This map was created from register map from datasheet (section 5.1.2).
Unused registers are stated by address, so they show up in debugfs as well.
Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
---
When dumping the registers in debugfs there are a lot of unused and/or
undocumented addresses. Instead explicitly state each readable register.
drivers/gpu/drm/bridge/tc358767.c | 195 +++++++++++++++++++++++++++++-
1 file changed, 194 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 91f7cb56a654..954881ad5bdc 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1781,7 +1781,200 @@ static const struct drm_bridge_funcs tc_edp_bridge_funcs = {
static bool tc_readable_reg(struct device *dev, unsigned int reg)
{
- return reg != SYSCTRL;
+ switch (reg) {
+ /* DSI D-PHY Layer */
+ case 0x004:
+ case 0x020:
+ case 0x024:
+ case 0x028:
+ case 0x02c:
+ case 0x030:
+ case 0x038:
+ case 0x040:
+ case 0x044:
+ case 0x048:
+ case 0x04c:
+ case 0x050:
+ case 0x054:
+ /* DSI PPI Layer */
+ case PPI_STARTPPI:
+ case 0x108:
+ case 0x110:
+ case PPI_LPTXTIMECNT:
+ case PPI_LANEENABLE:
+ case PPI_TX_RX_TA:
+ case 0x140:
+ case PPI_D0S_ATMR:
+ case PPI_D1S_ATMR:
+ case 0x14c:
+ case 0x150:
+ case PPI_D0S_CLRSIPOCOUNT:
+ case PPI_D1S_CLRSIPOCOUNT:
+ case PPI_D2S_CLRSIPOCOUNT:
+ case PPI_D3S_CLRSIPOCOUNT:
+ case 0x180:
+ case 0x184:
+ case 0x188:
+ case 0x18c:
+ case 0x190:
+ case 0x1a0:
+ case 0x1a4:
+ case 0x1a8:
+ case 0x1ac:
+ case 0x1b0:
+ case 0x1c0:
+ case 0x1c4:
+ case 0x1c8:
+ case 0x1cc:
+ case 0x1d0:
+ case 0x1e0:
+ case 0x1e4:
+ case 0x1f0:
+ case 0x1f4:
+ /* DSI Protocol Layer */
+ case DSI_STARTDSI:
+ case 0x208:
+ case DSI_LANEENABLE:
+ case 0x214:
+ case 0x218:
+ case 0x220:
+ case 0x224:
+ case 0x228:
+ case 0x230:
+ /* DSI General */
+ case 0x300:
+ /* DSI Application Layer */
+ case 0x400:
+ case 0x404:
+ /* DPI */
+ case DPIPXLFMT:
+ /* Parallel Output */
+ case POCTRL:
+ /* Video Path0 Configuration */
+ case VPCTRL0:
+ case HTIM01:
+ case HTIM02:
+ case VTIM01:
+ case VTIM02:
+ case VFUEN0:
+ /* System */
+ case TC_IDREG:
+ case 0x504:
+ case SYSSTAT:
+ case SYSRSTENB:
+ case SYSCTRL:
+ /* I2C */
+ case 0x520:
+ /* GPIO */
+ case GPIOM:
+ case GPIOC:
+ case GPIOO:
+ case GPIOI:
+ /* Interrupt */
+ case INTCTL_G:
+ case INTSTS_G:
+ case 0x570:
+ case 0x574:
+ case INT_GP0_LCNT:
+ case INT_GP1_LCNT:
+ /* DisplayPort Control */
+ case DP0CTL:
+ /* DisplayPort Clock */
+ case DP0_VIDMNGEN0:
+ case DP0_VIDMNGEN1:
+ case DP0_VMNGENSTATUS:
+ case 0x628:
+ case 0x62c:
+ case 0x630:
+ /* DisplayPort Main Channel */
+ case DP0_SECSAMPLE:
+ case DP0_VIDSYNCDELAY:
+ case DP0_TOTALVAL:
+ case DP0_STARTVAL:
+ case DP0_ACTIVEVAL:
+ case DP0_SYNCVAL:
+ case DP0_MISC:
+ /* DisplayPort Aux Channel */
+ case DP0_AUXCFG0:
+ case DP0_AUXCFG1:
+ case DP0_AUXADDR:
+ case 0x66c:
+ case 0x670:
+ case 0x674:
+ case 0x678:
+ case 0x67c:
+ case 0x680:
+ case 0x684:
+ case 0x688:
+ case DP0_AUXSTATUS:
+ case DP0_AUXI2CADR:
+ /* DisplayPort Link Training */
+ case DP0_SRCCTRL:
+ case DP0_LTSTAT:
+ case DP0_SNKLTCHGREQ:
+ case DP0_LTLOOPCTRL:
+ case DP0_SNKLTCTRL:
+ case 0x6e8:
+ case 0x6ec:
+ case 0x6f0:
+ case 0x6f4:
+ /* DisplayPort Audio */
+ case 0x700:
+ case 0x704:
+ case 0x708:
+ case 0x70c:
+ case 0x710:
+ case 0x714:
+ case 0x718:
+ case 0x71c:
+ case 0x720:
+ /* DisplayPort Source Control */
+ case DP1_SRCCTRL:
+ /* DisplayPort PHY */
+ case DP_PHY_CTRL:
+ case 0x810:
+ case 0x814:
+ case 0x820:
+ case 0x840:
+ /* I2S */
+ case 0x880:
+ case 0x888:
+ case 0x88c:
+ case 0x890:
+ case 0x894:
+ case 0x898:
+ case 0x89c:
+ case 0x8a0:
+ case 0x8a4:
+ case 0x8a8:
+ case 0x8ac:
+ case 0x8b0:
+ case 0x8b4:
+ /* PLL */
+ case DP0_PLLCTRL:
+ case DP1_PLLCTRL:
+ case PXL_PLLCTRL:
+ case PXL_PLLPARAM:
+ case SYS_PLLPARAM:
+ /* HDCP */
+ case 0x980:
+ case 0x984:
+ case 0x988:
+ case 0x98c:
+ case 0x990:
+ case 0x994:
+ case 0x998:
+ case 0x99c:
+ case 0x9a0:
+ case 0x9a4:
+ case 0x9a8:
+ case 0x9ac:
+ /* Debug */
+ case TSTCTL:
+ case PLL_DBG:
+ return true;
+ }
+ return false;
}
static const struct regmap_range tc_volatile_ranges[] = {
--
2.34.1
