diff options
Diffstat (limited to 'drivers/media/platform/nxp/imx8-isi/imx8-isi-debug.c')
| -rw-r--r-- | drivers/media/platform/nxp/imx8-isi/imx8-isi-debug.c | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/drivers/media/platform/nxp/imx8-isi/imx8-isi-debug.c b/drivers/media/platform/nxp/imx8-isi/imx8-isi-debug.c index 6709ab7ea1f3..5e8a177da054 100644 --- a/drivers/media/platform/nxp/imx8-isi/imx8-isi-debug.c +++ b/drivers/media/platform/nxp/imx8-isi/imx8-isi-debug.c @@ -22,10 +22,11 @@ static inline u32 mxc_isi_read(struct mxc_isi_pipe *pipe, u32 reg) static int mxc_isi_debug_dump_regs_show(struct seq_file *m, void *p) { #define MXC_ISI_DEBUG_REG(name) { name, #name } - static const struct { + struct debug_regs { u32 offset; const char * const name; - } registers[] = { + }; + static const struct debug_regs registers[] = { MXC_ISI_DEBUG_REG(CHNL_CTRL), MXC_ISI_DEBUG_REG(CHNL_IMG_CTRL), MXC_ISI_DEBUG_REG(CHNL_OUT_BUF_CTRL), @@ -67,6 +68,16 @@ static int mxc_isi_debug_dump_regs_show(struct seq_file *m, void *p) MXC_ISI_DEBUG_REG(CHNL_SCL_IMG_CFG), MXC_ISI_DEBUG_REG(CHNL_FLOW_CTRL), }; + /* These registers contain the upper 4 bits of 36-bit DMA addresses. */ + static const struct debug_regs registers_36bit_dma[] = { + MXC_ISI_DEBUG_REG(CHNL_Y_BUF1_XTND_ADDR), + MXC_ISI_DEBUG_REG(CHNL_U_BUF1_XTND_ADDR), + MXC_ISI_DEBUG_REG(CHNL_V_BUF1_XTND_ADDR), + MXC_ISI_DEBUG_REG(CHNL_Y_BUF2_XTND_ADDR), + MXC_ISI_DEBUG_REG(CHNL_U_BUF2_XTND_ADDR), + MXC_ISI_DEBUG_REG(CHNL_V_BUF2_XTND_ADDR), + MXC_ISI_DEBUG_REG(CHNL_IN_BUF_XTND_ADDR), + }; struct mxc_isi_pipe *pipe = m->private; unsigned int i; @@ -77,10 +88,20 @@ static int mxc_isi_debug_dump_regs_show(struct seq_file *m, void *p) seq_printf(m, "--- ISI pipe %u registers ---\n", pipe->id); for (i = 0; i < ARRAY_SIZE(registers); ++i) - seq_printf(m, "%20s[0x%02x]: 0x%08x\n", + seq_printf(m, "%21s[0x%02x]: 0x%08x\n", registers[i].name, registers[i].offset, mxc_isi_read(pipe, registers[i].offset)); + if (pipe->isi->pdata->has_36bit_dma) { + for (i = 0; i < ARRAY_SIZE(registers_36bit_dma); ++i) { + const struct debug_regs *reg = ®isters_36bit_dma[i]; + + seq_printf(m, "%21s[0x%02x]: 0x%08x\n", + reg->name, reg->offset, + mxc_isi_read(pipe, reg->offset)); + } + } + pm_runtime_put(pipe->isi->dev); return 0; |