[PATCH v3 12/16] power: supply: olpc_battery: Use DT to get battery version

From: Lubomir Rintel
Date: Mon Jan 07 2019 - 13:35:54 EST


Avoid using the x86 OLPC platform specific call to get the board
version. That wouldn't work on FDT-based ARM MMP2 platform.

Add the XO 1.5 compatible string too. This is actually not completely
necessary as the battery nodes on XO 1.5 claim to be compatible with
"olpc,xo1-battery", but there are, in fact, differencies.

Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>

---
Changes since v2:
- Clarify the XO 1 compatibility in the commit message.

Changes since v1:
- Sort the new include a bit higher

drivers/power/supply/olpc_battery.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/power/supply/olpc_battery.c b/drivers/power/supply/olpc_battery.c
index 5a97e42a3547..5323987d9284 100644
--- a/drivers/power/supply/olpc_battery.c
+++ b/drivers/power/supply/olpc_battery.c
@@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/err.h>
#include <linux/device.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <linux/jiffies.h>
@@ -622,11 +623,13 @@ static int olpc_battery_probe(struct platform_device *pdev)
olpc_ac = power_supply_register(&pdev->dev, &olpc_ac_desc, NULL);
if (IS_ERR(olpc_ac))
return PTR_ERR(olpc_ac);
-
- if (olpc_board_at_least(olpc_board_pre(0xd0))) { /* XO-1.5 */
+ if (of_property_match_string(pdev->dev.of_node, "compatible",
+ "olpc,xo1.5-battery") >= 0) {
+ /* XO-1.5 */
olpc_bat_desc.properties = olpc_xo15_bat_props;
olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo15_bat_props);
- } else { /* XO-1 */
+ } else {
+ /* XO-1 */
olpc_bat_desc.properties = olpc_xo1_bat_props;
olpc_bat_desc.num_properties = ARRAY_SIZE(olpc_xo1_bat_props);
}
@@ -672,6 +675,7 @@ static int olpc_battery_remove(struct platform_device *pdev)

static const struct of_device_id olpc_battery_ids[] = {
{ .compatible = "olpc,xo1-battery" },
+ { .compatible = "olpc,xo1.5-battery" },
{}
};
MODULE_DEVICE_TABLE(of, olpc_battery_ids);
--
2.20.1