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Date: Tue, 12 Apr 2022 08:55:30 -0500
From: Adam Ford <aford173@...il.com>
To: linux-media@...r.kernel.org
Cc: prabhakar.mahadev-lad.rj@...renesas.com, tharvey@...eworks.com,
cstevens@...conembedded.com, aford@...conembedded.com,
laurent.pinchart@...asonboard.com, Adam Ford <aford173@...il.com>,
Dave Stevenson <dave.stevenson@...pberrypi.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] media: i2c: imx219: Split common registers from mode tables
There are four modes, and each mode has a table of registers.
Some of the registers are common to all modes, so create new
tables for these common registers to reduce duplicate code.
Signed-off-by: Adam Ford <aford173@...il.com>
---
drivers/media/i2c/imx219.c | 103 ++++++++++++++-----------------------
1 file changed, 39 insertions(+), 64 deletions(-)
diff --git a/drivers/media/i2c/imx219.c b/drivers/media/i2c/imx219.c
index e10af3f74b38..b7cc36b16547 100644
--- a/drivers/media/i2c/imx219.c
+++ b/drivers/media/i2c/imx219.c
@@ -145,19 +145,36 @@ struct imx219_mode {
struct imx219_reg_list reg_list;
};
-/*
- * Register sets lifted off the i2C interface from the Raspberry Pi firmware
- * driver.
- * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
- */
-static const struct imx219_reg mode_3280x2464_regs[] = {
- {0x0100, 0x00},
+/* To Access Addresses 3000-5fff, send the following commands */
+static const struct imx219_reg mfg_specific_reg[] = {
+ {0x0100, 0x00}, /* Mode Select */
{0x30eb, 0x0c},
{0x30eb, 0x05},
{0x300a, 0xff},
{0x300b, 0xff},
{0x30eb, 0x05},
{0x30eb, 0x09},
+};
+
+static const struct imx219_reg pll_clk_table[] = {
+
+ {0x0301, 0x05}, /* VTPXCK_DIV */
+ {0x0303, 0x01}, /* VTSYSCK_DIV */
+ {0x0304, 0x03}, /* PREPLLCK_VT_DIV 0x03 = AUTO set */
+ {0x0305, 0x03}, /* PREPLLCK_OP_DIV 0x03 = AUTO set */
+ {0x0306, 0x00}, /* PLL_VT_MPY */
+ {0x0307, 0x39},
+ {0x030b, 0x01}, /* OP_SYS_CLK_DIV */
+ {0x030c, 0x00}, /* PLL_OP_MPY */
+ {0x030d, 0x72},
+};
+
+/*
+ * Register sets lifted off the i2C interface from the Raspberry Pi firmware
+ * driver.
+ * 3280x2464 = mode 2, 1920x1080 = mode 1, 1640x1232 = mode 4, 640x480 = mode 7.
+ */
+static const struct imx219_reg mode_3280x2464_regs[] = {
{0x0114, 0x01},
{0x0128, 0x00},
{0x012a, 0x18},
@@ -178,15 +195,6 @@ static const struct imx219_reg mode_3280x2464_regs[] = {
{0x0171, 0x01},
{0x0174, 0x00},
{0x0175, 0x00},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x0c},
{0x0625, 0xd0},
{0x0626, 0x09},
@@ -208,13 +216,6 @@ static const struct imx219_reg mode_3280x2464_regs[] = {
};
static const struct imx219_reg mode_1920_1080_regs[] = {
- {0x0100, 0x00},
- {0x30eb, 0x05},
- {0x30eb, 0x0c},
- {0x300a, 0xff},
- {0x300b, 0xff},
- {0x30eb, 0x05},
- {0x30eb, 0x09},
{0x0114, 0x01},
{0x0128, 0x00},
{0x012a, 0x18},
@@ -237,15 +238,6 @@ static const struct imx219_reg mode_1920_1080_regs[] = {
{0x0171, 0x01},
{0x0174, 0x00},
{0x0175, 0x00},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x07},
{0x0625, 0x80},
{0x0626, 0x04},
@@ -265,13 +257,6 @@ static const struct imx219_reg mode_1920_1080_regs[] = {
};
static const struct imx219_reg mode_1640_1232_regs[] = {
- {0x0100, 0x00},
- {0x30eb, 0x0c},
- {0x30eb, 0x05},
- {0x300a, 0xff},
- {0x300b, 0xff},
- {0x30eb, 0x05},
- {0x30eb, 0x09},
{0x0114, 0x01},
{0x0128, 0x00},
{0x012a, 0x18},
@@ -292,15 +277,6 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
{0x0171, 0x01},
{0x0174, 0x01},
{0x0175, 0x01},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x06},
{0x0625, 0x68},
{0x0626, 0x04},
@@ -322,13 +298,6 @@ static const struct imx219_reg mode_1640_1232_regs[] = {
};
static const struct imx219_reg mode_640_480_regs[] = {
- {0x0100, 0x00},
- {0x30eb, 0x05},
- {0x30eb, 0x0c},
- {0x300a, 0xff},
- {0x300b, 0xff},
- {0x30eb, 0x05},
- {0x30eb, 0x09},
{0x0114, 0x01},
{0x0128, 0x00},
{0x012a, 0x18},
@@ -351,15 +320,6 @@ static const struct imx219_reg mode_640_480_regs[] = {
{0x0171, 0x01},
{0x0174, 0x03},
{0x0175, 0x03},
- {0x0301, 0x05},
- {0x0303, 0x01},
- {0x0304, 0x03},
- {0x0305, 0x03},
- {0x0306, 0x00},
- {0x0307, 0x39},
- {0x030b, 0x01},
- {0x030c, 0x00},
- {0x030d, 0x72},
{0x0624, 0x06},
{0x0625, 0x68},
{0x0626, 0x04},
@@ -1041,6 +1001,13 @@ static int imx219_start_streaming(struct imx219 *imx219)
if (ret < 0)
return ret;
+ /* Send the Manufacturing Header common to all modes */
+ ret = imx219_write_regs(imx219, mfg_specific_reg, ARRAY_SIZE(mfg_specific_reg));
+ if (ret) {
+ dev_err(&client->dev, "%s failed to send mfg header\n", __func__);
+ goto err_rpm_put;
+ }
+
/* Apply default values of current mode */
reg_list = &imx219->mode->reg_list;
ret = imx219_write_regs(imx219, reg_list->regs, reg_list->num_of_regs);
@@ -1056,6 +1023,14 @@ static int imx219_start_streaming(struct imx219 *imx219)
goto err_rpm_put;
}
+ /* Configure the PLL clocks */
+ ret = imx219_write_regs(imx219, pll_clk_table, ARRAY_SIZE(pll_clk_table));
+ if (ret) {
+ dev_err(&client->dev, "%s failed to sent PLL clocks\n", __func__);
+ goto err_rpm_put;
+ }
+
+
/* Apply customized values from user */
ret = __v4l2_ctrl_handler_setup(imx219->sd.ctrl_handler);
if (ret)
--
2.34.1
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