[PATCH 6/7] gpu: ipu-v3: ipu-csi: Remove unused functions

linux
2024-12-26T02:28:15Z

ipu_csi_get_window(), ipu_csi_is_interlaced() and
ipu_csi_set_test_generator() were added in 2014 by
commit 2ffd48f2e7ae ("gpu: ipu-v3: Add Camera Sensor Interface unit")
but have remained unused.

Remove them.

ipu_csi_set_testgen_mclk() is now unused.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
---
drivers/gpu/ipu-v3/ipu-csi.c | 108 -----------------------------------
include/video/imx-ipu-v3.h | 5 --
2 files changed, 113 deletions(-)

diff --git a/drivers/gpu/ipu-v3/ipu-csi.c b/drivers/gpu/ipu-v3/ipu-csi.c
index 778bc26d3ba5..d576b7d28437 100644
--- a/drivers/gpu/ipu-v3/ipu-csi.c
+++ b/drivers/gpu/ipu-v3/ipu-csi.c
@@ -185,32 +185,6 @@ static inline void ipu_csi_write(struct ipu_csi *csi, u32 value,
writel(value, csi->base + offset);
}

-/*
- * Set mclk division ratio for generating test mode mclk. Only used
- * for test generator.
- */
-static int ipu_csi_set_testgen_mclk(struct ipu_csi *csi, u32 pixel_clk,
- u32 ipu_clk)
-{
- u32 temp;
- int div_ratio;
-
- div_ratio = (ipu_clk / pixel_clk) - 1;
-
- if (div_ratio > 0xFF || div_ratio < 0) {
- dev_err(csi->ipu->dev,
- "value of pixel_clk extends normal range\n");
- return -EINVAL;
- }
-
- temp = ipu_csi_read(csi, CSI_SENS_CONF);
- temp &= ~CSI_SENS_CONF_DIVRATIO_MASK;
- ipu_csi_write(csi, temp | (div_ratio << CSI_SENS_CONF_DIVRATIO_SHIFT),
- CSI_SENS_CONF);
-
- return 0;
-}
-
/*
* Find the CSI data format and data width for the given V4L2 media
* bus pixel format code.
@@ -538,56 +512,6 @@ int ipu_csi_init_interface(struct ipu_csi *csi,
}
EXPORT_SYMBOL_GPL(ipu_csi_init_interface);

-bool ipu_csi_is_interlaced(struct ipu_csi *csi)
-{
- unsigned long flags;
- u32 sensor_protocol;
-
- spin_lock_irqsave(&csi->lock, flags);
- sensor_protocol =
- (ipu_csi_read(csi, CSI_SENS_CONF) &
- CSI_SENS_CONF_SENS_PRTCL_MASK) >>
- CSI_SENS_CONF_SENS_PRTCL_SHIFT;
- spin_unlock_irqrestore(&csi->lock, flags);
-
- switch (sensor_protocol) {
- case IPU_CSI_CLK_MODE_GATED_CLK:
- case IPU_CSI_CLK_MODE_NONGATED_CLK:
- case IPU_CSI_CLK_MODE_CCIR656_PROGRESSIVE:
- case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_DDR:
- case IPU_CSI_CLK_MODE_CCIR1120_PROGRESSIVE_SDR:
- return false;
- case IPU_CSI_CLK_MODE_CCIR656_INTERLACED:
- case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_DDR:
- case IPU_CSI_CLK_MODE_CCIR1120_INTERLACED_SDR:
- return true;
- default:
- dev_err(csi->ipu->dev,
- "CSI %d sensor protocol unsupported\n", csi->id);
- return false;
- }
-}
-EXPORT_SYMBOL_GPL(ipu_csi_is_interlaced);
-
-void ipu_csi_get_window(struct ipu_csi *csi, struct v4l2_rect *w)
-{
- unsigned long flags;
- u32 reg;
-
- spin_lock_irqsave(&csi->lock, flags);
-
- reg = ipu_csi_read(csi, CSI_ACT_FRM_SIZE);
- w->width = (reg & 0xFFFF) + 1;
- w->height = (reg >> 16 & 0xFFFF) + 1;
-
- reg = ipu_csi_read(csi, CSI_OUT_FRM_CTRL);
- w->left = (reg & CSI_HSC_MASK) >> CSI_HSC_SHIFT;
- w->top = (reg & CSI_VSC_MASK) >> CSI_VSC_SHIFT;
-
- spin_unlock_irqrestore(&csi->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ipu_csi_get_window);
-
void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w)
{
unsigned long flags;
@@ -624,38 +548,6 @@ void ipu_csi_set_downsize(struct ipu_csi *csi, bool horiz, bool vert)
}
EXPORT_SYMBOL_GPL(ipu_csi_set_downsize);

-void ipu_csi_set_test_generator(struct ipu_csi *csi, bool active,
- u32 r_value, u32 g_value, u32 b_value,
- u32 pix_clk)
-{
- unsigned long flags;
- u32 ipu_clk = clk_get_rate(csi->clk_ipu);
- u32 temp;
-
- spin_lock_irqsave(&csi->lock, flags);
-
- temp = ipu_csi_read(csi, CSI_TST_CTRL);
-
- if (!active) {
- temp &= ~CSI_TEST_GEN_MODE_EN;
- ipu_csi_write(csi, temp, CSI_TST_CTRL);
- } else {
- /* Set sensb_mclk div_ratio */
- ipu_csi_set_testgen_mclk(csi, pix_clk, ipu_clk);
-
- temp &= ~(CSI_TEST_GEN_R_MASK | CSI_TEST_GEN_G_MASK |
- CSI_TEST_GEN_B_MASK);
- temp |= CSI_TEST_GEN_MODE_EN;
- temp |= (r_value << CSI_TEST_GEN_R_SHIFT) |
- (g_value << CSI_TEST_GEN_G_SHIFT) |
- (b_value << CSI_TEST_GEN_B_SHIFT);
- ipu_csi_write(csi, temp, CSI_TST_CTRL);
- }
-
- spin_unlock_irqrestore(&csi->lock, flags);
-}
-EXPORT_SYMBOL_GPL(ipu_csi_set_test_generator);
-
int ipu_csi_set_mipi_datatype(struct ipu_csi *csi, u32 vc,
struct v4l2_mbus_framefmt *mbus_fmt)
{
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h
index c9ed4b6a408b..29e142e95ba3 100644
--- a/include/video/imx-ipu-v3.h
+++ b/include/video/imx-ipu-v3.h
@@ -361,13 +361,8 @@ int ipu_csi_init_interface(struct ipu_csi *csi,
const struct v4l2_mbus_config *mbus_cfg,
const struct v4l2_mbus_framefmt *infmt,
const struct v4l2_mbus_framefmt *outfmt);
-bool ipu_csi_is_interlaced(struct ipu_csi *csi);
-void ipu_csi_get_window(struct ipu_csi *csi, struct v4l2_rect *w);
void ipu_csi_set_window(struct ipu_csi *csi, struct v4l2_rect *w);
void ipu_csi_set_downsize(struct ipu_csi *csi, bool horiz, bool vert);
-void ipu_csi_set_test_generator(struct ipu_csi *csi, bool active,
- u32 r_value, u32 g_value, u32 b_value,
- u32 pix_clk);
int ipu_csi_set_mipi_datatype(struct ipu_csi *csi, u32 vc,
struct v4l2_mbus_framefmt *mbus_fmt);
int ipu_csi_set_skip_smfc(struct ipu_csi *csi, u32 skip,
--
2.47.1