Thread (15 messages) 15 messages, 1 author, 2012-06-26

[PATCH v6 05/13] ARM: OMAP2+: gpmc: resource creation helpers

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From: Afzal Mohammed <hidden>
Date: 2012-06-22 12:56:59
Also in: linux-omap
Subsystem: arm port, omap general purpose memory controller support, omap power management support, omap2+ support, the rest · Maintainers: Russell King, Roger Quadros, Tony Lindgren, Kevin Hilman, Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Linus Torvalds

Revision v6 of 3 in this series.

Revisions (3)
  1. v5 [diff vs current]
  2. v5 [diff vs current]
  3. v6 current
Helpers for populating given resource structure
with memory & interrupt information.

Signed-off-by: Afzal Mohammed <redacted>
---
 arch/arm/mach-omap2/gpmc.c |   45 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 08fc5df..e427ff4 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -950,6 +950,51 @@ static void __devinit gpmc_mem_init(void)
 	}
 }
 
+static __devinit int gpmc_setup_cs_mem(struct gpmc_cs_data *cs,
+						struct resource *res)
+{
+	unsigned long start;
+	int ret;
+
+	ret = gpmc_cs_request(cs->cs, cs->mem_size, &start);
+	if (IS_ERR_VALUE(ret)) {
+		dev_err(gpmc_dev, "error: gpmc request on CS: %d\n", cs->cs);
+		return ret;
+	}
+
+	res->start = start + cs->mem_offset;
+	res->end = res->start + cs->mem_size - 1;
+	res->flags = IORESOURCE_MEM;
+
+	dev_info(gpmc_dev, "memory 0x%x-0x%x on CS %d\n", res->start,
+							res->end, cs->cs);
+
+	return 0;
+}
+
+static __devinit int gpmc_setup_cs_irq(struct gpmc_cs_data *cs,
+						struct resource *res)
+{
+	int i, n;
+
+	if (!gpmc_irq || !gpmc_irq_start) {
+		if (cs->irq_config)
+			dev_err(gpmc_dev, "gpmc not able to configure irq\n");
+		return 0;
+	}
+
+	for (i = 0, n = 0; i < GPMC_NR_IRQ; i++)
+		if (gpmc_client_irq[i].bitmask & cs->irq_config) {
+			res[n].start = res[n].end = gpmc_client_irq[i].irq;
+			res[n].flags = IORESOURCE_IRQ;
+			dev_info(gpmc_dev, "irq %u on CS %d\n",
+						res[n].start, cs->cs);
+			n++;
+		}
+
+	return n;
+}
+
 static __devinit int gpmc_probe(struct platform_device *pdev)
 {
 	u32 l;
-- 
1.7.10.2
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