap2_mcspi.2", "rx0", SDMA_FILTER_PARAM(16) },
{ "omap-mcbsp.3", "tx", SDMA_FILTER_PARAM(17) },
{ "omap-mcbsp.3", "rx", SDMA_FILTER_PARAM(18) },
{ "omap-mcbsp.4", "tx", SDMA_FILTER_PARAM(19) },
{ "omap-mcbsp.4", "rx", SDMA_FILTER_PARAM(20) },
{ "omap-mcbsp.5", "tx", SDMA_FILTER_PARAM(21) },
{ "omap-mcbsp.5", "rx", SDMA_FILTER_PARAM(22) },
{ "omap2_mcspi.2", "tx1", SDMA_FILTER_PARAM(23) },
{ "omap2_mcspi.2", "rx1", SDMA_FILTER_PARAM(24) },
{ "omap_i2c.3", "tx", SDMA_FILTER_PARAM(25) },
{ "omap_i2c.3", "rx", SDMA_FILTER_PARAM(26) },
{ "omap_i2c.1", "tx", SDMA_FILTER_PARAM(27) },
{ "omap_i2c.1", "rx", SDMA_FILTER_PARAM(28) },
{ "omap_i2c.2", "tx", SDMA_FILTER_PARAM(29) },
{ "omap_i2c.2", "rx", SDMA_FILTER_PARAM(30) },
{ "omap-mcbsp.1", "tx", SDMA_FILTER_PARAM(31) },
{ "omap-mcbsp.1", "rx", SDMA_FILTER_PARAM(32) },
{ "omap-mcbsp.2", "tx", SDMA_FILTER_PARAM(33) },
{ "omap-mcbsp.2", "rx", SDMA_FILTER_PARAM(34) },
{ "omap2_mcspi.0", "tx0", SDMA_FILTER_PARAM(35) },
{ "omap2_mcspi.0", "rx0", SDMA_FILTER_PARAM(36) },
{ "omap2_mcspi.0", "tx1", SDMA_FILTER_PARAM(37) },
{ "omap2_mcspi.0", "rx1", SDMA_FILTER_PARAM(38) },
{ "omap2_mcspi.0", "tx2", SDMA_FILTER_PARAM(39) },
{ "omap2_mcspi.0", "rx2", SDMA_FILTER_PARAM(40) },
{ "omap2_mcspi.0", "tx3", SDMA_FILTER_PARAM(41) },
{ "omap2_mcspi.0", "rx3", SDMA_FILTER_PARAM(42) },
{ "omap2_mcspi.1", "tx0", SDMA_FILTER_PARAM(43) },
{ "omap2_mcspi.1", "rx0", SDMA_FILTER_PARAM(44) },
{ "omap2_mcspi.1", "tx1", SDMA_FILTER_PARAM(45) },
{ "omap2_mcspi.1", "rx1", SDMA_FILTER_PARAM(46) },
{ "omap_hsmmc.1", "tx", SDMA_FILTER_PARAM(47) },
{ "omap_hsmmc.1", "rx", SDMA_FILTER_PARAM(48) },
{ "omap_uart.0", "tx", SDMA_FILTER_PARAM(49) },
{ "omap_uart.0", "rx", SDMA_FILTER_PARAM(50) },
{ "omap_uart.1", "tx", SDMA_FILTER_PARAM(51) },
{ "omap_uart.1", "rx", SDMA_FILTER_PARAM(52) },
{ "omap_uart.2", "tx", SDMA_FILTER_PARAM(53) },
{ "omap_uart.2", "rx", SDMA_FILTER_PARAM(54) },
{ "omap_hsmmc.0", "tx", SDMA_FILTER_PARAM(61) },
{ "omap_hsmmc.0", "rx", SDMA_FILTER_PARAM(62) },
{ "omap-aes", "tx", SDMA_FILTER_PARAM(65) },
{ "omap-aes", "rx", SDMA_FILTER_PARAM(66) },
{ "omap-sham", "rx", SDMA_FILTER_PARAM(69) },
{ "omap2_mcspi.3", "tx0", SDMA_FILTER_PARAM(70) },
{ "omap2_mcspi.3", "rx0", SDMA_FILTER_PARAM(71) },
{ "omap_hsmmc.2", "tx", SDMA_FILTER_PARAM(77) },
{ "omap_hsmmc.2", "rx", SDMA_FILTER_PARAM(78) },
{ "omap_uart.3", "tx", SDMA_FILTER_PARAM(81) },
{ "omap_uart.3", "rx", SDMA_FILTER_PARAM(82) },
};
static struct omap_system_dma_plat_info dma_plat_info __initdata = {
.reg_map = reg_map,
.channel_stride = 0x60,
@ -352,24 +242,10 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
p.dma_attr = (struct omap_dma_dev_attr *)oh->dev_attr;
p.errata = configure_dma_errata();
if (!of_have_populated_dt()) {
if (soc_is_omap24xx()) {
p.slave_map = omap24xx_sdma_map;
p.slavecnt = ARRAY_SIZE(omap24xx_sdma_map);
} else if (soc_is_omap34xx() || soc_is_omap3630()) {
p.slave_map = omap3xxx_sdma_map;
p.slavecnt = ARRAY_SIZE(omap3xxx_sdma_map);
} else {
pr_err("%s: The legacy DMA map is not provided!\n",
__func__);
return -ENODEV;
}
} else {
if (soc_is_omap24xx()) {
/* DMA slave map for drivers not yet converted to DT */
p.slave_map = omap24xx_sdma_dt_map;
p.slavecnt = ARRAY_SIZE(omap24xx_sdma_dt_map);
}
if (soc_is_omap24xx()) {
/* DMA slave map for drivers not yet converted to DT */
p.slave_map = omap24xx_sdma_dt_map;
p.slavecnt = ARRAY_SIZE(omap24xx_sdma_dt_map);
}
pdev = omap_device_build(name, 0, oh, &p, sizeof(p));
@ -413,21 +289,7 @@ static int __init omap2_system_dma_init_dev(struct omap_hwmod *oh, void *unused)
static int __init omap2_system_dma_init(void)
{
struct platform_device *pdev;
int res;
res = omap_hwmod_for_each_by_class("dma",
return omap_hwmod_for_each_by_class("dma",
omap2_system_dma_init_dev, NULL);
if (res)
return res;
if (of_have_populated_dt())
return res;
pdev = platform_device_register_full(&omap_dma_dev_info);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
return res;
}
omap_arch_initcall(omap2_system_dma_init);