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author | 2022-11-03 16:30:59 +0000 | |
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committer | 2022-11-25 07:11:29 +0000 | |
commit | 2ed385697bb20304c74db0a1833358ba6ec6c181 (patch) | |
tree | 44db3e93a3c6c7cc739086a1ba3192c8ccc88685 /drivers/media/platform/sunxi | |
parent | media: sun6i-csi: Get mbus code from bridge instead of storing it (diff) | |
download | linux-2ed385697bb20304c74db0a1833358ba6ec6c181.tar.gz linux-2ed385697bb20304c74db0a1833358ba6ec6c181.tar.bz2 linux-2ed385697bb20304c74db0a1833358ba6ec6c181.zip |
media: sun6i-csi: Tidy capture configure code
Some misc code cleanups and preparation for upcoming changes.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/platform/sunxi')
-rw-r--r-- | drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c | 105 |
1 files changed, 46 insertions, 59 deletions
diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c index 58e1af51a13e..c1bd12ae166d 100644 --- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c +++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c @@ -353,133 +353,120 @@ static enum csi_input_seq get_csi_input_seq(struct sun6i_csi_device *csi_dev, static void sun6i_csi_capture_configure_interface(struct sun6i_csi_device *csi_dev) { + struct device *dev = csi_dev->dev; + struct regmap *regmap = csi_dev->regmap; struct v4l2_fwnode_endpoint *endpoint = &csi_dev->bridge.source_parallel.endpoint; + unsigned char bus_width = endpoint->bus.parallel.bus_width; + unsigned int flags = endpoint->bus.parallel.flags; u32 pixelformat, field; - unsigned char bus_width; - u32 flags; - u32 cfg = 0; - bool input_interlaced = false; + u32 value = SUN6I_CSI_IF_CFG_IF_CSI; sun6i_csi_capture_format(csi_dev, &pixelformat, &field); if (field == V4L2_FIELD_INTERLACED || field == V4L2_FIELD_INTERLACED_TB || field == V4L2_FIELD_INTERLACED_BT) - input_interlaced = true; - - bus_width = endpoint->bus.parallel.bus_width; - - if (input_interlaced) - cfg |= SUN6I_CSI_IF_CFG_SRC_TYPE_INTERLACED | - SUN6I_CSI_IF_CFG_FIELD_DT_PCLK_SHIFT(1) | - SUN6I_CSI_IF_CFG_FIELD_DT_FIELD_VSYNC; + value |= SUN6I_CSI_IF_CFG_SRC_TYPE_INTERLACED | + SUN6I_CSI_IF_CFG_FIELD_DT_PCLK_SHIFT(1) | + SUN6I_CSI_IF_CFG_FIELD_DT_FIELD_VSYNC; else - cfg |= SUN6I_CSI_IF_CFG_SRC_TYPE_PROGRESSIVE; + value |= SUN6I_CSI_IF_CFG_SRC_TYPE_PROGRESSIVE; switch (endpoint->bus_type) { case V4L2_MBUS_PARALLEL: - cfg |= SUN6I_CSI_IF_CFG_IF_CSI; - - flags = endpoint->bus.parallel.flags; - if (bus_width == 16) - cfg |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_COMBINED; + value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_COMBINED; else - cfg |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_RAW; + value |= SUN6I_CSI_IF_CFG_IF_CSI_YUV_RAW; if (flags & V4L2_MBUS_FIELD_EVEN_LOW) - cfg |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE; + value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE; else - cfg |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE; + value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE; if (flags & V4L2_MBUS_VSYNC_ACTIVE_LOW) - cfg |= SUN6I_CSI_IF_CFG_VREF_POL_NEGATIVE; + value |= SUN6I_CSI_IF_CFG_VREF_POL_NEGATIVE; else - cfg |= SUN6I_CSI_IF_CFG_VREF_POL_POSITIVE; + value |= SUN6I_CSI_IF_CFG_VREF_POL_POSITIVE; if (flags & V4L2_MBUS_HSYNC_ACTIVE_LOW) - cfg |= SUN6I_CSI_IF_CFG_HREF_POL_NEGATIVE; + value |= SUN6I_CSI_IF_CFG_HREF_POL_NEGATIVE; else - cfg |= SUN6I_CSI_IF_CFG_HREF_POL_POSITIVE; + value |= SUN6I_CSI_IF_CFG_HREF_POL_POSITIVE; if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) - cfg |= SUN6I_CSI_IF_CFG_CLK_POL_RISING; + value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING; else - cfg |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING; + value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING; break; case V4L2_MBUS_BT656: - cfg |= SUN6I_CSI_IF_CFG_IF_CSI; - - flags = endpoint->bus.parallel.flags; - if (bus_width == 16) - cfg |= SUN6I_CSI_IF_CFG_IF_CSI_BT1120; + value |= SUN6I_CSI_IF_CFG_IF_CSI_BT1120; else - cfg |= SUN6I_CSI_IF_CFG_IF_CSI_BT656; + value |= SUN6I_CSI_IF_CFG_IF_CSI_BT656; if (flags & V4L2_MBUS_FIELD_EVEN_LOW) - cfg |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE; + value |= SUN6I_CSI_IF_CFG_FIELD_NEGATIVE; else - cfg |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE; + value |= SUN6I_CSI_IF_CFG_FIELD_POSITIVE; if (flags & V4L2_MBUS_PCLK_SAMPLE_FALLING) - cfg |= SUN6I_CSI_IF_CFG_CLK_POL_RISING; + value |= SUN6I_CSI_IF_CFG_CLK_POL_RISING; else - cfg |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING; + value |= SUN6I_CSI_IF_CFG_CLK_POL_FALLING; break; default: - dev_warn(csi_dev->dev, "Unsupported bus type: %d\n", - endpoint->bus_type); + dev_warn(dev, "unsupported bus type: %d\n", endpoint->bus_type); break; } switch (bus_width) { case 8: - cfg |= SUN6I_CSI_IF_CFG_DATA_WIDTH_8; + /* 16-bit YUV formats use a doubled width in 8-bit mode. */ + case 16: + value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_8; break; case 10: - cfg |= SUN6I_CSI_IF_CFG_DATA_WIDTH_10; + value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_10; break; case 12: - cfg |= SUN6I_CSI_IF_CFG_DATA_WIDTH_12; - break; - case 16: /* No need to configure DATA_WIDTH for 16bit */ + value |= SUN6I_CSI_IF_CFG_DATA_WIDTH_12; break; default: - dev_warn(csi_dev->dev, "Unsupported bus width: %u\n", bus_width); + dev_warn(dev, "unsupported bus width: %u\n", bus_width); break; } - regmap_write(csi_dev->regmap, SUN6I_CSI_IF_CFG_REG, cfg); + regmap_write(regmap, SUN6I_CSI_IF_CFG_REG, value); } static void sun6i_csi_capture_configure_format(struct sun6i_csi_device *csi_dev) { + struct regmap *regmap = csi_dev->regmap; u32 mbus_code, pixelformat, field; - u32 cfg = 0; - u32 val; + u8 input_format, input_yuv_seq, output_format; + u32 value = 0; sun6i_csi_capture_format(csi_dev, &pixelformat, &field); sun6i_csi_bridge_format(csi_dev, &mbus_code, NULL); - val = get_csi_input_format(csi_dev, mbus_code, pixelformat); - cfg |= SUN6I_CSI_CH_CFG_INPUT_FMT(val); - - val = get_csi_output_format(csi_dev, pixelformat, field); - cfg |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(val); + input_format = get_csi_input_format(csi_dev, mbus_code, pixelformat); + input_yuv_seq = get_csi_input_seq(csi_dev, mbus_code, pixelformat); + output_format = get_csi_output_format(csi_dev, pixelformat, field); - val = get_csi_input_seq(csi_dev, mbus_code, pixelformat); - cfg |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(val); + value |= SUN6I_CSI_CH_CFG_OUTPUT_FMT(output_format); + value |= SUN6I_CSI_CH_CFG_INPUT_FMT(input_format); + value |= SUN6I_CSI_CH_CFG_INPUT_YUV_SEQ(input_yuv_seq); if (field == V4L2_FIELD_TOP) - cfg |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD0; + value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD0; else if (field == V4L2_FIELD_BOTTOM) - cfg |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD1; + value |= SUN6I_CSI_CH_CFG_FIELD_SEL_FIELD1; else - cfg |= SUN6I_CSI_CH_CFG_FIELD_SEL_EITHER; + value |= SUN6I_CSI_CH_CFG_FIELD_SEL_EITHER; - regmap_write(csi_dev->regmap, SUN6I_CSI_CH_CFG_REG, cfg); + regmap_write(regmap, SUN6I_CSI_CH_CFG_REG, value); } static void sun6i_csi_capture_configure_window(struct sun6i_csi_device *csi_dev) |