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Subject[PATCH 2/8 v4] ARM OMAP2+ GPMC: add bus children
Date
This patch adds support for spawning buses as children of the GPMC.

Signed-off-by: Robert ABEL <rabel@cit-ec.uni-bielefeld.de>
---
drivers/memory/omap-gpmc.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/memory/omap-gpmc.c b/drivers/memory/omap-gpmc.c
index 5cabac8..74a8c52 100644
--- a/drivers/memory/omap-gpmc.c
+++ b/drivers/memory/omap-gpmc.c
@@ -27,6 +27,7 @@
#include <linux/of_address.h>
#include <linux/of_mtd.h>
#include <linux/of_device.h>
+#include <linux/of_platform.h>
#include <linux/omap-gpmc.h>
#include <linux/mtd/nand.h>
#include <linux/pm_runtime.h>
@@ -1800,8 +1801,20 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
gpmc_cs_enable_mem(cs);

no_timings:
- if (of_platform_device_create(child, NULL, &pdev->dev))
- return 0;
+
+ /* create platform device, NULL on error or when disabled */
+ if (!of_platform_device_create(child, NULL, &pdev->dev))
+ goto err_child_fail;
+
+ /* is child a common bus? */
+ if (of_match_node(of_default_bus_match_table, child))
+ /* create children and other common bus children */
+ if (of_platform_populate(child, of_default_bus_match_table, NULL, &pdev->dev))
+ goto err_child_fail;
+
+ return 0;
+
+err_child_fail:

dev_err(&pdev->dev, "failed to create gpmc child %s\n", child->name);
ret = -ENODEV;
--
2.3.0


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