[PATCH 10/14] dmaengine: ti: omap-dma: Pass sdma auxdata to driver and use it

Tony Lindgren
2019-12-17T00:20:02Z

We can now start passing sdma auxdata to the dmaengine driver to start
removing the platform based sdma init.

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>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
arch/arm/mach-omap2/common.h | 3 +++
arch/arm/mach-omap2/dma.c | 2 +-
arch/arm/mach-omap2/pdata-quirks.c | 1 +
drivers/dma/ti/omap-dma.c | 14 +++++++++-----
4 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -345,9 +345,12 @@ static inline int dra7xx_pciess_reset(struct omap_hwmod *oh)
}
#endif

+struct omap_system_dma_plat_info;
+
void pdata_quirks_init(const struct of_device_id *);
void omap_auxdata_legacy_init(struct device *dev);
void omap_pcs_legacy_init(int irq, void (*rearm)(void));
+extern struct omap_system_dma_plat_info dma_plat_info;

struct omap_sdrc_params;
extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
diff --git a/arch/arm/mach-omap2/dma.c b/arch/arm/mach-omap2/dma.c
--- a/arch/arm/mach-omap2/dma.c
+++ b/arch/arm/mach-omap2/dma.c
@@ -217,7 +217,7 @@ static struct omap_dma_dev_attr dma_attr = {
.lch_count = 32,
};

-static struct omap_system_dma_plat_info dma_plat_info __initdata = {
+struct omap_system_dma_plat_info dma_plat_info = {
.reg_map = reg_map,
.channel_stride = 0x60,
.dma_attr = &dma_attr,
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -514,6 +514,7 @@ static struct of_dev_auxdata omap_auxdata_lookup[] = {
/* Common auxdata */
OF_DEV_AUXDATA("ti,sysc", 0, NULL, &ti_sysc_pdata),
OF_DEV_AUXDATA("pinctrl-single", 0, NULL, &pcs_pdata),
+ OF_DEV_AUXDATA("ti,omap-sdma", 0, NULL, &dma_plat_info),
{ /* sentinel */ },
};

diff --git a/drivers/dma/ti/omap-dma.c b/drivers/dma/ti/omap-dma.c
--- a/drivers/dma/ti/omap-dma.c
+++ b/drivers/dma/ti/omap-dma.c
@@ -1585,14 +1585,18 @@ static int omap_dma_probe(struct platform_device *pdev)
return PTR_ERR(od->base);

conf = of_device_get_match_data(&pdev->dev);
- if (conf)
+ if (conf) {
od->cfg = conf;
- else
+ od->plat = dev_get_platdata(&pdev->dev);
+ if (!od->plat)
+ dev_warn(&pdev->dev, "no sdma auxdata needed?\n");
+ } else {
od->cfg = &default_cfg;

- od->plat = omap_get_plat_info();
- if (!od->plat)
- return -EPROBE_DEFER;
+ od->plat = omap_get_plat_info();
+ if (!od->plat)
+ return -EPROBE_DEFER;
+ }

od->reg_map = od->plat->reg_map;

--
2.24.1