1 files changed, 112 insertions, 0 deletions
diff --git a/drivers/media/pci/cx23885/netup-init.c b/drivers/media/pci/cx23885/netup-init.c
new file mode 100644
index 0000000000..c653b07665
--- /dev/null
+++ b/drivers/media/pci/cx23885/netup-init.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * netup-init.c
+ *
+ * NetUP Dual DVB-S2 CI driver
+ *
+ * Copyright (C) 2009 NetUP Inc.
+ * Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
+ * Copyright (C) 2009 Abylay Ospan <aospan@netup.ru>
+ */
+
+#include "cx23885.h"
+#include "netup-init.h"
+
+static void i2c_av_write(struct i2c_adapter *i2c, u16 reg, u8 val)
+{
+	int ret;
+	u8 buf[3];
+	struct i2c_msg msg = {
+		.addr	= 0x88 >> 1,
+		.flags	= 0,
+		.buf	= buf,
+		.len	= 3
+	};
+
+	buf[0] = reg >> 8;
+	buf[1] = reg & 0xff;
+	buf[2] = val;
+
+	ret = i2c_transfer(i2c, &msg, 1);
+
+	if (ret != 1)
+		pr_err("%s: i2c write error!\n", __func__);
+}
+
+static void i2c_av_write4(struct i2c_adapter *i2c, u16 reg, u32 val)
+{
+	int ret;
+	u8 buf[6];
+	struct i2c_msg msg = {
+		.addr	= 0x88 >> 1,
+		.flags	= 0,
+		.buf	= buf,
+		.len	= 6
+	};
+
+	buf[0] = reg >> 8;
+	buf[1] = reg & 0xff;
+	buf[2] = val & 0xff;
+	buf[3] = (val >> 8) & 0xff;
+	buf[4] = (val >> 16) & 0xff;
+	buf[5] = val >> 24;
+
+	ret = i2c_transfer(i2c, &msg, 1);
+
+	if (ret != 1)
+		pr_err("%s: i2c write error!\n", __func__);
+}
+
+static u8 i2c_av_read(struct i2c_adapter *i2c, u16 reg)
+{
+	int ret;
+	u8 buf[2];
+	struct i2c_msg msg = {
+		.addr	= 0x88 >> 1,
+		.flags	= 0,
+		.buf	= buf,
+		.len	= 2
+	};
+
+	buf[0] = reg >> 8;
+	buf[1] = reg & 0xff;
+
+	ret = i2c_transfer(i2c, &msg, 1);
+
+	if (ret != 1)
+		pr_err("%s: i2c write error!\n", __func__);
+
+	msg.flags = I2C_M_RD;
+	msg.len = 1;
+
+	ret = i2c_transfer(i2c, &msg, 1);
+
+	if (ret != 1)
+		pr_err("%s: i2c read error!\n", __func__);
+
+	return buf[0];
+}
+
+static void i2c_av_and_or(struct i2c_adapter *i2c, u16 reg, unsigned and_mask,
+								u8 or_value)
+{
+	i2c_av_write(i2c, reg, (i2c_av_read(i2c, reg) & and_mask) | or_value);
+}
+/* set 27MHz on AUX_CLK */
+void netup_initialize(struct cx23885_dev *dev)
+{
+	struct cx23885_i2c *i2c_bus = &dev->i2c_bus[2];
+	struct i2c_adapter *i2c = &i2c_bus->i2c_adap;
+
+	/* Stop microcontroller */
+	i2c_av_and_or(i2c, 0x803, ~0x10, 0x00);
+
+	/* Aux PLL frac for 27 MHz */
+	i2c_av_write4(i2c, 0x114, 0xea0eb3);
+
+	/* Aux PLL int for 27 MHz */
+	i2c_av_write4(i2c, 0x110, 0x090319);
+
+	/* start microcontroller */
+	i2c_av_and_or(i2c, 0x803, ~0x10, 0x10);
+}