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https://github.com/hardkernel/linux.git
synced 2026-06-07 19:30:30 +09:00
drm/bridge: synopsys: dw-hdmi-qp: Add debugfs node
Create two debugfs node to debug hdmi controller and status. Use following command to debug: Read hdmi controller register: cat /sys/kernel/debug/dw-hdmi/ctrl Write hdmi controller register: echo <reg> <val> > /sys/kernel/debug/dw-hdmi/ctrl <reg> and <val> is hexadecimal. Dump hdmi status: cat /sys/kernel/debug/dw-hdmi/status Dump results are as follows: PHY: enabled Mode: HDMI FRL Mode Pixel Clk: 1188000000Hz Color Format: YUV420 Color Depth: 10 bit Colorimetry: ITU.BT2020 EOTF: HLG x0: 0 y0: 0 x1: 0 y1: 0 x2: 0 y2: 0 white x: 0 white y: 0 max lum: 0 min lum: 0 max cll: 0 max fall: 0 Signed-off-by: Algea Cao <algea.cao@rock-chips.com> Change-Id: I385a0871076dc88f007af25cc339e8be352b6772
This commit is contained in:
Algea Cao
@@ -2093,7 +2093,7 @@ static void dw_hdmi_qp_bridge_atomic_disable(struct drm_bridge *bridge,
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extcon_set_state_sync(hdmi->extcon, EXTCON_DISP_HDMI, false);
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handle_plugged_change(hdmi, false);
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mutex_lock(&hdmi->mutex);
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hdmi->disabled = true;
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hdmi->curr_conn = NULL;
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if (hdmi->dclk_en) {
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@@ -2106,6 +2106,7 @@ static void dw_hdmi_qp_bridge_atomic_disable(struct drm_bridge *bridge,
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if (hdmi->phy.ops->disable)
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hdmi->phy.ops->disable(hdmi, hdmi->phy.data);
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hdmi->disabled = true;
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mutex_unlock(&hdmi->mutex);
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}
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@@ -2121,9 +2122,9 @@ static void dw_hdmi_qp_bridge_atomic_enable(struct drm_bridge *bridge,
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bridge->encoder);
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mutex_lock(&hdmi->mutex);
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hdmi->disabled = false;
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hdmi->curr_conn = connector;
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dw_hdmi_qp_setup(hdmi, hdmi->curr_conn, &hdmi->previous_mode);
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hdmi->disabled = false;
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mutex_unlock(&hdmi->mutex);
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if (!hdmi->dclk_en) {
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@@ -2344,6 +2345,296 @@ static const struct regmap_config hdmi_regmap_config = {
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.max_register = EARCRX_1_INT_FORCE,
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};
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struct dw_hdmi_qp_reg_table {
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int reg_base;
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int reg_end;
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};
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static const struct dw_hdmi_qp_reg_table hdmi_reg_table[] = {
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{0x0, 0xc},
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{0x14, 0x1c},
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{0x44, 0x48},
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{0x50, 0x58},
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{0x80, 0x84},
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{0xa0, 0xc4},
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{0xe0, 0xe8},
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{0xf0, 0x118},
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{0x140, 0x140},
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{0x150, 0x150},
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{0x160, 0x168},
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{0x180, 0x180},
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{0x800, 0x800},
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{0x808, 0x808},
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{0x814, 0x814},
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{0x81c, 0x824},
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{0x834, 0x834},
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{0x840, 0x864},
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{0x86c, 0x86c},
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{0x880, 0x89c},
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{0x8e0, 0x8e8},
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{0x900, 0x900},
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{0x908, 0x90c},
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{0x920, 0x938},
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{0x920, 0x938},
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{0x960, 0x960},
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{0x968, 0x968},
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{0xa20, 0xa20},
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{0xa30, 0xa30},
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{0xa40, 0xa40},
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{0xa54, 0xa54},
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{0xa80, 0xaac},
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{0xab4, 0xab8},
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{0xb00, 0xcbc},
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{0xce0, 0xce0},
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{0xd00, 0xddc},
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{0xe20, 0xe24},
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{0xe40, 0xe44},
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{0xe4c, 0xe4c},
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{0xe60, 0xe80},
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{0xea0, 0xf24},
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{0x1004, 0x100c},
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{0x1020, 0x1030},
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{0x1040, 0x1050},
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{0x1060, 0x1068},
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{0x1800, 0x1820},
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{0x182c, 0x182c},
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{0x1840, 0x1940},
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{0x1960, 0x1a60},
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{0x1b00, 0x1b00},
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{0x1c00, 0x1c00},
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{0x3000, 0x3000},
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{0x3010, 0x3014},
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{0x3020, 0x3024},
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{0x3800, 0x3800},
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{0x3810, 0x3814},
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{0x3820, 0x3824},
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{0x3830, 0x3834},
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{0x3840, 0x3844},
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{0x3850, 0x3854},
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{0x3860, 0x3864},
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{0x3870, 0x3874},
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{0x4000, 0x4004},
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{0x4800, 0x4800},
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{0x4810, 0x4814},
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};
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static int dw_hdmi_ctrl_show(struct seq_file *s, void *v)
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{
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struct dw_hdmi_qp *hdmi = s->private;
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u32 i = 0, j = 0, val = 0;
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seq_puts(s, "\n---------------------------------------------------");
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for (i = 0; i < ARRAY_SIZE(hdmi_reg_table); i++) {
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for (j = hdmi_reg_table[i].reg_base;
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j <= hdmi_reg_table[i].reg_end; j += 4) {
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val = hdmi_readl(hdmi, j);
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if ((j - hdmi_reg_table[i].reg_base) % 16 == 0)
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seq_printf(s, "\n>>>hdmi_ctl %04x:", j);
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seq_printf(s, " %08x", val);
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}
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}
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seq_puts(s, "\n---------------------------------------------------\n");
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return 0;
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}
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static int dw_hdmi_ctrl_open(struct inode *inode, struct file *file)
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{
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return single_open(file, dw_hdmi_ctrl_show, inode->i_private);
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}
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static ssize_t
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dw_hdmi_ctrl_write(struct file *file, const char __user *buf,
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size_t count, loff_t *ppos)
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{
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struct dw_hdmi_qp *hdmi =
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((struct seq_file *)file->private_data)->private;
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u32 reg, val;
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char kbuf[25];
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if (count > 24) {
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dev_err(hdmi->dev, "out of buf range\n");
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return count;
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}
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if (copy_from_user(kbuf, buf, count))
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return -EFAULT;
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kbuf[count - 1] = '\0';
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if (sscanf(kbuf, "%x %x", ®, &val) == -1)
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return -EFAULT;
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if (reg > EARCRX_1_INT_FORCE) {
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dev_err(hdmi->dev, "it is no a hdmi register\n");
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return count;
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}
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dev_info(hdmi->dev, "/**********hdmi register config******/");
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dev_info(hdmi->dev, "\n reg=%x val=%x\n", reg, val);
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hdmi_writel(hdmi, val, reg);
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return count;
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}
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static const struct file_operations dw_hdmi_ctrl_fops = {
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.owner = THIS_MODULE,
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.open = dw_hdmi_ctrl_open,
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.read = seq_read,
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.write = dw_hdmi_ctrl_write,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int dw_hdmi_status_show(struct seq_file *s, void *v)
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{
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struct dw_hdmi_qp *hdmi = s->private;
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u32 val;
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seq_puts(s, "PHY: ");
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if (hdmi->disabled) {
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seq_puts(s, "disabled\n");
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return 0;
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}
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seq_puts(s, "enabled\t\t\tMode: ");
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if (hdmi->sink_is_hdmi)
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seq_puts(s, "HDMI\n");
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else
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seq_puts(s, "DVI\n");
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if (hdmi->hdmi_data.video_mode.mpixelclock > 600000000) {
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seq_printf(s, "FRL Mode Pixel Clk: %luHz\n",
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hdmi->hdmi_data.video_mode.mpixelclock);
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} else {
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if (hdmi->hdmi_data.video_mode.mtmdsclock > 340000000)
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val = hdmi->hdmi_data.video_mode.mtmdsclock / 4;
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else
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val = hdmi->hdmi_data.video_mode.mtmdsclock;
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seq_printf(s, "TMDS Mode Pixel Clk: %luHz\t\tTMDS Clk: %uHz\n",
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hdmi->hdmi_data.video_mode.mpixelclock, val);
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}
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seq_puts(s, "Color Format: ");
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if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format))
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seq_puts(s, "RGB");
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else if (hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format))
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seq_puts(s, "YUV444");
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else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format))
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seq_puts(s, "YUV422");
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else if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format))
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seq_puts(s, "YUV420");
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else
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seq_puts(s, "UNKNOWN");
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val = hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format);
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seq_printf(s, "\t\tColor Depth: %d bit\n", val);
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seq_puts(s, "Colorimetry: ");
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switch (hdmi->hdmi_data.enc_out_encoding) {
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case V4L2_YCBCR_ENC_601:
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seq_puts(s, "ITU.BT601");
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break;
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case V4L2_YCBCR_ENC_709:
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seq_puts(s, "ITU.BT709");
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break;
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case V4L2_YCBCR_ENC_BT2020:
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seq_puts(s, "ITU.BT2020");
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break;
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default: /* Carries no data */
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seq_puts(s, "ITU.BT601");
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break;
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}
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seq_puts(s, "\t\tEOTF: ");
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val = hdmi_readl(hdmi, PKTSCHED_PKT_EN);
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if (!(val & PKTSCHED_DRMI_TX_EN)) {
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seq_puts(s, "Off\n");
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return 0;
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}
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS1);
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val = (val >> 8) & 0x7;
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switch (val) {
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case HDMI_EOTF_TRADITIONAL_GAMMA_SDR:
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seq_puts(s, "SDR");
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break;
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case HDMI_EOTF_TRADITIONAL_GAMMA_HDR:
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seq_puts(s, "HDR");
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break;
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case HDMI_EOTF_SMPTE_ST2084:
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seq_puts(s, "ST2084");
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break;
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case HDMI_EOTF_BT_2100_HLG:
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seq_puts(s, "HLG");
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break;
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default:
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seq_puts(s, "Not Defined\n");
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return 0;
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}
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS1);
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val = (val >> 16) & 0xffff;
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seq_printf(s, "\nx0: %d", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS2);
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val = val & 0xffff;
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seq_printf(s, "\t\t\t\ty0: %d\n", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS2);
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val = (val >> 16) & 0xffff;
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seq_printf(s, "x1: %d", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS3);
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val = val & 0xffff;
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seq_printf(s, "\t\t\t\ty1: %d\n", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS3);
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val = (val >> 16) & 0xffff;
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seq_printf(s, "x2: %d", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS4);
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val = val & 0xffff;
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seq_printf(s, "\t\t\t\ty2: %d\n", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS4);
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val = (val >> 16) & 0xffff;
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seq_printf(s, "white x: %d", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS5);
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val = val & 0xffff;
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seq_printf(s, "\t\t\twhite y: %d\n", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS5);
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val = (val >> 16) & 0xffff;
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seq_printf(s, "max lum: %d", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS6);
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val = val & 0xffff;
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seq_printf(s, "\t\t\tmin lum: %d\n", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS6);
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val = (val >> 16) & 0xffff;
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seq_printf(s, "max cll: %d", val);
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val = hdmi_readl(hdmi, PKT_DRMI_CONTENTS7);
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val = val & 0xffff;
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seq_printf(s, "\t\t\tmax fall: %d\n", val);
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return 0;
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}
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static int dw_hdmi_status_open(struct inode *inode, struct file *file)
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{
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return single_open(file, dw_hdmi_status_show, inode->i_private);
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}
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static const struct file_operations dw_hdmi_status_fops = {
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.owner = THIS_MODULE,
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.open = dw_hdmi_status_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static void dw_hdmi_register_debugfs(struct device *dev, struct dw_hdmi_qp *hdmi)
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{
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hdmi->debugfs_dir = debugfs_create_dir("dw-hdmi", NULL);
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if (IS_ERR(hdmi->debugfs_dir)) {
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dev_err(dev, "failed to create debugfs dir!\n");
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return;
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}
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debugfs_create_file("status", 0400, hdmi->debugfs_dir,
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hdmi, &dw_hdmi_status_fops);
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debugfs_create_file("ctrl", 0600, hdmi->debugfs_dir,
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hdmi, &dw_hdmi_ctrl_fops);
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}
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static struct dw_hdmi_qp *
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__dw_hdmi_probe(struct platform_device *pdev,
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const struct dw_hdmi_plat_data *plat_data)
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@@ -2553,6 +2844,8 @@ __dw_hdmi_probe(struct platform_device *pdev,
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if (of_property_read_bool(np, "scramble-low-rates"))
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hdmi->scramble_low_rates = true;
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dw_hdmi_register_debugfs(dev, hdmi);
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return hdmi;
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err_res:
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@@ -2575,6 +2868,8 @@ static void __dw_hdmi_remove(struct dw_hdmi_qp *hdmi)
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if (hdmi->earc_irq)
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disable_irq(hdmi->earc_irq);
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debugfs_remove_recursive(hdmi->debugfs_dir);
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if (!hdmi->plat_data->first_screen) {
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dw_hdmi_destroy_properties(hdmi);
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hdmi->connector.funcs->destroy(&hdmi->connector);
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