Some models require some special handling, e.g. one q8 tablet I've needs
esp,crystal-26M-en = <1> in the sdio_wifi dt node for the wifi to work
properly.
Add a q8_hardwaremgr_apply_quirks() helper function which identifies the
tablet based on the detected soc, touchscreen, accelerometer combo and
applies model specific quirks where necessary.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/misc/q8-hardwaremgr.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/drivers/misc/q8-hardwaremgr.c b/drivers/misc/q8-hardwaremgr.c
index 95cdaf2..cbf4f61 100644
--- a/drivers/misc/q8-hardwaremgr.c
+++ b/drivers/misc/q8-hardwaremgr.c
@@ -715,6 +715,28 @@ static void q8_hardwaremgr_apply_accelerometer(struct q8_hardwaremgr_data *data)
of_node_put(np);
}
+static void q8_hardwaremgr_apply_quirks(struct q8_hardwaremgr_data *data)
+{
+ struct device_node *np;
+ struct of_changeset cset;
+
+ /* This A33 tzx-723q4 PCB tablet with esp8089 needs crystal_26M_en=1 */
+ if (data->soc == a33 && data->touchscreen.model == gsl1680_b482 &&
+ data->accelerometer.model == dmard09 && !data->has_rda599x) {
+ dev_info(data->dev, "Applying crystal_26M_en=1 sdio_wifi quirk\n");
+ np = of_find_node_by_name(of_root, "sdio_wifi");
+ if (!np) {
+ dev_warn(data->dev, "Could not find sdio_wifi dt node\n");
+ return;
+ }
+ of_changeset_init(&cset);
+ of_changeset_add_property_u32(&cset, np,
+ "esp,crystal-26M-en", 1);
+ of_changeset_apply(&cset);
+ of_node_put(np);
+ }
+}
+
static int q8_hardwaremgr_do_probe(struct q8_hardwaremgr_data *data,
struct q8_hardwaremgr_device *dev,
const char *prefix, bus_probe_func func)
@@ -846,6 +868,7 @@ static int q8_hardwaremgr_probe(struct platform_device *pdev)
q8_hardwaremgr_apply_touchscreen(data);
q8_hardwaremgr_apply_accelerometer(data);
+ q8_hardwaremgr_apply_quirks(data);
error:
kfree(data);
--
2.9.3
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