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[PATCH v3 2/3] memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name()

From Bartosz Golaszewski <bgolaszewski@baylibre.com>
Newsgroups linux.kernel
Subject [PATCH v3 2/3] memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name()
Date 2016-11-23 12:10 +0100
Message-ID <sGDB8-45R-13@gated-at.bofh.it> (permalink)
References <sGDB8-45R-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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In order to avoid a section mismatch use a locally implemented routine
instead of of_flat_dt_get_machine_name() when printing the error
message.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
 drivers/memory/da8xx-ddrctl.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/drivers/memory/da8xx-ddrctl.c b/drivers/memory/da8xx-ddrctl.c
index a20e7bb..1b962ee 100644
--- a/drivers/memory/da8xx-ddrctl.c
+++ b/drivers/memory/da8xx-ddrctl.c
@@ -14,7 +14,6 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
-#include <linux/of_fdt.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
 
@@ -71,6 +70,26 @@ static const struct da8xx_ddrctl_board_settings da8xx_ddrctl_board_confs[] = {
 	},
 };
 
+/*
+ * FIXME Remove this function once of/base gets a general routine for getting
+ * the machine model/compatible string.
+ */
+static const char *da8xx_ddrctl_machine_get_compatible(void)
+{
+	struct device_node *root;
+	const char *compatible;
+	int ret = -1;
+
+	root = of_find_node_by_path("/");
+	if (root) {
+		ret = of_property_read_string_index(root, "compatible",
+						    0, &compatible);
+		of_node_put(root);
+	}
+
+	return ret ? NULL : compatible;
+}
+
 static const struct da8xx_ddrctl_config_knob *
 da8xx_ddrctl_match_knob(const struct da8xx_ddrctl_setting *setting)
 {
@@ -118,7 +137,7 @@ static int da8xx_ddrctl_probe(struct platform_device *pdev)
 	setting = da8xx_ddrctl_get_board_settings();
 	if (!setting) {
 		dev_err(dev, "no settings for board '%s'\n",
-			of_flat_dt_get_machine_name());
+			da8xx_ddrctl_machine_get_compatible());
 		return -EINVAL;
 	}
 
-- 
2.9.3

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Thread

[PATCH v3 0/3] da8xx: fix section mismatch in new drivers Bartosz Golaszewski <bgolaszewski@baylibre.com> - 2016-11-23 12:10 +0100
  [PATCH v3 2/3] memory: da8xx-ddrctl: drop the call to of_flat_dt_get_machine_name() Bartosz Golaszewski <bgolaszewski@baylibre.com> - 2016-11-23 12:10 +0100
  [PATCH v3 1/3] bus: da8xx-mstpri: drop the call to of_flat_dt_get_machine_name() Bartosz Golaszewski <bgolaszewski@baylibre.com> - 2016-11-23 12:10 +0100
    Re: [PATCH v3 1/3] bus: da8xx-mstpri: drop the call to  of_flat_dt_get_machine_name() Sekhar Nori <nsekhar@ti.com> - 2016-11-23 13:30 +0100
  [PATCH v3 3/3] bus: da8xx-mstpri: fix a typo Bartosz Golaszewski <bgolaszewski@baylibre.com> - 2016-11-23 12:10 +0100

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