linux-kernel - [RFC][PATCH 1/4] drivers: sram: Have sram driver probe children nodes

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Date:	Wed,  3 Aug 2016 16:05:20 -0700
From:	John Stultz <john.stultz@...aro.org>
To:	lkml <linux-kernel@...r.kernel.org>
Cc:	John Stultz <john.stultz@...aro.org>,
	Andy Yan <andy.yan@...k-chips.com>,
	Rob Herring <robh@...nel.org>, Arnd Bergmann <arnd@...db.de>,
	Thierry Reding <treding@...dia.com>,
	Heiko Stübner <heiko@...ech.de>,
	Caesar Wang <wxt@...k-chips.com>,
	Kees Cook <keescook@...omium.org>,
	Guodong Xu <guodong.xu@...aro.org>,
	Haojian Zhuang <haojian.zhuang@...aro.org>,
	Vishal Bhoj <vishal.bhoj@...aro.org>,
	Bjorn Andersson <bjorn.andersson@...aro.org>,
	devicetree@...r.kernel.org,
	Android Kernel Team <kernel-team@...roid.com>
Subject: [RFC][PATCH 1/4] drivers: sram: Have sram driver probe children nodes

In order to support sub-nodes with the sram driver,
have the sram driver call of_probe_default_children().

This will allow for supportting sram based reboot reasons.

Cc: Andy Yan <andy.yan@...k-chips.com>
Cc: Rob Herring <robh@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>
Cc: Thierry Reding <treding@...dia.com>
Cc: Heiko Stübner <heiko@...ech.de>
Cc: Caesar Wang <wxt@...k-chips.com>
Cc: Kees Cook <keescook@...omium.org>
Cc: Guodong Xu <guodong.xu@...aro.org>
Cc: Haojian Zhuang <haojian.zhuang@...aro.org>
Cc: Vishal Bhoj <vishal.bhoj@...aro.org>
Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
Cc: devicetree@...r.kernel.org
Cc: Android Kernel Team <kernel-team@...roid.com>
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
 drivers/misc/sram.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/misc/sram.c b/drivers/misc/sram.c
index f84b53d..6830a79 100644
--- a/drivers/misc/sram.c
+++ b/drivers/misc/sram.c
@@ -23,6 +23,7 @@
 #include <linux/io.h>
 #include <linux/list_sort.h>
 #include <linux/of_address.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
@@ -384,6 +385,8 @@ static int sram_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, sram);
 
+	of_platform_default_populate(pdev->dev.of_node,
+						NULL, &pdev->dev);
 	dev_dbg(sram->dev, "SRAM pool: %zu KiB @ 0x%p\n",
 		gen_pool_size(sram->pool) / 1024, sram->virt_base);
 
-- 
1.9.1