diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-1082-drivers-media-cfe-Don-t-confuse-MHz-and-Mbps.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-1082-drivers-media-cfe-Don-t-confuse-MHz-and-Mbps.patch | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-1082-drivers-media-cfe-Don-t-confuse-MHz-and-Mbps.patch b/target/linux/bcm27xx/patches-6.1/950-1082-drivers-media-cfe-Don-t-confuse-MHz-and-Mbps.patch new file mode 100644 index 0000000000..ea0ea396ba --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-1082-drivers-media-cfe-Don-t-confuse-MHz-and-Mbps.patch @@ -0,0 +1,96 @@ +From 65407c54fb4119e528b70b329448269657e0941e Mon Sep 17 00:00:00 2001 +From: Naushir Patuck <naush@raspberrypi.com> +Date: Wed, 8 Nov 2023 10:05:05 +0000 +Subject: [PATCH] drivers: media: cfe: Don't confuse MHz and Mbps + +The driver was interchaning these units when talking about link rate. +Fix this to avoid confusion. Apart from the logging message change, +there is no function change in this commit. + +Signed-off-by: Naushir Patuck <naush@raspberrypi.com> +--- + drivers/media/platform/raspberrypi/rp1_cfe/cfe.c | 8 ++++---- + drivers/media/platform/raspberrypi/rp1_cfe/dphy.c | 10 +++++----- + drivers/media/platform/raspberrypi/rp1_cfe/dphy.h | 2 +- + 3 files changed, 10 insertions(+), 10 deletions(-) + +--- a/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c ++++ b/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c +@@ -983,7 +983,7 @@ static void cfe_buffer_queue(struct vb2_ + spin_unlock_irqrestore(&cfe->state_lock, flags); + } + +-static u64 sensor_link_frequency(struct cfe_device *cfe) ++static u64 sensor_link_rate(struct cfe_device *cfe) + { + struct v4l2_mbus_framefmt *source_fmt; + struct v4l2_subdev_state *state; +@@ -1028,11 +1028,11 @@ static u64 sensor_link_frequency(struct + + /* x2 for DDR. */ + link_freq *= 2; +- cfe_info("Using a link frequency of %lld Hz\n", link_freq); ++ cfe_info("Using a link rate of %lld Mbps\n", link_freq / (1000 * 1000)); + return link_freq; + + err: +- cfe_err("Unable to determine sensor link frequency, using 999 MHz\n"); ++ cfe_err("Unable to determine sensor link rate, using 999 Mbps\n"); + return 999 * 1000000UL; + } + +@@ -1104,7 +1104,7 @@ static int cfe_start_streaming(struct vb + } + + cfe_dbg("Configuring CSI-2 block\n"); +- cfe->csi2.dphy.dphy_freq = sensor_link_frequency(cfe) / 1000000UL; ++ cfe->csi2.dphy.dphy_rate = sensor_link_rate(cfe) / 1000000UL; + csi2_open_rx(&cfe->csi2); + + cfe_dbg("Starting sensor streaming\n"); +--- a/drivers/media/platform/raspberrypi/rp1_cfe/dphy.c ++++ b/drivers/media/platform/raspberrypi/rp1_cfe/dphy.c +@@ -96,7 +96,7 @@ static uint8_t dphy_transaction(struct d + return get_tstdout(dphy); + } + +-static void dphy_set_hsfreqrange(struct dphy_data *dphy, uint32_t freq_mhz) ++static void dphy_set_hsfreqrange(struct dphy_data *dphy, uint32_t mbps) + { + /* See Table 5-1 on page 65 of dphy databook */ + static const u16 hsfreqrange_table[][2] = { +@@ -116,11 +116,11 @@ static void dphy_set_hsfreqrange(struct + }; + unsigned int i; + +- if (freq_mhz < 80 || freq_mhz > 1500) +- dphy_err("DPHY: Frequency %u MHz out of range\n", freq_mhz); ++ if (mbps < 80 || mbps > 1500) ++ dphy_err("DPHY: Datarate %u Mbps out of range\n", mbps); + + for (i = 0; i < ARRAY_SIZE(hsfreqrange_table) - 1; i++) { +- if (freq_mhz <= hsfreqrange_table[i][0]) ++ if (mbps <= hsfreqrange_table[i][0]) + break; + } + +@@ -139,7 +139,7 @@ static void dphy_init(struct dphy_data * + set_tstclr(dphy, 0); + usleep_range(15, 20); + +- dphy_set_hsfreqrange(dphy, dphy->dphy_freq); ++ dphy_set_hsfreqrange(dphy, dphy->dphy_rate); + + usleep_range(5, 10); + dw_csi2_host_write(dphy, PHY_SHUTDOWNZ, 1); +--- a/drivers/media/platform/raspberrypi/rp1_cfe/dphy.h ++++ b/drivers/media/platform/raspberrypi/rp1_cfe/dphy.h +@@ -15,7 +15,7 @@ struct dphy_data { + + void __iomem *base; + +- u32 dphy_freq; ++ u32 dphy_rate; + u32 num_lanes; + }; + |