Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/drivers/net/wireless/ti/wl18xx/io.c b/drivers/net/wireless/ti/wl18xx/io.c
new file mode 100644
index 0000000000..ce61b4bd1e
--- /dev/null
+++ b/drivers/net/wireless/ti/wl18xx/io.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This file is part of wl18xx
+ *
+ * Copyright (C) 2011 Texas Instruments
+ */
+
+#include "../wlcore/wlcore.h"
+#include "../wlcore/io.h"
+
+#include "io.h"
+
+int wl18xx_top_reg_write(struct wl1271 *wl, int addr, u16 val)
+{
+	u32 tmp;
+	int ret;
+
+	if (WARN_ON(addr % 2))
+		return -EINVAL;
+
+	if ((addr % 4) == 0) {
+		ret = wlcore_read32(wl, addr, &tmp);
+		if (ret < 0)
+			goto out;
+
+		tmp = (tmp & 0xffff0000) | val;
+		ret = wlcore_write32(wl, addr, tmp);
+	} else {
+		ret = wlcore_read32(wl, addr - 2, &tmp);
+		if (ret < 0)
+			goto out;
+
+		tmp = (tmp & 0xffff) | (val << 16);
+		ret = wlcore_write32(wl, addr - 2, tmp);
+	}
+
+out:
+	return ret;
+}
+
+int wl18xx_top_reg_read(struct wl1271 *wl, int addr, u16 *out)
+{
+	u32 val = 0;
+	int ret;
+
+	if (WARN_ON(addr % 2))
+		return -EINVAL;
+
+	if ((addr % 4) == 0) {
+		/* address is 4-bytes aligned */
+		ret = wlcore_read32(wl, addr, &val);
+		if (ret >= 0 && out)
+			*out = val & 0xffff;
+	} else {
+		ret = wlcore_read32(wl, addr - 2, &val);
+		if (ret >= 0 && out)
+			*out = (val & 0xffff0000) >> 16;
+	}
+
+	return ret;
+}